./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/bin/utaipan-g80aRyZoba/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_d998115a-ad9a-43e9-b7a1-fe14adeca486/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8ac7ef6163593244979442da2bd08044f9730d00931e1e4e35783fd5a897b362 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:28:35,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:28:35,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:28:35,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:28:35,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:28:35,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:28:35,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:28:35,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:28:35,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:28:35,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:28:35,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:28:35,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:28:35,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:28:35,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:28:35,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:28:35,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:28:35,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:28:35,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:28:35,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:28:35,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:28:35,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:28:35,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:28:35,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:28:35,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:28:35,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:28:35,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:28:35,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:28:35,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:28:35,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:28:35,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:28:35,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:28:35,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:28:35,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:28:35,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:28:35,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:28:35,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:28:35,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:28:35,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:28:35,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:28:35,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:28:35,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:28:35,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:28:35,617 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:28:35,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:28:35,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:28:35,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:28:35,620 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:28:35,620 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:28:35,620 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:28:35,620 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:28:35,621 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:28:35,621 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:28:35,621 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:28:35,621 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:28:35,622 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:28:35,622 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:28:35,622 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:28:35,622 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:28:35,623 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:28:35,623 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:28:35,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:28:35,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:28:35,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:28:35,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:28:35,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:28:35,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:28:35,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:28:35,626 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:28:35,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:28:35,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:28:35,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:28:35,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:28:35,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:28:35,627 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:28:35,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:28:35,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:28:35,628 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:28:35,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:28:35,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:28:35,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:28:35,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ac7ef6163593244979442da2bd08044f9730d00931e1e4e35783fd5a897b362 [2022-11-22 01:28:35,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:28:35,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:28:35,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:28:35,927 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:28:35,931 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:28:35,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2022-11-22 01:28:39,072 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:28:39,939 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:28:39,941 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2022-11-22 01:28:40,027 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/bin/utaipan-g80aRyZoba/data/6ed5aee97/372a930105fc451e973c01a60bbd9e47/FLAGfb790457a [2022-11-22 01:28:40,046 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/bin/utaipan-g80aRyZoba/data/6ed5aee97/372a930105fc451e973c01a60bbd9e47 [2022-11-22 01:28:40,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:28:40,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:28:40,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:28:40,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:28:40,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:28:40,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:28:40" (1/1) ... [2022-11-22 01:28:40,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14831812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:40, skipping insertion in model container [2022-11-22 01:28:40,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:28:40" (1/1) ... [2022-11-22 01:28:40,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:28:40,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:28:45,685 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/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] [2022-11-22 01:28:45,700 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/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] [2022-11-22 01:28:45,701 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/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] [2022-11-22 01:28:45,702 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/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] [2022-11-22 01:28:45,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:28:45,791 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:28:46,466 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/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] [2022-11-22 01:28:46,467 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/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] [2022-11-22 01:28:46,468 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/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] [2022-11-22 01:28:46,468 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/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] [2022-11-22 01:28:46,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:28:46,938 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:28:46,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:46 WrapperNode [2022-11-22 01:28:46,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:28:46,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:28:46,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:28:46,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:28:46,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:46" (1/1) ... [2022-11-22 01:28:47,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:46" (1/1) ... [2022-11-22 01:28:47,628 INFO L138 Inliner]: procedures = 710, calls = 4710, calls flagged for inlining = 342, calls inlined = 329, statements flattened = 9466 [2022-11-22 01:28:47,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:28:47,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:28:47,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:28:47,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:28:47,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:46" (1/1) ... [2022-11-22 01:28:47,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:46" (1/1) ... [2022-11-22 01:28:47,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:46" (1/1) ... [2022-11-22 01:28:47,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:46" (1/1) ... [2022-11-22 01:28:48,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:46" (1/1) ... [2022-11-22 01:28:48,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:46" (1/1) ... [2022-11-22 01:28:48,401 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:46" (1/1) ... [2022-11-22 01:28:48,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:46" (1/1) ... [2022-11-22 01:28:48,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:28:48,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:28:48,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:28:48,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:28:48,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:46" (1/1) ... [2022-11-22 01:28:48,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:28:48,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:48,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:28:48,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d998115a-ad9a-43e9-b7a1-fe14adeca486/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:28:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_destroy_entities [2022-11-22 01:28:48,600 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_destroy_entities [2022-11-22 01:28:48,600 INFO L130 BoogieDeclarations]: Found specification of procedure lif_s_stream [2022-11-22 01:28:48,600 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_s_stream [2022-11-22 01:28:48,600 INFO L130 BoogieDeclarations]: Found specification of procedure uds_enum_mbus_code [2022-11-22 01:28:48,600 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_enum_mbus_code [2022-11-22 01:28:48,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:28:48,601 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:28:48,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_vsp1_video [2022-11-22 01:28:48,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_vsp1_video [2022-11-22 01:28:48,601 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_prepare_buf [2022-11-22 01:28:48,601 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_prepare_buf [2022-11-22 01:28:48,601 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_dqbuf [2022-11-22 01:28:48,601 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_dqbuf [2022-11-22 01:28:48,602 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_get_format [2022-11-22 01:28:48,602 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_get_format [2022-11-22 01:28:48,602 INFO L130 BoogieDeclarations]: Found specification of procedure sru_enum_frame_size [2022-11-22 01:28:48,603 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_enum_frame_size [2022-11-22 01:28:48,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:28:48,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:28:48,604 INFO L130 BoogieDeclarations]: Found specification of procedure to_uds [2022-11-22 01:28:48,604 INFO L138 BoogieDeclarations]: Found implementation of procedure to_uds [2022-11-22 01:28:48,605 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_video [2022-11-22 01:28:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_video [2022-11-22 01:28:48,605 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_buffer_prepare [2022-11-22 01:28:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_buffer_prepare [2022-11-22 01:28:48,605 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_remote_pad [2022-11-22 01:28:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_remote_pad [2022-11-22 01:28:48,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:28:48,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:28:48,606 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-22 01:28:48,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-22 01:28:48,607 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_init_formats [2022-11-22 01:28:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_init_formats [2022-11-22 01:28:48,607 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_init [2022-11-22 01:28:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_init [2022-11-22 01:28:48,607 INFO L130 BoogieDeclarations]: Found specification of procedure uds_try_format [2022-11-22 01:28:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_try_format [2022-11-22 01:28:48,607 INFO L130 BoogieDeclarations]: Found specification of procedure uds_enum_frame_size [2022-11-22 01:28:48,608 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_enum_frame_size [2022-11-22 01:28:48,608 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:28:48,608 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:28:48,608 INFO L130 BoogieDeclarations]: Found specification of procedure to_lut [2022-11-22 01:28:48,609 INFO L138 BoogieDeclarations]: Found implementation of procedure to_lut [2022-11-22 01:28:48,609 INFO L130 BoogieDeclarations]: Found specification of procedure sru_enum_mbus_code [2022-11-22 01:28:48,609 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_enum_mbus_code [2022-11-22 01:28:48,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_51 [2022-11-22 01:28:48,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_51 [2022-11-22 01:28:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure lut_get_format [2022-11-22 01:28:48,610 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_get_format [2022-11-22 01:28:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure sru_get_format [2022-11-22 01:28:48,610 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_get_format [2022-11-22 01:28:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_53 [2022-11-22 01:28:48,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_53 [2022-11-22 01:28:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_read [2022-11-22 01:28:48,611 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_read [2022-11-22 01:28:48,611 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_irq_handler [2022-11-22 01:28:48,611 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_irq_handler [2022-11-22 01:28:48,611 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_enum_frame_size [2022-11-22 01:28:48,612 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_enum_frame_size [2022-11-22 01:28:48,612 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_frame_end [2022-11-22 01:28:48,612 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_frame_end [2022-11-22 01:28:48,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:28:48,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:28:48,613 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:28:48,613 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:28:48,613 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_dma_contig_cleanup_ctx [2022-11-22 01:28:48,614 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_dma_contig_cleanup_ctx [2022-11-22 01:28:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure wpf_s_stream [2022-11-22 01:28:48,614 INFO L138 BoogieDeclarations]: Found implementation of procedure wpf_s_stream [2022-11-22 01:28:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:28:48,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:28:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_selection [2022-11-22 01:28:48,616 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_selection [2022-11-22 01:28:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 01:28:48,616 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 01:28:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure uds_s_stream [2022-11-22 01:28:48,617 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_s_stream [2022-11-22 01:28:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-22 01:28:48,617 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-22 01:28:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_uds_write [2022-11-22 01:28:48,617 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_uds_write [2022-11-22 01:28:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:28:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_cleanup [2022-11-22 01:28:48,618 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_cleanup [2022-11-22 01:28:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-22 01:28:48,619 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-22 01:28:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2022-11-22 01:28:48,619 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2022-11-22 01:28:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure sru_s_stream [2022-11-22 01:28:48,620 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_s_stream [2022-11-22 01:28:48,620 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:28:48,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:28:48,620 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_format [2022-11-22 01:28:48,621 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_format [2022-11-22 01:28:48,621 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-22 01:28:48,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-22 01:28:48,621 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_reqbufs [2022-11-22 01:28:48,621 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_reqbufs [2022-11-22 01:28:48,621 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_is_locked [2022-11-22 01:28:48,622 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_is_locked [2022-11-22 01:28:48,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:28:48,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:28:48,623 INFO L130 BoogieDeclarations]: Found specification of procedure to_rwpf [2022-11-22 01:28:48,624 INFO L138 BoogieDeclarations]: Found implementation of procedure to_rwpf [2022-11-22 01:28:48,628 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_get_format_info [2022-11-22 01:28:48,629 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_get_format_info [2022-11-22 01:28:48,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:28:48,629 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_enum_mbus_code [2022-11-22 01:28:48,630 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_enum_mbus_code [2022-11-22 01:28:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:28:48,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:28:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:28:48,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:28:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-22 01:28:48,638 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-22 01:28:48,638 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_ready [2022-11-22 01:28:48,638 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_ready [2022-11-22 01:28:48,638 INFO L130 BoogieDeclarations]: Found specification of procedure sru_s_ctrl [2022-11-22 01:28:48,639 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_s_ctrl [2022-11-22 01:28:48,639 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_set_selection [2022-11-22 01:28:48,639 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_set_selection [2022-11-22 01:28:48,640 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_hsit_write [2022-11-22 01:28:48,640 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_hsit_write [2022-11-22 01:28:48,640 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_set_format [2022-11-22 01:28:48,640 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_set_format [2022-11-22 01:28:48,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 01:28:48,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 01:28:48,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:28:48,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:28:48,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:28:48,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:28:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:28:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-22 01:28:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-22 01:28:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2022-11-22 01:28:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2022-11-22 01:28:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-22 01:28:48,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-22 01:28:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_7 [2022-11-22 01:28:48,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_7 [2022-11-22 01:28:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure lif_enum_frame_size [2022-11-22 01:28:48,643 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_enum_frame_size [2022-11-22 01:28:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_6 [2022-11-22 01:28:48,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_6 [2022-11-22 01:28:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:28:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure sru_set_format [2022-11-22 01:28:48,644 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_set_format [2022-11-22 01:28:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:28:48,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:28:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:28:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure to_hsit [2022-11-22 01:28:48,645 INFO L138 BoogieDeclarations]: Found implementation of procedure to_hsit [2022-11-22 01:28:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_write [2022-11-22 01:28:48,645 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_write [2022-11-22 01:28:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:28:48,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:28:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_start_streaming [2022-11-22 01:28:48,646 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_start_streaming [2022-11-22 01:28:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:28:48,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:28:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata___1 [2022-11-22 01:28:48,647 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata___1 [2022-11-22 01:28:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_get_format [2022-11-22 01:28:48,647 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_get_format [2022-11-22 01:28:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_vsp1_pipeline [2022-11-22 01:28:48,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_vsp1_pipeline [2022-11-22 01:28:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_open [2022-11-22 01:28:48,648 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_open [2022-11-22 01:28:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_video_buffer [2022-11-22 01:28:48,648 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_video_buffer [2022-11-22 01:28:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_pipeline [2022-11-22 01:28:48,648 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_pipeline [2022-11-22 01:28:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure rpf_vdev_queue [2022-11-22 01:28:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure rpf_vdev_queue [2022-11-22 01:28:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_type [2022-11-22 01:28:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_type [2022-11-22 01:28:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-11-22 01:28:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-11-22 01:28:48,650 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-22 01:28:48,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-22 01:28:48,650 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:28:48,650 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:28:48,650 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-22 01:28:48,650 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-22 01:28:48,650 INFO L130 BoogieDeclarations]: Found specification of procedure sru_try_format [2022-11-22 01:28:48,651 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_try_format [2022-11-22 01:28:48,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:28:48,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:28:48,651 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pm_suspend [2022-11-22 01:28:48,651 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pm_suspend [2022-11-22 01:28:48,651 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 01:28:48,652 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 01:28:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_clocks_enable [2022-11-22 01:28:48,652 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_clocks_enable [2022-11-22 01:28:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_try_format [2022-11-22 01:28:48,652 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_try_format [2022-11-22 01:28:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure to_sru [2022-11-22 01:28:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sru [2022-11-22 01:28:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure uds_output_size [2022-11-22 01:28:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_output_size [2022-11-22 01:28:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_finish [2022-11-22 01:28:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_finish [2022-11-22 01:28:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure lut_s_stream [2022-11-22 01:28:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_s_stream [2022-11-22 01:28:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_cleanup [2022-11-22 01:28:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_cleanup [2022-11-22 01:28:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:28:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:28:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_create_bufs [2022-11-22 01:28:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_create_bufs [2022-11-22 01:28:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:28:48,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:28:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure uds_passband_width [2022-11-22 01:28:48,655 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_passband_width [2022-11-22 01:28:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_clocks_disable [2022-11-22 01:28:48,655 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_clocks_disable [2022-11-22 01:28:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_lif_write [2022-11-22 01:28:48,656 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_lif_write [2022-11-22 01:28:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:28:48,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:28:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_get_pad_format [2022-11-22 01:28:48,656 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_get_pad_format [2022-11-22 01:28:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_init [2022-11-22 01:28:48,657 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_init [2022-11-22 01:28:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 01:28:48,657 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 01:28:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:28:48,657 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:28:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_sru_write [2022-11-22 01:28:48,658 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_sru_write [2022-11-22 01:28:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_set_format [2022-11-22 01:28:48,663 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_set_format [2022-11-22 01:28:48,663 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rpf_write [2022-11-22 01:28:48,663 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rpf_write [2022-11-22 01:28:48,663 INFO L130 BoogieDeclarations]: Found specification of procedure __vsp1_video_try_format [2022-11-22 01:28:48,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __vsp1_video_try_format [2022-11-22 01:28:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-22 01:28:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-22 01:28:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_create_link [2022-11-22 01:28:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_create_link [2022-11-22 01:28:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-22 01:28:48,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-22 01:28:48,667 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_release [2022-11-22 01:28:48,667 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_release [2022-11-22 01:28:48,667 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2022-11-22 01:28:48,667 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2022-11-22 01:28:48,667 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-22 01:28:48,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-22 01:28:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_remove [2022-11-22 01:28:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_remove [2022-11-22 01:28:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pm_resume [2022-11-22 01:28:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pm_resume [2022-11-22 01:28:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:28:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:28:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:28:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure uds_output_limits [2022-11-22 01:28:48,669 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_output_limits [2022-11-22 01:28:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:28:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_run [2022-11-22 01:28:48,669 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_run [2022-11-22 01:28:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure uds_compute_ratio [2022-11-22 01:28:48,669 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_compute_ratio [2022-11-22 01:28:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_stop_streaming [2022-11-22 01:28:48,670 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_stop_streaming [2022-11-22 01:28:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:28:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure uds_set_format [2022-11-22 01:28:48,670 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_set_format [2022-11-22 01:28:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_probe [2022-11-22 01:28:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_probe [2022-11-22 01:28:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-22 01:28:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-22 01:28:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_hsit_create [2022-11-22 01:28:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_hsit_create [2022-11-22 01:28:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-22 01:28:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-22 01:28:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-22 01:28:48,672 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-22 01:28:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2022-11-22 01:28:48,672 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2022-11-22 01:28:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:28:48,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:28:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2022-11-22 01:28:48,673 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2022-11-22 01:28:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_querybuf [2022-11-22 01:28:48,673 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_querybuf [2022-11-22 01:28:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 01:28:48,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 01:28:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_entity [2022-11-22 01:28:48,674 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_entity [2022-11-22 01:28:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure to_lif [2022-11-22 01:28:48,674 INFO L138 BoogieDeclarations]: Found implementation of procedure to_lif [2022-11-22 01:28:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_set_format [2022-11-22 01:28:48,674 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_set_format [2022-11-22 01:28:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___3 [2022-11-22 01:28:48,674 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___3 [2022-11-22 01:28:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_link_validate [2022-11-22 01:28:48,675 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_link_validate [2022-11-22 01:28:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___2 [2022-11-22 01:28:48,675 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___2 [2022-11-22 01:28:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_prepare [2022-11-22 01:28:48,675 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_prepare [2022-11-22 01:28:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2022-11-22 01:28:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_enum_mbus_code [2022-11-22 01:28:48,676 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_enum_mbus_code [2022-11-22 01:28:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-22 01:28:48,676 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-22 01:28:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___5 [2022-11-22 01:28:48,676 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___5 [2022-11-22 01:28:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___4 [2022-11-22 01:28:48,677 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___4 [2022-11-22 01:28:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure lif_set_format [2022-11-22 01:28:48,677 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_set_format [2022-11-22 01:28:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure lut_enum_mbus_code [2022-11-22 01:28:48,677 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_enum_mbus_code [2022-11-22 01:28:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure lif_get_format [2022-11-22 01:28:48,678 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_get_format [2022-11-22 01:28:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_crop [2022-11-22 01:28:48,678 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_crop [2022-11-22 01:28:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:28:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure clk_prepare_enable [2022-11-22 01:28:48,678 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_prepare_enable [2022-11-22 01:28:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:28:48,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:28:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_querycap [2022-11-22 01:28:48,679 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_querycap [2022-11-22 01:28:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2022-11-22 01:28:48,679 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2022-11-22 01:28:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_buffer_queue [2022-11-22 01:28:48,680 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_buffer_queue [2022-11-22 01:28:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_init [2022-11-22 01:28:48,680 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_init [2022-11-22 01:28:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure rpf_s_stream [2022-11-22 01:28:48,680 INFO L138 BoogieDeclarations]: Found implementation of procedure rpf_s_stream [2022-11-22 01:28:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vsp1_platform_driver_exit_28_2 [2022-11-22 01:28:48,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vsp1_platform_driver_exit_28_2 [2022-11-22 01:28:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_pipeline_stop [2022-11-22 01:28:48,681 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_pipeline_stop [2022-11-22 01:28:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_set_subdevdata [2022-11-22 01:28:48,681 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_set_subdevdata [2022-11-22 01:28:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure lut_set_format [2022-11-22 01:28:48,681 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_set_format [2022-11-22 01:28:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_enum_frame_size [2022-11-22 01:28:48,682 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_enum_frame_size [2022-11-22 01:28:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure lut_enum_frame_size [2022-11-22 01:28:48,682 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_enum_frame_size [2022-11-22 01:28:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2022-11-22 01:28:48,682 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2022-11-22 01:28:48,683 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_s_stream [2022-11-22 01:28:48,683 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_s_stream [2022-11-22 01:28:48,683 INFO L130 BoogieDeclarations]: Found specification of procedure wpf_vdev_queue [2022-11-22 01:28:48,683 INFO L138 BoogieDeclarations]: Found implementation of procedure wpf_vdev_queue [2022-11-22 01:28:48,683 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-22 01:28:48,683 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-22 01:28:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:28:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:28:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure uds_get_format [2022-11-22 01:28:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_get_format [2022-11-22 01:28:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-22 01:28:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-22 01:28:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2022-11-22 01:28:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2022-11-22 01:28:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_qbuf [2022-11-22 01:28:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_qbuf [2022-11-22 01:28:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure lif_enum_mbus_code [2022-11-22 01:28:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_enum_mbus_code [2022-11-22 01:28:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:28:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-22 01:28:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-22 01:28:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:28:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:28:50,483 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:28:50,493 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:28:55,264 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:30:15,758 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:30:15,978 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:30:18,115 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:30:18,115 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-22 01:30:18,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:30:18 BoogieIcfgContainer [2022-11-22 01:30:18,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:30:18,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:30:18,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:30:18,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:30:18,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:28:40" (1/3) ... [2022-11-22 01:30:18,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba92e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:30:18, skipping insertion in model container [2022-11-22 01:30:18,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:46" (2/3) ... [2022-11-22 01:30:18,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba92e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:30:18, skipping insertion in model container [2022-11-22 01:30:18,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:30:18" (3/3) ... [2022-11-22 01:30:18,135 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2022-11-22 01:30:18,156 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:30:18,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 01:30:18,275 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:30:18,287 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@679d248e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:30:18,287 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 01:30:18,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 2850 states, 1769 states have (on average 1.3380440927077444) internal successors, (2367), 1792 states have internal predecessors, (2367), 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) [2022-11-22 01:30:18,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1125 [2022-11-22 01:30:18,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:18,393 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:30:18,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:30:18,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:18,403 INFO L85 PathProgramCache]: Analyzing trace with hash 717802290, now seen corresponding path program 1 times [2022-11-22 01:30:18,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:18,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631558346] [2022-11-22 01:30:18,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:18,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:21,341 INFO L134 CoverageAnalysis]: Checked inductivity of 48183 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48183 trivial. 0 not checked. [2022-11-22 01:30:21,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:21,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631558346] [2022-11-22 01:30:21,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631558346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:21,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:30:21,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:30:21,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844364403] [2022-11-22 01:30:21,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:21,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:30:21,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:21,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:30:21,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:30:21,416 INFO L87 Difference]: Start difference. First operand has 2850 states, 1769 states have (on average 1.3380440927077444) internal successors, (2367), 1792 states have internal predecessors, (2367), 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) [2022-11-22 01:30:32,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:30:37,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:30:43,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:43,250 INFO L93 Difference]: Finished difference Result 7987 states and 11760 transitions. [2022-11-22 01:30:43,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:30:43,253 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 [2022-11-22 01:30:43,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:43,325 INFO L225 Difference]: With dead ends: 7987 [2022-11-22 01:30:43,326 INFO L226 Difference]: Without dead ends: 5340 [2022-11-22 01:30:43,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:30:43,355 INFO L413 NwaCegarLoop]: 4311 mSDtfsCounter, 3675 mSDsluCounter, 3524 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3678 SdHoareTripleChecker+Valid, 7835 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1167 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:43,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3678 Valid, 7835 Invalid, 1190 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 1167 Invalid, 1 Unknown, 0 Unchecked, 21.2s Time] [2022-11-22 01:30:43,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5340 states. [2022-11-22 01:30:43,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5340 to 5335. [2022-11-22 01:30:43,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 3361 states have (on average 1.3403748884260638) internal successors, (4505), 3405 states have internal predecessors, (4505), 1619 states have call successors, (1619), 353 states have call predecessors, (1619), 352 states have return successors, (1618), 1606 states have call predecessors, (1618), 1615 states have call successors, (1618) [2022-11-22 01:30:43,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 7742 transitions. [2022-11-22 01:30:43,866 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 7742 transitions. Word has length 1124 [2022-11-22 01:30:43,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:43,875 INFO L495 AbstractCegarLoop]: Abstraction has 5335 states and 7742 transitions. [2022-11-22 01:30:43,875 INFO L496 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) [2022-11-22 01:30:43,875 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 7742 transitions. [2022-11-22 01:30:43,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2022-11-22 01:30:43,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:43,988 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:30:43,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:30:43,989 INFO L420 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)] === [2022-11-22 01:30:43,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:43,990 INFO L85 PathProgramCache]: Analyzing trace with hash -418175265, now seen corresponding path program 1 times [2022-11-22 01:30:43,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:43,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686962929] [2022-11-22 01:30:43,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:43,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:45,546 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-11-22 01:30:45,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:45,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686962929] [2022-11-22 01:30:45,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686962929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:45,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:30:45,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:30:45,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330822763] [2022-11-22 01:30:45,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:45,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:30:45,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:45,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:30:45,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:30:45,562 INFO L87 Difference]: Start difference. First operand 5335 states and 7742 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) [2022-11-22 01:31:00,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:31:06,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:06,965 INFO L93 Difference]: Finished difference Result 15343 states and 22240 transitions. [2022-11-22 01:31:06,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:31:06,967 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 [2022-11-22 01:31:06,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:07,044 INFO L225 Difference]: With dead ends: 15343 [2022-11-22 01:31:07,045 INFO L226 Difference]: Without dead ends: 10229 [2022-11-22 01:31:07,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:07,074 INFO L413 NwaCegarLoop]: 4281 mSDtfsCounter, 3573 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3576 SdHoareTripleChecker+Valid, 7784 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:07,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3576 Valid, 7784 Invalid, 1215 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 1185 Invalid, 1 Unknown, 0 Unchecked, 20.9s Time] [2022-11-22 01:31:07,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10229 states. [2022-11-22 01:31:07,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10229 to 10202. [2022-11-22 01:31:07,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10202 states, 6447 states have (on average 1.3392275476966031) internal successors, (8634), 6538 states have internal predecessors, (8634), 3051 states have call successors, (3051), 702 states have call predecessors, (3051), 701 states have return successors, (3056), 3021 states have call predecessors, (3056), 3047 states have call successors, (3056) [2022-11-22 01:31:07,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10202 states to 10202 states and 14741 transitions. [2022-11-22 01:31:07,796 INFO L78 Accepts]: Start accepts. Automaton has 10202 states and 14741 transitions. Word has length 1141 [2022-11-22 01:31:07,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:07,799 INFO L495 AbstractCegarLoop]: Abstraction has 10202 states and 14741 transitions. [2022-11-22 01:31:07,800 INFO L496 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) [2022-11-22 01:31:07,801 INFO L276 IsEmpty]: Start isEmpty. Operand 10202 states and 14741 transitions. [2022-11-22 01:31:07,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2022-11-22 01:31:07,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:07,821 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:31:07,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:31:07,835 INFO L420 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)] === [2022-11-22 01:31:07,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:07,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1980328128, now seen corresponding path program 1 times [2022-11-22 01:31:07,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:07,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334740240] [2022-11-22 01:31:07,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:07,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:09,104 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-11-22 01:31:09,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:09,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334740240] [2022-11-22 01:31:09,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334740240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:31:09,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:31:09,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:31:09,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635931336] [2022-11-22 01:31:09,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:31:09,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:31:09,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:09,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:31:09,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:09,108 INFO L87 Difference]: Start difference. First operand 10202 states and 14741 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) [2022-11-22 01:31:15,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:31:19,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:31:28,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:28,835 INFO L93 Difference]: Finished difference Result 24895 states and 35937 transitions. [2022-11-22 01:31:28,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:31:28,836 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 [2022-11-22 01:31:28,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:28,934 INFO L225 Difference]: With dead ends: 24895 [2022-11-22 01:31:28,935 INFO L226 Difference]: Without dead ends: 14914 [2022-11-22 01:31:28,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:28,990 INFO L413 NwaCegarLoop]: 4311 mSDtfsCounter, 3668 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3671 SdHoareTripleChecker+Valid, 7841 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:28,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3671 Valid, 7841 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1140 Invalid, 1 Unknown, 0 Unchecked, 19.2s Time] [2022-11-22 01:31:29,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14914 states. [2022-11-22 01:31:29,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14914 to 14887. [2022-11-22 01:31:29,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14887 states, 9419 states have (on average 1.3375092897335175) internal successors, (12598), 9552 states have internal predecessors, (12598), 4423 states have call successors, (4423), 1043 states have call predecessors, (4423), 1042 states have return successors, (4434), 4375 states have call predecessors, (4434), 4419 states have call successors, (4434) [2022-11-22 01:31:29,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14887 states to 14887 states and 21455 transitions. [2022-11-22 01:31:29,981 INFO L78 Accepts]: Start accepts. Automaton has 14887 states and 21455 transitions. Word has length 1141 [2022-11-22 01:31:29,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:29,983 INFO L495 AbstractCegarLoop]: Abstraction has 14887 states and 21455 transitions. [2022-11-22 01:31:29,983 INFO L496 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) [2022-11-22 01:31:29,983 INFO L276 IsEmpty]: Start isEmpty. Operand 14887 states and 21455 transitions. [2022-11-22 01:31:30,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1146 [2022-11-22 01:31:30,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:30,002 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:31:30,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:31:30,002 INFO L420 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)] === [2022-11-22 01:31:30,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:30,004 INFO L85 PathProgramCache]: Analyzing trace with hash -2013331814, now seen corresponding path program 1 times [2022-11-22 01:31:30,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:30,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638718164] [2022-11-22 01:31:30,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:30,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:31,276 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-11-22 01:31:31,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:31,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638718164] [2022-11-22 01:31:31,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638718164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:31:31,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:31:31,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:31:31,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162695626] [2022-11-22 01:31:31,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:31:31,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:31:31,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:31,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:31:31,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:31,280 INFO L87 Difference]: Start difference. First operand 14887 states and 21455 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) [2022-11-22 01:31:41,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:31:43,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:43,027 INFO L93 Difference]: Finished difference Result 29497 states and 42483 transitions. [2022-11-22 01:31:43,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:31:43,028 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 [2022-11-22 01:31:43,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:43,109 INFO L225 Difference]: With dead ends: 29497 [2022-11-22 01:31:43,109 INFO L226 Difference]: Without dead ends: 14831 [2022-11-22 01:31:43,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:43,174 INFO L413 NwaCegarLoop]: 3550 mSDtfsCounter, 3745 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3748 SdHoareTripleChecker+Valid, 3899 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:43,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3748 Valid, 3899 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 559 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2022-11-22 01:31:43,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14831 states. [2022-11-22 01:31:43,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14831 to 14831. [2022-11-22 01:31:43,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14831 states, 9395 states have (on average 1.336562001064396) internal successors, (12557), 9529 states have internal predecessors, (12557), 4385 states have call successors, (4385), 1048 states have call predecessors, (4385), 1048 states have return successors, (4399), 4337 states have call predecessors, (4399), 4381 states have call successors, (4399) [2022-11-22 01:31:43,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14831 states to 14831 states and 21341 transitions. [2022-11-22 01:31:43,981 INFO L78 Accepts]: Start accepts. Automaton has 14831 states and 21341 transitions. Word has length 1145 [2022-11-22 01:31:43,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:43,983 INFO L495 AbstractCegarLoop]: Abstraction has 14831 states and 21341 transitions. [2022-11-22 01:31:43,983 INFO L496 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) [2022-11-22 01:31:43,983 INFO L276 IsEmpty]: Start isEmpty. Operand 14831 states and 21341 transitions. [2022-11-22 01:31:44,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1147 [2022-11-22 01:31:44,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:44,003 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:31:44,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:31:44,003 INFO L420 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)] === [2022-11-22 01:31:44,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:44,004 INFO L85 PathProgramCache]: Analyzing trace with hash 385765261, now seen corresponding path program 1 times [2022-11-22 01:31:44,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:44,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134249260] [2022-11-22 01:31:44,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:44,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:45,178 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-11-22 01:31:45,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:45,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134249260] [2022-11-22 01:31:45,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134249260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:31:45,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:31:45,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:31:45,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333637435] [2022-11-22 01:31:45,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:31:45,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:31:45,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:45,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:31:45,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:45,183 INFO L87 Difference]: Start difference. First operand 14831 states and 21341 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) [2022-11-22 01:31:50,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:31:56,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:56,410 INFO L93 Difference]: Finished difference Result 28931 states and 41600 transitions. [2022-11-22 01:31:56,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:31:56,411 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 [2022-11-22 01:31:56,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:56,482 INFO L225 Difference]: With dead ends: 28931 [2022-11-22 01:31:56,482 INFO L226 Difference]: Without dead ends: 14339 [2022-11-22 01:31:56,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:56,531 INFO L413 NwaCegarLoop]: 3437 mSDtfsCounter, 3619 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3622 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:56,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3622 Valid, 3786 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 547 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-11-22 01:31:56,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14339 states. [2022-11-22 01:31:57,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14339 to 14339. [2022-11-22 01:31:57,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14339 states, 9113 states have (on average 1.3364424448589927) internal successors, (12179), 9229 states have internal predecessors, (12179), 4199 states have call successors, (4199), 1024 states have call predecessors, (4199), 1024 states have return successors, (4213), 4151 states have call predecessors, (4213), 4195 states have call successors, (4213) [2022-11-22 01:31:57,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14339 states to 14339 states and 20591 transitions. [2022-11-22 01:31:57,408 INFO L78 Accepts]: Start accepts. Automaton has 14339 states and 20591 transitions. Word has length 1146 [2022-11-22 01:31:57,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:57,410 INFO L495 AbstractCegarLoop]: Abstraction has 14339 states and 20591 transitions. [2022-11-22 01:31:57,410 INFO L496 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) [2022-11-22 01:31:57,410 INFO L276 IsEmpty]: Start isEmpty. Operand 14339 states and 20591 transitions. [2022-11-22 01:31:57,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1158 [2022-11-22 01:31:57,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:57,433 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:31:57,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:31:57,434 INFO L420 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)] === [2022-11-22 01:31:57,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:57,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1101303216, now seen corresponding path program 1 times [2022-11-22 01:31:57,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:57,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888984368] [2022-11-22 01:31:57,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:57,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:58,535 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-11-22 01:31:58,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:58,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888984368] [2022-11-22 01:31:58,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888984368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:31:58,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:31:58,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:31:58,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720614014] [2022-11-22 01:31:58,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:31:58,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:31:58,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:58,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:31:58,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:31:58,539 INFO L87 Difference]: Start difference. First operand 14339 states and 20591 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) [2022-11-22 01:32:05,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:32:08,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:32:16,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:32:19,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:32:19,719 INFO L93 Difference]: Finished difference Result 36987 states and 53134 transitions. [2022-11-22 01:32:19,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:32:19,720 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 [2022-11-22 01:32:19,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:32:19,846 INFO L225 Difference]: With dead ends: 36987 [2022-11-22 01:32:19,846 INFO L226 Difference]: Without dead ends: 22887 [2022-11-22 01:32:19,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:32:19,906 INFO L413 NwaCegarLoop]: 4347 mSDtfsCounter, 3500 mSDsluCounter, 3401 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3503 SdHoareTripleChecker+Valid, 7748 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:32:19,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3503 Valid, 7748 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1118 Invalid, 1 Unknown, 0 Unchecked, 20.2s Time] [2022-11-22 01:32:19,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22887 states. [2022-11-22 01:32:21,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22887 to 22856. [2022-11-22 01:32:21,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22856 states, 14557 states have (on average 1.3388060726798103) internal successors, (19489), 14754 states have internal predecessors, (19489), 6656 states have call successors, (6656), 1640 states have call predecessors, (6656), 1640 states have return successors, (6682), 6566 states have call predecessors, (6682), 6652 states have call successors, (6682) [2022-11-22 01:32:21,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22856 states to 22856 states and 32827 transitions. [2022-11-22 01:32:21,382 INFO L78 Accepts]: Start accepts. Automaton has 22856 states and 32827 transitions. Word has length 1157 [2022-11-22 01:32:21,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:32:21,384 INFO L495 AbstractCegarLoop]: Abstraction has 22856 states and 32827 transitions. [2022-11-22 01:32:21,384 INFO L496 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) [2022-11-22 01:32:21,384 INFO L276 IsEmpty]: Start isEmpty. Operand 22856 states and 32827 transitions. [2022-11-22 01:32:21,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1161 [2022-11-22 01:32:21,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:32:21,410 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:32:21,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:32:21,410 INFO L420 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)] === [2022-11-22 01:32:21,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:32:21,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1657710978, now seen corresponding path program 1 times [2022-11-22 01:32:21,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:32:21,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556588248] [2022-11-22 01:32:21,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:21,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:32:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:32:22,850 INFO L134 CoverageAnalysis]: Checked inductivity of 48408 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48402 trivial. 0 not checked. [2022-11-22 01:32:22,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:32:22,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556588248] [2022-11-22 01:32:22,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556588248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:32:22,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:32:22,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:32:22,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476572369] [2022-11-22 01:32:22,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:32:22,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:32:22,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:32:22,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:32:22,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:32:22,855 INFO L87 Difference]: Start difference. First operand 22856 states and 32827 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) [2022-11-22 01:32:32,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:32:45,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:32:45,693 INFO L93 Difference]: Finished difference Result 59988 states and 86148 transitions. [2022-11-22 01:32:45,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:32:45,694 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 [2022-11-22 01:32:45,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:32:45,856 INFO L225 Difference]: With dead ends: 59988 [2022-11-22 01:32:45,856 INFO L226 Difference]: Without dead ends: 37371 [2022-11-22 01:32:45,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:32:45,931 INFO L413 NwaCegarLoop]: 5234 mSDtfsCounter, 3547 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3550 SdHoareTripleChecker+Valid, 8631 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:32:45,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3550 Valid, 8631 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1336 Invalid, 1 Unknown, 0 Unchecked, 21.1s Time] [2022-11-22 01:32:45,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37371 states. [2022-11-22 01:32:47,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37371 to 37334. [2022-11-22 01:32:47,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37334 states, 23843 states have (on average 1.3398901144990143) internal successors, (31947), 24181 states have internal predecessors, (31947), 10768 states have call successors, (10768), 2728 states have call predecessors, (10768), 2720 states have return successors, (10815), 10595 states have call predecessors, (10815), 10764 states have call successors, (10815) [2022-11-22 01:32:48,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37334 states to 37334 states and 53530 transitions. [2022-11-22 01:32:48,040 INFO L78 Accepts]: Start accepts. Automaton has 37334 states and 53530 transitions. Word has length 1160 [2022-11-22 01:32:48,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:32:48,042 INFO L495 AbstractCegarLoop]: Abstraction has 37334 states and 53530 transitions. [2022-11-22 01:32:48,042 INFO L496 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) [2022-11-22 01:32:48,042 INFO L276 IsEmpty]: Start isEmpty. Operand 37334 states and 53530 transitions. [2022-11-22 01:32:48,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1182 [2022-11-22 01:32:48,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:32:48,064 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 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] [2022-11-22 01:32:48,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:32:48,064 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:32:48,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:32:48,065 INFO L85 PathProgramCache]: Analyzing trace with hash 781984231, now seen corresponding path program 1 times [2022-11-22 01:32:48,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:32:48,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202697434] [2022-11-22 01:32:48,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:48,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:32:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:32:51,114 INFO L134 CoverageAnalysis]: Checked inductivity of 48886 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48886 trivial. 0 not checked. [2022-11-22 01:32:51,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:32:51,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202697434] [2022-11-22 01:32:51,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202697434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:32:51,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:32:51,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:32:51,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180726900] [2022-11-22 01:32:51,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:32:51,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:32:51,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:32:51,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:32:51,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:32:51,117 INFO L87 Difference]: Start difference. First operand 37334 states and 53530 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) [2022-11-22 01:33:04,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:33:05,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:33:15,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:33:20,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:20,975 INFO L93 Difference]: Finished difference Result 37340 states and 53535 transitions. [2022-11-22 01:33:20,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:33:20,975 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 1181 [2022-11-22 01:33:20,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:21,143 INFO L225 Difference]: With dead ends: 37340 [2022-11-22 01:33:21,144 INFO L226 Difference]: Without dead ends: 37338 [2022-11-22 01:33:21,163 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:33:21,164 INFO L413 NwaCegarLoop]: 3420 mSDtfsCounter, 3695 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3706 SdHoareTripleChecker+Valid, 10254 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:21,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3706 Valid, 10254 Invalid, 1630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 28.3s Time] [2022-11-22 01:33:21,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37338 states. [2022-11-22 01:33:23,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37338 to 37338. [2022-11-22 01:33:23,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37338 states, 23846 states have (on average 1.3398473538538958) internal successors, (31950), 24184 states have internal predecessors, (31950), 10768 states have call successors, (10768), 2729 states have call predecessors, (10768), 2721 states have return successors, (10815), 10595 states have call predecessors, (10815), 10764 states have call successors, (10815) [2022-11-22 01:33:23,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37338 states to 37338 states and 53533 transitions. [2022-11-22 01:33:23,557 INFO L78 Accepts]: Start accepts. Automaton has 37338 states and 53533 transitions. Word has length 1181 [2022-11-22 01:33:23,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:23,558 INFO L495 AbstractCegarLoop]: Abstraction has 37338 states and 53533 transitions. [2022-11-22 01:33:23,559 INFO L496 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) [2022-11-22 01:33:23,559 INFO L276 IsEmpty]: Start isEmpty. Operand 37338 states and 53533 transitions. [2022-11-22 01:33:23,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1187 [2022-11-22 01:33:23,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:23,582 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1] [2022-11-22 01:33:23,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:33:23,582 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:33:23,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:23,583 INFO L85 PathProgramCache]: Analyzing trace with hash 712721006, now seen corresponding path program 1 times [2022-11-22 01:33:23,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:23,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162798016] [2022-11-22 01:33:23,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:23,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:26,312 INFO L134 CoverageAnalysis]: Checked inductivity of 48888 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48886 trivial. 0 not checked. [2022-11-22 01:33:26,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:26,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162798016] [2022-11-22 01:33:26,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162798016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:26,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:26,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:33:26,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317353144] [2022-11-22 01:33:26,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:26,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:33:26,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:26,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:33:26,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:33:26,316 INFO L87 Difference]: Start difference. First operand 37338 states and 53533 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) [2022-11-22 01:33:32,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:33:46,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:33:49,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:33:54,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:54,901 INFO L93 Difference]: Finished difference Result 37344 states and 53538 transitions. [2022-11-22 01:33:54,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:33:54,902 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 1186 [2022-11-22 01:33:54,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:55,060 INFO L225 Difference]: With dead ends: 37344 [2022-11-22 01:33:55,060 INFO L226 Difference]: Without dead ends: 37342 [2022-11-22 01:33:55,081 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:33:55,084 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 3690 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3700 SdHoareTripleChecker+Valid, 10257 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:55,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3700 Valid, 10257 Invalid, 1630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 27.0s Time] [2022-11-22 01:33:55,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37342 states. [2022-11-22 01:33:56,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37342 to 37342. [2022-11-22 01:33:56,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37342 states, 23849 states have (on average 1.3398046039666234) internal successors, (31953), 24187 states have internal predecessors, (31953), 10768 states have call successors, (10768), 2730 states have call predecessors, (10768), 2722 states have return successors, (10815), 10595 states have call predecessors, (10815), 10764 states have call successors, (10815) [2022-11-22 01:33:57,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37342 states to 37342 states and 53536 transitions. [2022-11-22 01:33:57,062 INFO L78 Accepts]: Start accepts. Automaton has 37342 states and 53536 transitions. Word has length 1186 [2022-11-22 01:33:57,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:57,063 INFO L495 AbstractCegarLoop]: Abstraction has 37342 states and 53536 transitions. [2022-11-22 01:33:57,063 INFO L496 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) [2022-11-22 01:33:57,063 INFO L276 IsEmpty]: Start isEmpty. Operand 37342 states and 53536 transitions. [2022-11-22 01:33:57,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1192 [2022-11-22 01:33:57,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:57,288 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:33:57,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:33:57,289 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:33:57,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:57,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1133213191, now seen corresponding path program 1 times [2022-11-22 01:33:57,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:57,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3467137] [2022-11-22 01:33:57,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:57,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 48894 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48890 trivial. 0 not checked. [2022-11-22 01:34:00,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:00,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3467137] [2022-11-22 01:34:00,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3467137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:00,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:00,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:34:00,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964991626] [2022-11-22 01:34:00,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:00,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:34:00,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:00,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:34:00,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:00,083 INFO L87 Difference]: Start difference. First operand 37342 states and 53536 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) [2022-11-22 01:34:10,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:34:12,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:34:24,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:34:29,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:29,583 INFO L93 Difference]: Finished difference Result 37896 states and 54158 transitions. [2022-11-22 01:34:29,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:34:29,584 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 1191 [2022-11-22 01:34:29,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:29,734 INFO L225 Difference]: With dead ends: 37896 [2022-11-22 01:34:29,735 INFO L226 Difference]: Without dead ends: 37894 [2022-11-22 01:34:29,760 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:34:29,761 INFO L413 NwaCegarLoop]: 3430 mSDtfsCounter, 3636 mSDsluCounter, 6938 mSDsCounter, 0 mSdLazyCounter, 1636 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3645 SdHoareTripleChecker+Valid, 10368 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1636 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:29,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3645 Valid, 10368 Invalid, 1639 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1636 Invalid, 1 Unknown, 0 Unchecked, 27.7s Time] [2022-11-22 01:34:29,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37894 states. [2022-11-22 01:34:32,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37894 to 37892. [2022-11-22 01:34:32,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37892 states, 24202 states have (on average 1.3377406825882159) internal successors, (32376), 24540 states have internal predecessors, (32376), 10866 states have call successors, (10866), 2829 states have call predecessors, (10866), 2821 states have return successors, (10913), 10693 states have call predecessors, (10913), 10862 states have call successors, (10913) [2022-11-22 01:34:32,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37892 states to 37892 states and 54155 transitions. [2022-11-22 01:34:32,216 INFO L78 Accepts]: Start accepts. Automaton has 37892 states and 54155 transitions. Word has length 1191 [2022-11-22 01:34:32,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:32,216 INFO L495 AbstractCegarLoop]: Abstraction has 37892 states and 54155 transitions. [2022-11-22 01:34:32,217 INFO L496 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) [2022-11-22 01:34:32,217 INFO L276 IsEmpty]: Start isEmpty. Operand 37892 states and 54155 transitions. [2022-11-22 01:34:32,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1198 [2022-11-22 01:34:32,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:32,241 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:32,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:34:32,241 INFO L420 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)] === [2022-11-22 01:34:32,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:32,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1435402013, now seen corresponding path program 1 times [2022-11-22 01:34:32,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:32,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054222628] [2022-11-22 01:34:32,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:32,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 48905 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48899 trivial. 0 not checked. [2022-11-22 01:34:34,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:34,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054222628] [2022-11-22 01:34:34,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054222628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:34,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:34,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:34:34,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977384453] [2022-11-22 01:34:34,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:34,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:34:34,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:34,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:34:34,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:34,652 INFO L87 Difference]: Start difference. First operand 37892 states and 54155 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) [2022-11-22 01:34:49,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:34:55,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:34:57,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:35:03,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:03,832 INFO L93 Difference]: Finished difference Result 37998 states and 54217 transitions. [2022-11-22 01:35:03,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:35:03,833 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 1197 [2022-11-22 01:35:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:03,939 INFO L225 Difference]: With dead ends: 37998 [2022-11-22 01:35:03,939 INFO L226 Difference]: Without dead ends: 37996 [2022-11-22 01:35:03,953 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:35:03,953 INFO L413 NwaCegarLoop]: 3428 mSDtfsCounter, 3665 mSDsluCounter, 6872 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3673 SdHoareTripleChecker+Valid, 10300 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:03,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3673 Valid, 10300 Invalid, 1643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1640 Invalid, 1 Unknown, 0 Unchecked, 27.2s Time] [2022-11-22 01:35:03,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37996 states. [2022-11-22 01:35:06,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37996 to 37994. [2022-11-22 01:35:06,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37994 states, 24261 states have (on average 1.3369193355591278) internal successors, (32435), 24599 states have internal predecessors, (32435), 10866 states have call successors, (10866), 2872 states have call predecessors, (10866), 2864 states have return successors, (10913), 10693 states have call predecessors, (10913), 10862 states have call successors, (10913) [2022-11-22 01:35:06,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37994 states to 37994 states and 54214 transitions. [2022-11-22 01:35:06,235 INFO L78 Accepts]: Start accepts. Automaton has 37994 states and 54214 transitions. Word has length 1197 [2022-11-22 01:35:06,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:06,236 INFO L495 AbstractCegarLoop]: Abstraction has 37994 states and 54214 transitions. [2022-11-22 01:35:06,236 INFO L496 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) [2022-11-22 01:35:06,236 INFO L276 IsEmpty]: Start isEmpty. Operand 37994 states and 54214 transitions. [2022-11-22 01:35:06,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1202 [2022-11-22 01:35:06,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:06,262 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:35:06,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:35:06,262 INFO L420 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)] === [2022-11-22 01:35:06,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:06,263 INFO L85 PathProgramCache]: Analyzing trace with hash 57266727, now seen corresponding path program 1 times [2022-11-22 01:35:06,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:06,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128557511] [2022-11-22 01:35:06,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:06,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:08,459 INFO L134 CoverageAnalysis]: Checked inductivity of 48918 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 48910 trivial. 0 not checked. [2022-11-22 01:35:08,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:08,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128557511] [2022-11-22 01:35:08,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128557511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:08,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:08,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:35:08,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135531880] [2022-11-22 01:35:08,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:08,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:35:08,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:08,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:35:08,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:08,463 INFO L87 Difference]: Start difference. First operand 37994 states and 54214 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) [2022-11-22 01:35:30,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:35:33,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:35:38,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:38,932 INFO L93 Difference]: Finished difference Result 38000 states and 54219 transitions. [2022-11-22 01:35:38,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:35:38,933 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 [2022-11-22 01:35:38,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:39,104 INFO L225 Difference]: With dead ends: 38000 [2022-11-22 01:35:39,105 INFO L226 Difference]: Without dead ends: 37998 [2022-11-22 01:35:39,116 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:35:39,116 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 3690 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3697 SdHoareTripleChecker+Valid, 10257 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:39,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3697 Valid, 10257 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 28.5s Time] [2022-11-22 01:35:39,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37998 states. [2022-11-22 01:35:41,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37998 to 37998. [2022-11-22 01:35:41,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37998 states, 24264 states have (on average 1.3368776788658094) internal successors, (32438), 24602 states have internal predecessors, (32438), 10866 states have call successors, (10866), 2873 states have call predecessors, (10866), 2865 states have return successors, (10913), 10693 states have call predecessors, (10913), 10862 states have call successors, (10913) [2022-11-22 01:35:41,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37998 states to 37998 states and 54217 transitions. [2022-11-22 01:35:41,470 INFO L78 Accepts]: Start accepts. Automaton has 37998 states and 54217 transitions. Word has length 1201 [2022-11-22 01:35:41,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:41,471 INFO L495 AbstractCegarLoop]: Abstraction has 37998 states and 54217 transitions. [2022-11-22 01:35:41,471 INFO L496 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) [2022-11-22 01:35:41,471 INFO L276 IsEmpty]: Start isEmpty. Operand 37998 states and 54217 transitions. [2022-11-22 01:35:41,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1208 [2022-11-22 01:35:41,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:41,494 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 6, 5, 5, 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] [2022-11-22 01:35:41,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 01:35:41,495 INFO L420 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)] === [2022-11-22 01:35:41,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:41,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2005783043, now seen corresponding path program 1 times [2022-11-22 01:35:41,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:41,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678458924] [2022-11-22 01:35:41,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:41,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:43,337 INFO L134 CoverageAnalysis]: Checked inductivity of 48937 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 48927 trivial. 0 not checked. [2022-11-22 01:35:43,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:43,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678458924] [2022-11-22 01:35:43,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678458924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:43,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:43,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:35:43,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182502204] [2022-11-22 01:35:43,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:43,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:35:43,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:43,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:35:43,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:43,340 INFO L87 Difference]: Start difference. First operand 37998 states and 54217 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) [2022-11-22 01:35:54,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:35:56,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:36:00,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:36:07,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:36:13,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:13,646 INFO L93 Difference]: Finished difference Result 38004 states and 54222 transitions. [2022-11-22 01:36:13,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:36:13,647 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 1207 [2022-11-22 01:36:13,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:13,740 INFO L225 Difference]: With dead ends: 38004 [2022-11-22 01:36:13,740 INFO L226 Difference]: Without dead ends: 38002 [2022-11-22 01:36:13,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:13,751 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 3690 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3696 SdHoareTripleChecker+Valid, 10257 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:13,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3696 Valid, 10257 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 28.1s Time] [2022-11-22 01:36:13,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38002 states. [2022-11-22 01:36:16,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38002 to 38002. [2022-11-22 01:36:16,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38002 states, 24267 states have (on average 1.3368360324720814) internal successors, (32441), 24605 states have internal predecessors, (32441), 10866 states have call successors, (10866), 2874 states have call predecessors, (10866), 2866 states have return successors, (10913), 10693 states have call predecessors, (10913), 10862 states have call successors, (10913) [2022-11-22 01:36:16,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38002 states to 38002 states and 54220 transitions. [2022-11-22 01:36:16,228 INFO L78 Accepts]: Start accepts. Automaton has 38002 states and 54220 transitions. Word has length 1207 [2022-11-22 01:36:16,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:16,229 INFO L495 AbstractCegarLoop]: Abstraction has 38002 states and 54220 transitions. [2022-11-22 01:36:16,229 INFO L496 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) [2022-11-22 01:36:16,230 INFO L276 IsEmpty]: Start isEmpty. Operand 38002 states and 54220 transitions. [2022-11-22 01:36:16,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1212 [2022-11-22 01:36:16,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:16,251 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 7, 6, 6, 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, 1, 1] [2022-11-22 01:36:16,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 01:36:16,251 INFO L420 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)] === [2022-11-22 01:36:16,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:16,252 INFO L85 PathProgramCache]: Analyzing trace with hash -183683513, now seen corresponding path program 1 times [2022-11-22 01:36:16,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:16,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879586758] [2022-11-22 01:36:16,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:16,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:17,922 INFO L134 CoverageAnalysis]: Checked inductivity of 48958 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 48946 trivial. 0 not checked. [2022-11-22 01:36:17,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:17,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879586758] [2022-11-22 01:36:17,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879586758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:17,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:17,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:36:17,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034540989] [2022-11-22 01:36:17,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:17,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:36:17,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:17,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:36:17,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:36:17,927 INFO L87 Difference]: Start difference. First operand 38002 states and 54220 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, (129), 3 states have call predecessors, (129), 1 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) [2022-11-22 01:36:28,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:36:34,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:36:36,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:36:38,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:36:39,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:36:42,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:36:48,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:48,775 INFO L93 Difference]: Finished difference Result 38008 states and 54225 transitions. [2022-11-22 01:36:48,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:36:48,776 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, (129), 3 states have call predecessors, (129), 1 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) Word has length 1211 [2022-11-22 01:36:48,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:48,884 INFO L225 Difference]: With dead ends: 38008 [2022-11-22 01:36:48,884 INFO L226 Difference]: Without dead ends: 38006 [2022-11-22 01:36:48,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:48,896 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 3690 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3695 SdHoareTripleChecker+Valid, 10257 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:48,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3695 Valid, 10257 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 28.1s Time] [2022-11-22 01:36:48,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38006 states. [2022-11-22 01:36:51,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38006 to 38006. [2022-11-22 01:36:51,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38006 states, 24270 states have (on average 1.3367943963741244) internal successors, (32444), 24608 states have internal predecessors, (32444), 10866 states have call successors, (10866), 2875 states have call predecessors, (10866), 2867 states have return successors, (10913), 10693 states have call predecessors, (10913), 10862 states have call successors, (10913) [2022-11-22 01:36:51,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38006 states to 38006 states and 54223 transitions. [2022-11-22 01:36:51,665 INFO L78 Accepts]: Start accepts. Automaton has 38006 states and 54223 transitions. Word has length 1211 [2022-11-22 01:36:51,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:51,666 INFO L495 AbstractCegarLoop]: Abstraction has 38006 states and 54223 transitions. [2022-11-22 01:36:51,667 INFO L496 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, (129), 3 states have call predecessors, (129), 1 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) [2022-11-22 01:36:51,667 INFO L276 IsEmpty]: Start isEmpty. Operand 38006 states and 54223 transitions. [2022-11-22 01:36:51,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1217 [2022-11-22 01:36:51,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:51,695 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 8, 7, 7, 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, 1, 1, 1, 1] [2022-11-22 01:36:51,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 01:36:51,696 INFO L420 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)] === [2022-11-22 01:36:51,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:51,697 INFO L85 PathProgramCache]: Analyzing trace with hash -2011793266, now seen corresponding path program 1 times [2022-11-22 01:36:51,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:51,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479384471] [2022-11-22 01:36:51,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:51,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:53,181 INFO L134 CoverageAnalysis]: Checked inductivity of 48984 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 48970 trivial. 0 not checked. [2022-11-22 01:36:53,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:53,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479384471] [2022-11-22 01:36:53,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479384471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:53,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:53,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:36:53,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954691920] [2022-11-22 01:36:53,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:53,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:36:53,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:53,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:36:53,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:36:53,185 INFO L87 Difference]: Start difference. First operand 38006 states and 54223 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) [2022-11-22 01:37:05,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:37:08,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:37:10,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:37:17,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:37:19,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:37:26,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:26,836 INFO L93 Difference]: Finished difference Result 38012 states and 54228 transitions. [2022-11-22 01:37:26,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:37:26,836 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, (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) Word has length 1216 [2022-11-22 01:37:26,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:26,951 INFO L225 Difference]: With dead ends: 38012 [2022-11-22 01:37:26,951 INFO L226 Difference]: Without dead ends: 38008 [2022-11-22 01:37:26,964 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:37:26,964 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 3690 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3694 SdHoareTripleChecker+Valid, 10257 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:26,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3694 Valid, 10257 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 30.5s Time] [2022-11-22 01:37:26,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38008 states. [2022-11-22 01:37:29,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38008 to 38008. [2022-11-22 01:37:29,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38008 states, 24272 states have (on average 1.3367254449571522) internal successors, (32445), 24609 states have internal predecessors, (32445), 10866 states have call successors, (10866), 2876 states have call predecessors, (10866), 2867 states have return successors, (10913), 10693 states have call predecessors, (10913), 10862 states have call successors, (10913) [2022-11-22 01:37:29,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38008 states to 38008 states and 54224 transitions. [2022-11-22 01:37:29,626 INFO L78 Accepts]: Start accepts. Automaton has 38008 states and 54224 transitions. Word has length 1216 [2022-11-22 01:37:29,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:29,627 INFO L495 AbstractCegarLoop]: Abstraction has 38008 states and 54224 transitions. [2022-11-22 01:37:29,627 INFO L496 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, (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) [2022-11-22 01:37:29,627 INFO L276 IsEmpty]: Start isEmpty. Operand 38008 states and 54224 transitions. [2022-11-22 01:37:29,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1234 [2022-11-22 01:37:29,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:29,650 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 9, 8, 8, 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, 1, 1, 1, 1] [2022-11-22 01:37:29,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 01:37:29,650 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:37:29,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:29,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1668695250, now seen corresponding path program 1 times [2022-11-22 01:37:29,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:29,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273344426] [2022-11-22 01:37:29,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:29,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:31,257 INFO L134 CoverageAnalysis]: Checked inductivity of 49022 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 49006 trivial. 0 not checked. [2022-11-22 01:37:31,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:31,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273344426] [2022-11-22 01:37:31,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273344426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:31,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:31,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:37:31,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508822207] [2022-11-22 01:37:31,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:31,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:37:31,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:31,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:37:31,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:37:31,262 INFO L87 Difference]: Start difference. First operand 38008 states and 54224 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, (129), 3 states have call predecessors, (129), 1 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) [2022-11-22 01:37:39,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:37:40,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:37:50,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:37:56,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:02,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:02,855 INFO L93 Difference]: Finished difference Result 38008 states and 54224 transitions. [2022-11-22 01:38:02,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:38:02,856 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, (129), 3 states have call predecessors, (129), 1 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) Word has length 1233 [2022-11-22 01:38:02,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:02,955 INFO L225 Difference]: With dead ends: 38008 [2022-11-22 01:38:02,955 INFO L226 Difference]: Without dead ends: 37832 [2022-11-22 01:38:02,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:38:02,967 INFO L413 NwaCegarLoop]: 3421 mSDtfsCounter, 3687 mSDsluCounter, 6833 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3690 SdHoareTripleChecker+Valid, 10254 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:02,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3690 Valid, 10254 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1623 Invalid, 1 Unknown, 0 Unchecked, 28.8s Time] [2022-11-22 01:38:02,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37832 states. [2022-11-22 01:38:05,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37832 to 37832. [2022-11-22 01:38:05,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37832 states, 24221 states have (on average 1.3354527063292185) internal successors, (32346), 24510 states have internal predecessors, (32346), 10758 states have call successors, (10758), 2850 states have call predecessors, (10758), 2851 states have return successors, (10809), 10642 states have call predecessors, (10809), 10758 states have call successors, (10809) [2022-11-22 01:38:05,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37832 states to 37832 states and 53913 transitions. [2022-11-22 01:38:05,893 INFO L78 Accepts]: Start accepts. Automaton has 37832 states and 53913 transitions. Word has length 1233 [2022-11-22 01:38:05,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:05,895 INFO L495 AbstractCegarLoop]: Abstraction has 37832 states and 53913 transitions. [2022-11-22 01:38:05,895 INFO L496 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, (129), 3 states have call predecessors, (129), 1 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) [2022-11-22 01:38:05,896 INFO L276 IsEmpty]: Start isEmpty. Operand 37832 states and 53913 transitions. [2022-11-22 01:38:05,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1223 [2022-11-22 01:38:05,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:05,929 INFO L195 NwaCegarLoop]: trace histogram [115, 110, 110, 110, 110, 110, 110, 5, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:38:05,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 01:38:05,929 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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)] === [2022-11-22 01:38:05,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:05,930 INFO L85 PathProgramCache]: Analyzing trace with hash 759720082, now seen corresponding path program 1 times [2022-11-22 01:38:05,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:05,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784019863] [2022-11-22 01:38:05,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:05,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 49122 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 49110 trivial. 0 not checked. [2022-11-22 01:38:06,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:06,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784019863] [2022-11-22 01:38:06,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784019863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:06,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:06,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:06,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31325205] [2022-11-22 01:38:06,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:06,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:06,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:06,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:06,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:06,881 INFO L87 Difference]: Start difference. First operand 37832 states and 53913 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (130), 2 states have call predecessors, (130), 1 states have return successors, (126), 3 states have call predecessors, (126), 3 states have call successors, (126) [2022-11-22 01:38:13,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:15,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:23,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:26,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:30,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:42,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:42,094 INFO L93 Difference]: Finished difference Result 91689 states and 130722 transitions. [2022-11-22 01:38:42,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:38:42,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (130), 2 states have call predecessors, (130), 1 states have return successors, (126), 3 states have call predecessors, (126), 3 states have call successors, (126) Word has length 1222 [2022-11-22 01:38:42,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:42,308 INFO L225 Difference]: With dead ends: 91689 [2022-11-22 01:38:42,308 INFO L226 Difference]: Without dead ends: 55372 [2022-11-22 01:38:42,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:42,406 INFO L413 NwaCegarLoop]: 5372 mSDtfsCounter, 3502 mSDsluCounter, 3356 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3505 SdHoareTripleChecker+Valid, 8728 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:42,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3505 Valid, 8728 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1443 Invalid, 1 Unknown, 0 Unchecked, 30.6s Time] [2022-11-22 01:38:42,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55372 states. [2022-11-22 01:38:47,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55372 to 55359. [2022-11-22 01:38:47,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55359 states, 35466 states have (on average 1.3356454068685502) internal successors, (47370), 35894 states have internal predecessors, (47370), 15698 states have call successors, (15698), 4192 states have call predecessors, (15698), 4193 states have return successors, (15773), 15524 states have call predecessors, (15773), 15698 states have call successors, (15773) [2022-11-22 01:38:47,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55359 states to 55359 states and 78841 transitions. [2022-11-22 01:38:47,323 INFO L78 Accepts]: Start accepts. Automaton has 55359 states and 78841 transitions. Word has length 1222 [2022-11-22 01:38:47,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:47,324 INFO L495 AbstractCegarLoop]: Abstraction has 55359 states and 78841 transitions. [2022-11-22 01:38:47,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (130), 2 states have call predecessors, (130), 1 states have return successors, (126), 3 states have call predecessors, (126), 3 states have call successors, (126) [2022-11-22 01:38:47,325 INFO L276 IsEmpty]: Start isEmpty. Operand 55359 states and 78841 transitions. [2022-11-22 01:38:47,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1229 [2022-11-22 01:38:47,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:47,364 INFO L195 NwaCegarLoop]: trace histogram [115, 110, 110, 110, 110, 110, 110, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:38:47,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 01:38:47,364 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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)] === [2022-11-22 01:38:47,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:47,365 INFO L85 PathProgramCache]: Analyzing trace with hash -605405724, now seen corresponding path program 1 times [2022-11-22 01:38:47,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:47,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721403011] [2022-11-22 01:38:47,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:47,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:48,439 INFO L134 CoverageAnalysis]: Checked inductivity of 49127 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 49120 trivial. 0 not checked. [2022-11-22 01:38:48,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:48,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721403011] [2022-11-22 01:38:48,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721403011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:48,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:48,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:48,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738676160] [2022-11-22 01:38:48,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:48,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:48,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:48,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:48,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:48,443 INFO L87 Difference]: Start difference. First operand 55359 states and 78841 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (128), 2 states have call predecessors, (128), 1 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2022-11-22 01:38:55,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:57,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:00,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:02,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:07,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:13,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:26,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:39:26,757 INFO L93 Difference]: Finished difference Result 134053 states and 190974 transitions. [2022-11-22 01:39:26,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:39:26,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (128), 2 states have call predecessors, (128), 1 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) Word has length 1228 [2022-11-22 01:39:26,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:39:27,187 INFO L225 Difference]: With dead ends: 134053 [2022-11-22 01:39:27,187 INFO L226 Difference]: Without dead ends: 80209 [2022-11-22 01:39:27,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:39:27,326 INFO L413 NwaCegarLoop]: 6352 mSDtfsCounter, 3477 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3480 SdHoareTripleChecker+Valid, 9707 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:39:27,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3480 Valid, 9707 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1612 Invalid, 1 Unknown, 0 Unchecked, 31.3s Time] [2022-11-22 01:39:27,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80209 states. [2022-11-22 01:39:33,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80209 to 80180. [2022-11-22 01:39:33,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80180 states, 51431 states have (on average 1.3359646905562792) internal successors, (68710), 52054 states have internal predecessors, (68710), 22654 states have call successors, (22654), 6092 states have call predecessors, (22654), 6093 states have return successors, (22765), 22390 states have call predecessors, (22765), 22654 states have call successors, (22765)