./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:40:48,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:40:48,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:40:48,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:40:48,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:40:48,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:40:48,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:40:48,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:40:48,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:40:48,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:40:48,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:40:48,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:40:48,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:40:48,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:40:48,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:40:48,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:40:48,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:40:48,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:40:48,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:40:48,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:40:48,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:40:48,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:40:48,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:40:48,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:40:48,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:40:48,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:40:48,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:40:48,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:40:48,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:40:48,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:40:48,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:40:48,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:40:48,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:40:48,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:40:48,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:40:48,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:40:48,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:40:48,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:40:48,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:40:48,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:40:48,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:40:48,445 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:40:48,473 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:40:48,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:40:48,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:40:48,475 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:40:48,475 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:40:48,475 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:40:48,475 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:40:48,476 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:40:48,476 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:40:48,476 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:40:48,476 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:40:48,477 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:40:48,477 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:40:48,477 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:40:48,477 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:40:48,478 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:40:48,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:40:48,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:40:48,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:40:48,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:40:48,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:40:48,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:40:48,480 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:40:48,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:40:48,480 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:40:48,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:40:48,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:40:48,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:40:48,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:40:48,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:40:48,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:40:48,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:40:48,482 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:40:48,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:40:48,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:40:48,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:40:48,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:40:48,484 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 [2021-11-12 22:40:48,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:40:48,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:40:48,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:40:48,822 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:40:48,822 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:40:48,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2021-11-12 22:40:48,915 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/data/d2a483d6b/94e8910dca194689a039b7cd520ab418/FLAG515f680b6 [2021-11-12 22:40:49,945 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:40:49,946 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2021-11-12 22:40:50,042 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/data/d2a483d6b/94e8910dca194689a039b7cd520ab418/FLAG515f680b6 [2021-11-12 22:40:50,226 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/data/d2a483d6b/94e8910dca194689a039b7cd520ab418 [2021-11-12 22:40:50,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:40:50,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:40:50,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:40:50,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:40:50,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:40:50,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:40:50" (1/1) ... [2021-11-12 22:40:50,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec79348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:50, skipping insertion in model container [2021-11-12 22:40:50,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:40:50" (1/1) ... [2021-11-12 22:40:50,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:40:50,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:40:52,843 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:52,851 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:52,872 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:52,897 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:52,912 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:52,914 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:52,935 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:52,946 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:52,962 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:52,996 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,025 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,048 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,058 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,076 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,093 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,135 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,142 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,155 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,162 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,173 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,181 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,190 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,197 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,214 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,222 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,257 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,265 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,273 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,282 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,293 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,326 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,401 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,441 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,449 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:53,457 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,360 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,360 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,366 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,367 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,370 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,370 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,384 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,384 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,384 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,385 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,385 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,385 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,386 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,386 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,386 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,387 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,387 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,387 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,387 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,388 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,388 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,390 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,390 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,397 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,397 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,397 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,398 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,398 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,398 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,399 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,399 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,399 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,400 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,400 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,400 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,401 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,401 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,402 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,403 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,403 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,429 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,460 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,468 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,500 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,513 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:40:54,935 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[570903,570916] [2021-11-12 22:40:54,938 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571069,571082] [2021-11-12 22:40:54,938 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571233,571246] [2021-11-12 22:40:54,944 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571398,571411] [2021-11-12 22:40:54,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:40:55,106 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:40:55,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4a3853fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:55, skipping insertion in model container [2021-11-12 22:40:55,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:40:55,107 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:40:55,110 INFO L158 Benchmark]: Toolchain (without parser) took 4877.66ms. Allocated memory was 86.0MB in the beginning and 159.4MB in the end (delta: 73.4MB). Free memory was 47.1MB in the beginning and 67.6MB in the end (delta: -20.5MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2021-11-12 22:40:55,111 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 86.0MB. Free memory was 55.9MB in the beginning and 55.9MB in the end (delta: 25.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:40:55,112 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4872.77ms. Allocated memory was 86.0MB in the beginning and 159.4MB in the end (delta: 73.4MB). Free memory was 47.1MB in the beginning and 67.6MB in the end (delta: -20.5MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2021-11-12 22:40:55,115 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 86.0MB. Free memory was 55.9MB in the beginning and 55.9MB in the end (delta: 25.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4872.77ms. Allocated memory was 86.0MB in the beginning and 159.4MB in the end (delta: 73.4MB). Free memory was 47.1MB in the beginning and 67.6MB in the end (delta: -20.5MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 8449]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:40:57,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:40:57,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:40:57,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:40:57,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:40:57,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:40:57,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:40:57,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:40:57,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:40:57,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:40:57,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:40:57,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:40:57,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:40:57,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:40:57,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:40:57,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:40:57,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:40:57,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:40:57,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:40:57,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:40:57,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:40:57,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:40:57,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:40:57,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:40:57,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:40:57,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:40:57,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:40:57,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:40:57,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:40:57,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:40:57,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:40:57,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:40:57,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:40:57,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:40:57,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:40:57,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:40:57,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:40:57,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:40:57,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:40:57,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:40:57,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:40:57,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:40:57,520 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:40:57,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:40:57,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:40:57,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:40:57,522 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:40:57,523 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:40:57,523 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:40:57,523 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:40:57,523 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:40:57,524 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:40:57,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:40:57,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:40:57,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:40:57,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:40:57,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:40:57,527 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:40:57,527 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:40:57,527 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:40:57,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:40:57,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:40:57,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:40:57,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:40:57,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:40:57,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:40:57,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:40:57,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:40:57,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:40:57,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:40:57,530 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:40:57,530 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:40:57,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:40:57,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:40:57,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:40:57,531 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 [2021-11-12 22:40:57,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:40:57,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:40:57,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:40:57,940 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:40:57,941 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:40:57,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2021-11-12 22:40:58,030 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/data/bb1b3095b/67ec2180326748ccae2414a0126f282f/FLAGe1cb570ed [2021-11-12 22:40:59,235 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:40:59,236 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2021-11-12 22:40:59,316 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/data/bb1b3095b/67ec2180326748ccae2414a0126f282f/FLAGe1cb570ed [2021-11-12 22:40:59,467 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/data/bb1b3095b/67ec2180326748ccae2414a0126f282f [2021-11-12 22:40:59,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:40:59,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:40:59,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:40:59,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:40:59,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:40:59,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:40:59" (1/1) ... [2021-11-12 22:40:59,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8a9011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:59, skipping insertion in model container [2021-11-12 22:40:59,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:40:59" (1/1) ... [2021-11-12 22:40:59,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:40:59,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:41:03,855 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[570903,570916] [2021-11-12 22:41:03,858 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571069,571082] [2021-11-12 22:41:03,858 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571233,571246] [2021-11-12 22:41:03,859 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571398,571411] [2021-11-12 22:41:03,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:04,030 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:41:04,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:41:04,590 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[570903,570916] [2021-11-12 22:41:04,591 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571069,571082] [2021-11-12 22:41:04,591 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571233,571246] [2021-11-12 22:41:04,592 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571398,571411] [2021-11-12 22:41:04,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:04,694 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:41:05,416 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[570903,570916] [2021-11-12 22:41:05,417 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571069,571082] [2021-11-12 22:41:05,417 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571233,571246] [2021-11-12 22:41:05,417 WARN L228 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_acdf17e7-e855-4e1f-ad99-a4b383b081ee/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571398,571411] [2021-11-12 22:41:05,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:05,747 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:41:05,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:05 WrapperNode [2021-11-12 22:41:05,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:05,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:41:05,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:41:05,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:41:05,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:05" (1/1) ... [2021-11-12 22:41:05,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:05" (1/1) ... [2021-11-12 22:41:06,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:41:06,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:41:06,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:41:06,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:41:06,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:05" (1/1) ... [2021-11-12 22:41:06,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:05" (1/1) ... [2021-11-12 22:41:06,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:05" (1/1) ... [2021-11-12 22:41:06,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:05" (1/1) ... [2021-11-12 22:41:06,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:05" (1/1) ... [2021-11-12 22:41:06,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:05" (1/1) ... [2021-11-12 22:41:06,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:05" (1/1) ... [2021-11-12 22:41:06,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:41:06,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:41:06,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:41:06,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:41:06,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:05" (1/1) ... [2021-11-12 22:41:06,873 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:41:06,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:41:06,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:41:06,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:41:06,956 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2021-11-12 22:41:06,956 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2021-11-12 22:41:06,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 22:41:06,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 22:41:06,956 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2021-11-12 22:41:06,957 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2021-11-12 22:41:06,957 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_unregister_video [2021-11-12 22:41:06,957 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_unregister_video [2021-11-12 22:41:06,957 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_cap [2021-11-12 22:41:06,957 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_cap [2021-11-12 22:41:06,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:41:06,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:41:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_input [2021-11-12 22:41:06,958 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_input [2021-11-12 22:41:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2021-11-12 22:41:06,958 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2021-11-12 22:41:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_fmt_vid_cap [2021-11-12 22:41:06,958 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_fmt_vid_cap [2021-11-12 22:41:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-12 22:41:06,959 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-12 22:41:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvnorm [2021-11-12 22:41:06,959 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvnorm [2021-11-12 22:41:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvaudio [2021-11-12 22:41:06,959 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvaudio [2021-11-12 22:41:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~C_INT [2021-11-12 22:41:06,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~C_INT [2021-11-12 22:41:06,960 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_vid_ctrl [2021-11-12 22:41:06,960 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_vid_ctrl [2021-11-12 22:41:06,960 INFO L130 BoogieDeclarations]: Found specification of procedure res_free [2021-11-12 22:41:06,960 INFO L138 BoogieDeclarations]: Found implementation of procedure res_free [2021-11-12 22:41:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-12 22:41:06,961 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-12 22:41:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2021-11-12 22:41:06,961 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2021-11-12 22:41:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_shutdown [2021-11-12 22:41:06,961 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_shutdown [2021-11-12 22:41:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_cap [2021-11-12 22:41:06,961 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_cap [2021-11-12 22:41:06,962 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-12 22:41:06,962 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-12 22:41:06,962 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_newstation [2021-11-12 22:41:06,962 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_newstation [2021-11-12 22:41:06,962 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_std [2021-11-12 22:41:06,963 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_std [2021-11-12 22:41:06,964 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_vdev_init [2021-11-12 22:41:06,964 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_vdev_init [2021-11-12 22:41:06,964 INFO L130 BoogieDeclarations]: Found specification of procedure video_mmap [2021-11-12 22:41:06,964 INFO L138 BoogieDeclarations]: Found implementation of procedure video_mmap [2021-11-12 22:41:06,964 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 22:41:06,964 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 22:41:06,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:41:06,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:41:06,965 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 22:41:06,965 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 22:41:06,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2021-11-12 22:41:06,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2021-11-12 22:41:06,966 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2021-11-12 22:41:06,966 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2021-11-12 22:41:06,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:41:06,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:41:06,967 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_poll [2021-11-12 22:41:06,967 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_poll [2021-11-12 22:41:06,967 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_frequency [2021-11-12 22:41:06,967 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_frequency [2021-11-12 22:41:06,967 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querybuf [2021-11-12 22:41:06,968 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querybuf [2021-11-12 22:41:06,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-12 22:41:06,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-12 22:41:06,968 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-12 22:41:06,968 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-12 22:41:06,968 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_register [2021-11-12 22:41:06,968 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_register [2021-11-12 22:41:06,968 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-11-12 22:41:06,968 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-11-12 22:41:06,969 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2021-11-12 22:41:06,969 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2021-11-12 22:41:06,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:41:06,969 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_stereo [2021-11-12 22:41:06,970 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_stereo [2021-11-12 22:41:06,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 22:41:06,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:41:06,970 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_vbi_fmt [2021-11-12 22:41:06,971 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_vbi_fmt [2021-11-12 22:41:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:41:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:41:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-12 22:41:06,971 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-12 22:41:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2021-11-12 22:41:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-12 22:41:06,972 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-12 22:41:06,972 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2021-11-12 22:41:06,972 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2021-11-12 22:41:06,972 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2021-11-12 22:41:06,972 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2021-11-12 22:41:06,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:41:06,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:41:06,972 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_restart_vbi_queue [2021-11-12 22:41:06,972 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_restart_vbi_queue [2021-11-12 22:41:06,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_vb_lock_of_videobuf_queue [2021-11-12 22:41:06,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_vb_lock_of_videobuf_queue [2021-11-12 22:41:06,973 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_finidev [2021-11-12 22:41:06,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_finidev [2021-11-12 22:41:06,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 22:41:06,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 22:41:06,975 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2021-11-12 22:41:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2021-11-12 22:41:06,977 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_querycap [2021-11-12 22:41:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_querycap [2021-11-12 22:41:06,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 22:41:06,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 22:41:06,978 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2021-11-12 22:41:06,979 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2021-11-12 22:41:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 22:41:06,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 22:41:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_aud_ctrl [2021-11-12 22:41:06,986 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_aud_ctrl [2021-11-12 22:41:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure video_read [2021-11-12 22:41:06,986 INFO L138 BoogieDeclarations]: Found implementation of procedure video_read [2021-11-12 22:41:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-12 22:41:06,986 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-12 22:41:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_video_mux [2021-11-12 22:41:06,986 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_video_mux [2021-11-12 22:41:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 22:41:06,986 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 22:41:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure video_is_registered [2021-11-12 22:41:06,987 INFO L138 BoogieDeclarations]: Found implementation of procedure video_is_registered [2021-11-12 22:41:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2021-11-12 22:41:06,987 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2021-11-12 22:41:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-12 22:41:06,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-12 22:41:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure video_unregister_device [2021-11-12 22:41:06,987 INFO L138 BoogieDeclarations]: Found implementation of procedure video_unregister_device [2021-11-12 22:41:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:41:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 22:41:06,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 22:41:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 22:41:06,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 22:41:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-12 22:41:06,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-12 22:41:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-12 22:41:06,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-12 22:41:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_sg_init [2021-11-12 22:41:06,988 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_sg_init [2021-11-12 22:41:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:41:06,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:41:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:41:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure video_release [2021-11-12 22:41:06,989 INFO L138 BoogieDeclarations]: Found implementation of procedure video_release [2021-11-12 22:41:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:41:06,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:41:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure restart_video_queue [2021-11-12 22:41:06,989 INFO L138 BoogieDeclarations]: Found implementation of procedure restart_video_queue [2021-11-12 22:41:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2021-11-12 22:41:06,989 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2021-11-12 22:41:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_wakeup [2021-11-12 22:41:06,990 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_wakeup [2021-11-12 22:41:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-12 22:41:06,990 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-12 22:41:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_s_ctrl [2021-11-12 22:41:06,990 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_s_ctrl [2021-11-12 22:41:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2021-11-12 22:41:06,990 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2021-11-12 22:41:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_enum_input [2021-11-12 22:41:06,990 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_enum_input [2021-11-12 22:41:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_dump [2021-11-12 22:41:06,991 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_dump [2021-11-12 22:41:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure video_set_drvdata [2021-11-12 22:41:06,991 INFO L138 BoogieDeclarations]: Found implementation of procedure video_set_drvdata [2021-11-12 22:41:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_tuner [2021-11-12 22:41:06,991 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_tuner [2021-11-12 22:41:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure res_check [2021-11-12 22:41:06,991 INFO L138 BoogieDeclarations]: Found implementation of procedure res_check [2021-11-12 22:41:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure format_by_fourcc [2021-11-12 22:41:06,992 INFO L138 BoogieDeclarations]: Found implementation of procedure format_by_fourcc [2021-11-12 22:41:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_buffer [2021-11-12 22:41:06,992 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_buffer [2021-11-12 22:41:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-12 22:41:06,992 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-12 22:41:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-12 22:41:06,992 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-12 22:41:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2021-11-12 22:41:06,992 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2021-11-12 22:41:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:41:06,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:41:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_stopper [2021-11-12 22:41:06,993 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_stopper [2021-11-12 22:41:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-12 22:41:06,993 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-12 22:41:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:41:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-12 22:41:06,993 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-12 22:41:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:41:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:41:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:41:06,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:41:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_std [2021-11-12 22:41:06,994 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_std [2021-11-12 22:41:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2021-11-12 22:41:06,994 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2021-11-12 22:41:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_setup [2021-11-12 22:41:06,994 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_setup [2021-11-12 22:41:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_free_buffer [2021-11-12 22:41:06,995 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_free_buffer [2021-11-12 22:41:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2021-11-12 22:41:06,995 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2021-11-12 22:41:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 22:41:06,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 22:41:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_input [2021-11-12 22:41:06,996 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_input [2021-11-12 22:41:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure res_get [2021-11-12 22:41:06,996 INFO L138 BoogieDeclarations]: Found implementation of procedure res_get [2021-11-12 22:41:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2021-11-12 22:41:06,996 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2021-11-12 22:41:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_resume [2021-11-12 22:41:06,996 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_resume [2021-11-12 22:41:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2021-11-12 22:41:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2021-11-12 22:41:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_frequency [2021-11-12 22:41:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_frequency [2021-11-12 22:41:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-12 22:41:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-12 22:41:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-12 22:41:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-12 22:41:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:41:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-12 22:41:06,998 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-12 22:41:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:41:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_put [2021-11-12 22:41:06,998 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_put [2021-11-12 22:41:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_find [2021-11-12 22:41:06,998 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_find [2021-11-12 22:41:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:41:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:41:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_release [2021-11-12 22:41:07,003 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_release [2021-11-12 22:41:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_dma [2021-11-12 22:41:07,003 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_dma [2021-11-12 22:41:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:41:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:41:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:41:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2021-11-12 22:41:07,004 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2021-11-12 22:41:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-12 22:41:07,005 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-12 22:41:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure get_queue [2021-11-12 22:41:07,005 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queue [2021-11-12 22:41:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-12 22:41:07,005 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-12 22:41:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:41:07,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:41:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-12 22:41:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-12 22:41:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 22:41:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 22:41:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2021-11-12 22:41:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2021-11-12 22:41:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-12 22:41:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-12 22:41:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2021-11-12 22:41:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2021-11-12 22:41:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 22:41:07,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 22:41:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2021-11-12 22:41:07,007 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2021-11-12 22:41:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_cx88_core [2021-11-12 22:41:07,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_cx88_core [2021-11-12 22:41:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_cx88_core [2021-11-12 22:41:07,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_cx88_core [2021-11-12 22:41:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:41:07,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:41:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 22:41:07,008 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 22:41:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 22:41:07,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 22:41:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:41:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:41:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:41:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:41:07,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:41:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2021-11-12 22:41:07,008 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2021-11-12 22:41:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-12 22:41:07,009 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-12 22:41:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_tuner [2021-11-12 22:41:07,009 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_tuner [2021-11-12 22:41:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-12 22:41:07,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-12 22:41:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-12 22:41:07,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-12 22:41:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_start_vbi_dma [2021-11-12 22:41:07,009 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_start_vbi_dma [2021-11-12 22:41:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_ir_stop [2021-11-12 22:41:07,010 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_ir_stop [2021-11-12 22:41:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_register [2021-11-12 22:41:07,010 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_register [2021-11-12 22:41:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:41:07,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:41:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-12 22:41:07,010 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-12 22:41:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-12 22:41:07,010 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-12 22:41:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxw [2021-11-12 22:41:07,011 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxw [2021-11-12 22:41:07,011 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-12 22:41:07,011 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-12 22:41:07,011 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxh [2021-11-12 22:41:07,011 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxh [2021-11-12 22:41:07,011 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-12 22:41:07,011 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-12 22:41:07,011 INFO L130 BoogieDeclarations]: Found specification of procedure get_resource [2021-11-12 22:41:07,011 INFO L138 BoogieDeclarations]: Found implementation of procedure get_resource [2021-11-12 22:41:07,011 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-12 22:41:07,012 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-12 22:41:07,012 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_initdev [2021-11-12 22:41:07,012 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_initdev [2021-11-12 22:41:07,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 22:41:07,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 22:41:09,940 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:42:58,647 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 22:42:58,807 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:42:58,807 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-12 22:42:58,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:42:58 BoogieIcfgContainer [2021-11-12 22:42:58,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:42:58,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:42:58,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:42:58,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:42:58,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:40:59" (1/3) ... [2021-11-12 22:42:58,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350e8fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:42:58, skipping insertion in model container [2021-11-12 22:42:58,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:05" (2/3) ... [2021-11-12 22:42:58,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350e8fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:42:58, skipping insertion in model container [2021-11-12 22:42:58,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:42:58" (3/3) ... [2021-11-12 22:42:58,822 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2021-11-12 22:42:58,828 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:42:58,828 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 22:42:58,894 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:42:58,900 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:42:58,901 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 22:42:58,985 INFO L276 IsEmpty]: Start isEmpty. Operand has 2878 states, 1974 states have (on average 1.2619047619047619) internal successors, (2491), 1989 states have internal predecessors, (2491), 755 states have call successors, (755), 147 states have call predecessors, (755), 146 states have return successors, (748), 747 states have call predecessors, (748), 748 states have call successors, (748) [2021-11-12 22:42:59,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2021-11-12 22:42:59,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:59,025 INFO L514 BasicCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:42:59,026 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:42:59,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:59,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1595131890, now seen corresponding path program 1 times [2021-11-12 22:42:59,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:59,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534846716] [2021-11-12 22:42:59,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:42:59,075 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:59,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:59,078 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:59,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:43:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:12,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 6526 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:43:12,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:14,046 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10584 trivial. 0 not checked. [2021-11-12 22:43:14,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10731 trivial. 0 not checked. [2021-11-12 22:43:15,289 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:15,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534846716] [2021-11-12 22:43:15,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534846716] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:43:15,291 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:43:15,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:43:15,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008728894] [2021-11-12 22:43:15,296 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:43:15,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:43:15,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:15,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:43:15,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:43:15,362 INFO L87 Difference]: Start difference. First operand has 2878 states, 1974 states have (on average 1.2619047619047619) internal successors, (2491), 1989 states have internal predecessors, (2491), 755 states have call successors, (755), 147 states have call predecessors, (755), 146 states have return successors, (748), 747 states have call predecessors, (748), 748 states have call successors, (748) Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) [2021-11-12 22:43:17,014 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:43:19,027 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:43:32,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:43:32,977 INFO L93 Difference]: Finished difference Result 11003 states and 15550 transitions. [2021-11-12 22:43:32,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:43:32,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) Word has length 571 [2021-11-12 22:43:32,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:43:33,076 INFO L225 Difference]: With dead ends: 11003 [2021-11-12 22:43:33,076 INFO L226 Difference]: Without dead ends: 8197 [2021-11-12 22:43:33,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1140 GetRequests, 1138 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:43:33,110 INFO L933 BasicCegarLoop]: 5338 mSDtfsCounter, 9936 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 1382 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15150.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9936 SdHoareTripleChecker+Valid, 11457 SdHoareTripleChecker+Invalid, 2938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 85.46ms SdHoareTripleChecker+Time, 1382 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16851.72ms IncrementalHoareTripleChecker+Time [2021-11-12 22:43:33,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9936 Valid, 11457 Invalid, 2938 Unknown, 0 Unchecked, 85.46ms Time], IncrementalHoareTripleChecker [1382 Valid, 1555 Invalid, 1 Unknown, 0 Unchecked, 16851.72ms Time] [2021-11-12 22:43:33,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8197 states. [2021-11-12 22:43:33,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8197 to 8177. [2021-11-12 22:43:33,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8177 states, 5657 states have (on average 1.2603853632667492) internal successors, (7130), 5698 states have internal predecessors, (7130), 2086 states have call successors, (2086), 432 states have call predecessors, (2086), 431 states have return successors, (2082), 2079 states have call predecessors, (2082), 2082 states have call successors, (2082) [2021-11-12 22:43:33,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8177 states to 8177 states and 11298 transitions. [2021-11-12 22:43:33,728 INFO L78 Accepts]: Start accepts. Automaton has 8177 states and 11298 transitions. Word has length 571 [2021-11-12 22:43:33,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:43:33,737 INFO L470 AbstractCegarLoop]: Abstraction has 8177 states and 11298 transitions. [2021-11-12 22:43:33,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) [2021-11-12 22:43:33,738 INFO L276 IsEmpty]: Start isEmpty. Operand 8177 states and 11298 transitions. [2021-11-12 22:43:33,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2021-11-12 22:43:33,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:33,765 INFO L514 BasicCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:43:33,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:33,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:43:33,980 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:43:33,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:33,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1199863382, now seen corresponding path program 1 times [2021-11-12 22:43:33,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:33,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41149598] [2021-11-12 22:43:33,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:33,993 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:33,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:33,994 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:34,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:43:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:47,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 6600 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:43:47,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:48,662 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10584 trivial. 0 not checked. [2021-11-12 22:43:48,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:49,928 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10731 trivial. 0 not checked. [2021-11-12 22:43:49,929 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:49,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41149598] [2021-11-12 22:43:49,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41149598] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:43:49,929 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:43:49,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:43:49,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145413529] [2021-11-12 22:43:49,930 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:43:49,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:43:49,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:49,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:43:49,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:43:49,934 INFO L87 Difference]: Start difference. First operand 8177 states and 11298 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) [2021-11-12 22:43:53,552 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.61s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:44:04,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:04,204 INFO L93 Difference]: Finished difference Result 25720 states and 35384 transitions. [2021-11-12 22:44:04,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:44:04,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) Word has length 586 [2021-11-12 22:44:04,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:04,348 INFO L225 Difference]: With dead ends: 25720 [2021-11-12 22:44:04,349 INFO L226 Difference]: Without dead ends: 17646 [2021-11-12 22:44:04,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1170 GetRequests, 1168 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:44:04,399 INFO L933 BasicCegarLoop]: 5108 mSDtfsCounter, 7102 mSDsluCounter, 6584 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12557.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7102 SdHoareTripleChecker+Valid, 11692 SdHoareTripleChecker+Invalid, 1658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.04ms SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13514.82ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:04,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7102 Valid, 11692 Invalid, 1658 Unknown, 0 Unchecked, 42.04ms Time], IncrementalHoareTripleChecker [60 Valid, 1597 Invalid, 1 Unknown, 0 Unchecked, 13514.82ms Time] [2021-11-12 22:44:04,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17646 states. [2021-11-12 22:44:05,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17646 to 17604. [2021-11-12 22:44:05,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17604 states, 12219 states have (on average 1.2613143465095342) internal successors, (15412), 12318 states have internal predecessors, (15412), 4376 states have call successors, (4376), 1007 states have call predecessors, (4376), 1006 states have return successors, (4372), 4355 states have call predecessors, (4372), 4372 states have call successors, (4372) [2021-11-12 22:44:05,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17604 states to 17604 states and 24160 transitions. [2021-11-12 22:44:05,354 INFO L78 Accepts]: Start accepts. Automaton has 17604 states and 24160 transitions. Word has length 586 [2021-11-12 22:44:05,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:05,355 INFO L470 AbstractCegarLoop]: Abstraction has 17604 states and 24160 transitions. [2021-11-12 22:44:05,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) [2021-11-12 22:44:05,357 INFO L276 IsEmpty]: Start isEmpty. Operand 17604 states and 24160 transitions. [2021-11-12 22:44:05,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2021-11-12 22:44:05,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:05,378 INFO L514 BasicCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:05,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:05,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:05,599 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:44:05,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:05,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1876660779, now seen corresponding path program 1 times [2021-11-12 22:44:05,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:05,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586079044] [2021-11-12 22:44:05,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:05,610 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:05,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:05,611 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:05,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:44:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:18,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 6599 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:44:18,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:19,714 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10584 trivial. 0 not checked. [2021-11-12 22:44:19,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:20,914 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10731 trivial. 0 not checked. [2021-11-12 22:44:20,914 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:20,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586079044] [2021-11-12 22:44:20,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586079044] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:44:20,915 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:44:20,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:44:20,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058479689] [2021-11-12 22:44:20,915 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:20,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:44:20,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:20,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:44:20,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:44:20,918 INFO L87 Difference]: Start difference. First operand 17604 states and 24160 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) [2021-11-12 22:44:22,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:44:24,802 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:44:37,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:44:37,729 INFO L93 Difference]: Finished difference Result 58046 states and 79594 transitions. [2021-11-12 22:44:37,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:44:37,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) Word has length 585 [2021-11-12 22:44:37,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:44:37,929 INFO L225 Difference]: With dead ends: 58046 [2021-11-12 22:44:37,929 INFO L226 Difference]: Without dead ends: 40545 [2021-11-12 22:44:38,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1168 GetRequests, 1166 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:44:38,012 INFO L933 BasicCegarLoop]: 5973 mSDtfsCounter, 8795 mSDsluCounter, 5751 mSDsCounter, 0 mSdLazyCounter, 1692 mSolverCounterSat, 1119 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14180.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8795 SdHoareTripleChecker+Valid, 11724 SdHoareTripleChecker+Invalid, 2812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.31ms SdHoareTripleChecker+Time, 1119 IncrementalHoareTripleChecker+Valid, 1692 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15519.28ms IncrementalHoareTripleChecker+Time [2021-11-12 22:44:38,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8795 Valid, 11724 Invalid, 2812 Unknown, 0 Unchecked, 40.31ms Time], IncrementalHoareTripleChecker [1119 Valid, 1692 Invalid, 1 Unknown, 0 Unchecked, 15519.28ms Time] [2021-11-12 22:44:38,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40545 states. [2021-11-12 22:44:40,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40545 to 40499. [2021-11-12 22:44:40,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40499 states, 27959 states have (on average 1.2570549733538396) internal successors, (35146), 28232 states have internal predecessors, (35146), 10159 states have call successors, (10159), 2379 states have call predecessors, (10159), 2378 states have return successors, (10155), 10096 states have call predecessors, (10155), 10155 states have call successors, (10155) [2021-11-12 22:44:40,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40499 states to 40499 states and 55460 transitions. [2021-11-12 22:44:40,670 INFO L78 Accepts]: Start accepts. Automaton has 40499 states and 55460 transitions. Word has length 585 [2021-11-12 22:44:40,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:44:40,672 INFO L470 AbstractCegarLoop]: Abstraction has 40499 states and 55460 transitions. [2021-11-12 22:44:40,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) [2021-11-12 22:44:40,673 INFO L276 IsEmpty]: Start isEmpty. Operand 40499 states and 55460 transitions. [2021-11-12 22:44:40,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2021-11-12 22:44:40,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:44:40,683 INFO L514 BasicCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:44:40,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:44:40,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:44:40,900 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:44:40,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:44:40,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1918252416, now seen corresponding path program 1 times [2021-11-12 22:44:40,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:44:40,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184873258] [2021-11-12 22:44:40,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:44:40,911 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:44:40,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:44:40,912 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:44:40,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:44:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:44:54,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 6630 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:44:54,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:44:55,456 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10584 trivial. 0 not checked. [2021-11-12 22:44:55,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:44:56,747 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10731 trivial. 0 not checked. [2021-11-12 22:44:56,748 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:44:56,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184873258] [2021-11-12 22:44:56,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184873258] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:44:56,748 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:44:56,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:44:56,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749232367] [2021-11-12 22:44:56,751 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:44:56,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:44:56,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:44:56,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:44:56,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:44:56,754 INFO L87 Difference]: Start difference. First operand 40499 states and 55460 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) [2021-11-12 22:45:00,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:45:11,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:45:11,011 INFO L93 Difference]: Finished difference Result 141170 states and 193444 transitions. [2021-11-12 22:45:11,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:45:11,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) Word has length 591 [2021-11-12 22:45:11,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:45:11,710 INFO L225 Difference]: With dead ends: 141170 [2021-11-12 22:45:11,710 INFO L226 Difference]: Without dead ends: 100774 [2021-11-12 22:45:11,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1180 GetRequests, 1178 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:45:11,824 INFO L933 BasicCegarLoop]: 7218 mSDtfsCounter, 7252 mSDsluCounter, 7153 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10828.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7252 SdHoareTripleChecker+Valid, 14371 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.96ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11640.08ms IncrementalHoareTripleChecker+Time [2021-11-12 22:45:11,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7252 Valid, 14371 Invalid, 1522 Unknown, 0 Unchecked, 31.96ms Time], IncrementalHoareTripleChecker [42 Valid, 1479 Invalid, 1 Unknown, 0 Unchecked, 11640.08ms Time] [2021-11-12 22:45:11,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100774 states. [2021-11-12 22:45:16,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100774 to 100704. [2021-11-12 22:45:17,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100704 states, 70175 states have (on average 1.2642394014962592) internal successors, (88718), 70861 states have internal predecessors, (88718), 24513 states have call successors, (24513), 6032 states have call predecessors, (24513), 6013 states have return successors, (24509), 24309 states have call predecessors, (24509), 24509 states have call successors, (24509) [2021-11-12 22:45:17,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100704 states to 100704 states and 137740 transitions. [2021-11-12 22:45:17,758 INFO L78 Accepts]: Start accepts. Automaton has 100704 states and 137740 transitions. Word has length 591 [2021-11-12 22:45:17,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:45:17,760 INFO L470 AbstractCegarLoop]: Abstraction has 100704 states and 137740 transitions. [2021-11-12 22:45:17,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) [2021-11-12 22:45:17,760 INFO L276 IsEmpty]: Start isEmpty. Operand 100704 states and 137740 transitions. [2021-11-12 22:45:17,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2021-11-12 22:45:17,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:45:17,775 INFO L514 BasicCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 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] [2021-11-12 22:45:17,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:17,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:45:17,999 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:45:18,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:45:18,000 INFO L85 PathProgramCache]: Analyzing trace with hash -745047224, now seen corresponding path program 1 times [2021-11-12 22:45:18,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:45:18,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624872435] [2021-11-12 22:45:18,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:18,007 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:45:18,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:45:18,007 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:45:18,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:45:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:45:31,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 6655 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:45:31,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:45:36,671 INFO L134 CoverageAnalysis]: Checked inductivity of 11228 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11228 trivial. 0 not checked. [2021-11-12 22:45:36,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:45:39,103 INFO L134 CoverageAnalysis]: Checked inductivity of 11228 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11228 trivial. 0 not checked. [2021-11-12 22:45:39,103 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:45:39,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624872435] [2021-11-12 22:45:39,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624872435] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:45:39,104 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:45:39,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 22:45:39,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103809707] [2021-11-12 22:45:39,105 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:45:39,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:45:39,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:45:39,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:45:39,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:45:39,107 INFO L87 Difference]: Start difference. First operand 100704 states and 137740 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (119), 4 states have call predecessors, (119), 2 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2021-11-12 22:45:40,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:45:44,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:45:44,116 INFO L93 Difference]: Finished difference Result 100710 states and 137745 transitions. [2021-11-12 22:45:44,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:45:44,117 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (119), 4 states have call predecessors, (119), 2 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) Word has length 631 [2021-11-12 22:45:44,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:45:44,836 INFO L225 Difference]: With dead ends: 100710 [2021-11-12 22:45:44,836 INFO L226 Difference]: Without dead ends: 100708 [2021-11-12 22:45:44,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1263 GetRequests, 1255 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:45:44,875 INFO L933 BasicCegarLoop]: 3948 mSDtfsCounter, 3745 mSDsluCounter, 11833 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1710.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3750 SdHoareTripleChecker+Valid, 15781 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.22ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1728.35ms IncrementalHoareTripleChecker+Time [2021-11-12 22:45:44,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3750 Valid, 15781 Invalid, 23 Unknown, 0 Unchecked, 47.22ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 1728.35ms Time] [2021-11-12 22:45:45,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100708 states. [2021-11-12 22:45:48,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100708 to 100708. [2021-11-12 22:45:49,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100708 states, 70178 states have (on average 1.264228105674143) internal successors, (88721), 70864 states have internal predecessors, (88721), 24513 states have call successors, (24513), 6033 states have call predecessors, (24513), 6014 states have return successors, (24509), 24309 states have call predecessors, (24509), 24509 states have call successors, (24509) [2021-11-12 22:45:49,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100708 states to 100708 states and 137743 transitions. [2021-11-12 22:45:49,752 INFO L78 Accepts]: Start accepts. Automaton has 100708 states and 137743 transitions. Word has length 631 [2021-11-12 22:45:49,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:45:49,755 INFO L470 AbstractCegarLoop]: Abstraction has 100708 states and 137743 transitions. [2021-11-12 22:45:49,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (119), 4 states have call predecessors, (119), 2 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2021-11-12 22:45:49,756 INFO L276 IsEmpty]: Start isEmpty. Operand 100708 states and 137743 transitions. [2021-11-12 22:45:49,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2021-11-12 22:45:49,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:45:49,776 INFO L514 BasicCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 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] [2021-11-12 22:45:49,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:45:49,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:45:49,999 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:45:49,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:45:50,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1794863677, now seen corresponding path program 1 times [2021-11-12 22:45:50,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:45:50,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138639703] [2021-11-12 22:45:50,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:45:50,007 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:45:50,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:45:50,008 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:45:50,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:46:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:46:03,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 6662 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:46:03,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:08,633 INFO L134 CoverageAnalysis]: Checked inductivity of 11230 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11228 trivial. 0 not checked. [2021-11-12 22:46:08,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:11,374 INFO L134 CoverageAnalysis]: Checked inductivity of 11230 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11228 trivial. 0 not checked. [2021-11-12 22:46:11,374 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:46:11,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138639703] [2021-11-12 22:46:11,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138639703] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:46:11,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:46:11,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-12 22:46:11,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547957918] [2021-11-12 22:46:11,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:46:11,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:46:11,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:46:11,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:46:11,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:46:11,377 INFO L87 Difference]: Start difference. First operand 100708 states and 137743 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2021-11-12 22:46:13,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:46:16,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:46:16,416 INFO L93 Difference]: Finished difference Result 100714 states and 137748 transitions. [2021-11-12 22:46:16,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:46:16,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 636 [2021-11-12 22:46:16,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:46:16,889 INFO L225 Difference]: With dead ends: 100714 [2021-11-12 22:46:16,889 INFO L226 Difference]: Without dead ends: 100712 [2021-11-12 22:46:16,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1273 GetRequests, 1265 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:46:16,929 INFO L933 BasicCegarLoop]: 3951 mSDtfsCounter, 3810 mSDsluCounter, 7889 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1780.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3814 SdHoareTripleChecker+Valid, 11840 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.18ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1877.29ms IncrementalHoareTripleChecker+Time [2021-11-12 22:46:16,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3814 Valid, 11840 Invalid, 15 Unknown, 0 Unchecked, 18.18ms Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 1877.29ms Time] [2021-11-12 22:46:17,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100712 states. [2021-11-12 22:46:20,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100712 to 100712. [2021-11-12 22:46:21,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100712 states, 70181 states have (on average 1.2642168108177427) internal successors, (88724), 70867 states have internal predecessors, (88724), 24513 states have call successors, (24513), 6034 states have call predecessors, (24513), 6015 states have return successors, (24509), 24309 states have call predecessors, (24509), 24509 states have call successors, (24509) [2021-11-12 22:46:21,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100712 states to 100712 states and 137746 transitions. [2021-11-12 22:46:21,376 INFO L78 Accepts]: Start accepts. Automaton has 100712 states and 137746 transitions. Word has length 636 [2021-11-12 22:46:21,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:46:21,377 INFO L470 AbstractCegarLoop]: Abstraction has 100712 states and 137746 transitions. [2021-11-12 22:46:21,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2021-11-12 22:46:21,378 INFO L276 IsEmpty]: Start isEmpty. Operand 100712 states and 137746 transitions. [2021-11-12 22:46:21,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2021-11-12 22:46:21,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:46:21,393 INFO L514 BasicCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:46:21,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:46:21,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:46:21,615 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:46:21,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:46:21,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1674683432, now seen corresponding path program 1 times [2021-11-12 22:46:21,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:46:21,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727380710] [2021-11-12 22:46:21,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:46:21,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:46:21,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:46:21,623 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:46:21,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:46:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:46:34,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 6669 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:46:34,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:46:40,430 INFO L134 CoverageAnalysis]: Checked inductivity of 11236 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11232 trivial. 0 not checked. [2021-11-12 22:46:40,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:46:42,752 INFO L134 CoverageAnalysis]: Checked inductivity of 11236 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11232 trivial. 0 not checked. [2021-11-12 22:46:42,752 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:46:42,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727380710] [2021-11-12 22:46:42,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727380710] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:46:42,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:46:42,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-12 22:46:42,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891951911] [2021-11-12 22:46:42,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:46:42,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:46:42,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:46:42,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:46:42,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:46:42,755 INFO L87 Difference]: Start difference. First operand 100712 states and 137746 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-12 22:46:44,395 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:46:48,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:46:48,718 INFO L93 Difference]: Finished difference Result 129552 states and 175193 transitions. [2021-11-12 22:46:48,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:46:48,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 641 [2021-11-12 22:46:48,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:46:49,302 INFO L225 Difference]: With dead ends: 129552 [2021-11-12 22:46:49,302 INFO L226 Difference]: Without dead ends: 129550 [2021-11-12 22:46:49,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1283 GetRequests, 1275 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:46:49,338 INFO L933 BasicCegarLoop]: 4214 mSDtfsCounter, 3440 mSDsluCounter, 9861 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1844.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3443 SdHoareTripleChecker+Valid, 14075 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.00ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1951.74ms IncrementalHoareTripleChecker+Time [2021-11-12 22:46:49,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3443 Valid, 14075 Invalid, 17 Unknown, 0 Unchecked, 25.00ms Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 1951.74ms Time] [2021-11-12 22:46:49,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129550 states. [2021-11-12 22:46:54,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129550 to 128830. [2021-11-12 22:46:55,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128830 states, 89340 states have (on average 1.2555070517125588) internal successors, (112167), 90292 states have internal predecessors, (112167), 30969 states have call successors, (30969), 8649 states have call predecessors, (30969), 8518 states have return successors, (31161), 30387 states have call predecessors, (31161), 30965 states have call successors, (31161) [2021-11-12 22:46:55,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128830 states to 128830 states and 174297 transitions. [2021-11-12 22:46:55,820 INFO L78 Accepts]: Start accepts. Automaton has 128830 states and 174297 transitions. Word has length 641 [2021-11-12 22:46:55,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:46:55,821 INFO L470 AbstractCegarLoop]: Abstraction has 128830 states and 174297 transitions. [2021-11-12 22:46:55,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-12 22:46:55,821 INFO L276 IsEmpty]: Start isEmpty. Operand 128830 states and 174297 transitions. [2021-11-12 22:46:55,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2021-11-12 22:46:55,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:46:55,838 INFO L514 BasicCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:46:56,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-12 22:46:56,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:46:56,056 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:46:56,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:46:56,056 INFO L85 PathProgramCache]: Analyzing trace with hash -486966841, now seen corresponding path program 1 times [2021-11-12 22:46:56,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:46:56,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437596077] [2021-11-12 22:46:56,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:46:56,066 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:46:56,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:46:56,067 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:46:56,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acdf17e7-e855-4e1f-ad99-a4b383b081ee/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:47:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:47:08,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 6719 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:47:08,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:47:10,033 INFO L134 CoverageAnalysis]: Checked inductivity of 11253 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 11068 trivial. 0 not checked. [2021-11-12 22:47:10,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:47:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 11253 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11242 trivial. 0 not checked. [2021-11-12 22:47:11,533 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:47:11,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437596077] [2021-11-12 22:47:11,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437596077] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:47:11,534 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:47:11,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:47:11,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864612409] [2021-11-12 22:47:11,535 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:47:11,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:47:11,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:47:11,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:47:11,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:47:11,537 INFO L87 Difference]: Start difference. First operand 128830 states and 174297 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 4 states have call successors, (73), 3 states have call predecessors, (73), 3 states have return successors, (71), 4 states have call predecessors, (71), 4 states have call successors, (71) [2021-11-12 22:47:13,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:47:15,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []