./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs --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 84c3cd9f2d964ef70410e7a0d1394c510500a590ba49afbae062bd2d798f4c53 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:02:18,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:02:18,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:02:18,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:02:18,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:02:18,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:02:18,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:02:18,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:02:18,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:02:18,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:02:18,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:02:18,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:02:18,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:02:18,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:02:18,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:02:18,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:02:18,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:02:18,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:02:18,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:02:18,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:02:18,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:02:18,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:02:18,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:02:18,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:02:18,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:02:18,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:02:18,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:02:18,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:02:18,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:02:18,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:02:18,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:02:18,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:02:18,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:02:18,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:02:18,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:02:18,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:02:18,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:02:18,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:02:18,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:02:18,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:02:18,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:02:18,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:02:18,752 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:02:18,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:02:18,757 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:02:18,757 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:02:18,758 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:02:18,758 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:02:18,758 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:02:18,758 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:02:18,758 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:02:18,759 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:02:18,766 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:02:18,766 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:02:18,766 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:02:18,767 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:02:18,767 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:02:18,767 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:02:18,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:02:18,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:02:18,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:02:18,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:02:18,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:02:18,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:02:18,769 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:02:18,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:02:18,770 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:02:18,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:02:18,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:02:18,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:02:18,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:02:18,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:02:18,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:02:18,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:02:18,772 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:02:18,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:02:18,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:02:18,773 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:02:18,773 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:02:18,773 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_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84c3cd9f2d964ef70410e7a0d1394c510500a590ba49afbae062bd2d798f4c53 [2021-11-19 14:02:19,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:02:19,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:02:19,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:02:19,127 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:02:19,128 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:02:19,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i [2021-11-19 14:02:19,192 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/data/02f8cc504/ad9346a17778455086c8346cd347a597/FLAGe061b2cce [2021-11-19 14:02:20,258 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:02:20,258 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i [2021-11-19 14:02:20,330 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/data/02f8cc504/ad9346a17778455086c8346cd347a597/FLAGe061b2cce [2021-11-19 14:02:20,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/data/02f8cc504/ad9346a17778455086c8346cd347a597 [2021-11-19 14:02:20,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:02:20,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:02:20,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:02:20,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:02:20,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:02:20,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:02:20" (1/1) ... [2021-11-19 14:02:20,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca77557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:20, skipping insertion in model container [2021-11-19 14:02:20,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:02:20" (1/1) ... [2021-11-19 14:02:20,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:02:20,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:02:22,510 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:22,529 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:22,551 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:22,565 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:22,590 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:22,628 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:22,641 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:22,664 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:22,686 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,279 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,280 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,280 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,290 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,292 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,293 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,294 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,299 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,299 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,311 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,311 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,311 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,312 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,312 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,314 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,315 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,319 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,320 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,320 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,320 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,321 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,322 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,323 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,674 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,690 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,697 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,728 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,735 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,746 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,755 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,763 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,773 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,797 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,807 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,817 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,824 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,858 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,859 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,865 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,872 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,879 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,886 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,893 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,902 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,927 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,927 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,953 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,953 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,961 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,962 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,973 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,973 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,987 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:23,993 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,008 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,233 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,283 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,304 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,336 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,336 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,361 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,361 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,368 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,369 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,384 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,398 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,430 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,445 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,464 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,477 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:02:24,812 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[497885,497898] [2021-11-19 14:02:24,815 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[498051,498064] [2021-11-19 14:02:24,816 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[498215,498228] [2021-11-19 14:02:24,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[498380,498393] [2021-11-19 14:02:24,843 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:02:24,918 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) [2021-11-19 14:02:24,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6d945485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:24, skipping insertion in model container [2021-11-19 14:02:24,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:02:24,920 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:02:24,922 INFO L158 Benchmark]: Toolchain (without parser) took 4366.95ms. Allocated memory was 96.5MB in the beginning and 182.5MB in the end (delta: 86.0MB). Free memory was 56.7MB in the beginning and 94.8MB in the end (delta: -38.1MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2021-11-19 14:02:24,923 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 96.5MB. Free memory is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:02:24,924 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4364.34ms. Allocated memory was 96.5MB in the beginning and 182.5MB in the end (delta: 86.0MB). Free memory was 56.7MB in the beginning and 94.8MB in the end (delta: -38.1MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2021-11-19 14:02:24,926 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 96.5MB. Free memory is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4364.34ms. Allocated memory was 96.5MB in the beginning and 182.5MB in the end (delta: 86.0MB). Free memory was 56.7MB in the beginning and 94.8MB in the end (delta: -38.1MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5966]: 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_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs --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 84c3cd9f2d964ef70410e7a0d1394c510500a590ba49afbae062bd2d798f4c53 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:02:27,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:02:27,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:02:27,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:02:27,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:02:27,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:02:27,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:02:27,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:02:27,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:02:27,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:02:27,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:02:27,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:02:27,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:02:27,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:02:27,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:02:27,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:02:27,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:02:27,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:02:27,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:02:27,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:02:27,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:02:27,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:02:27,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:02:27,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:02:27,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:02:27,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:02:27,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:02:27,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:02:27,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:02:27,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:02:27,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:02:27,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:02:27,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:02:27,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:02:27,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:02:27,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:02:27,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:02:27,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:02:27,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:02:27,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:02:27,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:02:27,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:02:27,440 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:02:27,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:02:27,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:02:27,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:02:27,442 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:02:27,442 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:02:27,442 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:02:27,443 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:02:27,444 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:02:27,444 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:02:27,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:02:27,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:02:27,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:02:27,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:02:27,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:02:27,448 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:02:27,448 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:02:27,448 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:02:27,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:02:27,449 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:02:27,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:02:27,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:02:27,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:02:27,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:02:27,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:02:27,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:02:27,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:02:27,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:02:27,451 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:02:27,451 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:02:27,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:02:27,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:02:27,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:02:27,452 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_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84c3cd9f2d964ef70410e7a0d1394c510500a590ba49afbae062bd2d798f4c53 [2021-11-19 14:02:27,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:02:27,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:02:27,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:02:27,923 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:02:27,932 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:02:27,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i [2021-11-19 14:02:28,034 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/data/ebf8eb214/14919dfb411b43398a67dada655bb81e/FLAG2c170f141 [2021-11-19 14:02:29,270 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:02:29,270 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i [2021-11-19 14:02:29,344 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/data/ebf8eb214/14919dfb411b43398a67dada655bb81e/FLAG2c170f141 [2021-11-19 14:02:29,362 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/data/ebf8eb214/14919dfb411b43398a67dada655bb81e [2021-11-19 14:02:29,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:02:29,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:02:29,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:02:29,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:02:29,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:02:29,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:02:29" (1/1) ... [2021-11-19 14:02:29,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10de7b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:29, skipping insertion in model container [2021-11-19 14:02:29,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:02:29" (1/1) ... [2021-11-19 14:02:29,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:02:29,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:02:33,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[497885,497898] [2021-11-19 14:02:33,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[498051,498064] [2021-11-19 14:02:33,809 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[498215,498228] [2021-11-19 14:02:33,809 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[498380,498393] [2021-11-19 14:02:33,835 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:02:33,971 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:02:34,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:02:34,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[497885,497898] [2021-11-19 14:02:34,672 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[498051,498064] [2021-11-19 14:02:34,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[498215,498228] [2021-11-19 14:02:34,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[498380,498393] [2021-11-19 14:02:34,683 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:02:34,736 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:02:35,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[497885,497898] [2021-11-19 14:02:35,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[498051,498064] [2021-11-19 14:02:35,787 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[498215,498228] [2021-11-19 14:02:35,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i[498380,498393] [2021-11-19 14:02:35,799 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:02:36,127 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:02:36,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:36 WrapperNode [2021-11-19 14:02:36,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:02:36,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:02:36,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:02:36,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:02:36,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:36" (1/1) ... [2021-11-19 14:02:36,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:36" (1/1) ... [2021-11-19 14:02:36,755 INFO L137 Inliner]: procedures = 458, calls = 6501, calls flagged for inlining = 237, calls inlined = 218, statements flattened = 11448 [2021-11-19 14:02:36,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:02:36,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:02:36,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:02:36,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:02:36,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:36" (1/1) ... [2021-11-19 14:02:36,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:36" (1/1) ... [2021-11-19 14:02:36,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:36" (1/1) ... [2021-11-19 14:02:36,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:36" (1/1) ... [2021-11-19 14:02:37,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:36" (1/1) ... [2021-11-19 14:02:37,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:36" (1/1) ... [2021-11-19 14:02:37,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:36" (1/1) ... [2021-11-19 14:02:37,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:02:37,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:02:37,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:02:37,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:02:37,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:36" (1/1) ... [2021-11-19 14:02:37,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:02:37,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:02:37,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:02:37,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:02:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_streamoff [2021-11-19 14:02:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_streamoff [2021-11-19 14:02:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2021-11-19 14:02:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2021-11-19 14:02:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_reqbufs [2021-11-19 14:02:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_reqbufs [2021-11-19 14:02:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:02:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:02:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_cap [2021-11-19 14:02:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_cap [2021-11-19 14:02:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:02:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:02:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_fmt_vid_cap [2021-11-19 14:02:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_fmt_vid_cap [2021-11-19 14:02:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2021-11-19 14:02:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2021-11-19 14:02:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_set_window [2021-11-19 14:02:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_set_window [2021-11-19 14:02:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_res_get [2021-11-19 14:02:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_res_get [2021-11-19 14:02:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure video_end [2021-11-19 14:02:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure video_end [2021-11-19 14:02:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure arch_spin_is_locked [2021-11-19 14:02:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_spin_is_locked [2021-11-19 14:02:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2021-11-19 14:02:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2021-11-19 14:02:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_cap [2021-11-19 14:02:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_cap [2021-11-19 14:02:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 14:02:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 14:02:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_saa7146_vv_cleanup_module_9_2 [2021-11-19 14:02:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_saa7146_vv_cleanup_module_9_2 [2021-11-19 14:02:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_buffer_queue [2021-11-19 14:02:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_buffer_queue [2021-11-19 14:02:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure video_close [2021-11-19 14:02:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure video_close [2021-11-19 14:02:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_open [2021-11-19 14:02:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_open [2021-11-19 14:02:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_std [2021-11-19 14:02:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_std [2021-11-19 14:02:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_alloc [2021-11-19 14:02:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_alloc [2021-11-19 14:02:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:02:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:02:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2021-11-19 14:02:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2021-11-19 14:02:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:02:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:02:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_irq_done [2021-11-19 14:02:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_irq_done [2021-11-19 14:02:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2021-11-19 14:02:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2021-11-19 14:02:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2021-11-19 14:02:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2021-11-19 14:02:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:02:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:02:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querybuf [2021-11-19 14:02:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querybuf [2021-11-19 14:02:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-19 14:02:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-19 14:02:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-19 14:02:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-19 14:02:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-11-19 14:02:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-11-19 14:02:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:02:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_overlay [2021-11-19 14:02:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_overlay [2021-11-19 14:02:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_dqbuf [2021-11-19 14:02:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_dqbuf [2021-11-19 14:02:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:02:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure video_irq_done [2021-11-19 14:02:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure video_irq_done [2021-11-19 14:02:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:02:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-19 14:02:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-19 14:02:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:02:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 14:02:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 14:02:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_overlay [2021-11-19 14:02:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_overlay [2021-11-19 14:02:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_video_device [2021-11-19 14:02:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_video_device [2021-11-19 14:02:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2021-11-19 14:02:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2021-11-19 14:02:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-19 14:02:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-19 14:02:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:02:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:02:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure sort_and_eliminate [2021-11-19 14:02:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure sort_and_eliminate [2021-11-19 14:02:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2021-11-19 14:02:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2021-11-19 14:02:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_qbuf [2021-11-19 14:02:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_qbuf [2021-11-19 14:02:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:02:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:02:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure fops_read [2021-11-19 14:02:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_read [2021-11-19 14:02:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:02:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:02:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure release_all_pagetables [2021-11-19 14:02:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure release_all_pagetables [2021-11-19 14:02:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_buffer_finish [2021-11-19 14:02:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_buffer_finish [2021-11-19 14:02:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_set_output_format [2021-11-19 14:02:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_set_output_format [2021-11-19 14:02:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure video_read [2021-11-19 14:02:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure video_read [2021-11-19 14:02:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 14:02:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 14:02:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_stop [2021-11-19 14:02:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_stop [2021-11-19 14:02:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_res_free [2021-11-19 14:02:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_res_free [2021-11-19 14:02:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2021-11-19 14:02:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2021-11-19 14:02:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 14:02:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 14:02:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fbuf [2021-11-19 14:02:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fbuf [2021-11-19 14:02:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_free [2021-11-19 14:02:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_free [2021-11-19 14:02:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:02:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:02:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:02:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-19 14:02:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-19 14:02:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 14:02:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 14:02:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-19 14:02:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-19 14:02:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-19 14:02:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-19 14:02:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_sg_init [2021-11-19 14:02:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_sg_init [2021-11-19 14:02:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_build_single [2021-11-19 14:02:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_build_single [2021-11-19 14:02:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:02:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_s_ctrl [2021-11-19 14:02:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_s_ctrl [2021-11-19 14:02:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:02:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:02:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:02:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:02:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_queue [2021-11-19 14:02:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_queue [2021-11-19 14:02:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_video_device [2021-11-19 14:02:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_video_device [2021-11-19 14:02:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2021-11-19 14:02:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2021-11-19 14:02:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-19 14:02:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-19 14:02:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_streamon [2021-11-19 14:02:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_streamon [2021-11-19 14:02:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2021-11-19 14:02:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2021-11-19 14:02:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure video_init [2021-11-19 14:02:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure video_init [2021-11-19 14:02:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_overlay [2021-11-19 14:02:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_overlay [2021-11-19 14:02:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vbi_cap [2021-11-19 14:02:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vbi_cap [2021-11-19 14:02:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-19 14:02:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-19 14:02:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 14:02:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 14:02:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2021-11-19 14:02:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2021-11-19 14:02:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure fops_mmap [2021-11-19 14:02:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_mmap [2021-11-19 14:02:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:02:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:02:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_disable_clipping [2021-11-19 14:02:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_disable_clipping [2021-11-19 14:02:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:02:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_parm [2021-11-19 14:02:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_parm [2021-11-19 14:02:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:02:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:02:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:02:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:02:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:02:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_stop_preview [2021-11-19 14:02:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_stop_preview [2021-11-19 14:02:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-19 14:02:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-19 14:02:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure SAA7146_IER_ENABLE [2021-11-19 14:02:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure SAA7146_IER_ENABLE [2021-11-19 14:02:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure video_begin [2021-11-19 14:02:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure video_begin [2021-11-19 14:02:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure SAA7146_IER_DISABLE [2021-11-19 14:02:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure SAA7146_IER_DISABLE [2021-11-19 14:02:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure fops_open [2021-11-19 14:02:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_open [2021-11-19 14:02:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_init [2021-11-19 14:02:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_init [2021-11-19 14:02:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:02:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:02:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fbuf [2021-11-19 14:02:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fbuf [2021-11-19 14:02:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-19 14:02:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-19 14:02:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 14:02:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 14:02:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:02:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:02:37,842 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:02:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:02:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:02:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:02:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_release [2021-11-19 14:02:37,842 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_release [2021-11-19 14:02:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:02:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:02:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:02:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2021-11-19 14:02:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2021-11-19 14:02:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 14:02:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 14:02:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-19 14:02:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-19 14:02:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:02:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:02:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 14:02:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 14:02:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2021-11-19 14:02:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2021-11-19 14:02:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-19 14:02:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-19 14:02:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2021-11-19 14:02:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2021-11-19 14:02:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 14:02:37,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 14:02:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_start_preview [2021-11-19 14:02:37,849 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_start_preview [2021-11-19 14:02:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:02:37,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:02:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure fops_release [2021-11-19 14:02:37,850 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_release [2021-11-19 14:02:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_querybuf [2021-11-19 14:02:37,850 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_querybuf [2021-11-19 14:02:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:02:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:02:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 14:02:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 14:02:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-11-19 14:02:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-11-19 14:02:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_write_out_dma [2021-11-19 14:02:37,852 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_write_out_dma [2021-11-19 14:02:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:02:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:02:37,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:02:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 14:02:37,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 14:02:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_format_by_fourcc [2021-11-19 14:02:37,852 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_format_by_fourcc [2021-11-19 14:02:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_dma_free [2021-11-19 14:02:37,853 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_dma_free [2021-11-19 14:02:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_buffer_next [2021-11-19 14:02:37,853 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_buffer_next [2021-11-19 14:02:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure program_capture_engine [2021-11-19 14:02:37,853 INFO L138 BoogieDeclarations]: Found implementation of procedure program_capture_engine [2021-11-19 14:02:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_close [2021-11-19 14:02:37,853 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_close [2021-11-19 14:02:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_video_device [2021-11-19 14:02:37,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_video_device [2021-11-19 14:02:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-19 14:02:37,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-19 14:02:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_setup [2021-11-19 14:02:37,854 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_setup [2021-11-19 14:02:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:02:37,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:02:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-19 14:02:37,854 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-19 14:02:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure fops_write [2021-11-19 14:02:37,855 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_write [2021-11-19 14:02:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_read [2021-11-19 14:02:37,855 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_read [2021-11-19 14:02:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 14:02:37,856 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 14:02:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure fops_poll [2021-11-19 14:02:37,856 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_poll [2021-11-19 14:02:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 14:02:37,856 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 14:02:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-19 14:02:37,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-19 14:02:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:02:37,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:02:39,391 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:02:39,399 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:02:40,889 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:07:18,948 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:07:19,091 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:07:19,116 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:07:19,116 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-19 14:07:19,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:07:19 BoogieIcfgContainer [2021-11-19 14:07:19,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:07:19,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:07:19,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:07:19,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:07:19,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:02:29" (1/3) ... [2021-11-19 14:07:19,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2861df4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:07:19, skipping insertion in model container [2021-11-19 14:07:19,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:36" (2/3) ... [2021-11-19 14:07:19,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2861df4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:07:19, skipping insertion in model container [2021-11-19 14:07:19,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:07:19" (3/3) ... [2021-11-19 14:07:19,131 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-common-saa7146-saa7146_vv.cil.i [2021-11-19 14:07:19,137 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:07:19,137 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:07:19,202 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:07:19,208 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 [2021-11-19 14:07:19,208 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:07:19,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 3277 states, 2371 states have (on average 1.34626739772248) internal successors, (3192), 2388 states have internal predecessors, (3192), 771 states have call successors, (771), 133 states have call predecessors, (771), 132 states have return successors, (762), 755 states have call predecessors, (762), 762 states have call successors, (762) [2021-11-19 14:07:19,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2021-11-19 14:07:19,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:19,324 INFO L514 BasicCegarLoop]: trace histogram [44, 44, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:19,325 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)] === [2021-11-19 14:07:19,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:19,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1875886613, now seen corresponding path program 1 times [2021-11-19 14:07:19,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:19,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477769377] [2021-11-19 14:07:19,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:19,353 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:19,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:19,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:19,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:07:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:23,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 4281 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:07:23,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:24,744 INFO L134 CoverageAnalysis]: Checked inductivity of 8256 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 8127 trivial. 0 not checked. [2021-11-19 14:07:24,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:26,217 INFO L134 CoverageAnalysis]: Checked inductivity of 8256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8256 trivial. 0 not checked. [2021-11-19 14:07:26,218 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:26,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477769377] [2021-11-19 14:07:26,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477769377] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:26,219 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:07:26,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:07:26,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750905624] [2021-11-19 14:07:26,225 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:26,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:07:26,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:26,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:07:26,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:07:26,290 INFO L87 Difference]: Start difference. First operand has 3277 states, 2371 states have (on average 1.34626739772248) internal successors, (3192), 2388 states have internal predecessors, (3192), 771 states have call successors, (771), 133 states have call predecessors, (771), 132 states have return successors, (762), 755 states have call predecessors, (762), 762 states have call successors, (762) Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2021-11-19 14:07:28,714 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:48,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:48,131 INFO L93 Difference]: Finished difference Result 12633 states and 18588 transitions. [2021-11-19 14:07:48,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:07:48,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 496 [2021-11-19 14:07:48,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:48,263 INFO L225 Difference]: With dead ends: 12633 [2021-11-19 14:07:48,263 INFO L226 Difference]: Without dead ends: 9415 [2021-11-19 14:07:48,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 990 GetRequests, 988 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:07:48,305 INFO L933 BasicCegarLoop]: 6068 mSDtfsCounter, 12103 mSDsluCounter, 7540 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 1421 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12103 SdHoareTripleChecker+Valid, 13608 SdHoareTripleChecker+Invalid, 3018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1421 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:48,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12103 Valid, 13608 Invalid, 3018 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1421 Valid, 1596 Invalid, 1 Unknown, 0 Unchecked, 20.9s Time] [2021-11-19 14:07:48,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9415 states. [2021-11-19 14:07:49,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9415 to 9395. [2021-11-19 14:07:49,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9395 states, 6854 states have (on average 1.338342573679603) internal successors, (9173), 6901 states have internal predecessors, (9173), 2148 states have call successors, (2148), 391 states have call predecessors, (2148), 390 states have return successors, (2144), 2123 states have call predecessors, (2144), 2144 states have call successors, (2144) [2021-11-19 14:07:49,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9395 states to 9395 states and 13465 transitions. [2021-11-19 14:07:49,210 INFO L78 Accepts]: Start accepts. Automaton has 9395 states and 13465 transitions. Word has length 496 [2021-11-19 14:07:49,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:49,216 INFO L470 AbstractCegarLoop]: Abstraction has 9395 states and 13465 transitions. [2021-11-19 14:07:49,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2021-11-19 14:07:49,217 INFO L276 IsEmpty]: Start isEmpty. Operand 9395 states and 13465 transitions. [2021-11-19 14:07:49,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2021-11-19 14:07:49,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:49,255 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:49,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:49,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:49,479 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:07:49,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:49,480 INFO L85 PathProgramCache]: Analyzing trace with hash 402626508, now seen corresponding path program 1 times [2021-11-19 14:07:49,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:49,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500461600] [2021-11-19 14:07:49,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:49,485 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:49,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:49,490 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:49,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:07:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:53,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 4370 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:07:53,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:55,379 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 519 proven. 0 refuted. 0 times theorem prover too weak. 8127 trivial. 0 not checked. [2021-11-19 14:07:55,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:56,946 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8646 trivial. 0 not checked. [2021-11-19 14:07:56,946 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:56,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500461600] [2021-11-19 14:07:56,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500461600] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:56,947 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:07:56,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:07:56,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152961392] [2021-11-19 14:07:56,948 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:56,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:07:56,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:56,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:07:56,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:07:56,954 INFO L87 Difference]: Start difference. First operand 9395 states and 13465 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-19 14:07:59,401 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:00,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:00,744 INFO L93 Difference]: Finished difference Result 24592 states and 35209 transitions. [2021-11-19 14:08:00,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:08:00,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 531 [2021-11-19 14:08:00,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:00,939 INFO L225 Difference]: With dead ends: 24592 [2021-11-19 14:08:00,939 INFO L226 Difference]: Without dead ends: 15288 [2021-11-19 14:08:01,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1060 GetRequests, 1059 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:01,014 INFO L933 BasicCegarLoop]: 5338 mSDtfsCounter, 4316 mSDsluCounter, 4598 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4316 SdHoareTripleChecker+Valid, 9936 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:01,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4316 Valid, 9936 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2021-11-19 14:08:01,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15288 states. [2021-11-19 14:08:02,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15288 to 15255. [2021-11-19 14:08:02,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15255 states, 11192 states have (on average 1.3396175839885633) internal successors, (14993), 11267 states have internal predecessors, (14993), 3412 states have call successors, (3412), 649 states have call predecessors, (3412), 648 states have return successors, (3408), 3370 states have call predecessors, (3408), 3408 states have call successors, (3408) [2021-11-19 14:08:02,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15255 states to 15255 states and 21813 transitions. [2021-11-19 14:08:02,150 INFO L78 Accepts]: Start accepts. Automaton has 15255 states and 21813 transitions. Word has length 531 [2021-11-19 14:08:02,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:02,152 INFO L470 AbstractCegarLoop]: Abstraction has 15255 states and 21813 transitions. [2021-11-19 14:08:02,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-19 14:08:02,153 INFO L276 IsEmpty]: Start isEmpty. Operand 15255 states and 21813 transitions. [2021-11-19 14:08:02,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2021-11-19 14:08:02,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:02,174 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:02,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:02,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:02,398 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:08:02,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:02,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1765627233, now seen corresponding path program 1 times [2021-11-19 14:08:02,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:02,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928752401] [2021-11-19 14:08:02,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:02,404 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:02,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:02,406 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:02,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:08:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:06,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 4369 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:08:06,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:07,834 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 519 proven. 0 refuted. 0 times theorem prover too weak. 8127 trivial. 0 not checked. [2021-11-19 14:08:07,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:09,130 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8646 trivial. 0 not checked. [2021-11-19 14:08:09,130 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:09,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928752401] [2021-11-19 14:08:09,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928752401] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:09,130 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:09,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:08:09,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19016918] [2021-11-19 14:08:09,131 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:09,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:08:09,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:09,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:08:09,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:09,134 INFO L87 Difference]: Start difference. First operand 15255 states and 21813 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-19 14:08:11,542 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:13,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:13,194 INFO L93 Difference]: Finished difference Result 41125 states and 58764 transitions. [2021-11-19 14:08:13,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:08:13,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 530 [2021-11-19 14:08:13,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:13,411 INFO L225 Difference]: With dead ends: 41125 [2021-11-19 14:08:13,412 INFO L226 Difference]: Without dead ends: 25961 [2021-11-19 14:08:13,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1058 GetRequests, 1057 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:08:13,521 INFO L933 BasicCegarLoop]: 5544 mSDtfsCounter, 4303 mSDsluCounter, 4597 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4303 SdHoareTripleChecker+Valid, 10141 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:13,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4303 Valid, 10141 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2021-11-19 14:08:13,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25961 states. [2021-11-19 14:08:15,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25961 to 25930. [2021-11-19 14:08:15,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25930 states, 19113 states have (on average 1.3407628315805995) internal successors, (25626), 19243 states have internal predecessors, (25626), 5690 states have call successors, (5690), 1125 states have call predecessors, (5690), 1124 states have return successors, (5686), 5614 states have call predecessors, (5686), 5686 states have call successors, (5686) [2021-11-19 14:08:15,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25930 states to 25930 states and 37002 transitions. [2021-11-19 14:08:15,558 INFO L78 Accepts]: Start accepts. Automaton has 25930 states and 37002 transitions. Word has length 530 [2021-11-19 14:08:15,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:15,561 INFO L470 AbstractCegarLoop]: Abstraction has 25930 states and 37002 transitions. [2021-11-19 14:08:15,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-19 14:08:15,561 INFO L276 IsEmpty]: Start isEmpty. Operand 25930 states and 37002 transitions. [2021-11-19 14:08:15,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2021-11-19 14:08:15,582 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:15,582 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:15,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:15,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:15,807 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:08:15,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:15,807 INFO L85 PathProgramCache]: Analyzing trace with hash -2059504881, now seen corresponding path program 1 times [2021-11-19 14:08:15,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:15,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302720936] [2021-11-19 14:08:15,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:15,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:15,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:15,817 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:15,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:08:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:20,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 4414 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:08:20,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:21,674 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 519 proven. 0 refuted. 0 times theorem prover too weak. 8127 trivial. 0 not checked. [2021-11-19 14:08:21,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:23,027 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8646 trivial. 0 not checked. [2021-11-19 14:08:23,027 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:23,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302720936] [2021-11-19 14:08:23,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302720936] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:23,028 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:23,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:08:23,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318725959] [2021-11-19 14:08:23,028 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:23,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:08:23,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:23,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:08:23,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:08:23,030 INFO L87 Difference]: Start difference. First operand 25930 states and 37002 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2021-11-19 14:08:25,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:43,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:43,563 INFO L93 Difference]: Finished difference Result 96725 states and 138012 transitions. [2021-11-19 14:08:43,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:08:43,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) Word has length 532 [2021-11-19 14:08:43,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:44,185 INFO L225 Difference]: With dead ends: 96725 [2021-11-19 14:08:44,185 INFO L226 Difference]: Without dead ends: 70886 [2021-11-19 14:08:44,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1062 GetRequests, 1060 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:08:44,296 INFO L933 BasicCegarLoop]: 6042 mSDtfsCounter, 12027 mSDsluCounter, 7513 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 1423 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12027 SdHoareTripleChecker+Valid, 13555 SdHoareTripleChecker+Invalid, 3001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1423 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:44,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12027 Valid, 13555 Invalid, 3001 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1423 Valid, 1577 Invalid, 1 Unknown, 0 Unchecked, 18.4s Time] [2021-11-19 14:08:44,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70886 states. [2021-11-19 14:08:48,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70886 to 70812. [2021-11-19 14:08:48,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70812 states, 52325 states have (on average 1.3414237935977067) internal successors, (70190), 52699 states have internal predecessors, (70190), 15391 states have call successors, (15391), 3094 states have call predecessors, (15391), 3093 states have return successors, (15387), 15167 states have call predecessors, (15387), 15387 states have call successors, (15387) [2021-11-19 14:08:49,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70812 states to 70812 states and 100968 transitions. [2021-11-19 14:08:49,038 INFO L78 Accepts]: Start accepts. Automaton has 70812 states and 100968 transitions. Word has length 532 [2021-11-19 14:08:49,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:49,226 INFO L470 AbstractCegarLoop]: Abstraction has 70812 states and 100968 transitions. [2021-11-19 14:08:49,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2021-11-19 14:08:49,227 INFO L276 IsEmpty]: Start isEmpty. Operand 70812 states and 100968 transitions. [2021-11-19 14:08:49,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2021-11-19 14:08:49,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:49,239 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 43, 43, 43, 43, 43, 43, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:49,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:49,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:49,454 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)] === [2021-11-19 14:08:49,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:49,455 INFO L85 PathProgramCache]: Analyzing trace with hash -813715167, now seen corresponding path program 1 times [2021-11-19 14:08:49,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:49,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820786170] [2021-11-19 14:08:49,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:49,459 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:49,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:49,459 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:49,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:08:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:53,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 4348 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:08:53,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:54,259 INFO L134 CoverageAnalysis]: Checked inductivity of 8529 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 8388 trivial. 0 not checked. [2021-11-19 14:08:54,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:55,301 INFO L134 CoverageAnalysis]: Checked inductivity of 8529 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8523 trivial. 0 not checked. [2021-11-19 14:08:55,302 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:55,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820786170] [2021-11-19 14:08:55,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [820786170] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:55,302 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:55,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:08:55,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934438475] [2021-11-19 14:08:55,303 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:55,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:08:55,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:55,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:08:55,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:08:55,305 INFO L87 Difference]: Start difference. First operand 70812 states and 100968 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2021-11-19 14:08:57,670 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 [] [2021-11-19 14:09:17,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:17,556 INFO L93 Difference]: Finished difference Result 206845 states and 295067 transitions. [2021-11-19 14:09:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:09:17,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) Word has length 541 [2021-11-19 14:09:17,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:18,738 INFO L225 Difference]: With dead ends: 206845 [2021-11-19 14:09:18,738 INFO L226 Difference]: Without dead ends: 138482 [2021-11-19 14:09:19,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1080 GetRequests, 1078 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:09:19,049 INFO L933 BasicCegarLoop]: 9739 mSDtfsCounter, 9051 mSDsluCounter, 7511 mSDsCounter, 0 mSdLazyCounter, 1600 mSolverCounterSat, 728 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9051 SdHoareTripleChecker+Valid, 17250 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 728 IncrementalHoareTripleChecker+Valid, 1600 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:19,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9051 Valid, 17250 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [728 Valid, 1600 Invalid, 1 Unknown, 0 Unchecked, 17.5s Time] [2021-11-19 14:09:19,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138482 states. [2021-11-19 14:09:26,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138482 to 138450. [2021-11-19 14:09:26,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138450 states, 102355 states have (on average 1.3411948610229105) internal successors, (137278), 103041 states have internal predecessors, (137278), 30049 states have call successors, (30049), 6044 states have call predecessors, (30049), 6043 states have return successors, (30045), 29657 states have call predecessors, (30045), 30045 states have call successors, (30045) [2021-11-19 14:09:28,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138450 states to 138450 states and 197372 transitions. [2021-11-19 14:09:28,268 INFO L78 Accepts]: Start accepts. Automaton has 138450 states and 197372 transitions. Word has length 541 [2021-11-19 14:09:28,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:28,269 INFO L470 AbstractCegarLoop]: Abstraction has 138450 states and 197372 transitions. [2021-11-19 14:09:28,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2021-11-19 14:09:28,270 INFO L276 IsEmpty]: Start isEmpty. Operand 138450 states and 197372 transitions. [2021-11-19 14:09:28,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2021-11-19 14:09:28,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:28,291 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:09:28,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:28,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:28,514 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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)] === [2021-11-19 14:09:28,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:28,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1365576501, now seen corresponding path program 1 times [2021-11-19 14:09:28,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:28,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562498090] [2021-11-19 14:09:28,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:28,520 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:28,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:28,521 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:28,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e23244-09d8-4a2a-890d-08b70dee8ae6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:09:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:32,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 4493 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:09:32,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:34,060 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 519 proven. 0 refuted. 0 times theorem prover too weak. 8127 trivial. 0 not checked. [2021-11-19 14:09:34,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:35,920 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8646 trivial. 0 not checked. [2021-11-19 14:09:35,920 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:35,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562498090] [2021-11-19 14:09:35,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562498090] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:35,921 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:35,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:09:35,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068858274] [2021-11-19 14:09:35,922 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:35,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:09:35,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:35,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:09:35,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:35,925 INFO L87 Difference]: Start difference. First operand 138450 states and 197372 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-19 14:09:38,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:47,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:47,723 INFO L93 Difference]: Finished difference Result 391649 states and 557469 transitions. [2021-11-19 14:09:47,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:09:47,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 558 [2021-11-19 14:09:47,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:49,510 INFO L225 Difference]: With dead ends: 391649 [2021-11-19 14:09:49,510 INFO L226 Difference]: Without dead ends: 253290 [2021-11-19 14:09:49,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1114 GetRequests, 1113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:49,933 INFO L933 BasicCegarLoop]: 5848 mSDtfsCounter, 4001 mSDsluCounter, 4566 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4001 SdHoareTripleChecker+Valid, 10414 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:49,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4001 Valid, 10414 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2021-11-19 14:09:50,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253290 states.