./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 5e519f3a 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_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI/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_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI --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-5e519f3 [2022-11-03 03:56:20,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:56:20,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:56:20,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:56:20,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:56:20,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:56:20,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:56:20,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:56:20,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:56:20,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:56:20,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:56:20,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:56:20,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:56:20,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:56:20,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:56:20,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:56:20,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:56:20,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:56:20,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:56:20,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:56:20,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:56:20,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:56:20,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:56:20,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:56:20,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:56:20,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:56:20,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:56:20,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:56:20,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:56:20,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:56:20,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:56:20,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:56:20,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:56:20,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:56:20,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:56:20,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:56:20,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:56:20,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:56:20,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:56:20,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:56:20,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:56:20,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:56:20,141 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:56:20,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:56:20,142 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:56:20,142 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:56:20,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:56:20,143 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:56:20,143 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:56:20,143 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:56:20,144 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:56:20,144 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:56:20,144 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:56:20,144 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:56:20,144 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:56:20,145 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:56:20,145 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:56:20,145 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:56:20,145 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:56:20,145 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:56:20,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:56:20,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:56:20,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:56:20,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:56:20,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:56:20,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:56:20,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:56:20,147 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:56:20,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:56:20,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:56:20,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:56:20,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:56:20,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:56:20,148 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:56:20,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:56:20,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:56:20,149 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:56:20,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:56:20,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:56:20,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:56:20,150 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_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ac7ef6163593244979442da2bd08044f9730d00931e1e4e35783fd5a897b362 [2022-11-03 03:56:20,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:56:20,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:56:20,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:56:20,420 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:56:20,421 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:56:20,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2022-11-03 03:56:20,537 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI/data/77ef52963/bf21d5e77778477bbcc196148334b2e9/FLAG88415c57d [2022-11-03 03:56:21,519 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:56:21,520 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2022-11-03 03:56:21,582 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI/data/77ef52963/bf21d5e77778477bbcc196148334b2e9/FLAG88415c57d [2022-11-03 03:56:21,871 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI/data/77ef52963/bf21d5e77778477bbcc196148334b2e9 [2022-11-03 03:56:21,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:56:21,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:56:21,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:56:21,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:56:21,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:56:21,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:21" (1/1) ... [2022-11-03 03:56:21,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4e59db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:21, skipping insertion in model container [2022-11-03 03:56:21,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:21" (1/1) ... [2022-11-03 03:56:21,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:56:22,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:56:27,449 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/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] [2022-11-03 03:56:27,452 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/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] [2022-11-03 03:56:27,453 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/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] [2022-11-03 03:56:27,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/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] [2022-11-03 03:56:27,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:56:27,545 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:56:28,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/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] [2022-11-03 03:56:28,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/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] [2022-11-03 03:56:28,160 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/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] [2022-11-03 03:56:28,160 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/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] [2022-11-03 03:56:28,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:56:28,642 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:56:28,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:28 WrapperNode [2022-11-03 03:56:28,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:56:28,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:56:28,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:56:28,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:56:28,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:28" (1/1) ... [2022-11-03 03:56:28,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:28" (1/1) ... [2022-11-03 03:56:29,199 INFO L138 Inliner]: procedures = 710, calls = 4743, calls flagged for inlining = 342, calls inlined = 329, statements flattened = 9439 [2022-11-03 03:56:29,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:56:29,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:56:29,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:56:29,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:56:29,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:28" (1/1) ... [2022-11-03 03:56:29,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:28" (1/1) ... [2022-11-03 03:56:29,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:28" (1/1) ... [2022-11-03 03:56:29,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:28" (1/1) ... [2022-11-03 03:56:29,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:28" (1/1) ... [2022-11-03 03:56:29,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:28" (1/1) ... [2022-11-03 03:56:29,777 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:28" (1/1) ... [2022-11-03 03:56:29,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:28" (1/1) ... [2022-11-03 03:56:29,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:56:29,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:56:29,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:56:29,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:56:29,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:28" (1/1) ... [2022-11-03 03:56:29,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:56:29,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:56:29,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:56:29,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7ac85-53e0-4d8d-9b6f-5ad282a89d16/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:56:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_destroy_entities [2022-11-03 03:56:29,981 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_destroy_entities [2022-11-03 03:56:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure lif_s_stream [2022-11-03 03:56:29,982 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_s_stream [2022-11-03 03:56:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure uds_enum_mbus_code [2022-11-03 03:56:29,982 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_enum_mbus_code [2022-11-03 03:56:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:56:29,982 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:56:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_vsp1_video [2022-11-03 03:56:29,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_vsp1_video [2022-11-03 03:56:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_prepare_buf [2022-11-03 03:56:29,983 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_prepare_buf [2022-11-03 03:56:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_dqbuf [2022-11-03 03:56:29,985 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_dqbuf [2022-11-03 03:56:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_get_format [2022-11-03 03:56:29,985 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_get_format [2022-11-03 03:56:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure sru_enum_frame_size [2022-11-03 03:56:29,986 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_enum_frame_size [2022-11-03 03:56:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:56:29,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:56:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure to_uds [2022-11-03 03:56:29,986 INFO L138 BoogieDeclarations]: Found implementation of procedure to_uds [2022-11-03 03:56:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_video [2022-11-03 03:56:29,987 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_video [2022-11-03 03:56:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_buffer_prepare [2022-11-03 03:56:29,988 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_buffer_prepare [2022-11-03 03:56:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_remote_pad [2022-11-03 03:56:29,988 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_remote_pad [2022-11-03 03:56:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 03:56:29,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 03:56:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-03 03:56:29,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-03 03:56:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_init_formats [2022-11-03 03:56:29,989 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_init_formats [2022-11-03 03:56:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_init [2022-11-03 03:56:29,990 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_init [2022-11-03 03:56:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure uds_try_format [2022-11-03 03:56:29,990 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_try_format [2022-11-03 03:56:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure uds_enum_frame_size [2022-11-03 03:56:29,991 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_enum_frame_size [2022-11-03 03:56:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 03:56:29,992 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 03:56:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure to_lut [2022-11-03 03:56:29,993 INFO L138 BoogieDeclarations]: Found implementation of procedure to_lut [2022-11-03 03:56:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure sru_enum_mbus_code [2022-11-03 03:56:29,993 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_enum_mbus_code [2022-11-03 03:56:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_51 [2022-11-03 03:56:29,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_51 [2022-11-03 03:56:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure lut_get_format [2022-11-03 03:56:29,995 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_get_format [2022-11-03 03:56:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure sru_get_format [2022-11-03 03:56:29,995 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_get_format [2022-11-03 03:56:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_53 [2022-11-03 03:56:29,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_53 [2022-11-03 03:56:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_read [2022-11-03 03:56:29,996 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_read [2022-11-03 03:56:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_irq_handler [2022-11-03 03:56:29,997 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_irq_handler [2022-11-03 03:56:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_enum_frame_size [2022-11-03 03:56:29,997 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_enum_frame_size [2022-11-03 03:56:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_frame_end [2022-11-03 03:56:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_frame_end [2022-11-03 03:56:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:56:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 03:56:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 03:56:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 03:56:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_dma_contig_cleanup_ctx [2022-11-03 03:56:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_dma_contig_cleanup_ctx [2022-11-03 03:56:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure wpf_s_stream [2022-11-03 03:56:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure wpf_s_stream [2022-11-03 03:56:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:56:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:56:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_selection [2022-11-03 03:56:30,001 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_selection [2022-11-03 03:56:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:56:30,002 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:56:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure uds_s_stream [2022-11-03 03:56:30,002 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_s_stream [2022-11-03 03:56:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-03 03:56:30,002 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-03 03:56:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_uds_write [2022-11-03 03:56:30,003 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_uds_write [2022-11-03 03:56:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:56:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_cleanup [2022-11-03 03:56:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_cleanup [2022-11-03 03:56:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 03:56:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 03:56:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2022-11-03 03:56:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2022-11-03 03:56:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure sru_s_stream [2022-11-03 03:56:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_s_stream [2022-11-03 03:56:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 03:56:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 03:56:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_format [2022-11-03 03:56:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_format [2022-11-03 03:56:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-03 03:56:30,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-03 03:56:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_reqbufs [2022-11-03 03:56:30,007 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_reqbufs [2022-11-03 03:56:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_is_locked [2022-11-03 03:56:30,008 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_is_locked [2022-11-03 03:56:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 03:56:30,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 03:56:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure to_rwpf [2022-11-03 03:56:30,010 INFO L138 BoogieDeclarations]: Found implementation of procedure to_rwpf [2022-11-03 03:56:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_get_format_info [2022-11-03 03:56:30,012 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_get_format_info [2022-11-03 03:56:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:56:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_enum_mbus_code [2022-11-03 03:56:30,014 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_enum_mbus_code [2022-11-03 03:56:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 03:56:30,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 03:56:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 03:56:30,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 03:56:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 03:56:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 03:56:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_ready [2022-11-03 03:56:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_ready [2022-11-03 03:56:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure sru_s_ctrl [2022-11-03 03:56:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_s_ctrl [2022-11-03 03:56:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_set_selection [2022-11-03 03:56:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_set_selection [2022-11-03 03:56:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_hsit_write [2022-11-03 03:56:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_hsit_write [2022-11-03 03:56:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_set_format [2022-11-03 03:56:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_set_format [2022-11-03 03:56:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 03:56:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 03:56:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:56:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 03:56:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 03:56:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 03:56:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 03:56:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-03 03:56:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-03 03:56:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2022-11-03 03:56:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2022-11-03 03:56:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-03 03:56:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-03 03:56:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_7 [2022-11-03 03:56:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_7 [2022-11-03 03:56:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure lif_enum_frame_size [2022-11-03 03:56:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_enum_frame_size [2022-11-03 03:56:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_6 [2022-11-03 03:56:30,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_6 [2022-11-03 03:56:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:56:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure sru_set_format [2022-11-03 03:56:30,026 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_set_format [2022-11-03 03:56:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 03:56:30,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 03:56:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:56:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure to_hsit [2022-11-03 03:56:30,027 INFO L138 BoogieDeclarations]: Found implementation of procedure to_hsit [2022-11-03 03:56:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_write [2022-11-03 03:56:30,027 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_write [2022-11-03 03:56:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:56:30,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:56:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_start_streaming [2022-11-03 03:56:30,028 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_start_streaming [2022-11-03 03:56:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:56:30,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:56:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata___1 [2022-11-03 03:56:30,028 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata___1 [2022-11-03 03:56:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_get_format [2022-11-03 03:56:30,029 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_get_format [2022-11-03 03:56:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_vsp1_pipeline [2022-11-03 03:56:30,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_vsp1_pipeline [2022-11-03 03:56:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_open [2022-11-03 03:56:30,029 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_open [2022-11-03 03:56:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_video_buffer [2022-11-03 03:56:30,030 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_video_buffer [2022-11-03 03:56:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_pipeline [2022-11-03 03:56:30,030 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_pipeline [2022-11-03 03:56:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure rpf_vdev_queue [2022-11-03 03:56:30,031 INFO L138 BoogieDeclarations]: Found implementation of procedure rpf_vdev_queue [2022-11-03 03:56:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_type [2022-11-03 03:56:30,031 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_type [2022-11-03 03:56:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-11-03 03:56:30,032 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-11-03 03:56:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 03:56:30,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 03:56:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 03:56:30,032 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 03:56:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-03 03:56:30,032 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-03 03:56:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure sru_try_format [2022-11-03 03:56:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_try_format [2022-11-03 03:56:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:56:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:56:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pm_suspend [2022-11-03 03:56:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pm_suspend [2022-11-03 03:56:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 03:56:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 03:56:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_clocks_enable [2022-11-03 03:56:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_clocks_enable [2022-11-03 03:56:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_try_format [2022-11-03 03:56:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_try_format [2022-11-03 03:56:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure to_sru [2022-11-03 03:56:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sru [2022-11-03 03:56:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure uds_output_size [2022-11-03 03:56:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_output_size [2022-11-03 03:56:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_finish [2022-11-03 03:56:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_finish [2022-11-03 03:56:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure lut_s_stream [2022-11-03 03:56:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_s_stream [2022-11-03 03:56:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_cleanup [2022-11-03 03:56:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_cleanup [2022-11-03 03:56:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:56:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:56:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_create_bufs [2022-11-03 03:56:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_create_bufs [2022-11-03 03:56:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 03:56:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 03:56:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure uds_passband_width [2022-11-03 03:56:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_passband_width [2022-11-03 03:56:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_clocks_disable [2022-11-03 03:56:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_clocks_disable [2022-11-03 03:56:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_lif_write [2022-11-03 03:56:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_lif_write [2022-11-03 03:56:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 03:56:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 03:56:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_get_pad_format [2022-11-03 03:56:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_get_pad_format [2022-11-03 03:56:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_init [2022-11-03 03:56:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_init [2022-11-03 03:56:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 03:56:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 03:56:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:56:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:56:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_sru_write [2022-11-03 03:56:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_sru_write [2022-11-03 03:56:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_set_format [2022-11-03 03:56:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_set_format [2022-11-03 03:56:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rpf_write [2022-11-03 03:56:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rpf_write [2022-11-03 03:56:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure __vsp1_video_try_format [2022-11-03 03:56:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __vsp1_video_try_format [2022-11-03 03:56:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-03 03:56:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-03 03:56:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_create_link [2022-11-03 03:56:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_create_link [2022-11-03 03:56:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-03 03:56:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-03 03:56:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_release [2022-11-03 03:56:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_release [2022-11-03 03:56:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2022-11-03 03:56:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2022-11-03 03:56:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-03 03:56:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-03 03:56:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_remove [2022-11-03 03:56:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_remove [2022-11-03 03:56:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pm_resume [2022-11-03 03:56:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pm_resume [2022-11-03 03:56:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:56:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 03:56:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 03:56:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure uds_output_limits [2022-11-03 03:56:30,042 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_output_limits [2022-11-03 03:56:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:56:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_run [2022-11-03 03:56:30,042 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_run [2022-11-03 03:56:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure uds_compute_ratio [2022-11-03 03:56:30,042 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_compute_ratio [2022-11-03 03:56:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_stop_streaming [2022-11-03 03:56:30,042 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_stop_streaming [2022-11-03 03:56:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:56:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure uds_set_format [2022-11-03 03:56:30,043 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_set_format [2022-11-03 03:56:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_probe [2022-11-03 03:56:30,043 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_probe [2022-11-03 03:56:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-03 03:56:30,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-03 03:56:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_hsit_create [2022-11-03 03:56:30,043 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_hsit_create [2022-11-03 03:56:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 03:56:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 03:56:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 03:56:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 03:56:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2022-11-03 03:56:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2022-11-03 03:56:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 03:56:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 03:56:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2022-11-03 03:56:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2022-11-03 03:56:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_querybuf [2022-11-03 03:56:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_querybuf [2022-11-03 03:56:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 03:56:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 03:56:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_entity [2022-11-03 03:56:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_entity [2022-11-03 03:56:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure to_lif [2022-11-03 03:56:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure to_lif [2022-11-03 03:56:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_set_format [2022-11-03 03:56:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_set_format [2022-11-03 03:56:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___3 [2022-11-03 03:56:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___3 [2022-11-03 03:56:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_link_validate [2022-11-03 03:56:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_link_validate [2022-11-03 03:56:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___2 [2022-11-03 03:56:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___2 [2022-11-03 03:56:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_prepare [2022-11-03 03:56:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_prepare [2022-11-03 03:56:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2022-11-03 03:56:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_enum_mbus_code [2022-11-03 03:56:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_enum_mbus_code [2022-11-03 03:56:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 03:56:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 03:56:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___5 [2022-11-03 03:56:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___5 [2022-11-03 03:56:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___4 [2022-11-03 03:56:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___4 [2022-11-03 03:56:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure lif_set_format [2022-11-03 03:56:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_set_format [2022-11-03 03:56:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure lut_enum_mbus_code [2022-11-03 03:56:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_enum_mbus_code [2022-11-03 03:56:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure lif_get_format [2022-11-03 03:56:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_get_format [2022-11-03 03:56:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_crop [2022-11-03 03:56:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_crop [2022-11-03 03:56:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:56:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure clk_prepare_enable [2022-11-03 03:56:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_prepare_enable [2022-11-03 03:56:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:56:30,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:56:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_querycap [2022-11-03 03:56:30,050 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_querycap [2022-11-03 03:56:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2022-11-03 03:56:30,050 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2022-11-03 03:56:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_buffer_queue [2022-11-03 03:56:30,050 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_buffer_queue [2022-11-03 03:56:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_init [2022-11-03 03:56:30,051 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_init [2022-11-03 03:56:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure rpf_s_stream [2022-11-03 03:56:30,051 INFO L138 BoogieDeclarations]: Found implementation of procedure rpf_s_stream [2022-11-03 03:56:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vsp1_platform_driver_exit_28_2 [2022-11-03 03:56:30,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vsp1_platform_driver_exit_28_2 [2022-11-03 03:56:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_pipeline_stop [2022-11-03 03:56:30,051 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_pipeline_stop [2022-11-03 03:56:30,052 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_set_subdevdata [2022-11-03 03:56:30,052 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_set_subdevdata [2022-11-03 03:56:30,052 INFO L130 BoogieDeclarations]: Found specification of procedure lut_set_format [2022-11-03 03:56:30,052 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_set_format [2022-11-03 03:56:30,052 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_enum_frame_size [2022-11-03 03:56:30,052 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_enum_frame_size [2022-11-03 03:56:30,052 INFO L130 BoogieDeclarations]: Found specification of procedure lut_enum_frame_size [2022-11-03 03:56:30,052 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_enum_frame_size [2022-11-03 03:56:30,053 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2022-11-03 03:56:30,053 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2022-11-03 03:56:30,053 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_s_stream [2022-11-03 03:56:30,053 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_s_stream [2022-11-03 03:56:30,053 INFO L130 BoogieDeclarations]: Found specification of procedure wpf_vdev_queue [2022-11-03 03:56:30,053 INFO L138 BoogieDeclarations]: Found implementation of procedure wpf_vdev_queue [2022-11-03 03:56:30,053 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-03 03:56:30,053 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-03 03:56:30,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 03:56:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 03:56:30,054 INFO L130 BoogieDeclarations]: Found specification of procedure uds_get_format [2022-11-03 03:56:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_get_format [2022-11-03 03:56:30,054 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 03:56:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 03:56:30,054 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2022-11-03 03:56:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2022-11-03 03:56:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_qbuf [2022-11-03 03:56:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_qbuf [2022-11-03 03:56:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure lif_enum_mbus_code [2022-11-03 03:56:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_enum_mbus_code [2022-11-03 03:56:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:56:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 03:56:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 03:56:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 03:56:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 03:56:31,667 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:56:31,671 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:56:38,316 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:58:03,475 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 03:58:03,691 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:58:06,229 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:58:06,229 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:58:06,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:58:06 BoogieIcfgContainer [2022-11-03 03:58:06,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:58:06,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:58:06,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:58:06,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:58:06,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:56:21" (1/3) ... [2022-11-03 03:58:06,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4166934f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:58:06, skipping insertion in model container [2022-11-03 03:58:06,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:28" (2/3) ... [2022-11-03 03:58:06,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4166934f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:58:06, skipping insertion in model container [2022-11-03 03:58:06,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:58:06" (3/3) ... [2022-11-03 03:58:06,246 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2022-11-03 03:58:06,266 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:58:06,266 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 03:58:06,372 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:58:06,378 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;@2637994e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:58:06,378 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 03:58:06,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 2840 states, 1759 states have (on average 1.3342808413871519) internal successors, (2347), 1782 states have internal predecessors, (2347), 900 states have call successors, (900), 179 states have call predecessors, (900), 178 states have return successors, (887), 883 states have call predecessors, (887), 887 states have call successors, (887) [2022-11-03 03:58:06,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1125 [2022-11-03 03:58:06,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:58:06,466 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] [2022-11-03 03:58:06,467 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)] === [2022-11-03 03:58:06,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:58:06,472 INFO L85 PathProgramCache]: Analyzing trace with hash 416839345, now seen corresponding path program 1 times [2022-11-03 03:58:06,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:58:06,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250985151] [2022-11-03 03:58:06,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:58:06,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:58:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:58:09,055 INFO L134 CoverageAnalysis]: Checked inductivity of 48183 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48183 trivial. 0 not checked. [2022-11-03 03:58:09,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:58:09,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250985151] [2022-11-03 03:58:09,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250985151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:58:09,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:58:09,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:58:09,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430105635] [2022-11-03 03:58:09,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:58:09,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:58:09,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:58:09,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:58:09,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:58:09,117 INFO L87 Difference]: Start difference. First operand has 2840 states, 1759 states have (on average 1.3342808413871519) internal successors, (2347), 1782 states have internal predecessors, (2347), 900 states have call successors, (900), 179 states have call predecessors, (900), 178 states have return successors, (887), 883 states have call predecessors, (887), 887 states have call successors, (887) Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) [2022-11-03 03:58:16,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:18,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:20,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:22,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:24,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:58:26,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:27,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:31,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:33,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:35,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 03:58:39,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:46,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:58:46,785 INFO L93 Difference]: Finished difference Result 7946 states and 11692 transitions. [2022-11-03 03:58:46,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:58:46,787 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 [2022-11-03 03:58:46,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:58:46,864 INFO L225 Difference]: With dead ends: 7946 [2022-11-03 03:58:46,864 INFO L226 Difference]: Without dead ends: 5309 [2022-11-03 03:58:46,892 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 [2022-11-03 03:58:46,901 INFO L413 NwaCegarLoop]: 4273 mSDtfsCounter, 3632 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 22 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3644 SdHoareTripleChecker+Valid, 7764 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:58:46,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3644 Valid, 7764 Invalid, 1210 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 1181 Invalid, 7 Unknown, 0 Unchecked, 37.2s Time] [2022-11-03 03:58:46,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5309 states. [2022-11-03 03:58:47,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5309 to 5303. [2022-11-03 03:58:47,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 3335 states have (on average 1.337031484257871) internal successors, (4459), 3379 states have internal predecessors, (4459), 1614 states have call successors, (1614), 352 states have call predecessors, (1614), 351 states have return successors, (1620), 1601 states have call predecessors, (1620), 1610 states have call successors, (1620) [2022-11-03 03:58:47,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 7693 transitions. [2022-11-03 03:58:47,379 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 7693 transitions. Word has length 1124 [2022-11-03 03:58:47,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:58:47,388 INFO L495 AbstractCegarLoop]: Abstraction has 5303 states and 7693 transitions. [2022-11-03 03:58:47,388 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) [2022-11-03 03:58:47,388 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 7693 transitions. [2022-11-03 03:58:47,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2022-11-03 03:58:47,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:58:47,455 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] [2022-11-03 03:58:47,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:58:47,456 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)] === [2022-11-03 03:58:47,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:58:47,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1082322997, now seen corresponding path program 1 times [2022-11-03 03:58:47,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:58:47,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843849781] [2022-11-03 03:58:47,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:58:47,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:58:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:58:49,367 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-11-03 03:58:49,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:58:49,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843849781] [2022-11-03 03:58:49,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843849781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:58:49,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:58:49,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:58:49,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136613054] [2022-11-03 03:58:49,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:58:49,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:58:49,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:58:49,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:58:49,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:58:49,374 INFO L87 Difference]: Start difference. First operand 5303 states and 7693 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) [2022-11-03 03:58:57,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:59,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:01,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:04,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:05,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:08,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:10,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:13,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:59:15,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 03:59:18,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:59:21,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:23,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:25,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:27,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:29,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:29,314 INFO L93 Difference]: Finished difference Result 12862 states and 18628 transitions. [2022-11-03 03:59:29,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:59:29,315 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 [2022-11-03 03:59:29,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:29,377 INFO L225 Difference]: With dead ends: 12862 [2022-11-03 03:59:29,377 INFO L226 Difference]: Without dead ends: 7780 [2022-11-03 03:59:29,405 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 [2022-11-03 03:59:29,406 INFO L413 NwaCegarLoop]: 4265 mSDtfsCounter, 3598 mSDsluCounter, 4034 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 12 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3609 SdHoareTripleChecker+Valid, 7762 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:29,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3609 Valid, 7762 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1153 Invalid, 8 Unknown, 0 Unchecked, 39.5s Time] [2022-11-03 03:59:29,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7780 states. [2022-11-03 03:59:29,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7780 to 7749. [2022-11-03 03:59:30,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7749 states, 4888 states have (on average 1.3377659574468086) internal successors, (6539), 4958 states have internal predecessors, (6539), 2328 states have call successors, (2328), 531 states have call predecessors, (2328), 530 states have return successors, (2343), 2304 states have call predecessors, (2343), 2324 states have call successors, (2343) [2022-11-03 03:59:30,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7749 states to 7749 states and 11210 transitions. [2022-11-03 03:59:30,066 INFO L78 Accepts]: Start accepts. Automaton has 7749 states and 11210 transitions. Word has length 1141 [2022-11-03 03:59:30,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:30,068 INFO L495 AbstractCegarLoop]: Abstraction has 7749 states and 11210 transitions. [2022-11-03 03:59:30,078 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) [2022-11-03 03:59:30,079 INFO L276 IsEmpty]: Start isEmpty. Operand 7749 states and 11210 transitions. [2022-11-03 03:59:30,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2022-11-03 03:59:30,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:30,114 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] [2022-11-03 03:59:30,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:59:30,114 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)] === [2022-11-03 03:59:30,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:30,115 INFO L85 PathProgramCache]: Analyzing trace with hash 387300646, now seen corresponding path program 1 times [2022-11-03 03:59:30,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:30,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505850167] [2022-11-03 03:59:30,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:30,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:31,627 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-11-03 03:59:31,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:31,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505850167] [2022-11-03 03:59:31,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505850167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:31,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:31,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:59:31,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725738372] [2022-11-03 03:59:31,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:31,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:59:31,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:31,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:59:31,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:59:31,633 INFO L87 Difference]: Start difference. First operand 7749 states and 11210 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) [2022-11-03 03:59:34,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:40,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 03:59:43,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:45,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:47,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:49,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:52,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:59:53,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:57,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:59,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:02,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:04,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:07,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:12,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:12,053 INFO L93 Difference]: Finished difference Result 22309 states and 32253 transitions. [2022-11-03 04:00:12,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:00:12,054 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 [2022-11-03 04:00:12,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:12,181 INFO L225 Difference]: With dead ends: 22309 [2022-11-03 04:00:12,181 INFO L226 Difference]: Without dead ends: 14781 [2022-11-03 04:00:12,233 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 [2022-11-03 04:00:12,234 INFO L413 NwaCegarLoop]: 4756 mSDtfsCounter, 3530 mSDsluCounter, 3995 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 29 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3542 SdHoareTripleChecker+Valid, 8226 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:12,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3542 Valid, 8226 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1267 Invalid, 7 Unknown, 0 Unchecked, 39.7s Time] [2022-11-03 04:00:12,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14781 states. [2022-11-03 04:00:13,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14781 to 14749. [2022-11-03 04:00:13,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14749 states, 9323 states have (on average 1.3345489649254532) internal successors, (12442), 9458 states have internal predecessors, (12442), 4382 states have call successors, (4382), 1042 states have call predecessors, (4382), 1041 states have return successors, (4429), 4332 states have call predecessors, (4429), 4378 states have call successors, (4429) [2022-11-03 04:00:13,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14749 states to 14749 states and 21253 transitions. [2022-11-03 04:00:13,253 INFO L78 Accepts]: Start accepts. Automaton has 14749 states and 21253 transitions. Word has length 1141 [2022-11-03 04:00:13,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:13,254 INFO L495 AbstractCegarLoop]: Abstraction has 14749 states and 21253 transitions. [2022-11-03 04:00:13,255 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) [2022-11-03 04:00:13,256 INFO L276 IsEmpty]: Start isEmpty. Operand 14749 states and 21253 transitions. [2022-11-03 04:00:13,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1147 [2022-11-03 04:00:13,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:13,276 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] [2022-11-03 04:00:13,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:00:13,276 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)] === [2022-11-03 04:00:13,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:13,278 INFO L85 PathProgramCache]: Analyzing trace with hash 656079, now seen corresponding path program 1 times [2022-11-03 04:00:13,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:13,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387271107] [2022-11-03 04:00:13,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:13,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:14,758 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-11-03 04:00:14,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:14,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387271107] [2022-11-03 04:00:14,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387271107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:14,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:14,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:00:14,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163921173] [2022-11-03 04:00:14,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:14,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:00:14,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:14,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:00:14,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:14,762 INFO L87 Difference]: Start difference. First operand 14749 states and 21253 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) [2022-11-03 04:00:21,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:23,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:25,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:29,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:00:31,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:35,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:38,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:39,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:39,754 INFO L93 Difference]: Finished difference Result 29259 states and 42125 transitions. [2022-11-03 04:00:39,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:00:39,755 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 [2022-11-03 04:00:39,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:39,844 INFO L225 Difference]: With dead ends: 29259 [2022-11-03 04:00:39,844 INFO L226 Difference]: Without dead ends: 14731 [2022-11-03 04:00:39,906 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 [2022-11-03 04:00:39,907 INFO L413 NwaCegarLoop]: 3522 mSDtfsCounter, 3704 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3714 SdHoareTripleChecker+Valid, 3905 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:39,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3714 Valid, 3905 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 580 Invalid, 6 Unknown, 0 Unchecked, 24.4s Time] [2022-11-03 04:00:39,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14731 states. [2022-11-03 04:00:40,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14731 to 14731. [2022-11-03 04:00:40,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14731 states, 9321 states have (on average 1.3332260487072203) internal successors, (12427), 9463 states have internal predecessors, (12427), 4349 states have call successors, (4349), 1052 states have call predecessors, (4349), 1058 states have return successors, (4409), 4299 states have call predecessors, (4409), 4345 states have call successors, (4409) [2022-11-03 04:00:40,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14731 states to 14731 states and 21185 transitions. [2022-11-03 04:00:40,797 INFO L78 Accepts]: Start accepts. Automaton has 14731 states and 21185 transitions. Word has length 1146 [2022-11-03 04:00:40,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:40,798 INFO L495 AbstractCegarLoop]: Abstraction has 14731 states and 21185 transitions. [2022-11-03 04:00:40,799 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) [2022-11-03 04:00:40,799 INFO L276 IsEmpty]: Start isEmpty. Operand 14731 states and 21185 transitions. [2022-11-03 04:00:40,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1146 [2022-11-03 04:00:40,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:40,819 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] [2022-11-03 04:00:40,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:00:40,820 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)] === [2022-11-03 04:00:40,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:40,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1002250641, now seen corresponding path program 1 times [2022-11-03 04:00:40,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:40,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719111702] [2022-11-03 04:00:40,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:40,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:42,111 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-11-03 04:00:42,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:42,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719111702] [2022-11-03 04:00:42,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719111702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:42,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:42,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:00:42,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102988404] [2022-11-03 04:00:42,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:42,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:00:42,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:42,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:00:42,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:42,114 INFO L87 Difference]: Start difference. First operand 14731 states and 21185 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) [2022-11-03 04:00:47,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 04:00:51,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:53,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:55,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:58,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:00,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:04,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:06,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:06,085 INFO L93 Difference]: Finished difference Result 28731 states and 41288 transitions. [2022-11-03 04:01:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:01:06,086 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 [2022-11-03 04:01:06,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:06,160 INFO L225 Difference]: With dead ends: 28731 [2022-11-03 04:01:06,161 INFO L226 Difference]: Without dead ends: 14239 [2022-11-03 04:01:06,209 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 [2022-11-03 04:01:06,211 INFO L413 NwaCegarLoop]: 3409 mSDtfsCounter, 3579 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3588 SdHoareTripleChecker+Valid, 3792 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:06,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3588 Valid, 3792 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 566 Invalid, 6 Unknown, 0 Unchecked, 23.3s Time] [2022-11-03 04:01:06,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14239 states. [2022-11-03 04:01:07,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14239 to 14239. [2022-11-03 04:01:07,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14239 states, 9039 states have (on average 1.3330014382121915) internal successors, (12049), 9163 states have internal predecessors, (12049), 4163 states have call successors, (4163), 1028 states have call predecessors, (4163), 1034 states have return successors, (4223), 4113 states have call predecessors, (4223), 4159 states have call successors, (4223) [2022-11-03 04:01:07,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14239 states to 14239 states and 20435 transitions. [2022-11-03 04:01:07,167 INFO L78 Accepts]: Start accepts. Automaton has 14239 states and 20435 transitions. Word has length 1145 [2022-11-03 04:01:07,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:07,168 INFO L495 AbstractCegarLoop]: Abstraction has 14239 states and 20435 transitions. [2022-11-03 04:01:07,169 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) [2022-11-03 04:01:07,169 INFO L276 IsEmpty]: Start isEmpty. Operand 14239 states and 20435 transitions. [2022-11-03 04:01:07,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1158 [2022-11-03 04:01:07,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:07,192 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] [2022-11-03 04:01:07,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:01:07,193 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)] === [2022-11-03 04:01:07,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:07,194 INFO L85 PathProgramCache]: Analyzing trace with hash 2133925853, now seen corresponding path program 1 times [2022-11-03 04:01:07,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:01:07,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588394220] [2022-11-03 04:01:07,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:07,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:01:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:08,393 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-11-03 04:01:08,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:01:08,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588394220] [2022-11-03 04:01:08,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588394220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:08,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:08,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:01:08,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379667469] [2022-11-03 04:01:08,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:08,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:01:08,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:01:08,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:01:08,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:01:08,397 INFO L87 Difference]: Start difference. First operand 14239 states and 20435 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) [2022-11-03 04:01:13,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 04:01:15,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:17,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:19,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:21,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:24,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:26,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:29,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:31,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:38,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:40,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:01:43,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:45,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:01:47,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:01:49,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 04:01:52,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:01:53,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:01:53,522 INFO L93 Difference]: Finished difference Result 36674 states and 52667 transitions. [2022-11-03 04:01:53,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:01:53,523 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 [2022-11-03 04:01:53,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:01:53,765 INFO L225 Difference]: With dead ends: 36674 [2022-11-03 04:01:53,765 INFO L226 Difference]: Without dead ends: 22674 [2022-11-03 04:01:53,810 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 [2022-11-03 04:01:53,812 INFO L413 NwaCegarLoop]: 4290 mSDtfsCounter, 3448 mSDsluCounter, 3898 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 7 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3460 SdHoareTripleChecker+Valid, 7658 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:01:53,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3460 Valid, 7658 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1124 Invalid, 10 Unknown, 0 Unchecked, 44.2s Time] [2022-11-03 04:01:53,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22674 states. [2022-11-03 04:01:55,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22674 to 22637. [2022-11-03 04:01:55,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22637 states, 14406 states have (on average 1.3358322921005137) internal successors, (19244), 14614 states have internal predecessors, (19244), 6584 states have call successors, (6584), 1636 states have call predecessors, (6584), 1644 states have return successors, (6682), 6491 states have call predecessors, (6682), 6580 states have call successors, (6682) [2022-11-03 04:01:55,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22637 states to 22637 states and 32510 transitions. [2022-11-03 04:01:55,272 INFO L78 Accepts]: Start accepts. Automaton has 22637 states and 32510 transitions. Word has length 1157 [2022-11-03 04:01:55,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:01:55,273 INFO L495 AbstractCegarLoop]: Abstraction has 22637 states and 32510 transitions. [2022-11-03 04:01:55,274 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) [2022-11-03 04:01:55,274 INFO L276 IsEmpty]: Start isEmpty. Operand 22637 states and 32510 transitions. [2022-11-03 04:01:55,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1161 [2022-11-03 04:01:55,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:01:55,297 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] [2022-11-03 04:01:55,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 04:01:55,298 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)] === [2022-11-03 04:01:55,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:01:55,299 INFO L85 PathProgramCache]: Analyzing trace with hash 2042920991, now seen corresponding path program 1 times [2022-11-03 04:01:55,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:01:55,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821218698] [2022-11-03 04:01:55,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:01:55,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:01:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:01:56,535 INFO L134 CoverageAnalysis]: Checked inductivity of 48408 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48402 trivial. 0 not checked. [2022-11-03 04:01:56,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:01:56,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821218698] [2022-11-03 04:01:56,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821218698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:01:56,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:01:56,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:01:56,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077163213] [2022-11-03 04:01:56,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:01:56,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:01:56,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:01:56,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:01:56,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:01:56,539 INFO L87 Difference]: Start difference. First operand 22637 states and 32510 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) [2022-11-03 04:01:58,997 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 [] [2022-11-03 04:02:02,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:04,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:06,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:08,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:10,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:12,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:15,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:17,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:19,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:24,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:27,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:28,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:29,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:32,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:02:35,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:35,214 INFO L93 Difference]: Finished difference Result 59352 states and 85267 transitions. [2022-11-03 04:02:35,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:02:35,218 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 [2022-11-03 04:02:35,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:35,382 INFO L225 Difference]: With dead ends: 59352 [2022-11-03 04:02:35,382 INFO L226 Difference]: Without dead ends: 36954 [2022-11-03 04:02:35,455 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 [2022-11-03 04:02:35,456 INFO L413 NwaCegarLoop]: 5168 mSDtfsCounter, 3501 mSDsluCounter, 3896 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 12 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3509 SdHoareTripleChecker+Valid, 8532 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:35,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3509 Valid, 8532 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1357 Invalid, 6 Unknown, 0 Unchecked, 36.8s Time] [2022-11-03 04:02:35,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36954 states. [2022-11-03 04:02:37,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36954 to 36917. [2022-11-03 04:02:37,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36917 states, 23578 states have (on average 1.3380693867164306) internal successors, (31549), 23934 states have internal predecessors, (31549), 10621 states have call successors, (10621), 2711 states have call predecessors, (10621), 2715 states have return successors, (10796), 10442 states have call predecessors, (10796), 10617 states have call successors, (10796) [2022-11-03 04:02:37,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36917 states to 36917 states and 52966 transitions. [2022-11-03 04:02:37,604 INFO L78 Accepts]: Start accepts. Automaton has 36917 states and 52966 transitions. Word has length 1160 [2022-11-03 04:02:37,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:37,606 INFO L495 AbstractCegarLoop]: Abstraction has 36917 states and 52966 transitions. [2022-11-03 04:02:37,606 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) [2022-11-03 04:02:37,606 INFO L276 IsEmpty]: Start isEmpty. Operand 36917 states and 52966 transitions. [2022-11-03 04:02:37,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1183 [2022-11-03 04:02:37,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:37,628 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] [2022-11-03 04:02:37,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 04:02:37,629 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)] === [2022-11-03 04:02:37,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:37,629 INFO L85 PathProgramCache]: Analyzing trace with hash -630310506, now seen corresponding path program 1 times [2022-11-03 04:02:37,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:37,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551756685] [2022-11-03 04:02:37,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:37,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:40,420 INFO L134 CoverageAnalysis]: Checked inductivity of 48887 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48887 trivial. 0 not checked. [2022-11-03 04:02:40,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:40,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551756685] [2022-11-03 04:02:40,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551756685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:40,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:40,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:02:40,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579420509] [2022-11-03 04:02:40,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:40,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:02:40,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:40,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:02:40,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:02:40,424 INFO L87 Difference]: Start difference. First operand 36917 states and 52966 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) [2022-11-03 04:02:44,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:46,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:52,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:02:53,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:56,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:58,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:00,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:05,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:03:08,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:09,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:11,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:12,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:14,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:15,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:17,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:20,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:22,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:29,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:29,169 INFO L93 Difference]: Finished difference Result 36923 states and 52971 transitions. [2022-11-03 04:03:29,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:03:29,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (123), 3 states have call predecessors, (123), 1 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) Word has length 1182 [2022-11-03 04:03:29,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:29,335 INFO L225 Difference]: With dead ends: 36923 [2022-11-03 04:03:29,335 INFO L226 Difference]: Without dead ends: 36921 [2022-11-03 04:03:29,354 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 [2022-11-03 04:03:29,355 INFO L413 NwaCegarLoop]: 3392 mSDtfsCounter, 3656 mSDsluCounter, 7916 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3671 SdHoareTripleChecker+Valid, 10204 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:29,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3671 Valid, 10204 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1664 Invalid, 7 Unknown, 0 Unchecked, 46.9s Time] [2022-11-03 04:03:29,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36921 states. [2022-11-03 04:03:31,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36921 to 36921. [2022-11-03 04:03:31,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36921 states, 23581 states have (on average 1.338026377168059) internal successors, (31552), 23937 states have internal predecessors, (31552), 10621 states have call successors, (10621), 2712 states have call predecessors, (10621), 2716 states have return successors, (10796), 10442 states have call predecessors, (10796), 10617 states have call successors, (10796) [2022-11-03 04:03:31,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36921 states to 36921 states and 52969 transitions. [2022-11-03 04:03:31,345 INFO L78 Accepts]: Start accepts. Automaton has 36921 states and 52969 transitions. Word has length 1182 [2022-11-03 04:03:31,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:31,346 INFO L495 AbstractCegarLoop]: Abstraction has 36921 states and 52969 transitions. [2022-11-03 04:03:31,346 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) [2022-11-03 04:03:31,346 INFO L276 IsEmpty]: Start isEmpty. Operand 36921 states and 52969 transitions. [2022-11-03 04:03:31,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1188 [2022-11-03 04:03:31,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:31,369 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:31,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 04:03:31,370 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)] === [2022-11-03 04:03:31,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:31,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1957005350, now seen corresponding path program 1 times [2022-11-03 04:03:31,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:31,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889111999] [2022-11-03 04:03:31,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:31,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:34,063 INFO L134 CoverageAnalysis]: Checked inductivity of 48889 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48887 trivial. 0 not checked. [2022-11-03 04:03:34,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:34,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889111999] [2022-11-03 04:03:34,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889111999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:34,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:34,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:03:34,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147653109] [2022-11-03 04:03:34,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:34,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:03:34,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:34,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:03:34,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:03:34,067 INFO L87 Difference]: Start difference. First operand 36921 states and 52969 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) [2022-11-03 04:03:37,130 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 [] [2022-11-03 04:03:38,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:46,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 04:03:48,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:03:50,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:03:52,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:53,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:56,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:58,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:00,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:02,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:04,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:04:10,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:16,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:18,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:23,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:04:26,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:26,422 INFO L93 Difference]: Finished difference Result 36943 states and 52988 transitions. [2022-11-03 04:04:26,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:04:26,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (124), 3 states have call predecessors, (124), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) Word has length 1187 [2022-11-03 04:04:26,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:26,571 INFO L225 Difference]: With dead ends: 36943 [2022-11-03 04:04:26,571 INFO L226 Difference]: Without dead ends: 36941 [2022-11-03 04:04:26,590 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 [2022-11-03 04:04:26,591 INFO L413 NwaCegarLoop]: 3398 mSDtfsCounter, 3640 mSDsluCounter, 7929 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3660 SdHoareTripleChecker+Valid, 10225 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:26,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3660 Valid, 10225 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1659 Invalid, 11 Unknown, 0 Unchecked, 50.7s Time] [2022-11-03 04:04:26,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36941 states. [2022-11-03 04:04:28,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36941 to 36941. [2022-11-03 04:04:28,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36941 states, 23592 states have (on average 1.3378687690742626) internal successors, (31563), 23950 states have internal predecessors, (31563), 10623 states have call successors, (10623), 2717 states have call predecessors, (10623), 2723 states have return successors, (10800), 10444 states have call predecessors, (10800), 10619 states have call successors, (10800) [2022-11-03 04:04:28,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36941 states to 36941 states and 52986 transitions. [2022-11-03 04:04:28,800 INFO L78 Accepts]: Start accepts. Automaton has 36941 states and 52986 transitions. Word has length 1187 [2022-11-03 04:04:28,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:28,801 INFO L495 AbstractCegarLoop]: Abstraction has 36941 states and 52986 transitions. [2022-11-03 04:04:28,801 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) [2022-11-03 04:04:28,801 INFO L276 IsEmpty]: Start isEmpty. Operand 36941 states and 52986 transitions. [2022-11-03 04:04:28,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1192 [2022-11-03 04:04:28,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:28,828 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] [2022-11-03 04:04:28,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 04:04:28,829 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)] === [2022-11-03 04:04:28,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:28,829 INFO L85 PathProgramCache]: Analyzing trace with hash 189853213, now seen corresponding path program 1 times [2022-11-03 04:04:28,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:28,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285857906] [2022-11-03 04:04:28,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:28,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:31,500 INFO L134 CoverageAnalysis]: Checked inductivity of 48894 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48890 trivial. 0 not checked. [2022-11-03 04:04:31,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:31,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285857906] [2022-11-03 04:04:31,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285857906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:31,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:31,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:04:31,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097211799] [2022-11-03 04:04:31,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:31,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:04:31,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:31,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:04:31,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:04:31,503 INFO L87 Difference]: Start difference. First operand 36941 states and 52986 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) [2022-11-03 04:04:35,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:42,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 04:04:45,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:48,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:50,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:52,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:56,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:04:59,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:03,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:05,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:06,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:08,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:12,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:14,284 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 [] [2022-11-03 04:05:20,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:20,494 INFO L93 Difference]: Finished difference Result 37495 states and 53608 transitions. [2022-11-03 04:05:20,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:05:20,495 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 [2022-11-03 04:05:20,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:20,651 INFO L225 Difference]: With dead ends: 37495 [2022-11-03 04:05:20,651 INFO L226 Difference]: Without dead ends: 37493 [2022-11-03 04:05:20,670 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 [2022-11-03 04:05:20,671 INFO L413 NwaCegarLoop]: 3402 mSDtfsCounter, 3593 mSDsluCounter, 8025 mSDsCounter, 0 mSdLazyCounter, 1670 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3611 SdHoareTripleChecker+Valid, 10318 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1670 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:20,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3611 Valid, 10318 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1670 Invalid, 7 Unknown, 0 Unchecked, 47.1s Time] [2022-11-03 04:05:20,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37493 states. [2022-11-03 04:05:22,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37493 to 37491. [2022-11-03 04:05:22,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37491 states, 23945 states have (on average 1.3358112340780957) internal successors, (31986), 24303 states have internal predecessors, (31986), 10721 states have call successors, (10721), 2816 states have call predecessors, (10721), 2822 states have return successors, (10898), 10542 states have call predecessors, (10898), 10717 states have call successors, (10898) [2022-11-03 04:05:22,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37491 states to 37491 states and 53605 transitions. [2022-11-03 04:05:22,885 INFO L78 Accepts]: Start accepts. Automaton has 37491 states and 53605 transitions. Word has length 1191 [2022-11-03 04:05:22,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:22,886 INFO L495 AbstractCegarLoop]: Abstraction has 37491 states and 53605 transitions. [2022-11-03 04:05:22,886 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) [2022-11-03 04:05:22,887 INFO L276 IsEmpty]: Start isEmpty. Operand 37491 states and 53605 transitions. [2022-11-03 04:05:23,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1197 [2022-11-03 04:05:23,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:23,078 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:23,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 04:05:23,079 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)] === [2022-11-03 04:05:23,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:23,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1499418829, now seen corresponding path program 1 times [2022-11-03 04:05:23,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:23,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428599077] [2022-11-03 04:05:23,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:23,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:25,283 INFO L134 CoverageAnalysis]: Checked inductivity of 48904 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48898 trivial. 0 not checked. [2022-11-03 04:05:25,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:25,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428599077] [2022-11-03 04:05:25,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428599077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:25,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:25,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:05:25,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650607020] [2022-11-03 04:05:25,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:25,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:05:25,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:05:25,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:05:25,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:05:25,287 INFO L87 Difference]: Start difference. First operand 37491 states and 53605 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) [2022-11-03 04:05:28,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:30,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:31,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:37,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:39,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:41,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:05:43,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:46,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:48,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:53,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:05:55,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:58,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:59,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:01,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:07,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:09,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:11,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:17,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 04:06:19,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:19,260 INFO L93 Difference]: Finished difference Result 37631 states and 53718 transitions. [2022-11-03 04:06:19,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:06:19,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (126), 3 states have call predecessors, (126), 1 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) Word has length 1196 [2022-11-03 04:06:19,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:19,421 INFO L225 Difference]: With dead ends: 37631 [2022-11-03 04:06:19,421 INFO L226 Difference]: Without dead ends: 37629 [2022-11-03 04:06:19,441 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 [2022-11-03 04:06:19,442 INFO L413 NwaCegarLoop]: 3400 mSDtfsCounter, 3621 mSDsluCounter, 7960 mSDsCounter, 0 mSdLazyCounter, 1672 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3640 SdHoareTripleChecker+Valid, 10250 SdHoareTripleChecker+Invalid, 1682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1672 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:19,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3640 Valid, 10250 Invalid, 1682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1672 Invalid, 8 Unknown, 0 Unchecked, 52.1s Time] [2022-11-03 04:06:19,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37629 states. [2022-11-03 04:06:21,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37629 to 37593. [2022-11-03 04:06:21,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37593 states, 24004 states have (on average 1.334985835694051) internal successors, (32045), 24362 states have internal predecessors, (32045), 10721 states have call successors, (10721), 2859 states have call predecessors, (10721), 2865 states have return successors, (10898), 10542 states have call predecessors, (10898), 10717 states have call successors, (10898) [2022-11-03 04:06:21,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37593 states to 37593 states and 53664 transitions. [2022-11-03 04:06:21,699 INFO L78 Accepts]: Start accepts. Automaton has 37593 states and 53664 transitions. Word has length 1196 [2022-11-03 04:06:21,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:21,700 INFO L495 AbstractCegarLoop]: Abstraction has 37593 states and 53664 transitions. [2022-11-03 04:06:21,700 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) [2022-11-03 04:06:21,700 INFO L276 IsEmpty]: Start isEmpty. Operand 37593 states and 53664 transitions. [2022-11-03 04:06:21,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1203 [2022-11-03 04:06:21,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:21,726 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 5, 4, 4, 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] [2022-11-03 04:06:21,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 04:06:21,726 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)] === [2022-11-03 04:06:21,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:21,727 INFO L85 PathProgramCache]: Analyzing trace with hash -361439722, now seen corresponding path program 1 times [2022-11-03 04:06:21,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:21,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684358686] [2022-11-03 04:06:21,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:21,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:23,678 INFO L134 CoverageAnalysis]: Checked inductivity of 48919 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 48911 trivial. 0 not checked. [2022-11-03 04:06:23,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:23,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684358686] [2022-11-03 04:06:23,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684358686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:23,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:23,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:06:23,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990837818] [2022-11-03 04:06:23,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:23,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:23,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:23,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:23,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:06:23,683 INFO L87 Difference]: Start difference. First operand 37593 states and 53664 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) [2022-11-03 04:06:27,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:28,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:35,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 04:06:38,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:39,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:41,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:43,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:45,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:50,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:06:52,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:55,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:57,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:59,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:04,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:06,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:08,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:14,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 04:07:17,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:07:19,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:19,655 INFO L93 Difference]: Finished difference Result 37599 states and 53669 transitions. [2022-11-03 04:07:19,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:07:19,655 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 1202 [2022-11-03 04:07:19,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:19,762 INFO L225 Difference]: With dead ends: 37599 [2022-11-03 04:07:19,763 INFO L226 Difference]: Without dead ends: 37597 [2022-11-03 04:07:19,775 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 [2022-11-03 04:07:19,775 INFO L413 NwaCegarLoop]: 3395 mSDtfsCounter, 3644 mSDsluCounter, 7912 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3662 SdHoareTripleChecker+Valid, 10207 SdHoareTripleChecker+Invalid, 1668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:19,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3662 Valid, 10207 Invalid, 1668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1657 Invalid, 10 Unknown, 0 Unchecked, 53.6s Time] [2022-11-03 04:07:19,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37597 states. [2022-11-03 04:07:22,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37597 to 37597. [2022-11-03 04:07:22,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37597 states, 24007 states have (on average 1.3349439746740535) internal successors, (32048), 24365 states have internal predecessors, (32048), 10721 states have call successors, (10721), 2860 states have call predecessors, (10721), 2866 states have return successors, (10898), 10542 states have call predecessors, (10898), 10717 states have call successors, (10898) [2022-11-03 04:07:22,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37597 states to 37597 states and 53667 transitions. [2022-11-03 04:07:22,298 INFO L78 Accepts]: Start accepts. Automaton has 37597 states and 53667 transitions. Word has length 1202 [2022-11-03 04:07:22,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:22,299 INFO L495 AbstractCegarLoop]: Abstraction has 37597 states and 53667 transitions. [2022-11-03 04:07:22,300 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) [2022-11-03 04:07:22,300 INFO L276 IsEmpty]: Start isEmpty. Operand 37597 states and 53667 transitions. [2022-11-03 04:07:22,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1219 [2022-11-03 04:07:22,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:22,475 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 6, 5, 5, 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] [2022-11-03 04:07:22,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 04:07:22,476 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)] === [2022-11-03 04:07:22,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:22,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1794556276, now seen corresponding path program 1 times [2022-11-03 04:07:22,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:22,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295462201] [2022-11-03 04:07:22,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:22,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:24,276 INFO L134 CoverageAnalysis]: Checked inductivity of 48944 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 48934 trivial. 0 not checked. [2022-11-03 04:07:24,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:24,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295462201] [2022-11-03 04:07:24,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295462201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:24,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:24,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:07:24,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277443447] [2022-11-03 04:07:24,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:24,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:07:24,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:24,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:07:24,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:07:24,281 INFO L87 Difference]: Start difference. First operand 37597 states and 53667 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, (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) [2022-11-03 04:07:27,776 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 [] [2022-11-03 04:07:28,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:30,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:37,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 04:07:39,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:40,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:43,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:45,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:47,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:52,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:07:54,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:56,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:58,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:59,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:00,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:04,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:05,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:07,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:09,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:15,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:08:18,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:18,037 INFO L93 Difference]: Finished difference Result 37603 states and 53672 transitions. [2022-11-03 04:08:18,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:08:18,038 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, (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 1218 [2022-11-03 04:08:18,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:18,153 INFO L225 Difference]: With dead ends: 37603 [2022-11-03 04:08:18,153 INFO L226 Difference]: Without dead ends: 37601 [2022-11-03 04:08:18,168 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 [2022-11-03 04:08:18,168 INFO L413 NwaCegarLoop]: 3398 mSDtfsCounter, 3641 mSDsluCounter, 7932 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3657 SdHoareTripleChecker+Valid, 10225 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:18,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3657 Valid, 10225 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1665 Invalid, 8 Unknown, 0 Unchecked, 51.6s Time] [2022-11-03 04:08:18,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37601 states. [2022-11-03 04:08:20,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37601 to 37601. [2022-11-03 04:08:20,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37601 states, 24010 states have (on average 1.3349021241149521) internal successors, (32051), 24368 states have internal predecessors, (32051), 10721 states have call successors, (10721), 2861 states have call predecessors, (10721), 2867 states have return successors, (10898), 10542 states have call predecessors, (10898), 10717 states have call successors, (10898) [2022-11-03 04:08:20,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37601 states to 37601 states and 53670 transitions. [2022-11-03 04:08:20,664 INFO L78 Accepts]: Start accepts. Automaton has 37601 states and 53670 transitions. Word has length 1218 [2022-11-03 04:08:20,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:20,665 INFO L495 AbstractCegarLoop]: Abstraction has 37601 states and 53670 transitions. [2022-11-03 04:08:20,666 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, (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) [2022-11-03 04:08:20,666 INFO L276 IsEmpty]: Start isEmpty. Operand 37601 states and 53670 transitions. [2022-11-03 04:08:20,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1213 [2022-11-03 04:08:20,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:20,687 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 7, 6, 6, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:20,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 04:08:20,687 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)] === [2022-11-03 04:08:20,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:20,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1221722198, now seen corresponding path program 1 times [2022-11-03 04:08:20,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:20,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577418513] [2022-11-03 04:08:20,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:20,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:22,381 INFO L134 CoverageAnalysis]: Checked inductivity of 48959 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 48947 trivial. 0 not checked. [2022-11-03 04:08:22,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:22,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577418513] [2022-11-03 04:08:22,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577418513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:22,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:22,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:08:22,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988711158] [2022-11-03 04:08:22,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:22,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:08:22,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:22,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:08:22,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:08:22,385 INFO L87 Difference]: Start difference. First operand 37601 states and 53670 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) [2022-11-03 04:08:26,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:28,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:35,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 04:08:37,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:38,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:41,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:43,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:45,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:50,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:08:58,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:09:01,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:09:03,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:09:05,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:09:11,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:09:13,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 04:09:16,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:16,482 INFO L93 Difference]: Finished difference Result 37607 states and 53675 transitions. [2022-11-03 04:09:16,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:09:16,483 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 1212 [2022-11-03 04:09:16,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:16,595 INFO L225 Difference]: With dead ends: 37607 [2022-11-03 04:09:16,595 INFO L226 Difference]: Without dead ends: 37605 [2022-11-03 04:09:16,610 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 [2022-11-03 04:09:16,610 INFO L413 NwaCegarLoop]: 3398 mSDtfsCounter, 3638 mSDsluCounter, 7930 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3652 SdHoareTripleChecker+Valid, 10225 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:16,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3652 Valid, 10225 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1662 Invalid, 9 Unknown, 0 Unchecked, 51.7s Time] [2022-11-03 04:09:16,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37605 states. [2022-11-03 04:09:19,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37605 to 37605. [2022-11-03 04:09:19,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37605 states, 24013 states have (on average 1.3348602840128263) internal successors, (32054), 24371 states have internal predecessors, (32054), 10721 states have call successors, (10721), 2862 states have call predecessors, (10721), 2868 states have return successors, (10898), 10542 states have call predecessors, (10898), 10717 states have call successors, (10898) [2022-11-03 04:09:19,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37605 states to 37605 states and 53673 transitions. [2022-11-03 04:09:19,334 INFO L78 Accepts]: Start accepts. Automaton has 37605 states and 53673 transitions. Word has length 1212 [2022-11-03 04:09:19,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:19,335 INFO L495 AbstractCegarLoop]: Abstraction has 37605 states and 53673 transitions. [2022-11-03 04:09:19,336 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) [2022-11-03 04:09:19,336 INFO L276 IsEmpty]: Start isEmpty. Operand 37605 states and 53673 transitions. [2022-11-03 04:09:19,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1218 [2022-11-03 04:09:19,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:19,355 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 8, 7, 7, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:19,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 04:09:19,355 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)] === [2022-11-03 04:09:19,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:19,356 INFO L85 PathProgramCache]: Analyzing trace with hash -894208102, now seen corresponding path program 1 times [2022-11-03 04:09:19,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:19,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975229389] [2022-11-03 04:09:19,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:19,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:21,035 INFO L134 CoverageAnalysis]: Checked inductivity of 48985 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 48971 trivial. 0 not checked. [2022-11-03 04:09:21,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:21,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975229389] [2022-11-03 04:09:21,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975229389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:21,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:21,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:09:21,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342543017] [2022-11-03 04:09:21,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:21,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:09:21,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:21,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:09:21,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:09:21,039 INFO L87 Difference]: Start difference. First operand 37605 states and 53673 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) [2022-11-03 04:09:24,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:09:25,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:09:26,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:09:37,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:09:39,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:09:41,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:09:45,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:09:48,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:09:53,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:09:55,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:09:58,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:00,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:02,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:04,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:10:09,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:10:12,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:10:14,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:14,895 INFO L93 Difference]: Finished difference Result 37611 states and 53678 transitions. [2022-11-03 04:10:14,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:10:14,896 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 1217 [2022-11-03 04:10:14,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:14,996 INFO L225 Difference]: With dead ends: 37611 [2022-11-03 04:10:14,996 INFO L226 Difference]: Without dead ends: 37607 [2022-11-03 04:10:15,007 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 [2022-11-03 04:10:15,007 INFO L413 NwaCegarLoop]: 3398 mSDtfsCounter, 3644 mSDsluCounter, 7934 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3653 SdHoareTripleChecker+Valid, 10225 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:15,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3653 Valid, 10225 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1666 Invalid, 9 Unknown, 0 Unchecked, 51.5s Time] [2022-11-03 04:10:15,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37607 states. [2022-11-03 04:10:17,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37607 to 37607. [2022-11-03 04:10:17,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37607 states, 24015 states have (on average 1.334790755777639) internal successors, (32055), 24372 states have internal predecessors, (32055), 10721 states have call successors, (10721), 2863 states have call predecessors, (10721), 2868 states have return successors, (10898), 10542 states have call predecessors, (10898), 10717 states have call successors, (10898) [2022-11-03 04:10:17,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37607 states to 37607 states and 53674 transitions. [2022-11-03 04:10:17,685 INFO L78 Accepts]: Start accepts. Automaton has 37607 states and 53674 transitions. Word has length 1217 [2022-11-03 04:10:17,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:17,686 INFO L495 AbstractCegarLoop]: Abstraction has 37607 states and 53674 transitions. [2022-11-03 04:10:17,686 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) [2022-11-03 04:10:17,686 INFO L276 IsEmpty]: Start isEmpty. Operand 37607 states and 53674 transitions. [2022-11-03 04:10:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1234 [2022-11-03 04:10:17,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:17,707 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] [2022-11-03 04:10:17,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 04:10:17,707 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)] === [2022-11-03 04:10:17,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:17,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1522179108, now seen corresponding path program 1 times [2022-11-03 04:10:17,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:10:17,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518080642] [2022-11-03 04:10:17,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:17,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:10:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 49022 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 49006 trivial. 0 not checked. [2022-11-03 04:10:19,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:10:19,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518080642] [2022-11-03 04:10:19,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518080642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:19,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:19,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:10:19,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547553310] [2022-11-03 04:10:19,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:19,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:10:19,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:10:19,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:10:19,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:10:19,295 INFO L87 Difference]: Start difference. First operand 37607 states and 53674 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) [2022-11-03 04:10:23,419 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 []