./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0b786c7288de9cf8dd0401decdda2bff73e49ac511bb0e3840e790a5ca68ebcc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:31:15,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:31:15,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:31:15,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:31:15,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:31:15,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:31:15,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:31:15,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:31:15,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:31:15,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:31:15,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:31:15,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:31:15,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:31:15,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:31:15,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:31:15,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:31:15,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:31:15,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:31:15,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:31:15,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:31:15,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:31:15,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:31:15,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:31:15,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:31:15,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:31:15,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:31:15,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:31:15,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:31:15,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:31:15,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:31:15,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:31:15,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:31:15,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:31:15,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:31:15,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:31:15,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:31:15,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:31:15,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:31:15,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:31:15,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:31:15,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:31:15,572 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 01:31:15,623 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:31:15,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:31:15,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:31:15,625 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:31:15,625 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:31:15,626 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:31:15,626 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:31:15,626 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:31:15,633 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:31:15,633 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:31:15,634 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:31:15,635 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:31:15,635 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:31:15,635 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:31:15,635 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:31:15,636 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:31:15,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:31:15,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:31:15,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:31:15,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:31:15,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:31:15,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:31:15,638 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:31:15,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:31:15,638 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:31:15,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:31:15,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:31:15,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:31:15,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:31:15,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:31:15,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:31:15,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:31:15,640 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:31:15,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:31:15,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:31:15,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:31:15,641 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:31:15,641 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_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b786c7288de9cf8dd0401decdda2bff73e49ac511bb0e3840e790a5ca68ebcc [2021-11-13 01:31:15,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:31:15,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:31:15,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:31:15,969 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:31:15,970 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:31:15,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-13 01:31:16,052 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/data/8cfc63658/a699252c59df4f1cafffee17b8edf79d/FLAG01a75b2dd [2021-11-13 01:31:17,021 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:31:17,021 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-13 01:31:17,094 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/data/8cfc63658/a699252c59df4f1cafffee17b8edf79d/FLAG01a75b2dd [2021-11-13 01:31:17,412 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/data/8cfc63658/a699252c59df4f1cafffee17b8edf79d [2021-11-13 01:31:17,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:31:17,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:31:17,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:31:17,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:31:17,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:31:17,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:31:17" (1/1) ... [2021-11-13 01:31:17,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522bbf03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:17, skipping insertion in model container [2021-11-13 01:31:17,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:31:17" (1/1) ... [2021-11-13 01:31:17,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:31:17,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:31:19,038 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,297 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,341 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,362 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,418 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,425 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,435 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,454 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,596 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,619 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,649 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,655 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,668 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,691 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,708 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,725 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,732 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,740 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,755 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,797 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,803 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,816 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,830 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,837 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,844 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,851 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,852 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,859 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,861 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:19,873 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:31:20,683 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352069,352082] [2021-11-13 01:31:20,686 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352235,352248] [2021-11-13 01:31:20,686 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352399,352412] [2021-11-13 01:31:20,686 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352564,352577] [2021-11-13 01:31:20,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:31:20,835 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-13 01:31:20,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3ba59ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:20, skipping insertion in model container [2021-11-13 01:31:20,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:31:20,836 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:31:20,838 INFO L158 Benchmark]: Toolchain (without parser) took 3417.95ms. Allocated memory was 109.1MB in the beginning and 161.5MB in the end (delta: 52.4MB). Free memory was 78.7MB in the beginning and 66.9MB in the end (delta: 11.9MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2021-11-13 01:31:20,840 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:31:20,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3414.47ms. Allocated memory was 109.1MB in the beginning and 161.5MB in the end (delta: 52.4MB). Free memory was 78.7MB in the beginning and 66.9MB in the end (delta: 11.9MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2021-11-13 01:31:20,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3414.47ms. Allocated memory was 109.1MB in the beginning and 161.5MB in the end (delta: 52.4MB). Free memory was 78.7MB in the beginning and 66.9MB in the end (delta: 11.9MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5286]: 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_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0b786c7288de9cf8dd0401decdda2bff73e49ac511bb0e3840e790a5ca68ebcc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:31:23,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:31:23,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:31:23,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:31:23,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:31:23,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:31:23,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:31:23,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:31:23,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:31:23,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:31:23,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:31:23,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:31:23,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:31:23,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:31:23,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:31:23,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:31:23,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:31:23,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:31:23,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:31:23,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:31:23,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:31:23,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:31:23,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:31:23,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:31:23,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:31:23,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:31:23,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:31:23,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:31:23,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:31:23,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:31:23,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:31:23,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:31:23,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:31:23,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:31:23,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:31:23,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:31:23,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:31:23,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:31:23,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:31:23,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:31:23,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:31:23,607 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 01:31:23,655 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:31:23,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:31:23,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:31:23,657 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:31:23,658 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:31:23,658 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:31:23,658 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:31:23,658 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:31:23,659 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:31:23,659 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:31:23,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:31:23,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:31:23,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:31:23,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:31:23,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:31:23,663 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:31:23,663 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:31:23,663 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:31:23,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:31:23,664 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:31:23,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:31:23,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:31:23,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:31:23,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:31:23,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:31:23,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:31:23,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:31:23,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:31:23,666 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:31:23,666 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:31:23,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:31:23,666 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:31:23,666 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:31:23,667 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_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b786c7288de9cf8dd0401decdda2bff73e49ac511bb0e3840e790a5ca68ebcc [2021-11-13 01:31:24,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:31:24,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:31:24,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:31:24,108 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:31:24,108 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:31:24,110 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-13 01:31:24,183 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/data/ea70c8a93/0e2776a3ae1f4f2e9113b4923f5ae30f/FLAG7dd9255c6 [2021-11-13 01:31:25,435 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:31:25,436 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-13 01:31:25,493 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/data/ea70c8a93/0e2776a3ae1f4f2e9113b4923f5ae30f/FLAG7dd9255c6 [2021-11-13 01:31:25,718 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/data/ea70c8a93/0e2776a3ae1f4f2e9113b4923f5ae30f [2021-11-13 01:31:25,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:31:25,722 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:31:25,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:31:25,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:31:25,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:31:25,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:31:25" (1/1) ... [2021-11-13 01:31:25,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d22b3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:25, skipping insertion in model container [2021-11-13 01:31:25,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:31:25" (1/1) ... [2021-11-13 01:31:25,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:31:25,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:31:28,468 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352069,352082] [2021-11-13 01:31:28,470 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352235,352248] [2021-11-13 01:31:28,471 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352399,352412] [2021-11-13 01:31:28,472 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352564,352577] [2021-11-13 01:31:28,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:31:28,580 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 01:31:28,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:31:29,259 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352069,352082] [2021-11-13 01:31:29,260 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352235,352248] [2021-11-13 01:31:29,260 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352399,352412] [2021-11-13 01:31:29,261 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352564,352577] [2021-11-13 01:31:29,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:31:29,339 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:31:29,811 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352069,352082] [2021-11-13 01:31:29,812 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352235,352248] [2021-11-13 01:31:29,813 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352399,352412] [2021-11-13 01:31:29,813 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352564,352577] [2021-11-13 01:31:29,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:31:30,071 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:31:30,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:30 WrapperNode [2021-11-13 01:31:30,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:31:30,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:31:30,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:31:30,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:31:30,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:30" (1/1) ... [2021-11-13 01:31:30,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:30" (1/1) ... [2021-11-13 01:31:30,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:31:30,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:31:30,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:31:30,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:31:30,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:30" (1/1) ... [2021-11-13 01:31:30,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:30" (1/1) ... [2021-11-13 01:31:30,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:30" (1/1) ... [2021-11-13 01:31:30,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:30" (1/1) ... [2021-11-13 01:31:31,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:30" (1/1) ... [2021-11-13 01:31:31,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:30" (1/1) ... [2021-11-13 01:31:31,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:30" (1/1) ... [2021-11-13 01:31:31,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:31:31,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:31:31,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:31:31,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:31:31,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:30" (1/1) ... [2021-11-13 01:31:31,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:31:31,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:31:31,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:31:31,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:31:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure setbrightness [2021-11-13 01:31:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setbrightness [2021-11-13 01:31:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure ov519_set_fr [2021-11-13 01:31:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ov519_set_fr [2021-11-13 01:31:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_write_sb [2021-11-13 01:31:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_write_sb [2021-11-13 01:31:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 01:31:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-13 01:31:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-13 01:31:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure sd_isoc_init [2021-11-13 01:31:31,363 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_isoc_init [2021-11-13 01:31:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 01:31:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:31:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 01:31:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 01:31:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 01:31:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 01:31:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 01:31:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2021-11-13 01:31:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2021-11-13 01:31:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 01:31:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 01:31:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_upload_quan_tables [2021-11-13 01:31:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_upload_quan_tables [2021-11-13 01:31:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure sd_start [2021-11-13 01:31:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_start [2021-11-13 01:31:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 01:31:31,366 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 01:31:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_frame_add [2021-11-13 01:31:31,366 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_frame_add [2021-11-13 01:31:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure reg_w_mask [2021-11-13 01:31:31,367 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_w_mask [2021-11-13 01:31:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure ov518_i2c_w [2021-11-13 01:31:31,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ov518_i2c_w [2021-11-13 01:31:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:31:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-11-13 01:31:31,368 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-11-13 01:31:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure ov519_set_mode [2021-11-13 01:31:31,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ov519_set_mode [2021-11-13 01:31:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_handle_button [2021-11-13 01:31:31,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_handle_button [2021-11-13 01:31:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 01:31:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 01:31:31,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 01:31:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_stop [2021-11-13 01:31:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_stop [2021-11-13 01:31:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_stop [2021-11-13 01:31:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_stop [2021-11-13 01:31:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-11-13 01:31:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-11-13 01:31:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2021-11-13 01:31:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2021-11-13 01:31:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 01:31:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 01:31:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-13 01:31:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-13 01:31:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure sd_reset_snapshot [2021-11-13 01:31:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_reset_snapshot [2021-11-13 01:31:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 01:31:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 01:31:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:31:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:31:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure mode_init_ov_sensor_regs [2021-11-13 01:31:31,375 INFO L138 BoogieDeclarations]: Found implementation of procedure mode_init_ov_sensor_regs [2021-11-13 01:31:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 01:31:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_read_ack [2021-11-13 01:31:31,376 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_read_ack [2021-11-13 01:31:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-13 01:31:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:31:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 01:31:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure write_regvals [2021-11-13 01:31:31,376 INFO L138 BoogieDeclarations]: Found implementation of procedure write_regvals [2021-11-13 01:31:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 01:31:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure ov518_reg_w32 [2021-11-13 01:31:31,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ov518_reg_w32 [2021-11-13 01:31:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 01:31:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 01:31:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-11-13 01:31:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-11-13 01:31:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure write_i2c_regvals [2021-11-13 01:31:31,379 INFO L138 BoogieDeclarations]: Found implementation of procedure write_i2c_regvals [2021-11-13 01:31:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_write_byte [2021-11-13 01:31:31,380 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_write_byte [2021-11-13 01:31:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure sd_g_volatile_ctrl [2021-11-13 01:31:31,380 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_g_volatile_ctrl [2021-11-13 01:31:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 01:31:31,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 01:31:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_grab [2021-11-13 01:31:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_grab [2021-11-13 01:31:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2021-11-13 01:31:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2021-11-13 01:31:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 01:31:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 01:31:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-13 01:31:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-13 01:31:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 01:31:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 01:31:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init [2021-11-13 01:31:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init [2021-11-13 01:31:31,383 INFO L130 BoogieDeclarations]: Found specification of procedure init_ov_sensor [2021-11-13 01:31:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ov_sensor [2021-11-13 01:31:31,383 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_write_fsb [2021-11-13 01:31:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_write_fsb [2021-11-13 01:31:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-11-13 01:31:31,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-11-13 01:31:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-11-13 01:31:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-11-13 01:31:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 01:31:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_disconnect [2021-11-13 01:31:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_disconnect [2021-11-13 01:31:31,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 01:31:31,389 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_start [2021-11-13 01:31:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_start [2021-11-13 01:31:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 01:31:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 01:31:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std_menu [2021-11-13 01:31:31,397 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std_menu [2021-11-13 01:31:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_set_crop_window [2021-11-13 01:31:31,398 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_set_crop_window [2021-11-13 01:31:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_led_control [2021-11-13 01:31:31,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_led_control [2021-11-13 01:31:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 01:31:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2021-11-13 01:31:31,398 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2021-11-13 01:31:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-13 01:31:31,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-13 01:31:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 01:31:31,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 01:31:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_w_mask [2021-11-13 01:31:31,399 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_w_mask [2021-11-13 01:31:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 01:31:31,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 01:31:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 01:31:31,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 01:31:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 01:31:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 01:31:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 01:31:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 01:31:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-13 01:31:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-13 01:31:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stopN [2021-11-13 01:31:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stopN [2021-11-13 01:31:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure sd_s_ctrl [2021-11-13 01:31:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_s_ctrl [2021-11-13 01:31:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_g_ctrl [2021-11-13 01:31:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_g_ctrl [2021-11-13 01:31:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 01:31:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 01:31:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stop0 [2021-11-13 01:31:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stop0 [2021-11-13 01:31:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_restart [2021-11-13 01:31:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_restart [2021-11-13 01:31:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_w [2021-11-13 01:31:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_w [2021-11-13 01:31:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_r [2021-11-13 01:31:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_r [2021-11-13 01:31:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure reg_r8 [2021-11-13 01:31:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_r8 [2021-11-13 01:31:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init_controls [2021-11-13 01:31:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init_controls [2021-11-13 01:31:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 01:31:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_auto_cluster [2021-11-13 01:31:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_auto_cluster [2021-11-13 01:31:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure reg_r [2021-11-13 01:31:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_r [2021-11-13 01:31:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 01:31:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 01:31:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_read_sb [2021-11-13 01:31:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_read_sb [2021-11-13 01:31:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure reg_w [2021-11-13 01:31:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_w [2021-11-13 01:31:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:31:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:31:42,903 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 01:38:07,873 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 01:38:08,674 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:38:08,675 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 01:38:08,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:38:08 BoogieIcfgContainer [2021-11-13 01:38:08,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:38:08,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:38:08,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:38:08,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:38:08,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:31:25" (1/3) ... [2021-11-13 01:38:08,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b7734a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:38:08, skipping insertion in model container [2021-11-13 01:38:08,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:30" (2/3) ... [2021-11-13 01:38:08,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b7734a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:38:08, skipping insertion in model container [2021-11-13 01:38:08,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:38:08" (3/3) ... [2021-11-13 01:38:08,689 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-13 01:38:08,694 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:38:08,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:38:08,753 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:38:08,759 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 01:38:08,760 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:38:08,825 INFO L276 IsEmpty]: Start isEmpty. Operand has 2124 states, 1431 states have (on average 1.443046820405311) internal successors, (2065), 1534 states have internal predecessors, (2065), 621 states have call successors, (621), 72 states have call predecessors, (621), 71 states have return successors, (614), 545 states have call predecessors, (614), 614 states have call successors, (614) [2021-11-13 01:38:08,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-13 01:38:08,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:38:08,855 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:38:08,856 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:38:08,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:38:08,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1838912498, now seen corresponding path program 1 times [2021-11-13 01:38:08,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:38:08,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696090773] [2021-11-13 01:38:08,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:38:08,893 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:38:08,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:38:08,899 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:38:08,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:38:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:38:20,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 5025 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:38:20,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:38:22,758 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-11-13 01:38:22,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:38:24,449 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-13 01:38:24,450 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:38:24,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696090773] [2021-11-13 01:38:24,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696090773] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:38:24,451 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:38:24,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:38:24,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841229009] [2021-11-13 01:38:24,453 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:38:24,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:38:24,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:38:24,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:38:24,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:38:24,493 INFO L87 Difference]: Start difference. First operand has 2124 states, 1431 states have (on average 1.443046820405311) internal successors, (2065), 1534 states have internal predecessors, (2065), 621 states have call successors, (621), 72 states have call predecessors, (621), 71 states have return successors, (614), 545 states have call predecessors, (614), 614 states have call successors, (614) Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-13 01:38:27,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:39:20,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:39:20,259 INFO L93 Difference]: Finished difference Result 8255 states and 12891 transitions. [2021-11-13 01:39:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:39:20,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 129 [2021-11-13 01:39:20,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:39:20,377 INFO L225 Difference]: With dead ends: 8255 [2021-11-13 01:39:20,378 INFO L226 Difference]: Without dead ends: 6135 [2021-11-13 01:39:20,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:39:20,421 INFO L933 BasicCegarLoop]: 4476 mSDtfsCounter, 8366 mSDsluCounter, 5169 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 1196 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53816.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8366 SdHoareTripleChecker+Valid, 9645 SdHoareTripleChecker+Invalid, 2470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 78.27ms SdHoareTripleChecker+Time, 1196 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55052.65ms IncrementalHoareTripleChecker+Time [2021-11-13 01:39:20,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8366 Valid, 9645 Invalid, 2470 Unknown, 0 Unchecked, 78.27ms Time], IncrementalHoareTripleChecker [1196 Valid, 1273 Invalid, 1 Unknown, 0 Unchecked, 55052.65ms Time] [2021-11-13 01:39:20,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6135 states. [2021-11-13 01:39:21,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6135 to 6125. [2021-11-13 01:39:21,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6125 states, 4146 states have (on average 1.449831162566329) internal successors, (6011), 4455 states have internal predecessors, (6011), 1772 states have call successors, (1772), 207 states have call predecessors, (1772), 206 states have return successors, (1768), 1561 states have call predecessors, (1768), 1768 states have call successors, (1768) [2021-11-13 01:39:21,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6125 states to 6125 states and 9551 transitions. [2021-11-13 01:39:21,153 INFO L78 Accepts]: Start accepts. Automaton has 6125 states and 9551 transitions. Word has length 129 [2021-11-13 01:39:21,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:39:21,155 INFO L470 AbstractCegarLoop]: Abstraction has 6125 states and 9551 transitions. [2021-11-13 01:39:21,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-13 01:39:21,155 INFO L276 IsEmpty]: Start isEmpty. Operand 6125 states and 9551 transitions. [2021-11-13 01:39:21,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-13 01:39:21,187 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:39:21,188 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:39:21,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:39:21,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:39:21,409 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:39:21,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:39:21,410 INFO L85 PathProgramCache]: Analyzing trace with hash -723348838, now seen corresponding path program 1 times [2021-11-13 01:39:21,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:39:21,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563313502] [2021-11-13 01:39:21,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:39:21,421 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:39:21,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:39:21,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:39:21,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:39:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:39:32,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 5153 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:39:32,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:39:46,937 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-13 01:39:46,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:39:53,016 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-13 01:39:53,016 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:39:53,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563313502] [2021-11-13 01:39:53,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1563313502] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:39:53,017 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:39:53,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 01:39:53,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042339535] [2021-11-13 01:39:53,018 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:39:53,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:39:53,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:39:53,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:39:53,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:39:53,022 INFO L87 Difference]: Start difference. First operand 6125 states and 9551 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-13 01:39:56,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:39:56,082 INFO L93 Difference]: Finished difference Result 6131 states and 9556 transitions. [2021-11-13 01:39:56,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:39:56,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 188 [2021-11-13 01:39:56,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:39:56,176 INFO L225 Difference]: With dead ends: 6131 [2021-11-13 01:39:56,176 INFO L226 Difference]: Without dead ends: 6129 [2021-11-13 01:39:56,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:39:56,188 INFO L933 BasicCegarLoop]: 3271 mSDtfsCounter, 3189 mSDsluCounter, 13075 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1298.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3192 SdHoareTripleChecker+Valid, 16346 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.66ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1308.16ms IncrementalHoareTripleChecker+Time [2021-11-13 01:39:56,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3192 Valid, 16346 Invalid, 22 Unknown, 0 Unchecked, 50.66ms Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 1308.16ms Time] [2021-11-13 01:39:56,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6129 states. [2021-11-13 01:39:56,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6129 to 6129. [2021-11-13 01:39:56,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6129 states, 4149 states have (on average 1.4495059050373584) internal successors, (6014), 4458 states have internal predecessors, (6014), 1772 states have call successors, (1772), 208 states have call predecessors, (1772), 207 states have return successors, (1768), 1561 states have call predecessors, (1768), 1768 states have call successors, (1768) [2021-11-13 01:39:57,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 9554 transitions. [2021-11-13 01:39:57,028 INFO L78 Accepts]: Start accepts. Automaton has 6129 states and 9554 transitions. Word has length 188 [2021-11-13 01:39:57,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:39:57,030 INFO L470 AbstractCegarLoop]: Abstraction has 6129 states and 9554 transitions. [2021-11-13 01:39:57,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-13 01:39:57,032 INFO L276 IsEmpty]: Start isEmpty. Operand 6129 states and 9554 transitions. [2021-11-13 01:39:57,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-13 01:39:57,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:39:57,069 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:39:57,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:39:57,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:39:57,295 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:39:57,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:39:57,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1381665388, now seen corresponding path program 1 times [2021-11-13 01:39:57,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:39:57,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078595892] [2021-11-13 01:39:57,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:39:57,302 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:39:57,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:39:57,303 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:39:57,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:40:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:08,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 5160 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:40:08,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:23,008 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-13 01:40:23,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:29,053 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-13 01:40:29,053 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:29,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078595892] [2021-11-13 01:40:29,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078595892] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:40:29,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:40:29,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-13 01:40:29,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550653562] [2021-11-13 01:40:29,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:29,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:40:29,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:29,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:40:29,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:40:29,056 INFO L87 Difference]: Start difference. First operand 6129 states and 9554 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-13 01:40:31,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:31,499 INFO L93 Difference]: Finished difference Result 6135 states and 9559 transitions. [2021-11-13 01:40:31,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:40:31,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 193 [2021-11-13 01:40:31,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:31,580 INFO L225 Difference]: With dead ends: 6135 [2021-11-13 01:40:31,580 INFO L226 Difference]: Without dead ends: 6133 [2021-11-13 01:40:31,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:40:31,593 INFO L933 BasicCegarLoop]: 3274 mSDtfsCounter, 3216 mSDsluCounter, 6537 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 840.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3218 SdHoareTripleChecker+Valid, 9811 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.31ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 909.87ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:31,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3218 Valid, 9811 Invalid, 13 Unknown, 0 Unchecked, 25.31ms Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 909.87ms Time] [2021-11-13 01:40:31,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6133 states. [2021-11-13 01:40:32,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6133 to 6133. [2021-11-13 01:40:32,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6133 states, 4152 states have (on average 1.4491811175337186) internal successors, (6017), 4461 states have internal predecessors, (6017), 1772 states have call successors, (1772), 209 states have call predecessors, (1772), 208 states have return successors, (1768), 1561 states have call predecessors, (1768), 1768 states have call successors, (1768) [2021-11-13 01:40:32,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6133 states to 6133 states and 9557 transitions. [2021-11-13 01:40:32,138 INFO L78 Accepts]: Start accepts. Automaton has 6133 states and 9557 transitions. Word has length 193 [2021-11-13 01:40:32,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:32,140 INFO L470 AbstractCegarLoop]: Abstraction has 6133 states and 9557 transitions. [2021-11-13 01:40:32,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-13 01:40:32,140 INFO L276 IsEmpty]: Start isEmpty. Operand 6133 states and 9557 transitions. [2021-11-13 01:40:32,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-13 01:40:32,176 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:32,176 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:32,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:40:32,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:32,403 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:32,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:32,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1136225900, now seen corresponding path program 1 times [2021-11-13 01:40:32,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:32,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336465470] [2021-11-13 01:40:32,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:32,408 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:32,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:32,409 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:32,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:40:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:43,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 5210 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:40:43,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:45,945 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2021-11-13 01:40:45,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:47,301 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2021-11-13 01:40:47,302 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:47,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336465470] [2021-11-13 01:40:47,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336465470] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:47,302 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:47,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:40:47,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943800826] [2021-11-13 01:40:47,303 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:47,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:40:47,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:47,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:40:47,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:47,304 INFO L87 Difference]: Start difference. First operand 6133 states and 9557 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-13 01:40:49,741 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 [] [2021-11-13 01:41:39,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:39,055 INFO L93 Difference]: Finished difference Result 12296 states and 19135 transitions. [2021-11-13 01:41:39,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:41:39,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 208 [2021-11-13 01:41:39,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:39,146 INFO L225 Difference]: With dead ends: 12296 [2021-11-13 01:41:39,146 INFO L226 Difference]: Without dead ends: 8183 [2021-11-13 01:41:39,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:41:39,208 INFO L933 BasicCegarLoop]: 6969 mSDtfsCounter, 6395 mSDsluCounter, 5177 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 605 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50183.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6395 SdHoareTripleChecker+Valid, 12146 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.84ms SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51084.73ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:39,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6395 Valid, 12146 Invalid, 1872 Unknown, 0 Unchecked, 40.84ms Time], IncrementalHoareTripleChecker [605 Valid, 1266 Invalid, 1 Unknown, 0 Unchecked, 51084.73ms Time] [2021-11-13 01:41:39,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8183 states. [2021-11-13 01:41:39,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8183 to 8147. [2021-11-13 01:41:39,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8147 states, 5517 states have (on average 1.4482508609751676) internal successors, (7990), 5928 states have internal predecessors, (7990), 2352 states have call successors, (2352), 278 states have call predecessors, (2352), 277 states have return successors, (2348), 2072 states have call predecessors, (2348), 2348 states have call successors, (2348) [2021-11-13 01:41:39,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8147 states to 8147 states and 12690 transitions. [2021-11-13 01:41:39,909 INFO L78 Accepts]: Start accepts. Automaton has 8147 states and 12690 transitions. Word has length 208 [2021-11-13 01:41:39,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:39,910 INFO L470 AbstractCegarLoop]: Abstraction has 8147 states and 12690 transitions. [2021-11-13 01:41:39,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-13 01:41:39,910 INFO L276 IsEmpty]: Start isEmpty. Operand 8147 states and 12690 transitions. [2021-11-13 01:41:39,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-13 01:41:39,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:39,943 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:40,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:40,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:40,159 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:40,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:40,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1967407718, now seen corresponding path program 1 times [2021-11-13 01:41:40,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:40,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127238690] [2021-11-13 01:41:40,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:40,167 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:40,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:40,168 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:40,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:41:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:51,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 5167 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:41:51,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:42:05,760 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-11-13 01:42:05,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:42:11,903 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-11-13 01:42:11,903 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:42:11,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127238690] [2021-11-13 01:42:11,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127238690] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:42:11,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:42:11,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-13 01:42:11,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287662314] [2021-11-13 01:42:11,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:11,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:42:11,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:42:11,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:42:11,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:42:11,905 INFO L87 Difference]: Start difference. First operand 8147 states and 12690 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-13 01:42:14,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:14,234 INFO L93 Difference]: Finished difference Result 8153 states and 12695 transitions. [2021-11-13 01:42:14,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:42:14,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 198 [2021-11-13 01:42:14,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:14,317 INFO L225 Difference]: With dead ends: 8153 [2021-11-13 01:42:14,317 INFO L226 Difference]: Without dead ends: 8149 [2021-11-13 01:42:14,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:42:14,329 INFO L933 BasicCegarLoop]: 3274 mSDtfsCounter, 3216 mSDsluCounter, 6537 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 819.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3217 SdHoareTripleChecker+Valid, 9811 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.14ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 879.49ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:14,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3217 Valid, 9811 Invalid, 13 Unknown, 0 Unchecked, 12.14ms Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 879.49ms Time] [2021-11-13 01:42:14,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8149 states. [2021-11-13 01:42:15,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8149 to 8149. [2021-11-13 01:42:15,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8149 states, 5519 states have (on average 1.4479072295705744) internal successors, (7991), 5929 states have internal predecessors, (7991), 2352 states have call successors, (2352), 279 states have call predecessors, (2352), 277 states have return successors, (2348), 2072 states have call predecessors, (2348), 2348 states have call successors, (2348) [2021-11-13 01:42:15,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8149 states to 8149 states and 12691 transitions. [2021-11-13 01:42:15,153 INFO L78 Accepts]: Start accepts. Automaton has 8149 states and 12691 transitions. Word has length 198 [2021-11-13 01:42:15,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:42:15,154 INFO L470 AbstractCegarLoop]: Abstraction has 8149 states and 12691 transitions. [2021-11-13 01:42:15,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-13 01:42:15,154 INFO L276 IsEmpty]: Start isEmpty. Operand 8149 states and 12691 transitions. [2021-11-13 01:42:15,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-13 01:42:15,192 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:42:15,192 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:42:15,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-13 01:42:15,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:42:15,407 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:42:15,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:42:15,408 INFO L85 PathProgramCache]: Analyzing trace with hash 895740258, now seen corresponding path program 1 times [2021-11-13 01:42:15,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:42:15,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962517420] [2021-11-13 01:42:15,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:42:15,412 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:42:15,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:42:15,413 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:42:15,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:42:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:42:26,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 5216 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:42:26,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:42:28,874 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2021-11-13 01:42:28,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:42:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-11-13 01:42:30,177 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:42:30,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962517420] [2021-11-13 01:42:30,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962517420] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:42:30,177 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:42:30,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:42:30,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790414878] [2021-11-13 01:42:30,178 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:30,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:42:30,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:42:30,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:42:30,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:42:30,180 INFO L87 Difference]: Start difference. First operand 8149 states and 12691 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-13 01:42:32,649 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:19,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:19,889 INFO L93 Difference]: Finished difference Result 18308 states and 28513 transitions. [2021-11-13 01:43:19,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:43:19,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 212 [2021-11-13 01:43:19,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:20,022 INFO L225 Difference]: With dead ends: 18308 [2021-11-13 01:43:20,022 INFO L226 Difference]: Without dead ends: 12179 [2021-11-13 01:43:20,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:43:20,093 INFO L933 BasicCegarLoop]: 6967 mSDtfsCounter, 6378 mSDsluCounter, 5764 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48330.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6378 SdHoareTripleChecker+Valid, 12731 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.29ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49006.92ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:20,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6378 Valid, 12731 Invalid, 1281 Unknown, 0 Unchecked, 29.29ms Time], IncrementalHoareTripleChecker [15 Valid, 1265 Invalid, 1 Unknown, 0 Unchecked, 49006.92ms Time] [2021-11-13 01:43:20,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12179 states. [2021-11-13 01:43:21,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12179 to 12159. [2021-11-13 01:43:21,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12159 states, 8235 states have (on average 1.4494231936854887) internal successors, (11936), 8849 states have internal predecessors, (11936), 3510 states have call successors, (3510), 415 states have call predecessors, (3510), 413 states have return successors, (3506), 3092 states have call predecessors, (3506), 3506 states have call successors, (3506) [2021-11-13 01:43:21,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12159 states to 12159 states and 18952 transitions. [2021-11-13 01:43:21,287 INFO L78 Accepts]: Start accepts. Automaton has 12159 states and 18952 transitions. Word has length 212 [2021-11-13 01:43:21,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:21,288 INFO L470 AbstractCegarLoop]: Abstraction has 12159 states and 18952 transitions. [2021-11-13 01:43:21,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-13 01:43:21,289 INFO L276 IsEmpty]: Start isEmpty. Operand 12159 states and 18952 transitions. [2021-11-13 01:43:21,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-13 01:43:21,338 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:21,339 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:21,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:21,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:21,555 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:43:21,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:21,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1128370452, now seen corresponding path program 1 times [2021-11-13 01:43:21,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:21,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812200043] [2021-11-13 01:43:21,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:21,560 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:21,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:21,561 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:21,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 01:43:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:32,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 5174 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:43:32,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:47,366 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-13 01:43:47,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:53,570 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-13 01:43:53,570 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:53,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812200043] [2021-11-13 01:43:53,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812200043] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:43:53,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:43:53,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-13 01:43:53,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789692752] [2021-11-13 01:43:53,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:53,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:43:53,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:53,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:43:53,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:43:53,573 INFO L87 Difference]: Start difference. First operand 12159 states and 18952 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 01:43:56,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:56,006 INFO L93 Difference]: Finished difference Result 12159 states and 18952 transitions. [2021-11-13 01:43:56,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:43:56,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 203 [2021-11-13 01:43:56,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:56,007 INFO L225 Difference]: With dead ends: 12159 [2021-11-13 01:43:56,007 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 01:43:56,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:43:56,092 INFO L933 BasicCegarLoop]: 3272 mSDtfsCounter, 3212 mSDsluCounter, 6536 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 643.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3212 SdHoareTripleChecker+Valid, 9808 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.06ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 703.96ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:56,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3212 Valid, 9808 Invalid, 8 Unknown, 0 Unchecked, 11.06ms Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 703.96ms Time] [2021-11-13 01:43:56,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 01:43:56,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 01:43:56,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:56,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 01:43:56,097 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 203 [2021-11-13 01:43:56,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:56,098 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 01:43:56,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 01:43:56,098 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 01:43:56,098 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 01:43:56,101 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:43:56,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:56,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed341be9-cba8-4a3f-87cf-0280d3324391/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:56,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.