./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.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_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/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_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/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_934b3b50-2831-47d9-a30b-60ef6b3097c0/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 5a4efb80f78cf6db9ac1c2540f0e3afbb357842376bf73c44e7e4fa9311ea9dc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:35:49,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:35:49,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:35:49,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:35:49,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:35:49,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:35:49,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:35:49,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:35:49,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:35:49,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:35:49,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:35:49,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:35:49,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:35:49,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:35:49,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:35:49,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:35:49,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:35:49,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:35:49,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:35:49,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:35:49,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:35:49,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:35:49,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:35:49,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:35:49,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:35:49,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:35:49,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:35:49,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:35:49,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:35:49,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:35:49,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:35:49,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:35:49,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:35:49,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:35:49,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:35:49,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:35:49,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:35:49,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:35:49,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:35:49,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:35:49,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:35:49,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 02:35:49,537 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:35:49,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:35:49,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:35:49,541 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:35:49,541 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:35:49,542 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:35:49,542 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:35:49,542 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:35:49,542 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:35:49,543 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:35:49,544 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:35:49,544 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:35:49,545 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:35:49,545 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:35:49,545 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:35:49,545 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:35:49,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:35:49,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:35:49,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:35:49,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:35:49,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:35:49,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:35:49,548 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:35:49,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:35:49,548 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:35:49,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:35:49,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:35:49,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:35:49,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:35:49,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:35:49,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:35:49,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:35:49,550 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:35:49,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:35:49,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:35:49,551 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:35:49,551 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:35:49,552 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a4efb80f78cf6db9ac1c2540f0e3afbb357842376bf73c44e7e4fa9311ea9dc [2021-11-13 02:35:49,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:35:49,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:35:49,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:35:49,818 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:35:49,821 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:35:49,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i [2021-11-13 02:35:49,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/data/7f3f71e34/8368e272bb024c11935e81b863d612c7/FLAG7720a835a [2021-11-13 02:35:50,904 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:35:50,904 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i [2021-11-13 02:35:50,951 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/data/7f3f71e34/8368e272bb024c11935e81b863d612c7/FLAG7720a835a [2021-11-13 02:35:51,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/data/7f3f71e34/8368e272bb024c11935e81b863d612c7 [2021-11-13 02:35:51,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:35:51,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:35:51,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:35:51,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:35:51,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:35:51,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:35:51" (1/1) ... [2021-11-13 02:35:51,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627536a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:35:51, skipping insertion in model container [2021-11-13 02:35:51,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:35:51" (1/1) ... [2021-11-13 02:35:51,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:35:51,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:35:52,850 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:52,926 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:52,952 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:52,982 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:52,988 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,010 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,017 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,090 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,104 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,128 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,175 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,196 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,284 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,296 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,305 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,313 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,329 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,340 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,350 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,357 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,375 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,381 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,388 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,394 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,401 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,409 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,416 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,423 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,562 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,633 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,640 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,649 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,903 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,903 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,904 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,904 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,913 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,914 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,914 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,935 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,949 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,956 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,963 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,965 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,979 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:53,986 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:54,032 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:54,046 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:54,082 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:54,087 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:54,088 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:54,457 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:54,541 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:54,586 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:54,587 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:54,589 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:54,589 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:54,604 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:54,615 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:35:55,047 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[508948,508961] [2021-11-13 02:35:55,050 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[509114,509127] [2021-11-13 02:35:55,050 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[509278,509291] [2021-11-13 02:35:55,051 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[509443,509456] [2021-11-13 02:35:55,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:35:55,117 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) [2021-11-13 02:35:55,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1c7d19fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:35:55, skipping insertion in model container [2021-11-13 02:35:55,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:35:55,118 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:35:55,121 INFO L158 Benchmark]: Toolchain (without parser) took 3747.23ms. Allocated memory was 121.6MB in the beginning and 157.3MB in the end (delta: 35.7MB). Free memory was 70.9MB in the beginning and 82.0MB in the end (delta: -11.1MB). Peak memory consumption was 71.6MB. Max. memory is 16.1GB. [2021-11-13 02:35:55,122 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:35:55,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3741.69ms. Allocated memory was 121.6MB in the beginning and 157.3MB in the end (delta: 35.7MB). Free memory was 70.6MB in the beginning and 82.0MB in the end (delta: -11.4MB). Peak memory consumption was 71.6MB. Max. memory is 16.1GB. [2021-11-13 02:35:55,126 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3741.69ms. Allocated memory was 121.6MB in the beginning and 157.3MB in the end (delta: 35.7MB). Free memory was 70.6MB in the beginning and 82.0MB in the end (delta: -11.4MB). Peak memory consumption was 71.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4490]: 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/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_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/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_934b3b50-2831-47d9-a30b-60ef6b3097c0/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 5a4efb80f78cf6db9ac1c2540f0e3afbb357842376bf73c44e7e4fa9311ea9dc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:35:57,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:35:57,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:35:57,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:35:57,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:35:57,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:35:57,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:35:57,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:35:57,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:35:57,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:35:57,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:35:57,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:35:57,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:35:57,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:35:57,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:35:57,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:35:57,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:35:57,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:35:57,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:35:57,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:35:57,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:35:57,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:35:57,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:35:57,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:35:57,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:35:57,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:35:57,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:35:57,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:35:57,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:35:57,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:35:57,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:35:57,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:35:57,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:35:57,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:35:57,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:35:57,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:35:57,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:35:57,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:35:57,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:35:57,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:35:57,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:35:57,466 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 02:35:57,512 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:35:57,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:35:57,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:35:57,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:35:57,514 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:35:57,514 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:35:57,514 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:35:57,515 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:35:57,515 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:35:57,515 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:35:57,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:35:57,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:35:57,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:35:57,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:35:57,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:35:57,518 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:35:57,519 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:35:57,519 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:35:57,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:35:57,519 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:35:57,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:35:57,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:35:57,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:35:57,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:35:57,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:35:57,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:35:57,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:35:57,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:35:57,521 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:35:57,521 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:35:57,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:35:57,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:35:57,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:35:57,522 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a4efb80f78cf6db9ac1c2540f0e3afbb357842376bf73c44e7e4fa9311ea9dc [2021-11-13 02:35:57,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:35:57,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:35:57,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:35:57,903 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:35:57,903 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:35:57,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i [2021-11-13 02:35:57,976 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/data/3c76c23dc/76fe0d03e95447a3861a07e827a05cd8/FLAG44c1591f9 [2021-11-13 02:35:59,277 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:35:59,277 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i [2021-11-13 02:35:59,335 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/data/3c76c23dc/76fe0d03e95447a3861a07e827a05cd8/FLAG44c1591f9 [2021-11-13 02:35:59,401 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/data/3c76c23dc/76fe0d03e95447a3861a07e827a05cd8 [2021-11-13 02:35:59,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:35:59,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:35:59,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:35:59,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:35:59,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:35:59,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:35:59" (1/1) ... [2021-11-13 02:35:59,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@728da16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:35:59, skipping insertion in model container [2021-11-13 02:35:59,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:35:59" (1/1) ... [2021-11-13 02:35:59,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:35:59,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:36:03,017 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[508948,508961] [2021-11-13 02:36:03,020 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[509114,509127] [2021-11-13 02:36:03,020 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[509278,509291] [2021-11-13 02:36:03,021 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[509443,509456] [2021-11-13 02:36:03,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:36:03,103 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:36:03,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:36:03,915 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[508948,508961] [2021-11-13 02:36:03,916 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[509114,509127] [2021-11-13 02:36:03,917 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[509278,509291] [2021-11-13 02:36:03,917 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[509443,509456] [2021-11-13 02:36:03,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:36:03,942 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:36:04,697 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[508948,508961] [2021-11-13 02:36:04,697 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[509114,509127] [2021-11-13 02:36:04,698 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[509278,509291] [2021-11-13 02:36:04,698 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_934b3b50-2831-47d9-a30b-60ef6b3097c0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i[509443,509456] [2021-11-13 02:36:04,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:36:04,982 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:36:04,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:04 WrapperNode [2021-11-13 02:36:04,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:36:04,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:36:04,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:36:04,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:36:04,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:04" (1/1) ... [2021-11-13 02:36:05,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:04" (1/1) ... [2021-11-13 02:36:05,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:36:05,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:36:05,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:36:05,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:36:05,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:04" (1/1) ... [2021-11-13 02:36:05,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:04" (1/1) ... [2021-11-13 02:36:05,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:04" (1/1) ... [2021-11-13 02:36:05,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:04" (1/1) ... [2021-11-13 02:36:05,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:04" (1/1) ... [2021-11-13 02:36:05,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:04" (1/1) ... [2021-11-13 02:36:05,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:04" (1/1) ... [2021-11-13 02:36:05,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:36:06,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:36:06,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:36:06,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:36:06,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:04" (1/1) ... [2021-11-13 02:36:06,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:36:06,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:36:06,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:36:06,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:36:06,119 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-13 02:36:06,119 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-13 02:36:06,120 INFO L130 BoogieDeclarations]: Found specification of procedure to_sd [2021-11-13 02:36:06,120 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sd [2021-11-13 02:36:06,120 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_tuner [2021-11-13 02:36:06,120 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_tuner [2021-11-13 02:36:06,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 02:36:06,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 02:36:06,121 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_g_ctrl [2021-11-13 02:36:06,121 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_g_ctrl [2021-11-13 02:36:06,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 02:36:06,121 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_tx_s_parameters [2021-11-13 02:36:06,121 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_tx_s_parameters [2021-11-13 02:36:06,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 02:36:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 02:36:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 02:36:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 02:36:06,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 02:36:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure input_change [2021-11-13 02:36:06,122 INFO L138 BoogieDeclarations]: Found implementation of procedure input_change [2021-11-13 02:36:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_tx_g_parameters [2021-11-13 02:36:06,123 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_tx_g_parameters [2021-11-13 02:36:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_querymenu [2021-11-13 02:36:06,123 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_querymenu [2021-11-13 02:36:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-13 02:36:06,123 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-13 02:36:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_probe [2021-11-13 02:36:06,124 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_probe [2021-11-13 02:36:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 02:36:06,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 02:36:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-13 02:36:06,125 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-13 02:36:06,125 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_rx_shutdown [2021-11-13 02:36:06,125 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_rx_shutdown [2021-11-13 02:36:06,125 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx2388x [2021-11-13 02:36:06,126 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx2388x [2021-11-13 02:36:06,126 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_tuner [2021-11-13 02:36:06,126 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_tuner [2021-11-13 02:36:06,126 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx2583x [2021-11-13 02:36:06,126 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx2583x [2021-11-13 02:36:06,126 INFO L130 BoogieDeclarations]: Found specification of procedure to_ir_state [2021-11-13 02:36:06,127 INFO L138 BoogieDeclarations]: Found implementation of procedure to_ir_state [2021-11-13 02:36:06,127 INFO L130 BoogieDeclarations]: Found specification of procedure control_tx_enable [2021-11-13 02:36:06,128 INFO L138 BoogieDeclarations]: Found implementation of procedure control_tx_enable [2021-11-13 02:36:06,128 INFO L130 BoogieDeclarations]: Found specification of procedure pulse_width_count_to_ns [2021-11-13 02:36:06,129 INFO L138 BoogieDeclarations]: Found implementation of procedure pulse_width_count_to_ns [2021-11-13 02:36:06,129 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-13 02:36:06,129 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-13 02:36:06,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 02:36:06,129 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 02:36:06,130 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_freq_to_clock_divider [2021-11-13 02:36:06,130 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_freq_to_clock_divider [2021-11-13 02:36:06,130 INFO L130 BoogieDeclarations]: Found specification of procedure control_rx_demodulation_enable [2021-11-13 02:36:06,131 INFO L138 BoogieDeclarations]: Found implementation of procedure control_rx_demodulation_enable [2021-11-13 02:36:06,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-13 02:36:06,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-13 02:36:06,131 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 02:36:06,131 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 02:36:06,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:36:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-13 02:36:06,132 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-13 02:36:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_write [2021-11-13 02:36:06,133 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_write [2021-11-13 02:36:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:36:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_mbus_fmt [2021-11-13 02:36:06,133 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_mbus_fmt [2021-11-13 02:36:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 02:36:06,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 02:36:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2021-11-13 02:36:06,134 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2021-11-13 02:36:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2021-11-13 02:36:06,134 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2021-11-13 02:36:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 02:36:06,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 02:36:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-13 02:36:06,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-13 02:36:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 02:36:06,136 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 02:36:06,136 INFO L130 BoogieDeclarations]: Found specification of procedure set_volume [2021-11-13 02:36:06,136 INFO L138 BoogieDeclarations]: Found implementation of procedure set_volume [2021-11-13 02:36:06,136 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_sliced_fmt [2021-11-13 02:36:06,136 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_sliced_fmt [2021-11-13 02:36:06,137 INFO L130 BoogieDeclarations]: Found specification of procedure cx231xx_initialize [2021-11-13 02:36:06,137 INFO L138 BoogieDeclarations]: Found implementation of procedure cx231xx_initialize [2021-11-13 02:36:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 02:36:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_g_ext_ctrls [2021-11-13 02:36:06,138 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_g_ext_ctrls [2021-11-13 02:36:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 02:36:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 02:36:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:36:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 02:36:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:36:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:36:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:36:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-13 02:36:06,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-13 02:36:06,140 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-13 02:36:06,140 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-13 02:36:06,140 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-11-13 02:36:06,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-11-13 02:36:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 02:36:06,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 02:36:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure clock_divider_to_resolution [2021-11-13 02:36:06,142 INFO L138 BoogieDeclarations]: Found implementation of procedure clock_divider_to_resolution [2021-11-13 02:36:06,143 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-13 02:36:06,146 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-13 02:36:06,146 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_try_ext_ctrls [2021-11-13 02:36:06,146 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_try_ext_ctrls [2021-11-13 02:36:06,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_rx_params_lock_of_cx25840_ir_state [2021-11-13 02:36:06,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_rx_params_lock_of_cx25840_ir_state [2021-11-13 02:36:06,147 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-13 02:36:06,147 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-13 02:36:06,148 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata___0 [2021-11-13 02:36:06,148 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata___0 [2021-11-13 02:36:06,155 INFO L130 BoogieDeclarations]: Found specification of procedure cx25836_initialize [2021-11-13 02:36:06,155 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25836_initialize [2021-11-13 02:36:06,156 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_write4 [2021-11-13 02:36:06,156 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_write4 [2021-11-13 02:36:06,156 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_s_ext_ctrls [2021-11-13 02:36:06,156 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_s_ext_ctrls [2021-11-13 02:36:06,156 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_frequency [2021-11-13 02:36:06,156 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_frequency [2021-11-13 02:36:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 02:36:06,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 02:36:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_std_setup [2021-11-13 02:36:06,157 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_std_setup [2021-11-13 02:36:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-13 02:36:06,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-13 02:36:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure irqenable_tx [2021-11-13 02:36:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure irqenable_tx [2021-11-13 02:36:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2021-11-13 02:36:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2021-11-13 02:36:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_queryctrl [2021-11-13 02:36:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_queryctrl [2021-11-13 02:36:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 02:36:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 02:36:06,159 INFO L130 BoogieDeclarations]: Found specification of procedure control_tx_modulation_enable [2021-11-13 02:36:06,159 INFO L138 BoogieDeclarations]: Found implementation of procedure control_tx_modulation_enable [2021-11-13 02:36:06,159 INFO L130 BoogieDeclarations]: Found specification of procedure cx23885_initialize [2021-11-13 02:36:06,159 INFO L138 BoogieDeclarations]: Found implementation of procedure cx23885_initialize [2021-11-13 02:36:06,159 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_raw_fmt [2021-11-13 02:36:06,159 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_raw_fmt [2021-11-13 02:36:06,159 INFO L130 BoogieDeclarations]: Found specification of procedure clock_divider_to_freq [2021-11-13 02:36:06,160 INFO L138 BoogieDeclarations]: Found implementation of procedure clock_divider_to_freq [2021-11-13 02:36:06,160 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_std [2021-11-13 02:36:06,160 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_std [2021-11-13 02:36:06,160 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_and_or [2021-11-13 02:36:06,160 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_and_or [2021-11-13 02:36:06,160 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_s_ctrl [2021-11-13 02:36:06,160 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_s_ctrl [2021-11-13 02:36:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-13 02:36:06,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-13 02:36:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_rx_s_parameters [2021-11-13 02:36:06,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_rx_s_parameters [2021-11-13 02:36:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure to_state [2021-11-13 02:36:06,161 INFO L138 BoogieDeclarations]: Found implementation of procedure to_state [2021-11-13 02:36:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure set_audclk_freq [2021-11-13 02:36:06,161 INFO L138 BoogieDeclarations]: Found implementation of procedure set_audclk_freq [2021-11-13 02:36:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_register [2021-11-13 02:36:06,162 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_register [2021-11-13 02:36:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_register [2021-11-13 02:36:06,162 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_register [2021-11-13 02:36:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure set_input [2021-11-13 02:36:06,163 INFO L138 BoogieDeclarations]: Found implementation of procedure set_input [2021-11-13 02:36:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_rx_g_parameters [2021-11-13 02:36:06,163 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_rx_g_parameters [2021-11-13 02:36:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 02:36:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 02:36:06,163 INFO L130 BoogieDeclarations]: Found specification of procedure cx23888_std_setup [2021-11-13 02:36:06,164 INFO L138 BoogieDeclarations]: Found implementation of procedure cx23888_std_setup [2021-11-13 02:36:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 02:36:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_initialize [2021-11-13 02:36:06,164 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_initialize [2021-11-13 02:36:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-11-13 02:36:06,164 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-11-13 02:36:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 02:36:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-13 02:36:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-13 02:36:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tx_params_lock_of_cx25840_ir_state [2021-11-13 02:36:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tx_params_lock_of_cx25840_ir_state [2021-11-13 02:36:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure irqenable_rx [2021-11-13 02:36:06,167 INFO L138 BoogieDeclarations]: Found implementation of procedure irqenable_rx [2021-11-13 02:36:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_and_or4 [2021-11-13 02:36:06,167 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_and_or4 [2021-11-13 02:36:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_tx_params_lock_of_cx25840_ir_state [2021-11-13 02:36:06,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_tx_params_lock_of_cx25840_ir_state [2021-11-13 02:36:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_input_status [2021-11-13 02:36:06,168 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_input_status [2021-11-13 02:36:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure lpf_count_to_ns [2021-11-13 02:36:06,168 INFO L138 BoogieDeclarations]: Found implementation of procedure lpf_count_to_ns [2021-11-13 02:36:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_set_audclk_freq [2021-11-13 02:36:06,168 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_set_audclk_freq [2021-11-13 02:36:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_read [2021-11-13 02:36:06,168 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_read [2021-11-13 02:36:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:36:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure pulse_width_count_to_us [2021-11-13 02:36:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pulse_width_count_to_us [2021-11-13 02:36:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 02:36:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 02:36:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 02:36:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 02:36:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:36:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 02:36:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_sliced_fmt [2021-11-13 02:36:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_sliced_fmt [2021-11-13 02:36:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_master_send [2021-11-13 02:36:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_master_send [2021-11-13 02:36:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 02:36:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 02:36:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2021-11-13 02:36:06,171 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2021-11-13 02:36:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 02:36:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_decode_vbi_line [2021-11-13 02:36:06,171 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_decode_vbi_line [2021-11-13 02:36:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_adapter_id [2021-11-13 02:36:06,171 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_adapter_id [2021-11-13 02:36:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure clock_divider_to_carrier_freq [2021-11-13 02:36:06,172 INFO L138 BoogieDeclarations]: Found implementation of procedure clock_divider_to_carrier_freq [2021-11-13 02:36:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure pulse_clocks_to_clock_divider [2021-11-13 02:36:06,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pulse_clocks_to_clock_divider [2021-11-13 02:36:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx231xx [2021-11-13 02:36:06,172 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx231xx [2021-11-13 02:36:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 02:36:06,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 02:36:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure control_rx_s_edge_detection [2021-11-13 02:36:06,173 INFO L138 BoogieDeclarations]: Found implementation of procedure control_rx_s_edge_detection [2021-11-13 02:36:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-11-13 02:36:06,173 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-11-13 02:36:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_probe [2021-11-13 02:36:06,173 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_probe [2021-11-13 02:36:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-13 02:36:06,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-13 02:36:06,178 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-11-13 02:36:06,178 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-11-13 02:36:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_read4 [2021-11-13 02:36:06,179 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_read4 [2021-11-13 02:36:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure odd_parity [2021-11-13 02:36:06,179 INFO L138 BoogieDeclarations]: Found implementation of procedure odd_parity [2021-11-13 02:36:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure control_rx_enable [2021-11-13 02:36:06,179 INFO L138 BoogieDeclarations]: Found implementation of procedure control_rx_enable [2021-11-13 02:36:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-13 02:36:06,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-13 02:36:06,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_rx_params_lock_of_cx25840_ir_state [2021-11-13 02:36:06,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_rx_params_lock_of_cx25840_ir_state [2021-11-13 02:36:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure filter_rx_s_min_width [2021-11-13 02:36:06,181 INFO L138 BoogieDeclarations]: Found implementation of procedure filter_rx_s_min_width [2021-11-13 02:36:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 02:36:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_tx_shutdown [2021-11-13 02:36:06,181 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_tx_shutdown [2021-11-13 02:36:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-13 02:36:06,181 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-13 02:36:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 02:36:06,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 02:36:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~TO~VOID [2021-11-13 02:36:06,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~TO~VOID [2021-11-13 02:36:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-13 02:36:06,182 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-13 02:36:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx23885 [2021-11-13 02:36:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx23885 [2021-11-13 02:36:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:36:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:36:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_pulse_clocks [2021-11-13 02:36:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_pulse_clocks [2021-11-13 02:36:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx23888 [2021-11-13 02:36:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx23888 [2021-11-13 02:36:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx23887 [2021-11-13 02:36:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx23887 [2021-11-13 02:36:11,456 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 02:40:49,222 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:40:49,222 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 02:40:49,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:40:49 BoogieIcfgContainer [2021-11-13 02:40:49,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:40:49,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:40:49,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:40:49,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:40:49,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:35:59" (1/3) ... [2021-11-13 02:40:49,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8b4b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:40:49, skipping insertion in model container [2021-11-13 02:40:49,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:04" (2/3) ... [2021-11-13 02:40:49,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8b4b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:40:49, skipping insertion in model container [2021-11-13 02:40:49,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:40:49" (3/3) ... [2021-11-13 02:40:49,243 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-mutex_drivers-media-i2c-cx25840-cx25840.cil.i [2021-11-13 02:40:49,250 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:40:49,250 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-13 02:40:49,347 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:40:49,355 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 [2021-11-13 02:40:49,355 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-13 02:40:49,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 8449 states, 4846 states have (on average 1.1568303755674783) internal successors, (5606), 4873 states have internal predecessors, (5606), 3481 states have call successors, (3481), 119 states have call predecessors, (3481), 118 states have return successors, (3478), 3466 states have call predecessors, (3478), 3478 states have call successors, (3478) [2021-11-13 02:40:49,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-13 02:40:49,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:49,570 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-13 02:40:49,571 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)] === [2021-11-13 02:40:49,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:49,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2107106722, now seen corresponding path program 1 times [2021-11-13 02:40:49,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:40:49,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634808800] [2021-11-13 02:40:49,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:49,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:40:49,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:40:49,617 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:40:49,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:41:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:10,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 2362 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:41:10,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:12,228 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 02:41:12,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:13,314 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 02:41:13,315 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:13,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634808800] [2021-11-13 02:41:13,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1634808800] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:13,316 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:13,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 02:41:13,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037793183] [2021-11-13 02:41:13,319 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:13,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:41:13,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:13,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:41:13,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:41:13,408 INFO L87 Difference]: Start difference. First operand has 8449 states, 4846 states have (on average 1.1568303755674783) internal successors, (5606), 4873 states have internal predecessors, (5606), 3481 states have call successors, (3481), 119 states have call predecessors, (3481), 118 states have return successors, (3478), 3466 states have call predecessors, (3478), 3478 states have call successors, (3478) Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 02:41:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:16,374 INFO L93 Difference]: Finished difference Result 16874 states and 25149 transitions. [2021-11-13 02:41:16,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:41:16,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 48 [2021-11-13 02:41:16,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:16,532 INFO L225 Difference]: With dead ends: 16874 [2021-11-13 02:41:16,532 INFO L226 Difference]: Without dead ends: 8441 [2021-11-13 02:41:16,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:41:16,652 INFO L933 BasicCegarLoop]: 12551 mSDtfsCounter, 12523 mSDsluCounter, 37642 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 946.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12529 SdHoareTripleChecker+Valid, 50193 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 229.99ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 974.60ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:16,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12529 Valid, 50193 Invalid, 23 Unknown, 0 Unchecked, 229.99ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 974.60ms Time] [2021-11-13 02:41:16,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8441 states. [2021-11-13 02:41:22,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8441 to 8441. [2021-11-13 02:41:22,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8441 states, 4842 states have (on average 1.1551011978521273) internal successors, (5593), 4868 states have internal predecessors, (5593), 3478 states have call successors, (3478), 119 states have call predecessors, (3478), 118 states have return successors, (3475), 3463 states have call predecessors, (3475), 3475 states have call successors, (3475) [2021-11-13 02:41:22,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8441 states to 8441 states and 12546 transitions. [2021-11-13 02:41:22,502 INFO L78 Accepts]: Start accepts. Automaton has 8441 states and 12546 transitions. Word has length 48 [2021-11-13 02:41:22,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:22,503 INFO L470 AbstractCegarLoop]: Abstraction has 8441 states and 12546 transitions. [2021-11-13 02:41:22,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 02:41:22,504 INFO L276 IsEmpty]: Start isEmpty. Operand 8441 states and 12546 transitions. [2021-11-13 02:41:22,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-13 02:41:22,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:22,508 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:22,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:22,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:22,733 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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)] === [2021-11-13 02:41:22,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:22,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1256060321, now seen corresponding path program 1 times [2021-11-13 02:41:22,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:22,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013144270] [2021-11-13 02:41:22,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:22,756 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:22,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:22,758 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:22,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:41:42,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:43,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 2369 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:41:43,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:44,613 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 02:41:44,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:45,497 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 02:41:45,498 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:45,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013144270] [2021-11-13 02:41:45,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2013144270] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:41:45,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:41:45,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-13 02:41:45,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589350739] [2021-11-13 02:41:45,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:45,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:41:45,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:45,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:41:45,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:41:45,507 INFO L87 Difference]: Start difference. First operand 8441 states and 12546 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-13 02:41:47,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:47,513 INFO L93 Difference]: Finished difference Result 8447 states and 12551 transitions. [2021-11-13 02:41:47,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:41:47,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2021-11-13 02:41:47,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:47,611 INFO L225 Difference]: With dead ends: 8447 [2021-11-13 02:41:47,611 INFO L226 Difference]: Without dead ends: 8445 [2021-11-13 02:41:47,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:41:47,627 INFO L933 BasicCegarLoop]: 12543 mSDtfsCounter, 12521 mSDsluCounter, 25073 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 640.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12525 SdHoareTripleChecker+Valid, 37616 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 204.99ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 763.66ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:47,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12525 Valid, 37616 Invalid, 15 Unknown, 0 Unchecked, 204.99ms Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 763.66ms Time] [2021-11-13 02:41:47,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8445 states. [2021-11-13 02:41:51,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8445 to 8445. [2021-11-13 02:41:51,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8445 states, 4845 states have (on average 1.1550051599587203) internal successors, (5596), 4871 states have internal predecessors, (5596), 3478 states have call successors, (3478), 120 states have call predecessors, (3478), 119 states have return successors, (3475), 3463 states have call predecessors, (3475), 3475 states have call successors, (3475) [2021-11-13 02:41:51,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8445 states to 8445 states and 12549 transitions. [2021-11-13 02:41:51,819 INFO L78 Accepts]: Start accepts. Automaton has 8445 states and 12549 transitions. Word has length 53 [2021-11-13 02:41:51,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:51,820 INFO L470 AbstractCegarLoop]: Abstraction has 8445 states and 12549 transitions. [2021-11-13 02:41:51,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-13 02:41:51,821 INFO L276 IsEmpty]: Start isEmpty. Operand 8445 states and 12549 transitions. [2021-11-13 02:41:51,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-13 02:41:51,832 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:51,833 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:51,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:52,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:52,057 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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)] === [2021-11-13 02:41:52,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:52,058 INFO L85 PathProgramCache]: Analyzing trace with hash -621802818, now seen corresponding path program 1 times [2021-11-13 02:41:52,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:52,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868985416] [2021-11-13 02:41:52,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:52,072 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:52,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:52,074 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:52,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:42:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:10,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 2376 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:42:10,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:11,932 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-13 02:42:11,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-13 02:42:12,876 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:42:12,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868985416] [2021-11-13 02:42:12,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868985416] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:42:12,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:42:12,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-13 02:42:12,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153824371] [2021-11-13 02:42:12,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:42:12,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:42:12,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:42:12,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:42:12,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:42:12,879 INFO L87 Difference]: Start difference. First operand 8445 states and 12549 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-13 02:42:14,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:42:14,739 INFO L93 Difference]: Finished difference Result 8451 states and 12554 transitions. [2021-11-13 02:42:14,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:42:14,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2021-11-13 02:42:14,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:42:14,845 INFO L225 Difference]: With dead ends: 8451 [2021-11-13 02:42:14,845 INFO L226 Difference]: Without dead ends: 8449 [2021-11-13 02:42:14,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:42:14,860 INFO L933 BasicCegarLoop]: 12543 mSDtfsCounter, 12521 mSDsluCounter, 25073 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 677.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12524 SdHoareTripleChecker+Valid, 37616 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 92.23ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 803.31ms IncrementalHoareTripleChecker+Time [2021-11-13 02:42:14,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12524 Valid, 37616 Invalid, 15 Unknown, 0 Unchecked, 92.23ms Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 803.31ms Time] [2021-11-13 02:42:14,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8449 states. [2021-11-13 02:42:18,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8449 to 8449. [2021-11-13 02:42:18,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8449 states, 4848 states have (on average 1.1549092409240924) internal successors, (5599), 4874 states have internal predecessors, (5599), 3478 states have call successors, (3478), 121 states have call predecessors, (3478), 120 states have return successors, (3475), 3463 states have call predecessors, (3475), 3475 states have call successors, (3475) [2021-11-13 02:42:18,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8449 states to 8449 states and 12552 transitions. [2021-11-13 02:42:18,595 INFO L78 Accepts]: Start accepts. Automaton has 8449 states and 12552 transitions. Word has length 58 [2021-11-13 02:42:18,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:42:18,597 INFO L470 AbstractCegarLoop]: Abstraction has 8449 states and 12552 transitions. [2021-11-13 02:42:18,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-13 02:42:18,597 INFO L276 IsEmpty]: Start isEmpty. Operand 8449 states and 12552 transitions. [2021-11-13 02:42:18,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-13 02:42:18,600 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:42:18,600 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2021-11-13 02:42:18,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:18,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:42:18,801 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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)] === [2021-11-13 02:42:18,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:42:18,802 INFO L85 PathProgramCache]: Analyzing trace with hash -937720449, now seen corresponding path program 1 times [2021-11-13 02:42:18,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:42:18,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671031603] [2021-11-13 02:42:18,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:18,817 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:42:18,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:42:18,819 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:42:18,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:42:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:36,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 2383 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:42:36,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:38,705 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:42:38,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:39,639 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:42:39,639 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:42:39,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671031603] [2021-11-13 02:42:39,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671031603] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:42:39,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:42:39,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-13 02:42:39,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641758304] [2021-11-13 02:42:39,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:42:39,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:42:39,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:42:39,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:42:39,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:42:39,642 INFO L87 Difference]: Start difference. First operand 8449 states and 12552 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 02:42:41,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:42:41,299 INFO L93 Difference]: Finished difference Result 8455 states and 12557 transitions. [2021-11-13 02:42:41,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:42:41,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2021-11-13 02:42:41,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:42:41,465 INFO L225 Difference]: With dead ends: 8455 [2021-11-13 02:42:41,465 INFO L226 Difference]: Without dead ends: 8453 [2021-11-13 02:42:41,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:42:41,471 INFO L933 BasicCegarLoop]: 12543 mSDtfsCounter, 12521 mSDsluCounter, 25073 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 611.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12523 SdHoareTripleChecker+Valid, 37616 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 83.63ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 714.65ms IncrementalHoareTripleChecker+Time [2021-11-13 02:42:41,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12523 Valid, 37616 Invalid, 15 Unknown, 0 Unchecked, 83.63ms Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 714.65ms Time] [2021-11-13 02:42:41,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8453 states. [2021-11-13 02:42:45,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8453 to 8453. [2021-11-13 02:42:45,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8453 states, 4851 states have (on average 1.1548134405277262) internal successors, (5602), 4877 states have internal predecessors, (5602), 3478 states have call successors, (3478), 122 states have call predecessors, (3478), 121 states have return successors, (3475), 3463 states have call predecessors, (3475), 3475 states have call successors, (3475) [2021-11-13 02:42:45,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8453 states to 8453 states and 12555 transitions. [2021-11-13 02:42:45,505 INFO L78 Accepts]: Start accepts. Automaton has 8453 states and 12555 transitions. Word has length 63 [2021-11-13 02:42:45,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:42:45,506 INFO L470 AbstractCegarLoop]: Abstraction has 8453 states and 12555 transitions. [2021-11-13 02:42:45,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 02:42:45,506 INFO L276 IsEmpty]: Start isEmpty. Operand 8453 states and 12555 transitions. [2021-11-13 02:42:45,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-13 02:42:45,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:42:45,512 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2021-11-13 02:42:45,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:45,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:42:45,737 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)] === [2021-11-13 02:42:45,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:42:45,737 INFO L85 PathProgramCache]: Analyzing trace with hash -696208610, now seen corresponding path program 1 times [2021-11-13 02:42:45,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:42:45,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538055748] [2021-11-13 02:42:45,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:45,750 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:42:45,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:42:45,751 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:42:45,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:43:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:43:04,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 2390 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:43:04,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:43:06,091 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-13 02:43:06,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:43:07,078 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-13 02:43:07,078 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:43:07,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538055748] [2021-11-13 02:43:07,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538055748] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:43:07,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:43:07,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-13 02:43:07,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656288005] [2021-11-13 02:43:07,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:43:07,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:43:07,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:43:07,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:43:07,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:43:07,082 INFO L87 Difference]: Start difference. First operand 8453 states and 12555 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-13 02:43:08,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:43:08,826 INFO L93 Difference]: Finished difference Result 8548 states and 12641 transitions. [2021-11-13 02:43:08,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:43:08,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2021-11-13 02:43:08,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:43:08,888 INFO L225 Difference]: With dead ends: 8548 [2021-11-13 02:43:08,888 INFO L226 Difference]: Without dead ends: 8544 [2021-11-13 02:43:08,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:43:08,898 INFO L933 BasicCegarLoop]: 12560 mSDtfsCounter, 12351 mSDsluCounter, 25356 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 659.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12352 SdHoareTripleChecker+Valid, 37916 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 85.59ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 762.75ms IncrementalHoareTripleChecker+Time [2021-11-13 02:43:08,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12352 Valid, 37916 Invalid, 17 Unknown, 0 Unchecked, 85.59ms Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 762.75ms Time] [2021-11-13 02:43:08,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8544 states. [2021-11-13 02:43:16,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8544 to 8542. [2021-11-13 02:43:16,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8542 states, 4915 states have (on average 1.1546286876907426) internal successors, (5675), 4940 states have internal predecessors, (5675), 3482 states have call successors, (3482), 144 states have call predecessors, (3482), 142 states have return successors, (3479), 3467 states have call predecessors, (3479), 3479 states have call successors, (3479) [2021-11-13 02:43:16,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8542 states to 8542 states and 12636 transitions. [2021-11-13 02:43:16,212 INFO L78 Accepts]: Start accepts. Automaton has 8542 states and 12636 transitions. Word has length 68 [2021-11-13 02:43:16,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:43:16,213 INFO L470 AbstractCegarLoop]: Abstraction has 8542 states and 12636 transitions. [2021-11-13 02:43:16,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-13 02:43:16,214 INFO L276 IsEmpty]: Start isEmpty. Operand 8542 states and 12636 transitions. [2021-11-13 02:43:16,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-13 02:43:16,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:43:16,215 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:43:16,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:43:16,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:43:16,437 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)] === [2021-11-13 02:43:16,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:43:16,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1235611359, now seen corresponding path program 1 times [2021-11-13 02:43:16,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:43:16,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635259273] [2021-11-13 02:43:16,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:43:16,450 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:43:16,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:43:16,451 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:43:16,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:43:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:43:35,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 2417 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-13 02:43:35,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:43:38,744 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-13 02:43:38,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:43:42,384 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-13 02:43:42,384 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:43:42,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635259273] [2021-11-13 02:43:42,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635259273] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:43:42,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1448822624] [2021-11-13 02:43:42,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:43:42,385 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:43:42,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:43:42,387 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:43:42,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-13 02:43:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:43:47,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 2417 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:43:47,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:43:50,629 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-11-13 02:43:50,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:43:52,648 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-11-13 02:43:52,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1448822624] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:43:52,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-13 02:43:52,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15, 15, 5] total 23 [2021-11-13 02:43:52,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299548480] [2021-11-13 02:43:52,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:43:52,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:43:52,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:43:52,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:43:52,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-13 02:43:52,651 INFO L87 Difference]: Start difference. First operand 8542 states and 12636 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 02:43:55,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:43:55,097 INFO L93 Difference]: Finished difference Result 8599 states and 12693 transitions. [2021-11-13 02:43:55,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:43:55,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2021-11-13 02:43:55,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:43:55,167 INFO L225 Difference]: With dead ends: 8599 [2021-11-13 02:43:55,168 INFO L226 Difference]: Without dead ends: 8461 [2021-11-13 02:43:55,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-11-13 02:43:55,180 INFO L933 BasicCegarLoop]: 12615 mSDtfsCounter, 12397 mSDsluCounter, 25422 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 638.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12397 SdHoareTripleChecker+Valid, 38037 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 86.44ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 752.23ms IncrementalHoareTripleChecker+Time [2021-11-13 02:43:55,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12397 Valid, 38037 Invalid, 12 Unknown, 0 Unchecked, 86.44ms Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 752.23ms Time] [2021-11-13 02:43:55,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8461 states. [2021-11-13 02:44:03,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8461 to 8459. [2021-11-13 02:44:03,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8459 states, 4859 states have (on average 1.1535295328256843) internal successors, (5605), 4881 states have internal predecessors, (5605), 3452 states have call successors, (3452), 146 states have call predecessors, (3452), 146 states have return successors, (3452), 3440 states have call predecessors, (3452), 3452 states have call successors, (3452) [2021-11-13 02:44:03,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8459 states to 8459 states and 12509 transitions. [2021-11-13 02:44:03,528 INFO L78 Accepts]: Start accepts. Automaton has 8459 states and 12509 transitions. Word has length 83 [2021-11-13 02:44:03,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:44:03,529 INFO L470 AbstractCegarLoop]: Abstraction has 8459 states and 12509 transitions. [2021-11-13 02:44:03,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 02:44:03,530 INFO L276 IsEmpty]: Start isEmpty. Operand 8459 states and 12509 transitions. [2021-11-13 02:44:03,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-13 02:44:03,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:44:03,537 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:44:03,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 02:44:03,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-13 02:44:03,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:44:03,957 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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)] === [2021-11-13 02:44:03,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:44:03,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1943360141, now seen corresponding path program 1 times [2021-11-13 02:44:03,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:44:03,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807373213] [2021-11-13 02:44:03,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:44:03,975 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:44:03,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:44:03,977 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:44:04,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 02:44:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:44:25,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 2506 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-13 02:44:25,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:44:29,373 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 39 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-13 02:44:29,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:44:32,918 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-13 02:44:32,919 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:44:32,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807373213] [2021-11-13 02:44:32,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807373213] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:44:32,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [125787362] [2021-11-13 02:44:32,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:44:32,920 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:44:32,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:44:32,921 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:44:32,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-13 02:44:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:44:44,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 2506 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:44:44,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:44:48,543 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-13 02:44:48,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:44:50,680 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-13 02:44:50,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [125787362] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:44:50,680 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:44:50,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [15, 15] total 23 [2021-11-13 02:44:50,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547829326] [2021-11-13 02:44:50,681 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:44:50,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:44:50,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:44:50,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:44:50,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-13 02:44:50,683 INFO L87 Difference]: Start difference. First operand 8459 states and 12509 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-13 02:44:52,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:44:52,810 INFO L93 Difference]: Finished difference Result 8467 states and 12515 transitions. [2021-11-13 02:44:52,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:44:52,810 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 100 [2021-11-13 02:44:52,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:44:52,866 INFO L225 Difference]: With dead ends: 8467 [2021-11-13 02:44:52,867 INFO L226 Difference]: Without dead ends: 8465 [2021-11-13 02:44:52,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2021-11-13 02:44:52,877 INFO L933 BasicCegarLoop]: 12444 mSDtfsCounter, 12191 mSDsluCounter, 37531 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 647.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12193 SdHoareTripleChecker+Valid, 49975 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 64.18ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 658.66ms IncrementalHoareTripleChecker+Time [2021-11-13 02:44:52,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12193 Valid, 49975 Invalid, 17 Unknown, 0 Unchecked, 64.18ms Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 658.66ms Time] [2021-11-13 02:44:52,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8465 states. [2021-11-13 02:45:03,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8465 to 8463. [2021-11-13 02:45:03,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8463 states, 4862 states have (on average 1.1534348004936241) internal successors, (5608), 4884 states have internal predecessors, (5608), 3452 states have call successors, (3452), 147 states have call predecessors, (3452), 147 states have return successors, (3452), 3440 states have call predecessors, (3452), 3452 states have call successors, (3452) [2021-11-13 02:45:03,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8463 states to 8463 states and 12512 transitions. [2021-11-13 02:45:03,762 INFO L78 Accepts]: Start accepts. Automaton has 8463 states and 12512 transitions. Word has length 100 [2021-11-13 02:45:03,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:45:03,764 INFO L470 AbstractCegarLoop]: Abstraction has 8463 states and 12512 transitions. [2021-11-13 02:45:03,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-13 02:45:03,764 INFO L276 IsEmpty]: Start isEmpty. Operand 8463 states and 12512 transitions. [2021-11-13 02:45:03,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-13 02:45:03,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:45:03,775 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:45:03,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-13 02:45:04,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 02:45:04,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:45:04,194 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_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)] === [2021-11-13 02:45:04,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:45:04,194 INFO L85 PathProgramCache]: Analyzing trace with hash -418458860, now seen corresponding path program 1 times [2021-11-13 02:45:04,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:45:04,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403297993] [2021-11-13 02:45:04,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:45:04,205 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:45:04,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:45:04,206 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:45:04,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 02:45:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:45:25,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 2546 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-13 02:45:25,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:45:29,603 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 39 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-13 02:45:29,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:45:33,146 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-13 02:45:33,147 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:45:33,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403297993] [2021-11-13 02:45:33,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403297993] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:45:33,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [354118116] [2021-11-13 02:45:33,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:45:33,148 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:45:33,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:45:33,164 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:45:33,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-13 02:45:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:45:38,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 2546 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 02:45:38,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:45:40,367 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-13 02:45:40,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:45:42,426 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-13 02:45:42,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [354118116] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:45:42,426 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:45:42,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [15, 15] total 24 [2021-11-13 02:45:42,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202089610] [2021-11-13 02:45:42,427 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:45:42,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 02:45:42,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:45:42,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 02:45:42,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=500, Unknown=0, NotChecked=0, Total=552 [2021-11-13 02:45:42,429 INFO L87 Difference]: Start difference. First operand 8463 states and 12512 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-13 02:45:44,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:45:46,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:45:46,542 INFO L93 Difference]: Finished difference Result 8465 states and 12513 transitions. [2021-11-13 02:45:46,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:45:46,543 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 118 [2021-11-13 02:45:46,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:45:46,608 INFO L225 Difference]: With dead ends: 8465 [2021-11-13 02:45:46,608 INFO L226 Difference]: Without dead ends: 8463 [2021-11-13 02:45:46,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2021-11-13 02:45:46,620 INFO L933 BasicCegarLoop]: 12393 mSDtfsCounter, 197 mSDsluCounter, 61683 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2708.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 74076 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 94.12ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2833.12ms IncrementalHoareTripleChecker+Time [2021-11-13 02:45:46,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 74076 Invalid, 20 Unknown, 0 Unchecked, 94.12ms Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2833.12ms Time] [2021-11-13 02:45:46,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8463 states. [2021-11-13 02:45:56,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8463 to 8463. [2021-11-13 02:45:56,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8463 states, 4862 states have (on average 1.153229123817359) internal successors, (5607), 4884 states have internal predecessors, (5607), 3452 states have call successors, (3452), 147 states have call predecessors, (3452), 147 states have return successors, (3452), 3440 states have call predecessors, (3452), 3452 states have call successors, (3452) [2021-11-13 02:45:57,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8463 states to 8463 states and 12511 transitions. [2021-11-13 02:45:57,055 INFO L78 Accepts]: Start accepts. Automaton has 8463 states and 12511 transitions. Word has length 118 [2021-11-13 02:45:57,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:45:57,056 INFO L470 AbstractCegarLoop]: Abstraction has 8463 states and 12511 transitions. [2021-11-13 02:45:57,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-13 02:45:57,056 INFO L276 IsEmpty]: Start isEmpty. Operand 8463 states and 12511 transitions. [2021-11-13 02:45:57,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-13 02:45:57,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:45:57,062 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:45:57,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 02:45:57,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-13 02:45:57,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:45:57,485 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:45:57,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:45:57,486 INFO L85 PathProgramCache]: Analyzing trace with hash 803222968, now seen corresponding path program 1 times [2021-11-13 02:45:57,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:45:57,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544194370] [2021-11-13 02:45:57,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:45:57,493 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:45:57,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:45:57,495 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:45:57,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 02:46:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:46:19,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 2540 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-13 02:46:19,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:46:23,253 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 39 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-13 02:46:23,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:46:27,286 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-13 02:46:27,286 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:46:27,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544194370] [2021-11-13 02:46:27,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544194370] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:46:27,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1130671796] [2021-11-13 02:46:27,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:46:27,287 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:46:27,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:46:27,290 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:46:27,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-13 02:46:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:46:39,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 2540 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:46:39,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:46:44,288 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-13 02:46:44,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:46:46,946 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-13 02:46:46,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1130671796] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:46:46,946 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:46:46,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [15, 15] total 23 [2021-11-13 02:46:46,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369377668] [2021-11-13 02:46:46,947 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:46:46,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:46:46,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:46:46,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:46:46,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-13 02:46:46,949 INFO L87 Difference]: Start difference. First operand 8463 states and 12511 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-13 02:46:49,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:46:49,051 INFO L93 Difference]: Finished difference Result 8463 states and 12511 transitions. [2021-11-13 02:46:49,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:46:49,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 118 [2021-11-13 02:46:49,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:46:49,102 INFO L225 Difference]: With dead ends: 8463 [2021-11-13 02:46:49,102 INFO L226 Difference]: Without dead ends: 8461 [2021-11-13 02:46:49,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2021-11-13 02:46:49,113 INFO L933 BasicCegarLoop]: 12386 mSDtfsCounter, 12110 mSDsluCounter, 25014 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 596.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12112 SdHoareTripleChecker+Valid, 37400 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 55.27ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 699.98ms IncrementalHoareTripleChecker+Time [2021-11-13 02:46:49,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12112 Valid, 37400 Invalid, 13 Unknown, 0 Unchecked, 55.27ms Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 699.98ms Time] [2021-11-13 02:46:49,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8461 states. [2021-11-13 02:46:59,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8461 to 8461. [2021-11-13 02:46:59,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8461 states, 4861 states have (on average 1.1530549269697594) internal successors, (5605), 4882 states have internal predecessors, (5605), 3452 states have call successors, (3452), 147 states have call predecessors, (3452), 147 states have return successors, (3452), 3440 states have call predecessors, (3452), 3452 states have call successors, (3452) [2021-11-13 02:46:59,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8461 states to 8461 states and 12509 transitions. [2021-11-13 02:46:59,714 INFO L78 Accepts]: Start accepts. Automaton has 8461 states and 12509 transitions. Word has length 118 [2021-11-13 02:46:59,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:46:59,715 INFO L470 AbstractCegarLoop]: Abstraction has 8461 states and 12509 transitions. [2021-11-13 02:46:59,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-13 02:46:59,715 INFO L276 IsEmpty]: Start isEmpty. Operand 8461 states and 12509 transitions. [2021-11-13 02:46:59,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-13 02:46:59,723 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:46:59,723 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:46:59,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-11-13 02:47:00,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-13 02:47:00,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:47:00,124 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_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)] === [2021-11-13 02:47:00,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:47:00,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1923500854, now seen corresponding path program 1 times [2021-11-13 02:47:00,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:47:00,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297897822] [2021-11-13 02:47:00,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:47:00,132 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:47:00,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:47:00,132 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:47:00,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-13 02:47:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:47:21,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 2564 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-13 02:47:21,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:47:26,328 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 39 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-13 02:47:26,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:47:30,677 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-13 02:47:30,677 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:47:30,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297897822] [2021-11-13 02:47:30,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297897822] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:47:30,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [653768886] [2021-11-13 02:47:30,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:47:30,678 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:47:30,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:47:30,679 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:47:30,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-13 02:47:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:47:35,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 2564 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 02:47:35,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:47:38,212 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-13 02:47:38,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:47:40,587 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-13 02:47:40,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [653768886] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:47:40,587 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:47:40,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [15, 15] total 24 [2021-11-13 02:47:40,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251801119] [2021-11-13 02:47:40,588 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:47:40,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 02:47:40,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:47:40,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 02:47:40,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=500, Unknown=0, NotChecked=0, Total=552 [2021-11-13 02:47:40,589 INFO L87 Difference]: Start difference. First operand 8461 states and 12509 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-13 02:47:43,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:47:45,177 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:47:46,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:47:46,738 INFO L93 Difference]: Finished difference Result 8461 states and 12509 transitions. [2021-11-13 02:47:46,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:47:46,739 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 136 [2021-11-13 02:47:46,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:47:46,740 INFO L225 Difference]: With dead ends: 8461 [2021-11-13 02:47:46,740 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 02:47:46,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2021-11-13 02:47:46,810 INFO L933 BasicCegarLoop]: 12434 mSDtfsCounter, 249 mSDsluCounter, 49261 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4712.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 61695 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 73.41ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4878.86ms IncrementalHoareTripleChecker+Time [2021-11-13 02:47:46,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 61695 Invalid, 17 Unknown, 0 Unchecked, 73.41ms Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 2 Unknown, 0 Unchecked, 4878.86ms Time] [2021-11-13 02:47:46,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 02:47:46,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 02:47:46,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:47:46,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 02:47:46,816 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 136 [2021-11-13 02:47:46,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:47:46,816 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 02:47:46,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-13 02:47:46,817 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 02:47:46,817 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 02:47:46,820 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-13 02:47:46,821 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-13 02:47:46,821 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-13 02:47:46,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-13 02:47:47,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-13 02:47:47,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934b3b50-2831-47d9-a30b-60ef6b3097c0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:47:47,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.