./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/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 4426d364359557dc10cf7e8f346d379b7d379eaf4a1a095af818bcdb9a3f651d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:43:49,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:43:49,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:43:49,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:43:49,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:43:49,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:43:49,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:43:49,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:43:49,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:43:49,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:43:49,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:43:49,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:43:49,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:43:49,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:43:49,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:43:49,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:43:49,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:43:49,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:43:49,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:43:49,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:43:49,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:43:49,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:43:49,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:43:49,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:43:49,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:43:49,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:43:49,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:43:49,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:43:49,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:43:49,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:43:49,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:43:49,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:43:49,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:43:49,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:43:49,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:43:49,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:43:49,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:43:49,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:43:49,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:43:49,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:43:49,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:43:49,746 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:43:49,771 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:43:49,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:43:49,772 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:43:49,772 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:43:49,773 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:43:49,773 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:43:49,773 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:43:49,773 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:43:49,774 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:43:49,774 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:43:49,774 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:43:49,774 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:43:49,775 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:43:49,775 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:43:49,775 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:43:49,775 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:43:49,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:43:49,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:43:49,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:43:49,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:43:49,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:43:49,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:43:49,777 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:43:49,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:43:49,778 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:43:49,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:43:49,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:43:49,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:43:49,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:43:49,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:43:49,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:43:49,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:43:49,780 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:43:49,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:43:49,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:43:49,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:43:49,781 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:43:49,781 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4426d364359557dc10cf7e8f346d379b7d379eaf4a1a095af818bcdb9a3f651d [2021-11-12 23:43:50,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:43:50,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:43:50,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:43:50,114 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:43:50,116 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:43:50,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i [2021-11-12 23:43:50,201 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/data/0b8e0f249/8252145701ad473ea532a287f4717647/FLAG0fc067b3d [2021-11-12 23:43:51,239 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:43:51,241 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i [2021-11-12 23:43:51,324 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/data/0b8e0f249/8252145701ad473ea532a287f4717647/FLAG0fc067b3d [2021-11-12 23:43:51,572 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/data/0b8e0f249/8252145701ad473ea532a287f4717647 [2021-11-12 23:43:51,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:43:51,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:43:51,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:43:51,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:43:51,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:43:51,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:43:51" (1/1) ... [2021-11-12 23:43:51,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b43e4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:51, skipping insertion in model container [2021-11-12 23:43:51,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:43:51" (1/1) ... [2021-11-12 23:43:51,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:43:51,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:43:53,736 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:53,846 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:53,854 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:53,883 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:53,953 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:53,962 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:53,973 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:53,985 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,000 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,011 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,019 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,036 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,054 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,060 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,063 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,066 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,069 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,071 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,081 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,093 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,286 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,295 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,296 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,297 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,299 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,309 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,311 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,318 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,320 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,321 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,321 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,615 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:54,620 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:55,242 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:55,242 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:43:56,057 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[405731,405744] [2021-11-12 23:43:56,060 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[405876,405889] [2021-11-12 23:43:56,061 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406022,406035] [2021-11-12 23:43:56,061 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406187,406200] [2021-11-12 23:43:56,062 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406345,406358] [2021-11-12 23:43:56,062 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406503,406516] [2021-11-12 23:43:56,063 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406661,406674] [2021-11-12 23:43:56,064 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406821,406834] [2021-11-12 23:43:56,064 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406980,406993] [2021-11-12 23:43:56,065 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407119,407132] [2021-11-12 23:43:56,066 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407261,407274] [2021-11-12 23:43:56,066 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407410,407423] [2021-11-12 23:43:56,067 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407549,407562] [2021-11-12 23:43:56,067 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407704,407717] [2021-11-12 23:43:56,068 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407864,407877] [2021-11-12 23:43:56,068 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408015,408028] [2021-11-12 23:43:56,069 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408166,408179] [2021-11-12 23:43:56,069 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408318,408331] [2021-11-12 23:43:56,071 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408467,408480] [2021-11-12 23:43:56,071 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408615,408628] [2021-11-12 23:43:56,072 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408772,408785] [2021-11-12 23:43:56,072 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408921,408934] [2021-11-12 23:43:56,073 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409077,409090] [2021-11-12 23:43:56,074 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409230,409243] [2021-11-12 23:43:56,074 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409376,409389] [2021-11-12 23:43:56,075 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409519,409532] [2021-11-12 23:43:56,075 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409671,409684] [2021-11-12 23:43:56,076 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409817,409830] [2021-11-12 23:43:56,077 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409962,409975] [2021-11-12 23:43:56,079 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410116,410129] [2021-11-12 23:43:56,079 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410267,410280] [2021-11-12 23:43:56,080 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410422,410435] [2021-11-12 23:43:56,080 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410574,410587] [2021-11-12 23:43:56,081 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410729,410742] [2021-11-12 23:43:56,081 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410893,410906] [2021-11-12 23:43:56,082 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411049,411062] [2021-11-12 23:43:56,082 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411213,411226] [2021-11-12 23:43:56,083 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411355,411368] [2021-11-12 23:43:56,083 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411513,411526] [2021-11-12 23:43:56,084 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411680,411693] [2021-11-12 23:43:56,085 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411839,411852] [2021-11-12 23:43:56,086 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411998,412011] [2021-11-12 23:43:56,086 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412147,412160] [2021-11-12 23:43:56,087 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412294,412307] [2021-11-12 23:43:56,087 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412433,412446] [2021-11-12 23:43:56,088 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412596,412609] [2021-11-12 23:43:56,088 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412762,412775] [2021-11-12 23:43:56,090 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412926,412939] [2021-11-12 23:43:56,091 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413091,413104] [2021-11-12 23:43:56,091 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413256,413269] [2021-11-12 23:43:56,092 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413422,413435] [2021-11-12 23:43:56,093 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413587,413600] [2021-11-12 23:43:56,094 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413754,413767] [2021-11-12 23:43:56,094 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413914,413927] [2021-11-12 23:43:56,095 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414076,414089] [2021-11-12 23:43:56,097 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414235,414248] [2021-11-12 23:43:56,098 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414381,414394] [2021-11-12 23:43:56,098 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414524,414537] [2021-11-12 23:43:56,099 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414668,414681] [2021-11-12 23:43:56,099 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414811,414824] [2021-11-12 23:43:56,100 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414955,414968] [2021-11-12 23:43:56,101 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415096,415109] [2021-11-12 23:43:56,101 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415234,415247] [2021-11-12 23:43:56,102 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415392,415405] [2021-11-12 23:43:56,102 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415551,415564] [2021-11-12 23:43:56,103 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415707,415720] [2021-11-12 23:43:56,104 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415856,415869] [2021-11-12 23:43:56,104 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416008,416021] [2021-11-12 23:43:56,105 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416159,416172] [2021-11-12 23:43:56,105 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416308,416321] [2021-11-12 23:43:56,106 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416460,416473] [2021-11-12 23:43:56,106 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416608,416621] [2021-11-12 23:43:56,107 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416761,416774] [2021-11-12 23:43:56,107 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416912,416925] [2021-11-12 23:43:56,108 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417062,417075] [2021-11-12 23:43:56,108 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417209,417222] [2021-11-12 23:43:56,108 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417360,417373] [2021-11-12 23:43:56,109 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417511,417524] [2021-11-12 23:43:56,109 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417659,417672] [2021-11-12 23:43:56,110 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417825,417838] [2021-11-12 23:43:56,110 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417994,418007] [2021-11-12 23:43:56,111 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418161,418174] [2021-11-12 23:43:56,111 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418329,418342] [2021-11-12 23:43:56,112 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418479,418492] [2021-11-12 23:43:56,112 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418626,418639] [2021-11-12 23:43:56,113 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418787,418800] [2021-11-12 23:43:56,113 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418957,418970] [2021-11-12 23:43:56,114 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[419119,419132] [2021-11-12 23:43:56,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:43:56,236 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:43:56,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2c01f1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:43:56, skipping insertion in model container [2021-11-12 23:43:56,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:43:56,238 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:43:56,245 INFO L158 Benchmark]: Toolchain (without parser) took 4663.65ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 74.4MB in the beginning and 125.3MB in the end (delta: -50.9MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2021-11-12 23:43:56,246 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory was 99.6MB in the beginning and 99.6MB in the end (delta: 29.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:43:56,247 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4657.70ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 74.4MB in the beginning and 125.3MB in the end (delta: -50.9MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2021-11-12 23:43:56,249 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory was 99.6MB in the beginning and 99.6MB in the end (delta: 29.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4657.70ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 74.4MB in the beginning and 125.3MB in the end (delta: -50.9MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7674]: 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/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 4426d364359557dc10cf7e8f346d379b7d379eaf4a1a095af818bcdb9a3f651d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:43:58,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:43:58,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:43:58,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:43:58,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:43:58,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:43:58,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:43:58,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:43:58,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:43:58,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:43:58,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:43:58,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:43:58,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:43:58,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:43:58,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:43:58,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:43:58,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:43:58,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:43:58,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:43:58,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:43:58,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:43:58,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:43:58,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:43:58,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:43:58,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:43:58,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:43:58,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:43:58,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:43:58,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:43:58,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:43:58,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:43:58,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:43:58,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:43:58,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:43:58,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:43:58,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:43:58,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:43:58,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:43:58,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:43:58,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:43:58,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:43:58,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:43:58,904 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:43:58,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:43:58,905 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:43:58,905 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:43:58,906 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:43:58,906 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:43:58,906 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:43:58,906 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:43:58,906 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:43:58,907 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:43:58,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:43:58,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:43:58,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:43:58,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:43:58,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:43:58,910 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:43:58,910 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:43:58,910 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:43:58,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:43:58,911 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:43:58,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:43:58,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:43:58,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:43:58,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:43:58,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:43:58,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:43:58,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:43:58,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:43:58,912 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:43:58,913 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:43:58,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:43:58,913 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:43:58,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:43:58,913 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4426d364359557dc10cf7e8f346d379b7d379eaf4a1a095af818bcdb9a3f651d [2021-11-12 23:43:59,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:43:59,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:43:59,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:43:59,348 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:43:59,349 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:43:59,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i [2021-11-12 23:43:59,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/data/ed4580adb/70ca0786d68e46c3b9d01dbc61f46fa9/FLAGcb3702152 [2021-11-12 23:44:00,634 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:44:00,636 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i [2021-11-12 23:44:00,708 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/data/ed4580adb/70ca0786d68e46c3b9d01dbc61f46fa9/FLAGcb3702152 [2021-11-12 23:44:00,912 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/data/ed4580adb/70ca0786d68e46c3b9d01dbc61f46fa9 [2021-11-12 23:44:00,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:44:00,920 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:44:00,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:44:00,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:44:00,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:44:00,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:44:00" (1/1) ... [2021-11-12 23:44:00,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2264a51d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:00, skipping insertion in model container [2021-11-12 23:44:00,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:44:00" (1/1) ... [2021-11-12 23:44:00,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:44:01,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:44:05,577 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[405731,405744] [2021-11-12 23:44:05,580 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[405876,405889] [2021-11-12 23:44:05,580 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406022,406035] [2021-11-12 23:44:05,582 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406187,406200] [2021-11-12 23:44:05,582 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406345,406358] [2021-11-12 23:44:05,583 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406503,406516] [2021-11-12 23:44:05,583 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406661,406674] [2021-11-12 23:44:05,584 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406821,406834] [2021-11-12 23:44:05,585 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406980,406993] [2021-11-12 23:44:05,585 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407119,407132] [2021-11-12 23:44:05,586 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407261,407274] [2021-11-12 23:44:05,587 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407410,407423] [2021-11-12 23:44:05,587 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407549,407562] [2021-11-12 23:44:05,588 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407704,407717] [2021-11-12 23:44:05,588 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407864,407877] [2021-11-12 23:44:05,589 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408015,408028] [2021-11-12 23:44:05,589 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408166,408179] [2021-11-12 23:44:05,590 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408318,408331] [2021-11-12 23:44:05,591 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408467,408480] [2021-11-12 23:44:05,592 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408615,408628] [2021-11-12 23:44:05,592 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408772,408785] [2021-11-12 23:44:05,593 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408921,408934] [2021-11-12 23:44:05,594 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409077,409090] [2021-11-12 23:44:05,597 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409230,409243] [2021-11-12 23:44:05,598 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409376,409389] [2021-11-12 23:44:05,598 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409519,409532] [2021-11-12 23:44:05,598 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409671,409684] [2021-11-12 23:44:05,599 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409817,409830] [2021-11-12 23:44:05,600 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409962,409975] [2021-11-12 23:44:05,602 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410116,410129] [2021-11-12 23:44:05,602 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410267,410280] [2021-11-12 23:44:05,603 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410422,410435] [2021-11-12 23:44:05,604 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410574,410587] [2021-11-12 23:44:05,605 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410729,410742] [2021-11-12 23:44:05,605 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410893,410906] [2021-11-12 23:44:05,606 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411049,411062] [2021-11-12 23:44:05,606 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411213,411226] [2021-11-12 23:44:05,606 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411355,411368] [2021-11-12 23:44:05,607 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411513,411526] [2021-11-12 23:44:05,608 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411680,411693] [2021-11-12 23:44:05,608 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411839,411852] [2021-11-12 23:44:05,609 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411998,412011] [2021-11-12 23:44:05,609 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412147,412160] [2021-11-12 23:44:05,610 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412294,412307] [2021-11-12 23:44:05,610 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412433,412446] [2021-11-12 23:44:05,611 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412596,412609] [2021-11-12 23:44:05,611 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412762,412775] [2021-11-12 23:44:05,613 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412926,412939] [2021-11-12 23:44:05,614 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413091,413104] [2021-11-12 23:44:05,614 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413256,413269] [2021-11-12 23:44:05,615 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413422,413435] [2021-11-12 23:44:05,615 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413587,413600] [2021-11-12 23:44:05,615 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413754,413767] [2021-11-12 23:44:05,616 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413914,413927] [2021-11-12 23:44:05,616 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414076,414089] [2021-11-12 23:44:05,617 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414235,414248] [2021-11-12 23:44:05,617 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414381,414394] [2021-11-12 23:44:05,618 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414524,414537] [2021-11-12 23:44:05,618 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414668,414681] [2021-11-12 23:44:05,619 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414811,414824] [2021-11-12 23:44:05,619 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414955,414968] [2021-11-12 23:44:05,620 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415096,415109] [2021-11-12 23:44:05,621 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415234,415247] [2021-11-12 23:44:05,660 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415392,415405] [2021-11-12 23:44:05,660 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415551,415564] [2021-11-12 23:44:05,661 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415707,415720] [2021-11-12 23:44:05,661 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415856,415869] [2021-11-12 23:44:05,662 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416008,416021] [2021-11-12 23:44:05,662 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416159,416172] [2021-11-12 23:44:05,663 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416308,416321] [2021-11-12 23:44:05,663 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416460,416473] [2021-11-12 23:44:05,664 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416608,416621] [2021-11-12 23:44:05,664 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416761,416774] [2021-11-12 23:44:05,665 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416912,416925] [2021-11-12 23:44:05,665 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417062,417075] [2021-11-12 23:44:05,666 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417209,417222] [2021-11-12 23:44:05,667 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417360,417373] [2021-11-12 23:44:05,667 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417511,417524] [2021-11-12 23:44:05,668 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417659,417672] [2021-11-12 23:44:05,669 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417825,417838] [2021-11-12 23:44:05,669 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417994,418007] [2021-11-12 23:44:05,670 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418161,418174] [2021-11-12 23:44:05,670 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418329,418342] [2021-11-12 23:44:05,671 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418479,418492] [2021-11-12 23:44:05,671 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418626,418639] [2021-11-12 23:44:05,672 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418787,418800] [2021-11-12 23:44:05,672 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418957,418970] [2021-11-12 23:44:05,673 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[419119,419132] [2021-11-12 23:44:05,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:44:05,786 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:44:05,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:44:06,329 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[405731,405744] [2021-11-12 23:44:06,330 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[405876,405889] [2021-11-12 23:44:06,330 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406022,406035] [2021-11-12 23:44:06,331 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406187,406200] [2021-11-12 23:44:06,331 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406345,406358] [2021-11-12 23:44:06,331 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406503,406516] [2021-11-12 23:44:06,332 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406661,406674] [2021-11-12 23:44:06,332 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406821,406834] [2021-11-12 23:44:06,333 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406980,406993] [2021-11-12 23:44:06,333 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407119,407132] [2021-11-12 23:44:06,334 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407261,407274] [2021-11-12 23:44:06,334 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407410,407423] [2021-11-12 23:44:06,335 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407549,407562] [2021-11-12 23:44:06,335 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407704,407717] [2021-11-12 23:44:06,335 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407864,407877] [2021-11-12 23:44:06,336 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408015,408028] [2021-11-12 23:44:06,336 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408166,408179] [2021-11-12 23:44:06,337 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408318,408331] [2021-11-12 23:44:06,337 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408467,408480] [2021-11-12 23:44:06,338 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408615,408628] [2021-11-12 23:44:06,338 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408772,408785] [2021-11-12 23:44:06,339 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408921,408934] [2021-11-12 23:44:06,339 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409077,409090] [2021-11-12 23:44:06,340 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409230,409243] [2021-11-12 23:44:06,340 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409376,409389] [2021-11-12 23:44:06,340 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409519,409532] [2021-11-12 23:44:06,341 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409671,409684] [2021-11-12 23:44:06,341 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409817,409830] [2021-11-12 23:44:06,342 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409962,409975] [2021-11-12 23:44:06,342 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410116,410129] [2021-11-12 23:44:06,343 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410267,410280] [2021-11-12 23:44:06,343 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410422,410435] [2021-11-12 23:44:06,344 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410574,410587] [2021-11-12 23:44:06,344 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410729,410742] [2021-11-12 23:44:06,344 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410893,410906] [2021-11-12 23:44:06,345 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411049,411062] [2021-11-12 23:44:06,345 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411213,411226] [2021-11-12 23:44:06,346 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411355,411368] [2021-11-12 23:44:06,346 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411513,411526] [2021-11-12 23:44:06,347 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411680,411693] [2021-11-12 23:44:06,347 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411839,411852] [2021-11-12 23:44:06,348 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411998,412011] [2021-11-12 23:44:06,348 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412147,412160] [2021-11-12 23:44:06,348 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412294,412307] [2021-11-12 23:44:06,349 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412433,412446] [2021-11-12 23:44:06,349 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412596,412609] [2021-11-12 23:44:06,350 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412762,412775] [2021-11-12 23:44:06,350 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412926,412939] [2021-11-12 23:44:06,351 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413091,413104] [2021-11-12 23:44:06,351 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413256,413269] [2021-11-12 23:44:06,352 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413422,413435] [2021-11-12 23:44:06,352 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413587,413600] [2021-11-12 23:44:06,352 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413754,413767] [2021-11-12 23:44:06,353 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413914,413927] [2021-11-12 23:44:06,353 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414076,414089] [2021-11-12 23:44:06,354 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414235,414248] [2021-11-12 23:44:06,354 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414381,414394] [2021-11-12 23:44:06,354 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414524,414537] [2021-11-12 23:44:06,355 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414668,414681] [2021-11-12 23:44:06,355 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414811,414824] [2021-11-12 23:44:06,356 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414955,414968] [2021-11-12 23:44:06,356 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415096,415109] [2021-11-12 23:44:06,357 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415234,415247] [2021-11-12 23:44:06,357 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415392,415405] [2021-11-12 23:44:06,358 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415551,415564] [2021-11-12 23:44:06,358 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415707,415720] [2021-11-12 23:44:06,358 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415856,415869] [2021-11-12 23:44:06,359 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416008,416021] [2021-11-12 23:44:06,359 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416159,416172] [2021-11-12 23:44:06,360 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416308,416321] [2021-11-12 23:44:06,360 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416460,416473] [2021-11-12 23:44:06,361 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416608,416621] [2021-11-12 23:44:06,361 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416761,416774] [2021-11-12 23:44:06,362 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416912,416925] [2021-11-12 23:44:06,362 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417062,417075] [2021-11-12 23:44:06,362 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417209,417222] [2021-11-12 23:44:06,363 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417360,417373] [2021-11-12 23:44:06,363 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417511,417524] [2021-11-12 23:44:06,364 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417659,417672] [2021-11-12 23:44:06,364 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417825,417838] [2021-11-12 23:44:06,365 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417994,418007] [2021-11-12 23:44:06,365 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418161,418174] [2021-11-12 23:44:06,366 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418329,418342] [2021-11-12 23:44:06,366 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418479,418492] [2021-11-12 23:44:06,366 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418626,418639] [2021-11-12 23:44:06,367 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418787,418800] [2021-11-12 23:44:06,367 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418957,418970] [2021-11-12 23:44:06,368 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[419119,419132] [2021-11-12 23:44:06,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:44:06,394 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:44:06,951 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[405731,405744] [2021-11-12 23:44:06,951 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[405876,405889] [2021-11-12 23:44:06,952 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406022,406035] [2021-11-12 23:44:06,952 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406187,406200] [2021-11-12 23:44:06,953 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406345,406358] [2021-11-12 23:44:06,953 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406503,406516] [2021-11-12 23:44:06,954 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406661,406674] [2021-11-12 23:44:06,954 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406821,406834] [2021-11-12 23:44:06,955 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[406980,406993] [2021-11-12 23:44:06,955 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407119,407132] [2021-11-12 23:44:06,955 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407261,407274] [2021-11-12 23:44:06,956 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407410,407423] [2021-11-12 23:44:06,956 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407549,407562] [2021-11-12 23:44:06,957 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407704,407717] [2021-11-12 23:44:06,957 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[407864,407877] [2021-11-12 23:44:06,958 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408015,408028] [2021-11-12 23:44:06,958 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408166,408179] [2021-11-12 23:44:06,958 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408318,408331] [2021-11-12 23:44:06,959 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408467,408480] [2021-11-12 23:44:06,959 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408615,408628] [2021-11-12 23:44:06,960 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408772,408785] [2021-11-12 23:44:06,960 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[408921,408934] [2021-11-12 23:44:06,961 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409077,409090] [2021-11-12 23:44:06,961 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409230,409243] [2021-11-12 23:44:06,961 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409376,409389] [2021-11-12 23:44:06,962 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409519,409532] [2021-11-12 23:44:06,962 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409671,409684] [2021-11-12 23:44:06,963 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409817,409830] [2021-11-12 23:44:06,963 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[409962,409975] [2021-11-12 23:44:06,964 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410116,410129] [2021-11-12 23:44:06,964 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410267,410280] [2021-11-12 23:44:06,964 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410422,410435] [2021-11-12 23:44:06,965 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410574,410587] [2021-11-12 23:44:06,965 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410729,410742] [2021-11-12 23:44:06,966 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[410893,410906] [2021-11-12 23:44:06,966 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411049,411062] [2021-11-12 23:44:06,967 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411213,411226] [2021-11-12 23:44:06,967 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411355,411368] [2021-11-12 23:44:06,967 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411513,411526] [2021-11-12 23:44:06,968 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411680,411693] [2021-11-12 23:44:06,968 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411839,411852] [2021-11-12 23:44:06,969 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[411998,412011] [2021-11-12 23:44:06,969 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412147,412160] [2021-11-12 23:44:06,970 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412294,412307] [2021-11-12 23:44:06,970 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412433,412446] [2021-11-12 23:44:06,970 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412596,412609] [2021-11-12 23:44:06,971 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412762,412775] [2021-11-12 23:44:06,971 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[412926,412939] [2021-11-12 23:44:06,972 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413091,413104] [2021-11-12 23:44:06,972 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413256,413269] [2021-11-12 23:44:06,973 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413422,413435] [2021-11-12 23:44:06,973 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413587,413600] [2021-11-12 23:44:06,974 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413754,413767] [2021-11-12 23:44:06,975 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[413914,413927] [2021-11-12 23:44:06,975 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414076,414089] [2021-11-12 23:44:06,976 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414235,414248] [2021-11-12 23:44:06,976 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414381,414394] [2021-11-12 23:44:06,976 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414524,414537] [2021-11-12 23:44:06,977 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414668,414681] [2021-11-12 23:44:06,977 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414811,414824] [2021-11-12 23:44:06,978 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[414955,414968] [2021-11-12 23:44:06,978 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415096,415109] [2021-11-12 23:44:06,978 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415234,415247] [2021-11-12 23:44:06,981 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415392,415405] [2021-11-12 23:44:06,982 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415551,415564] [2021-11-12 23:44:06,982 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415707,415720] [2021-11-12 23:44:06,983 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[415856,415869] [2021-11-12 23:44:06,983 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416008,416021] [2021-11-12 23:44:06,983 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416159,416172] [2021-11-12 23:44:06,984 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416308,416321] [2021-11-12 23:44:06,984 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416460,416473] [2021-11-12 23:44:06,984 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416608,416621] [2021-11-12 23:44:06,985 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416761,416774] [2021-11-12 23:44:06,985 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[416912,416925] [2021-11-12 23:44:06,985 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417062,417075] [2021-11-12 23:44:06,986 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417209,417222] [2021-11-12 23:44:06,987 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417360,417373] [2021-11-12 23:44:06,987 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417511,417524] [2021-11-12 23:44:06,987 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417659,417672] [2021-11-12 23:44:06,989 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417825,417838] [2021-11-12 23:44:06,993 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[417994,418007] [2021-11-12 23:44:06,993 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418161,418174] [2021-11-12 23:44:06,994 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418329,418342] [2021-11-12 23:44:06,995 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418479,418492] [2021-11-12 23:44:06,995 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418626,418639] [2021-11-12 23:44:06,995 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418787,418800] [2021-11-12 23:44:06,996 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[418957,418970] [2021-11-12 23:44:06,996 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_6993e2bb-dcb4-4add-ba5e-de7eb8601050/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i[419119,419132] [2021-11-12 23:44:06,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:44:07,312 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:44:07,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:07 WrapperNode [2021-11-12 23:44:07,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:44:07,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:44:07,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:44:07,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:44:07,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:07" (1/1) ... [2021-11-12 23:44:07,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:07" (1/1) ... [2021-11-12 23:44:07,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:44:07,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:44:07,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:44:07,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:44:07,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:07" (1/1) ... [2021-11-12 23:44:07,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:07" (1/1) ... [2021-11-12 23:44:07,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:07" (1/1) ... [2021-11-12 23:44:07,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:07" (1/1) ... [2021-11-12 23:44:07,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:07" (1/1) ... [2021-11-12 23:44:07,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:07" (1/1) ... [2021-11-12 23:44:07,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:07" (1/1) ... [2021-11-12 23:44:07,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:44:07,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:44:07,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:44:07,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:44:07,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:07" (1/1) ... [2021-11-12 23:44:07,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:44:08,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:44:08,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:44:08,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:44:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-12 23:44:08,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-12 23:44:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 23:44:08,074 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 23:44:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:44:08,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:44:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-12 23:44:08,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-12 23:44:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2021-11-12 23:44:08,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2021-11-12 23:44:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-12 23:44:08,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-12 23:44:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2021-11-12 23:44:08,076 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2021-11-12 23:44:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-12 23:44:08,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-12 23:44:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-12 23:44:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 23:44:08,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 23:44:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 23:44:08,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 23:44:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-12 23:44:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-12 23:44:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure tda1004x_writereg [2021-11-12 23:44:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure tda1004x_writereg [2021-11-12 23:44:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:44:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 23:44:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:44:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:44:08,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:44:08,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-12 23:44:08,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-12 23:44:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-12 23:44:08,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-12 23:44:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-12 23:44:08,080 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-12 23:44:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-12 23:44:08,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-12 23:44:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 23:44:08,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 23:44:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-12 23:44:08,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-12 23:44:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-12 23:44:08,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-12 23:44:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_frontend_detach [2021-11-12 23:44:08,082 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_frontend_detach [2021-11-12 23:44:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 23:44:08,082 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 23:44:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-12 23:44:08,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-12 23:44:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-12 23:44:08,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-12 23:44:08,083 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_stop_iso_xfer [2021-11-12 23:44:08,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_stop_iso_xfer [2021-11-12 23:44:08,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-12 23:44:08,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-12 23:44:08,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-12 23:44:08,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-12 23:44:08,084 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_cmd [2021-11-12 23:44:08,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_cmd [2021-11-12 23:44:08,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:44:08,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 23:44:08,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 23:44:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:44:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 23:44:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 23:44:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 23:44:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-12 23:44:08,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-12 23:44:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-12 23:44:08,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-12 23:44:08,086 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2021-11-12 23:44:08,086 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2021-11-12 23:44:08,086 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_adapter [2021-11-12 23:44:08,086 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_adapter [2021-11-12 23:44:08,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 23:44:08,087 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_free_iso_urbs [2021-11-12 23:44:08,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_free_iso_urbs [2021-11-12 23:44:08,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:44:08,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:44:08,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:44:08,087 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-12 23:44:08,088 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-12 23:44:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:44:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:44:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 23:44:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:44:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 23:44:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 23:44:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 23:44:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2021-11-12 23:44:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2021-11-12 23:44:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 23:44:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 23:44:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-12 23:44:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-12 23:44:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-12 23:44:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-12 23:44:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:44:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-12 23:44:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-12 23:44:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_semusb_of_ttusb [2021-11-12 23:44:08,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_semusb_of_ttusb [2021-11-12 23:44:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:44:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:44:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:44:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:44:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-11-12 23:44:08,092 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-11-12 23:44:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:44:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-12 23:44:08,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-12 23:44:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-12 23:44:08,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-12 23:44:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-12 23:44:08,096 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-12 23:44:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 23:44:08,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 23:44:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 23:44:08,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 23:44:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-12 23:44:08,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-12 23:44:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure master_xfer [2021-11-12 23:44:08,105 INFO L138 BoogieDeclarations]: Found implementation of procedure master_xfer [2021-11-12 23:44:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-11-12 23:44:08,105 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-11-12 23:44:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-12 23:44:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-12 23:44:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 23:44:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 23:44:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-12 23:44:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-12 23:44:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-12 23:44:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-12 23:44:08,107 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-12 23:44:08,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-12 23:44:08,107 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:44:08,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 23:44:08,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-12 23:44:08,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-12 23:44:08,107 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 23:44:08,108 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 23:44:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 23:44:08,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 23:44:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-12 23:44:08,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-12 23:44:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 23:44:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_semi2c_of_ttusb [2021-11-12 23:44:08,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_semi2c_of_ttusb [2021-11-12 23:44:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 23:44:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 23:44:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 23:44:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-11-12 23:44:08,109 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-11-12 23:44:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 23:44:08,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 23:44:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-12 23:44:08,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-12 23:44:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_semi2c_of_ttusb [2021-11-12 23:44:08,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_semi2c_of_ttusb [2021-11-12 23:44:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_disconnect [2021-11-12 23:44:08,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_disconnect [2021-11-12 23:44:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2021-11-12 23:44:08,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2021-11-12 23:44:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 23:44:08,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 23:44:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-12 23:44:08,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-12 23:44:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2021-11-12 23:44:08,112 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2021-11-12 23:44:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_result [2021-11-12 23:44:08,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_result [2021-11-12 23:44:11,490 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 23:44:53,551 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:44:53,555 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-12 23:44:53,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:44:53 BoogieIcfgContainer [2021-11-12 23:44:53,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:44:53,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:44:53,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:44:53,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:44:53,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:44:00" (1/3) ... [2021-11-12 23:44:53,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51dabec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:44:53, skipping insertion in model container [2021-11-12 23:44:53,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:07" (2/3) ... [2021-11-12 23:44:53,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51dabec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:44:53, skipping insertion in model container [2021-11-12 23:44:53,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:44:53" (3/3) ... [2021-11-12 23:44:53,569 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko.cil.i [2021-11-12 23:44:53,576 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:44:53,576 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-11-12 23:44:53,656 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:44:53,662 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:44:53,663 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-11-12 23:44:53,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 1174 states, 820 states have (on average 1.3487804878048781) internal successors, (1106), 867 states have internal predecessors, (1106), 255 states have call successors, (255), 71 states have call predecessors, (255), 70 states have return successors, (251), 250 states have call predecessors, (251), 251 states have call successors, (251) [2021-11-12 23:44:53,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-12 23:44:53,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:53,716 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:44:53,716 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:44:53,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:53,721 INFO L85 PathProgramCache]: Analyzing trace with hash -783188082, now seen corresponding path program 1 times [2021-11-12 23:44:53,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:53,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707418588] [2021-11-12 23:44:53,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:53,748 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:53,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:53,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:53,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:44:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:56,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 1440 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:44:56,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:58,049 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:44:58,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:58,827 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:44:58,828 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:58,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707418588] [2021-11-12 23:44:58,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707418588] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:58,829 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:58,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:44:58,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379058624] [2021-11-12 23:44:58,832 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:58,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:44:58,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:58,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:44:58,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:44:58,873 INFO L87 Difference]: Start difference. First operand has 1174 states, 820 states have (on average 1.3487804878048781) internal successors, (1106), 867 states have internal predecessors, (1106), 255 states have call successors, (255), 71 states have call predecessors, (255), 70 states have return successors, (251), 250 states have call predecessors, (251), 251 states have call successors, (251) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-12 23:44:59,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:59,241 INFO L93 Difference]: Finished difference Result 2296 states and 3249 transitions. [2021-11-12 23:44:59,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:44:59,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 71 [2021-11-12 23:44:59,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:59,276 INFO L225 Difference]: With dead ends: 2296 [2021-11-12 23:44:59,276 INFO L226 Difference]: Without dead ends: 1157 [2021-11-12 23:44:59,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:44:59,296 INFO L933 BasicCegarLoop]: 1573 mSDtfsCounter, 1521 mSDsluCounter, 3142 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 4715 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.97ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.35ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:59,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1523 Valid, 4715 Invalid, 2 Unknown, 0 Unchecked, 56.97ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 17.35ms Time] [2021-11-12 23:44:59,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2021-11-12 23:44:59,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1157. [2021-11-12 23:44:59,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 810 states have (on average 1.3074074074074074) internal successors, (1059), 853 states have internal predecessors, (1059), 251 states have call successors, (251), 70 states have call predecessors, (251), 69 states have return successors, (249), 248 states have call predecessors, (249), 249 states have call successors, (249) [2021-11-12 23:44:59,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1559 transitions. [2021-11-12 23:44:59,503 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1559 transitions. Word has length 71 [2021-11-12 23:44:59,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:59,505 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1559 transitions. [2021-11-12 23:44:59,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-12 23:44:59,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1559 transitions. [2021-11-12 23:44:59,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-12 23:44:59,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:59,511 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:44:59,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:59,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:59,736 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:44:59,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:59,736 INFO L85 PathProgramCache]: Analyzing trace with hash 463776549, now seen corresponding path program 1 times [2021-11-12 23:44:59,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:59,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815059855] [2021-11-12 23:44:59,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:59,742 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:59,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:59,743 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:59,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:45:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:02,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:45:02,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:03,915 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:45:03,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:04,657 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:45:04,657 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:45:04,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815059855] [2021-11-12 23:45:04,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [815059855] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:45:04,658 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:45:04,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:45:04,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142774566] [2021-11-12 23:45:04,659 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:45:04,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:45:04,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:45:04,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:45:04,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:45:04,662 INFO L87 Difference]: Start difference. First operand 1157 states and 1559 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 23:45:04,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:04,830 INFO L93 Difference]: Finished difference Result 1157 states and 1559 transitions. [2021-11-12 23:45:04,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:45:04,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 77 [2021-11-12 23:45:04,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:04,841 INFO L225 Difference]: With dead ends: 1157 [2021-11-12 23:45:04,841 INFO L226 Difference]: Without dead ends: 1155 [2021-11-12 23:45:04,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:45:04,843 INFO L933 BasicCegarLoop]: 1555 mSDtfsCounter, 1497 mSDsluCounter, 3106 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 4661 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.25ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.12ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:04,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1499 Valid, 4661 Invalid, 2 Unknown, 0 Unchecked, 16.25ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 17.12ms Time] [2021-11-12 23:45:04,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2021-11-12 23:45:04,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1155. [2021-11-12 23:45:04,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 809 states have (on average 1.3065512978986402) internal successors, (1057), 851 states have internal predecessors, (1057), 251 states have call successors, (251), 70 states have call predecessors, (251), 69 states have return successors, (249), 248 states have call predecessors, (249), 249 states have call successors, (249) [2021-11-12 23:45:04,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1557 transitions. [2021-11-12 23:45:04,916 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1557 transitions. Word has length 77 [2021-11-12 23:45:04,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:04,917 INFO L470 AbstractCegarLoop]: Abstraction has 1155 states and 1557 transitions. [2021-11-12 23:45:04,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 23:45:04,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1557 transitions. [2021-11-12 23:45:04,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-12 23:45:04,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:04,921 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:04,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:05,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:45:05,136 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:45:05,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:05,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1246769642, now seen corresponding path program 1 times [2021-11-12 23:45:05,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:45:05,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113228004] [2021-11-12 23:45:05,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:05,142 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:45:05,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:45:05,143 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:45:05,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:45:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:07,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:45:07,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:09,247 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:45:09,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:10,030 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:45:10,031 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:45:10,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113228004] [2021-11-12 23:45:10,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113228004] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:45:10,031 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:45:10,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:45:10,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427483727] [2021-11-12 23:45:10,032 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:45:10,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:45:10,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:45:10,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:45:10,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:45:10,034 INFO L87 Difference]: Start difference. First operand 1155 states and 1557 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 23:45:10,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:10,201 INFO L93 Difference]: Finished difference Result 1155 states and 1557 transitions. [2021-11-12 23:45:10,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:45:10,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 83 [2021-11-12 23:45:10,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:10,212 INFO L225 Difference]: With dead ends: 1155 [2021-11-12 23:45:10,212 INFO L226 Difference]: Without dead ends: 1153 [2021-11-12 23:45:10,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:45:10,216 INFO L933 BasicCegarLoop]: 1553 mSDtfsCounter, 1489 mSDsluCounter, 3102 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 4655 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.74ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.80ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:10,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1491 Valid, 4655 Invalid, 2 Unknown, 0 Unchecked, 14.74ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 17.80ms Time] [2021-11-12 23:45:10,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2021-11-12 23:45:10,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1153. [2021-11-12 23:45:10,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 808 states have (on average 1.3056930693069306) internal successors, (1055), 849 states have internal predecessors, (1055), 251 states have call successors, (251), 70 states have call predecessors, (251), 69 states have return successors, (249), 248 states have call predecessors, (249), 249 states have call successors, (249) [2021-11-12 23:45:10,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1555 transitions. [2021-11-12 23:45:10,291 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1555 transitions. Word has length 83 [2021-11-12 23:45:10,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:10,293 INFO L470 AbstractCegarLoop]: Abstraction has 1153 states and 1555 transitions. [2021-11-12 23:45:10,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 23:45:10,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1555 transitions. [2021-11-12 23:45:10,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-12 23:45:10,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:10,300 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:10,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:10,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:45:10,520 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:45:10,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:10,520 INFO L85 PathProgramCache]: Analyzing trace with hash 209600467, now seen corresponding path program 1 times [2021-11-12 23:45:10,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:45:10,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69706421] [2021-11-12 23:45:10,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:10,523 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:45:10,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:45:10,524 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:45:10,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:45:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:13,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:45:13,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:14,607 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:45:14,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:15,411 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:45:15,411 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:45:15,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69706421] [2021-11-12 23:45:15,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69706421] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:45:15,412 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:45:15,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:45:15,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479522309] [2021-11-12 23:45:15,412 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:45:15,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:45:15,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:45:15,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:45:15,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:45:15,414 INFO L87 Difference]: Start difference. First operand 1153 states and 1555 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-12 23:45:15,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:15,688 INFO L93 Difference]: Finished difference Result 1153 states and 1555 transitions. [2021-11-12 23:45:15,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:45:15,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 89 [2021-11-12 23:45:15,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:15,705 INFO L225 Difference]: With dead ends: 1153 [2021-11-12 23:45:15,705 INFO L226 Difference]: Without dead ends: 1151 [2021-11-12 23:45:15,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:45:15,709 INFO L933 BasicCegarLoop]: 1551 mSDtfsCounter, 1481 mSDsluCounter, 3098 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 4649 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.02ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.14ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:15,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1483 Valid, 4649 Invalid, 2 Unknown, 0 Unchecked, 15.02ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 17.14ms Time] [2021-11-12 23:45:15,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2021-11-12 23:45:15,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1151. [2021-11-12 23:45:15,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 807 states have (on average 1.304832713754647) internal successors, (1053), 847 states have internal predecessors, (1053), 251 states have call successors, (251), 70 states have call predecessors, (251), 69 states have return successors, (249), 248 states have call predecessors, (249), 249 states have call successors, (249) [2021-11-12 23:45:15,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1553 transitions. [2021-11-12 23:45:15,780 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1553 transitions. Word has length 89 [2021-11-12 23:45:15,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:15,781 INFO L470 AbstractCegarLoop]: Abstraction has 1151 states and 1553 transitions. [2021-11-12 23:45:15,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-12 23:45:15,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1553 transitions. [2021-11-12 23:45:15,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-12 23:45:15,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:15,783 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:15,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:15,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:45:15,998 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:45:15,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:15,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1455552901, now seen corresponding path program 1 times [2021-11-12 23:45:16,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:45:16,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [756930726] [2021-11-12 23:45:16,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:16,001 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:45:16,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:45:16,002 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:45:16,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:45:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:18,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 1476 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:45:18,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:20,130 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:45:20,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:20,843 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:45:20,843 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:45:20,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [756930726] [2021-11-12 23:45:20,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [756930726] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:45:20,844 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:45:20,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:45:20,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941616045] [2021-11-12 23:45:20,844 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:45:20,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:45:20,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:45:20,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:45:20,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:45:20,846 INFO L87 Difference]: Start difference. First operand 1151 states and 1553 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-12 23:45:21,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:21,001 INFO L93 Difference]: Finished difference Result 1151 states and 1553 transitions. [2021-11-12 23:45:21,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:45:21,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 95 [2021-11-12 23:45:21,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:21,015 INFO L225 Difference]: With dead ends: 1151 [2021-11-12 23:45:21,015 INFO L226 Difference]: Without dead ends: 1149 [2021-11-12 23:45:21,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:45:21,017 INFO L933 BasicCegarLoop]: 1549 mSDtfsCounter, 1476 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.71ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.32ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:21,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1478 Valid, 3096 Invalid, 2 Unknown, 0 Unchecked, 9.71ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 22.32ms Time] [2021-11-12 23:45:21,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2021-11-12 23:45:21,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1149. [2021-11-12 23:45:21,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 806 states have (on average 1.303970223325062) internal successors, (1051), 845 states have internal predecessors, (1051), 251 states have call successors, (251), 70 states have call predecessors, (251), 69 states have return successors, (249), 248 states have call predecessors, (249), 249 states have call successors, (249) [2021-11-12 23:45:21,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1551 transitions. [2021-11-12 23:45:21,092 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1551 transitions. Word has length 95 [2021-11-12 23:45:21,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:21,093 INFO L470 AbstractCegarLoop]: Abstraction has 1149 states and 1551 transitions. [2021-11-12 23:45:21,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-12 23:45:21,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1551 transitions. [2021-11-12 23:45:21,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-12 23:45:21,095 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:21,095 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:21,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:21,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:45:21,312 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:45:21,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:21,312 INFO L85 PathProgramCache]: Analyzing trace with hash 2073824023, now seen corresponding path program 1 times [2021-11-12 23:45:21,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:45:21,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694020978] [2021-11-12 23:45:21,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:21,314 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:45:21,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:45:21,315 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:45:21,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:45:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:23,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 1485 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:45:23,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:25,470 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:45:25,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:45:26,192 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:45:26,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694020978] [2021-11-12 23:45:26,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694020978] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:45:26,193 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:45:26,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:45:26,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920443166] [2021-11-12 23:45:26,193 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:45:26,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:45:26,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:45:26,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:45:26,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:45:26,195 INFO L87 Difference]: Start difference. First operand 1149 states and 1551 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-12 23:45:26,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:26,360 INFO L93 Difference]: Finished difference Result 1149 states and 1551 transitions. [2021-11-12 23:45:26,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:45:26,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 101 [2021-11-12 23:45:26,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:26,369 INFO L225 Difference]: With dead ends: 1149 [2021-11-12 23:45:26,369 INFO L226 Difference]: Without dead ends: 1147 [2021-11-12 23:45:26,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:45:26,372 INFO L933 BasicCegarLoop]: 1547 mSDtfsCounter, 1468 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.70ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:26,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1470 Valid, 3092 Invalid, 2 Unknown, 0 Unchecked, 12.05ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 15.70ms Time] [2021-11-12 23:45:26,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2021-11-12 23:45:26,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1147. [2021-11-12 23:45:26,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 805 states have (on average 1.3031055900621118) internal successors, (1049), 843 states have internal predecessors, (1049), 251 states have call successors, (251), 70 states have call predecessors, (251), 69 states have return successors, (249), 248 states have call predecessors, (249), 249 states have call successors, (249) [2021-11-12 23:45:26,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1549 transitions. [2021-11-12 23:45:26,517 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1549 transitions. Word has length 101 [2021-11-12 23:45:26,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:26,518 INFO L470 AbstractCegarLoop]: Abstraction has 1147 states and 1549 transitions. [2021-11-12 23:45:26,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-12 23:45:26,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1549 transitions. [2021-11-12 23:45:26,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-12 23:45:26,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:26,520 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:26,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:26,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:45:26,724 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:45:26,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:26,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1625363093, now seen corresponding path program 1 times [2021-11-12 23:45:26,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:45:26,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201082609] [2021-11-12 23:45:26,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:26,727 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:45:26,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:45:26,728 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:45:26,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:45:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:29,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 1639 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 23:45:29,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:32,406 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-12 23:45:32,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:37,795 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-12 23:45:37,795 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:45:37,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201082609] [2021-11-12 23:45:37,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201082609] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:37,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:45:37,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [18] total 33 [2021-11-12 23:45:37,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481423793] [2021-11-12 23:45:37,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:45:37,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-12 23:45:37,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:45:37,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-12 23:45:37,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=977, Unknown=0, NotChecked=0, Total=1056 [2021-11-12 23:45:37,798 INFO L87 Difference]: Start difference. First operand 1147 states and 1549 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 7 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2021-11-12 23:45:45,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:45,408 INFO L93 Difference]: Finished difference Result 2324 states and 3151 transitions. [2021-11-12 23:45:45,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-12 23:45:45,409 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 7 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 115 [2021-11-12 23:45:45,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:45,421 INFO L225 Difference]: With dead ends: 2324 [2021-11-12 23:45:45,422 INFO L226 Difference]: Without dead ends: 1191 [2021-11-12 23:45:45,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=289, Invalid=1691, Unknown=0, NotChecked=0, Total=1980 [2021-11-12 23:45:45,430 INFO L933 BasicCegarLoop]: 1541 mSDtfsCounter, 90 mSDsluCounter, 24410 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4285.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 25951 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.49ms SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4430.82ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:45,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 25951 Invalid, 859 Unknown, 0 Unchecked, 52.49ms Time], IncrementalHoareTripleChecker [278 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 4430.82ms Time] [2021-11-12 23:45:45,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2021-11-12 23:45:45,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1167. [2021-11-12 23:45:45,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 819 states have (on average 1.297924297924298) internal successors, (1063), 857 states have internal predecessors, (1063), 257 states have call successors, (257), 70 states have call predecessors, (257), 69 states have return successors, (255), 254 states have call predecessors, (255), 255 states have call successors, (255) [2021-11-12 23:45:45,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1575 transitions. [2021-11-12 23:45:45,525 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1575 transitions. Word has length 115 [2021-11-12 23:45:45,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:45,526 INFO L470 AbstractCegarLoop]: Abstraction has 1167 states and 1575 transitions. [2021-11-12 23:45:45,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 7 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2021-11-12 23:45:45,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1575 transitions. [2021-11-12 23:45:45,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-12 23:45:45,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:45,529 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:45,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:45,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:45:45,743 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:45:45,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:45,744 INFO L85 PathProgramCache]: Analyzing trace with hash 272133673, now seen corresponding path program 1 times [2021-11-12 23:45:45,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:45:45,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443812381] [2021-11-12 23:45:45,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:45,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:45:45,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:45:45,747 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:45:45,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:45:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:48,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:45:48,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:49,594 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-12 23:45:49,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:50,448 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-12 23:45:50,448 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:45:50,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443812381] [2021-11-12 23:45:50,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443812381] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:50,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:45:50,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-11-12 23:45:50,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791911918] [2021-11-12 23:45:50,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:45:50,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:45:50,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:45:50,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:45:50,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:45:50,450 INFO L87 Difference]: Start difference. First operand 1167 states and 1575 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-12 23:45:52,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:52,278 INFO L93 Difference]: Finished difference Result 1590 states and 2102 transitions. [2021-11-12 23:45:52,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:45:52,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 115 [2021-11-12 23:45:52,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:52,287 INFO L225 Difference]: With dead ends: 1590 [2021-11-12 23:45:52,288 INFO L226 Difference]: Without dead ends: 1189 [2021-11-12 23:45:52,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:45:52,291 INFO L933 BasicCegarLoop]: 1591 mSDtfsCounter, 826 mSDsluCounter, 5191 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1378.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 6782 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.30ms SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1500.52ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:52,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [826 Valid, 6782 Invalid, 455 Unknown, 0 Unchecked, 17.30ms Time], IncrementalHoareTripleChecker [324 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1500.52ms Time] [2021-11-12 23:45:52,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2021-11-12 23:45:52,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1165. [2021-11-12 23:45:52,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 818 states have (on average 1.2970660146699267) internal successors, (1061), 856 states have internal predecessors, (1061), 256 states have call successors, (256), 70 states have call predecessors, (256), 69 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:45:52,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1571 transitions. [2021-11-12 23:45:52,379 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1571 transitions. Word has length 115 [2021-11-12 23:45:52,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:52,379 INFO L470 AbstractCegarLoop]: Abstraction has 1165 states and 1571 transitions. [2021-11-12 23:45:52,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-12 23:45:52,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1571 transitions. [2021-11-12 23:45:52,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-12 23:45:52,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:52,381 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:52,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:52,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:45:52,601 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:45:52,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:52,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1891921417, now seen corresponding path program 1 times [2021-11-12 23:45:52,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:45:52,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935053063] [2021-11-12 23:45:52,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:52,604 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:45:52,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:45:52,605 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:45:52,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 23:45:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:55,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 1494 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:45:55,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:45:56,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:57,623 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:45:57,623 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:45:57,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935053063] [2021-11-12 23:45:57,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935053063] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:45:57,624 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:45:57,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:45:57,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956085631] [2021-11-12 23:45:57,625 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:45:57,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:45:57,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:45:57,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:45:57,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:45:57,626 INFO L87 Difference]: Start difference. First operand 1165 states and 1571 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 23:45:57,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:57,788 INFO L93 Difference]: Finished difference Result 1165 states and 1571 transitions. [2021-11-12 23:45:57,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:45:57,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 107 [2021-11-12 23:45:57,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:57,797 INFO L225 Difference]: With dead ends: 1165 [2021-11-12 23:45:57,798 INFO L226 Difference]: Without dead ends: 1163 [2021-11-12 23:45:57,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:45:57,799 INFO L933 BasicCegarLoop]: 1545 mSDtfsCounter, 1460 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.41ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:57,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1462 Valid, 3088 Invalid, 2 Unknown, 0 Unchecked, 7.12ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 28.41ms Time] [2021-11-12 23:45:57,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2021-11-12 23:45:57,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1163. [2021-11-12 23:45:57,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 817 states have (on average 1.2962056303549572) internal successors, (1059), 854 states have internal predecessors, (1059), 256 states have call successors, (256), 70 states have call predecessors, (256), 69 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:45:57,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1569 transitions. [2021-11-12 23:45:57,887 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1569 transitions. Word has length 107 [2021-11-12 23:45:57,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:57,888 INFO L470 AbstractCegarLoop]: Abstraction has 1163 states and 1569 transitions. [2021-11-12 23:45:57,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 23:45:57,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1569 transitions. [2021-11-12 23:45:57,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-12 23:45:57,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:57,891 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:57,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:58,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:45:58,105 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:45:58,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:58,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1196953089, now seen corresponding path program 1 times [2021-11-12 23:45:58,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:45:58,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555984226] [2021-11-12 23:45:58,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:58,107 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:45:58,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:45:58,108 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:45:58,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 23:46:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:00,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 1503 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:46:00,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:02,440 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:46:02,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:03,218 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:46:03,219 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:46:03,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555984226] [2021-11-12 23:46:03,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555984226] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:46:03,220 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:46:03,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:46:03,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359720334] [2021-11-12 23:46:03,220 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:46:03,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:46:03,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:46:03,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:46:03,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:46:03,222 INFO L87 Difference]: Start difference. First operand 1163 states and 1569 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-12 23:46:03,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:03,443 INFO L93 Difference]: Finished difference Result 1163 states and 1569 transitions. [2021-11-12 23:46:03,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:46:03,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 113 [2021-11-12 23:46:03,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:03,454 INFO L225 Difference]: With dead ends: 1163 [2021-11-12 23:46:03,454 INFO L226 Difference]: Without dead ends: 1161 [2021-11-12 23:46:03,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:46:03,459 INFO L933 BasicCegarLoop]: 1543 mSDtfsCounter, 1453 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 4617 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.55ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.64ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:03,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1455 Valid, 4617 Invalid, 2 Unknown, 0 Unchecked, 9.55ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 13.64ms Time] [2021-11-12 23:46:03,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2021-11-12 23:46:03,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1161. [2021-11-12 23:46:03,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 816 states have (on average 1.295343137254902) internal successors, (1057), 852 states have internal predecessors, (1057), 256 states have call successors, (256), 70 states have call predecessors, (256), 69 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:46:03,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1567 transitions. [2021-11-12 23:46:03,555 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1567 transitions. Word has length 113 [2021-11-12 23:46:03,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:03,556 INFO L470 AbstractCegarLoop]: Abstraction has 1161 states and 1567 transitions. [2021-11-12 23:46:03,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-12 23:46:03,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1567 transitions. [2021-11-12 23:46:03,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-12 23:46:03,558 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:03,558 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:03,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:03,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:46:03,783 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:46:03,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:03,784 INFO L85 PathProgramCache]: Analyzing trace with hash 779468130, now seen corresponding path program 1 times [2021-11-12 23:46:03,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:03,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324360368] [2021-11-12 23:46:03,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:03,786 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:03,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:03,787 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:03,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 23:46:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:06,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:46:06,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:08,110 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:46:08,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:08,900 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:46:08,900 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:46:08,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324360368] [2021-11-12 23:46:08,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324360368] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:46:08,901 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:46:08,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:46:08,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978002190] [2021-11-12 23:46:08,901 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:46:08,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:46:08,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:46:08,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:46:08,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:46:08,903 INFO L87 Difference]: Start difference. First operand 1161 states and 1567 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-12 23:46:09,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:09,065 INFO L93 Difference]: Finished difference Result 1161 states and 1567 transitions. [2021-11-12 23:46:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:46:09,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 115 [2021-11-12 23:46:09,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:09,075 INFO L225 Difference]: With dead ends: 1161 [2021-11-12 23:46:09,075 INFO L226 Difference]: Without dead ends: 1159 [2021-11-12 23:46:09,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:46:09,077 INFO L933 BasicCegarLoop]: 1541 mSDtfsCounter, 1445 mSDsluCounter, 3078 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 4619 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.97ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.57ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:09,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1447 Valid, 4619 Invalid, 2 Unknown, 0 Unchecked, 8.97ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 14.57ms Time] [2021-11-12 23:46:09,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2021-11-12 23:46:09,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1159. [2021-11-12 23:46:09,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 815 states have (on average 1.294478527607362) internal successors, (1055), 850 states have internal predecessors, (1055), 256 states have call successors, (256), 70 states have call predecessors, (256), 69 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:46:09,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1565 transitions. [2021-11-12 23:46:09,167 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1565 transitions. Word has length 115 [2021-11-12 23:46:09,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:09,167 INFO L470 AbstractCegarLoop]: Abstraction has 1159 states and 1565 transitions. [2021-11-12 23:46:09,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-12 23:46:09,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1565 transitions. [2021-11-12 23:46:09,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-12 23:46:09,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:09,170 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-12 23:46:09,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:09,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:46:09,379 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:46:09,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:09,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1994388712, now seen corresponding path program 1 times [2021-11-12 23:46:09,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:09,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127768181] [2021-11-12 23:46:09,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:09,382 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:09,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:09,383 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:09,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 23:46:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:12,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 1716 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-12 23:46:12,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:15,391 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-12 23:46:15,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:19,419 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 9 proven. 52 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2021-11-12 23:46:19,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:46:19,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127768181] [2021-11-12 23:46:19,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127768181] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:46:19,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:46:19,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 19 [2021-11-12 23:46:19,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874626228] [2021-11-12 23:46:19,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:46:19,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:46:19,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:46:19,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:46:19,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:46:19,422 INFO L87 Difference]: Start difference. First operand 1159 states and 1565 transitions. Second operand has 12 states, 10 states have (on average 5.8) internal successors, (58), 9 states have internal predecessors, (58), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-12 23:46:23,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:23,073 INFO L93 Difference]: Finished difference Result 2303 states and 3121 transitions. [2021-11-12 23:46:23,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 23:46:23,074 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 9 states have internal predecessors, (58), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) Word has length 157 [2021-11-12 23:46:23,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:23,091 INFO L225 Difference]: With dead ends: 2303 [2021-11-12 23:46:23,091 INFO L226 Difference]: Without dead ends: 1183 [2021-11-12 23:46:23,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-11-12 23:46:23,105 INFO L933 BasicCegarLoop]: 1575 mSDtfsCounter, 413 mSDsluCounter, 15138 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2484.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 16713 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.30ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2617.20ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:23,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [574 Valid, 16713 Invalid, 337 Unknown, 0 Unchecked, 29.30ms Time], IncrementalHoareTripleChecker [2 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 2617.20ms Time] [2021-11-12 23:46:23,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2021-11-12 23:46:23,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1159. [2021-11-12 23:46:23,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 815 states have (on average 1.2932515337423314) internal successors, (1054), 849 states have internal predecessors, (1054), 256 states have call successors, (256), 70 states have call predecessors, (256), 69 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:46:23,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1564 transitions. [2021-11-12 23:46:23,224 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1564 transitions. Word has length 157 [2021-11-12 23:46:23,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:23,225 INFO L470 AbstractCegarLoop]: Abstraction has 1159 states and 1564 transitions. [2021-11-12 23:46:23,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 9 states have internal predecessors, (58), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-12 23:46:23,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1564 transitions. [2021-11-12 23:46:23,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-12 23:46:23,227 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:23,227 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:23,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:23,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:46:23,436 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:46:23,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:23,436 INFO L85 PathProgramCache]: Analyzing trace with hash 190442030, now seen corresponding path program 1 times [2021-11-12 23:46:23,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:23,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584667893] [2021-11-12 23:46:23,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:23,439 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:23,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:23,440 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:23,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 23:46:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:26,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 1515 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:46:26,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:27,930 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:46:27,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:28,710 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:46:28,710 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:46:28,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584667893] [2021-11-12 23:46:28,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584667893] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:46:28,710 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:46:28,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:46:28,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081849532] [2021-11-12 23:46:28,711 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:46:28,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:46:28,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:46:28,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:46:28,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:46:28,712 INFO L87 Difference]: Start difference. First operand 1159 states and 1564 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-12 23:46:28,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:28,859 INFO L93 Difference]: Finished difference Result 1159 states and 1564 transitions. [2021-11-12 23:46:28,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:46:28,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 121 [2021-11-12 23:46:28,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:28,868 INFO L225 Difference]: With dead ends: 1159 [2021-11-12 23:46:28,869 INFO L226 Difference]: Without dead ends: 1157 [2021-11-12 23:46:28,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:46:28,870 INFO L933 BasicCegarLoop]: 1538 mSDtfsCounter, 1439 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 3074 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.99ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:28,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1441 Valid, 3074 Invalid, 2 Unknown, 0 Unchecked, 5.16ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 12.99ms Time] [2021-11-12 23:46:28,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2021-11-12 23:46:28,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1157. [2021-11-12 23:46:28,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 814 states have (on average 1.2923832923832923) internal successors, (1052), 847 states have internal predecessors, (1052), 256 states have call successors, (256), 70 states have call predecessors, (256), 69 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:46:28,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1562 transitions. [2021-11-12 23:46:28,982 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1562 transitions. Word has length 121 [2021-11-12 23:46:28,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:28,983 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1562 transitions. [2021-11-12 23:46:28,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-12 23:46:28,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1562 transitions. [2021-11-12 23:46:28,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-12 23:46:28,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:28,986 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-12 23:46:29,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:29,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:46:29,205 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:46:29,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:29,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1131794795, now seen corresponding path program 1 times [2021-11-12 23:46:29,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:29,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566312415] [2021-11-12 23:46:29,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:29,208 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:29,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:29,209 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:29,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 23:46:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:32,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 1727 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:46:32,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:33,402 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 228 proven. 3 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-11-12 23:46:33,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:34,897 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 18 proven. 39 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-11-12 23:46:34,897 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:46:34,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566312415] [2021-11-12 23:46:34,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566312415] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:46:34,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1771941839] [2021-11-12 23:46:34,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:34,898 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:46:34,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:46:34,899 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:46:34,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-12 23:46:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:36,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 1727 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:46:36,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:38,817 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-12 23:46:38,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:39,641 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-12 23:46:39,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1771941839] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:46:39,642 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:46:39,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [8, 8] total 10 [2021-11-12 23:46:39,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410931747] [2021-11-12 23:46:39,642 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:46:39,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:46:39,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:46:39,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:46:39,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:46:39,644 INFO L87 Difference]: Start difference. First operand 1157 states and 1562 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-12 23:46:39,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:39,883 INFO L93 Difference]: Finished difference Result 2253 states and 3066 transitions. [2021-11-12 23:46:39,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:46:39,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 161 [2021-11-12 23:46:39,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:39,894 INFO L225 Difference]: With dead ends: 2253 [2021-11-12 23:46:39,894 INFO L226 Difference]: Without dead ends: 1152 [2021-11-12 23:46:39,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:46:39,907 INFO L933 BasicCegarLoop]: 1507 mSDtfsCounter, 1451 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 102.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.51ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:39,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1451 Valid, 1507 Invalid, 25 Unknown, 0 Unchecked, 3.51ms Time], IncrementalHoareTripleChecker [12 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 112.00ms Time] [2021-11-12 23:46:39,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2021-11-12 23:46:40,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2021-11-12 23:46:40,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 809 states have (on average 1.2756489493201484) internal successors, (1032), 842 states have internal predecessors, (1032), 256 states have call successors, (256), 70 states have call predecessors, (256), 69 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:46:40,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1542 transitions. [2021-11-12 23:46:40,023 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1542 transitions. Word has length 161 [2021-11-12 23:46:40,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:40,024 INFO L470 AbstractCegarLoop]: Abstraction has 1152 states and 1542 transitions. [2021-11-12 23:46:40,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-12 23:46:40,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1542 transitions. [2021-11-12 23:46:40,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-12 23:46:40,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:40,027 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-12 23:46:40,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:40,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:40,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:46:40,440 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:46:40,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:40,440 INFO L85 PathProgramCache]: Analyzing trace with hash -451736425, now seen corresponding path program 1 times [2021-11-12 23:46:40,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:40,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831669292] [2021-11-12 23:46:40,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:40,442 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:40,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:40,444 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:40,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-12 23:46:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:43,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 1727 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:46:43,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:44,704 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 228 proven. 3 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-11-12 23:46:44,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:46,327 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 18 proven. 39 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-11-12 23:46:46,327 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:46:46,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831669292] [2021-11-12 23:46:46,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831669292] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:46:46,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [62908139] [2021-11-12 23:46:46,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:46,328 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:46:46,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:46:46,331 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:46:46,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-12 23:46:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:47,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 1727 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:46:47,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:48,156 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-12 23:46:48,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:48,880 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-12 23:46:48,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [62908139] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:46:48,880 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:46:48,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8] total 11 [2021-11-12 23:46:48,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293268480] [2021-11-12 23:46:48,881 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:46:48,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:46:48,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:46:48,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:46:48,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:46:48,882 INFO L87 Difference]: Start difference. First operand 1152 states and 1542 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-12 23:46:49,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:49,977 INFO L93 Difference]: Finished difference Result 1900 states and 2502 transitions. [2021-11-12 23:46:49,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:46:49,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 161 [2021-11-12 23:46:49,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:49,985 INFO L225 Difference]: With dead ends: 1900 [2021-11-12 23:46:49,985 INFO L226 Difference]: Without dead ends: 1148 [2021-11-12 23:46:49,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 631 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:46:49,990 INFO L933 BasicCegarLoop]: 1514 mSDtfsCounter, 2501 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 763.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2501 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.58ms SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 982.40ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:49,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2501 Valid, 1514 Invalid, 501 Unknown, 0 Unchecked, 7.58ms Time], IncrementalHoareTripleChecker [500 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 982.40ms Time] [2021-11-12 23:46:49,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2021-11-12 23:46:50,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1148. [2021-11-12 23:46:50,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 806 states have (on average 1.2741935483870968) internal successors, (1027), 838 states have internal predecessors, (1027), 256 states have call successors, (256), 70 states have call predecessors, (256), 69 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:46:50,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1537 transitions. [2021-11-12 23:46:50,111 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1537 transitions. Word has length 161 [2021-11-12 23:46:50,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:50,112 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 1537 transitions. [2021-11-12 23:46:50,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-12 23:46:50,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1537 transitions. [2021-11-12 23:46:50,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-12 23:46:50,114 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:50,115 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:50,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:50,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2021-11-12 23:46:50,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:46:50,531 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:46:50,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:50,532 INFO L85 PathProgramCache]: Analyzing trace with hash -764613730, now seen corresponding path program 1 times [2021-11-12 23:46:50,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:50,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666335754] [2021-11-12 23:46:50,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:50,534 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:50,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:50,535 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:50,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-12 23:46:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:53,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 1524 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:46:53,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:54,899 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:46:54,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:55,798 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:46:55,798 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:46:55,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666335754] [2021-11-12 23:46:55,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666335754] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:46:55,799 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:46:55,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:46:55,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353487671] [2021-11-12 23:46:55,802 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:46:55,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:46:55,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:46:55,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:46:55,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:46:55,803 INFO L87 Difference]: Start difference. First operand 1148 states and 1537 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-12 23:46:55,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:55,959 INFO L93 Difference]: Finished difference Result 1148 states and 1537 transitions. [2021-11-12 23:46:55,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:46:55,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 127 [2021-11-12 23:46:55,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:55,967 INFO L225 Difference]: With dead ends: 1148 [2021-11-12 23:46:55,968 INFO L226 Difference]: Without dead ends: 1146 [2021-11-12 23:46:55,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:46:55,969 INFO L933 BasicCegarLoop]: 1511 mSDtfsCounter, 1406 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 3020 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.34ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:55,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1408 Valid, 3020 Invalid, 2 Unknown, 0 Unchecked, 5.13ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 12.34ms Time] [2021-11-12 23:46:55,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2021-11-12 23:46:56,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 1146. [2021-11-12 23:46:56,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 805 states have (on average 1.2732919254658386) internal successors, (1025), 836 states have internal predecessors, (1025), 256 states have call successors, (256), 70 states have call predecessors, (256), 69 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:46:56,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1535 transitions. [2021-11-12 23:46:56,093 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1535 transitions. Word has length 127 [2021-11-12 23:46:56,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:56,093 INFO L470 AbstractCegarLoop]: Abstraction has 1146 states and 1535 transitions. [2021-11-12 23:46:56,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-12 23:46:56,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1535 transitions. [2021-11-12 23:46:56,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-12 23:46:56,096 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:56,096 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-12 23:46:56,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:56,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:46:56,311 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:46:56,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:56,312 INFO L85 PathProgramCache]: Analyzing trace with hash -980052538, now seen corresponding path program 1 times [2021-11-12 23:46:56,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:56,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976282408] [2021-11-12 23:46:56,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:56,314 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:56,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:56,315 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:56,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-12 23:46:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:59,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 1736 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:46:59,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:00,458 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 228 proven. 3 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2021-11-12 23:47:00,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:01,990 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 18 proven. 39 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2021-11-12 23:47:01,991 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:01,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976282408] [2021-11-12 23:47:01,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976282408] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:47:01,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1463826258] [2021-11-12 23:47:01,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:01,991 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:47:01,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:47:01,992 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:47:01,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-12 23:47:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:03,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 1736 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:47:03,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:03,809 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-12 23:47:03,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:04,493 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-12 23:47:04,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1463826258] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:47:04,493 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:47:04,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8] total 11 [2021-11-12 23:47:04,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896027394] [2021-11-12 23:47:04,493 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:04,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:47:04,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:04,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:47:04,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:47:04,495 INFO L87 Difference]: Start difference. First operand 1146 states and 1535 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-12 23:47:05,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:05,599 INFO L93 Difference]: Finished difference Result 1896 states and 2492 transitions. [2021-11-12 23:47:05,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:47:05,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 167 [2021-11-12 23:47:05,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:05,608 INFO L225 Difference]: With dead ends: 1896 [2021-11-12 23:47:05,608 INFO L226 Difference]: Without dead ends: 1153 [2021-11-12 23:47:05,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:47:05,612 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 2476 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 761.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2476 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.50ms SdHoareTripleChecker+Time, 499 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 949.94ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:05,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2476 Valid, 1544 Invalid, 501 Unknown, 0 Unchecked, 7.50ms Time], IncrementalHoareTripleChecker [499 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 949.94ms Time] [2021-11-12 23:47:05,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2021-11-12 23:47:05,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1152. [2021-11-12 23:47:05,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 809 states have (on average 1.26946847960445) internal successors, (1027), 839 states have internal predecessors, (1027), 256 states have call successors, (256), 73 states have call predecessors, (256), 72 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:47:05,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1537 transitions. [2021-11-12 23:47:05,739 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1537 transitions. Word has length 167 [2021-11-12 23:47:05,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:05,740 INFO L470 AbstractCegarLoop]: Abstraction has 1152 states and 1537 transitions. [2021-11-12 23:47:05,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-12 23:47:05,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1537 transitions. [2021-11-12 23:47:05,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-12 23:47:05,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:05,743 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-12 23:47:05,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:05,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2021-11-12 23:47:06,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:47:06,160 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:47:06,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:06,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1039156857, now seen corresponding path program 1 times [2021-11-12 23:47:06,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:06,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305467571] [2021-11-12 23:47:06,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:06,162 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:06,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:06,163 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:06,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-12 23:47:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:08,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:47:08,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:10,328 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 228 proven. 3 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-11-12 23:47:10,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:11,854 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 18 proven. 39 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-11-12 23:47:11,854 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:11,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305467571] [2021-11-12 23:47:11,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305467571] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:47:11,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [26717146] [2021-11-12 23:47:11,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:11,855 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:47:11,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:47:11,856 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:47:11,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2021-11-12 23:47:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:13,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:47:13,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:16,058 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-12 23:47:16,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:17,281 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-12 23:47:17,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [26717146] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:47:17,282 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:47:17,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [8, 8] total 14 [2021-11-12 23:47:17,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371800576] [2021-11-12 23:47:17,283 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:17,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:47:17,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:17,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:47:17,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:47:17,285 INFO L87 Difference]: Start difference. First operand 1152 states and 1537 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 23:47:19,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:47:21,478 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:47:29,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:29,475 INFO L93 Difference]: Finished difference Result 2234 states and 2994 transitions. [2021-11-12 23:47:29,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:47:29,476 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 169 [2021-11-12 23:47:29,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:29,486 INFO L225 Difference]: With dead ends: 2234 [2021-11-12 23:47:29,486 INFO L226 Difference]: Without dead ends: 1152 [2021-11-12 23:47:29,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 660 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:47:29,492 INFO L933 BasicCegarLoop]: 1504 mSDtfsCounter, 1432 mSDsluCounter, 5004 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11402.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 6508 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.58ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11768.89ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:29,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1435 Valid, 6508 Invalid, 1015 Unknown, 0 Unchecked, 19.58ms Time], IncrementalHoareTripleChecker [1 Valid, 1012 Invalid, 2 Unknown, 0 Unchecked, 11768.89ms Time] [2021-11-12 23:47:29,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2021-11-12 23:47:29,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2021-11-12 23:47:29,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 809 states have (on average 1.2682323856613102) internal successors, (1026), 839 states have internal predecessors, (1026), 256 states have call successors, (256), 73 states have call predecessors, (256), 72 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:47:29,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1536 transitions. [2021-11-12 23:47:29,621 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1536 transitions. Word has length 169 [2021-11-12 23:47:29,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:29,621 INFO L470 AbstractCegarLoop]: Abstraction has 1152 states and 1536 transitions. [2021-11-12 23:47:29,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 23:47:29,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1536 transitions. [2021-11-12 23:47:29,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-12 23:47:29,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:29,625 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-12 23:47:29,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:29,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:30,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:30,037 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:47:30,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:30,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1039097275, now seen corresponding path program 1 times [2021-11-12 23:47:30,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:30,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969382372] [2021-11-12 23:47:30,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:30,041 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:30,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:30,042 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:30,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-12 23:47:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:32,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:47:32,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:34,240 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 228 proven. 3 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-11-12 23:47:34,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:35,878 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 18 proven. 39 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-11-12 23:47:35,878 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:35,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969382372] [2021-11-12 23:47:35,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969382372] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:47:35,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [107663310] [2021-11-12 23:47:35,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:35,879 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:47:35,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:47:35,879 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:47:35,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-11-12 23:47:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:39,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 23:47:39,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:41,026 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-11-12 23:47:41,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:42,139 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 7 proven. 21 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-11-12 23:47:42,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [107663310] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:47:42,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:47:42,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 6] total 13 [2021-11-12 23:47:42,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310690516] [2021-11-12 23:47:42,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:42,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:47:42,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:42,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:47:42,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:47:42,141 INFO L87 Difference]: Start difference. First operand 1152 states and 1536 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-12 23:47:42,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:42,472 INFO L93 Difference]: Finished difference Result 2272 states and 3047 transitions. [2021-11-12 23:47:42,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:47:42,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 169 [2021-11-12 23:47:42,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:42,482 INFO L225 Difference]: With dead ends: 2272 [2021-11-12 23:47:42,482 INFO L226 Difference]: Without dead ends: 1174 [2021-11-12 23:47:42,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 673 GetRequests, 661 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:47:42,487 INFO L933 BasicCegarLoop]: 1563 mSDtfsCounter, 389 mSDsluCounter, 5700 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 92.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 7263 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.25ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:42,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [546 Valid, 7263 Invalid, 12 Unknown, 0 Unchecked, 9.20ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 97.25ms Time] [2021-11-12 23:47:42,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2021-11-12 23:47:42,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1152. [2021-11-12 23:47:42,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 809 states have (on average 1.2669962917181705) internal successors, (1025), 838 states have internal predecessors, (1025), 256 states have call successors, (256), 73 states have call predecessors, (256), 72 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:47:42,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1535 transitions. [2021-11-12 23:47:42,628 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1535 transitions. Word has length 169 [2021-11-12 23:47:42,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:42,629 INFO L470 AbstractCegarLoop]: Abstraction has 1152 states and 1535 transitions. [2021-11-12 23:47:42,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-12 23:47:42,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1535 transitions. [2021-11-12 23:47:42,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-12 23:47:42,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:42,631 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-12 23:47:42,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:42,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:43,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:43,046 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:47:43,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:43,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1043772952, now seen corresponding path program 1 times [2021-11-12 23:47:43,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:43,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901790650] [2021-11-12 23:47:43,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:43,048 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:43,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:43,049 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:43,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-12 23:47:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:46,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 1753 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:47:46,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:46,397 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-12 23:47:46,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-12 23:47:46,837 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:46,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [901790650] [2021-11-12 23:47:46,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [901790650] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:47:46,838 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:47:46,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 23:47:46,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052617776] [2021-11-12 23:47:46,838 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:46,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:47:46,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:46,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:47:46,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:47:46,840 INFO L87 Difference]: Start difference. First operand 1152 states and 1535 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-11-12 23:47:47,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:47,071 INFO L93 Difference]: Finished difference Result 1152 states and 1535 transitions. [2021-11-12 23:47:47,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:47:47,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 173 [2021-11-12 23:47:47,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:47,077 INFO L225 Difference]: With dead ends: 1152 [2021-11-12 23:47:47,077 INFO L226 Difference]: Without dead ends: 1150 [2021-11-12 23:47:47,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:47:47,078 INFO L933 BasicCegarLoop]: 1502 mSDtfsCounter, 7 mSDsluCounter, 5996 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7498 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.24ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.58ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:47,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 7498 Invalid, 4 Unknown, 0 Unchecked, 7.24ms Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 24.58ms Time] [2021-11-12 23:47:47,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2021-11-12 23:47:47,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1150. [2021-11-12 23:47:47,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 808 states have (on average 1.266089108910891) internal successors, (1023), 836 states have internal predecessors, (1023), 256 states have call successors, (256), 73 states have call predecessors, (256), 72 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:47:47,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1533 transitions. [2021-11-12 23:47:47,209 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1533 transitions. Word has length 173 [2021-11-12 23:47:47,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:47,209 INFO L470 AbstractCegarLoop]: Abstraction has 1150 states and 1533 transitions. [2021-11-12 23:47:47,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-11-12 23:47:47,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1533 transitions. [2021-11-12 23:47:47,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-12 23:47:47,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:47,210 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:47,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:47,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:47,423 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:47:47,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:47,424 INFO L85 PathProgramCache]: Analyzing trace with hash 850371757, now seen corresponding path program 1 times [2021-11-12 23:47:47,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:47,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037025067] [2021-11-12 23:47:47,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:47,426 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:47,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:47,427 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:47,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-12 23:47:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:50,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1533 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:47:50,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:52,069 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:47:52,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:52,880 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:47:52,880 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:52,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037025067] [2021-11-12 23:47:52,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037025067] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:47:52,881 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:47:52,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:47:52,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283284071] [2021-11-12 23:47:52,881 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:52,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:47:52,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:52,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:47:52,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:47:52,883 INFO L87 Difference]: Start difference. First operand 1150 states and 1533 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-12 23:47:53,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:53,061 INFO L93 Difference]: Finished difference Result 1150 states and 1533 transitions. [2021-11-12 23:47:53,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:47:53,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 133 [2021-11-12 23:47:53,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:53,067 INFO L225 Difference]: With dead ends: 1150 [2021-11-12 23:47:53,068 INFO L226 Difference]: Without dead ends: 1148 [2021-11-12 23:47:53,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:47:53,069 INFO L933 BasicCegarLoop]: 1500 mSDtfsCounter, 1386 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 4496 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.95ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.79ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:53,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1388 Valid, 4496 Invalid, 2 Unknown, 0 Unchecked, 6.95ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 12.79ms Time] [2021-11-12 23:47:53,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2021-11-12 23:47:53,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1148. [2021-11-12 23:47:53,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 807 states have (on average 1.265179677819083) internal successors, (1021), 834 states have internal predecessors, (1021), 256 states have call successors, (256), 73 states have call predecessors, (256), 72 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:47:53,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1531 transitions. [2021-11-12 23:47:53,189 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1531 transitions. Word has length 133 [2021-11-12 23:47:53,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:53,189 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 1531 transitions. [2021-11-12 23:47:53,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-12 23:47:53,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1531 transitions. [2021-11-12 23:47:53,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-12 23:47:53,191 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:53,191 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-12 23:47:53,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:53,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:53,392 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:47:53,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:53,392 INFO L85 PathProgramCache]: Analyzing trace with hash 2068044050, now seen corresponding path program 1 times [2021-11-12 23:47:53,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:53,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659500857] [2021-11-12 23:47:53,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:53,394 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:53,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:53,395 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:53,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-12 23:47:56,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:56,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 1764 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:47:56,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:59,211 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-12 23:47:59,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:00,077 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-12 23:48:00,078 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:00,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659500857] [2021-11-12 23:48:00,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659500857] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:48:00,078 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:48:00,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-12 23:48:00,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556580659] [2021-11-12 23:48:00,078 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:00,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:48:00,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:00,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:48:00,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:48:00,080 INFO L87 Difference]: Start difference. First operand 1148 states and 1531 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-12 23:48:00,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:00,870 INFO L93 Difference]: Finished difference Result 2222 states and 2979 transitions. [2021-11-12 23:48:00,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:48:00,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 180 [2021-11-12 23:48:00,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:00,880 INFO L225 Difference]: With dead ends: 2222 [2021-11-12 23:48:00,880 INFO L226 Difference]: Without dead ends: 1144 [2021-11-12 23:48:00,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:48:00,885 INFO L933 BasicCegarLoop]: 1496 mSDtfsCounter, 2374 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 530.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2374 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.86ms SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 674.67ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:00,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2374 Valid, 1496 Invalid, 485 Unknown, 0 Unchecked, 4.86ms Time], IncrementalHoareTripleChecker [484 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 674.67ms Time] [2021-11-12 23:48:00,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2021-11-12 23:48:01,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1144. [2021-11-12 23:48:01,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 804 states have (on average 1.263681592039801) internal successors, (1016), 830 states have internal predecessors, (1016), 256 states have call successors, (256), 73 states have call predecessors, (256), 72 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:48:01,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1526 transitions. [2021-11-12 23:48:01,013 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1526 transitions. Word has length 180 [2021-11-12 23:48:01,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:01,014 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1526 transitions. [2021-11-12 23:48:01,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-12 23:48:01,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1526 transitions. [2021-11-12 23:48:01,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-12 23:48:01,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:01,016 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:48:01,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-12 23:48:01,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:01,243 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:48:01,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:01,244 INFO L85 PathProgramCache]: Analyzing trace with hash 428495296, now seen corresponding path program 1 times [2021-11-12 23:48:01,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:01,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843707491] [2021-11-12 23:48:01,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:01,247 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:01,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:01,249 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:01,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-12 23:48:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:03,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:48:03,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:48:05,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:06,537 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:48:06,538 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:06,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843707491] [2021-11-12 23:48:06,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843707491] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:48:06,538 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:48:06,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:48:06,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784140109] [2021-11-12 23:48:06,538 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:06,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:48:06,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:06,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:48:06,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:48:06,540 INFO L87 Difference]: Start difference. First operand 1144 states and 1526 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-12 23:48:06,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:06,732 INFO L93 Difference]: Finished difference Result 1144 states and 1526 transitions. [2021-11-12 23:48:06,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:48:06,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 139 [2021-11-12 23:48:06,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:06,740 INFO L225 Difference]: With dead ends: 1144 [2021-11-12 23:48:06,740 INFO L226 Difference]: Without dead ends: 1142 [2021-11-12 23:48:06,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:48:06,742 INFO L933 BasicCegarLoop]: 1493 mSDtfsCounter, 1373 mSDsluCounter, 2982 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 4475 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.11ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.04ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:06,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1375 Valid, 4475 Invalid, 2 Unknown, 0 Unchecked, 6.11ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 13.04ms Time] [2021-11-12 23:48:06,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2021-11-12 23:48:06,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1142. [2021-11-12 23:48:06,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 803 states have (on average 1.2627646326276463) internal successors, (1014), 828 states have internal predecessors, (1014), 256 states have call successors, (256), 73 states have call predecessors, (256), 72 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:48:06,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1524 transitions. [2021-11-12 23:48:06,868 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1524 transitions. Word has length 139 [2021-11-12 23:48:06,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:06,868 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 1524 transitions. [2021-11-12 23:48:06,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-12 23:48:06,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1524 transitions. [2021-11-12 23:48:06,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-12 23:48:06,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:06,870 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:48:06,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-12 23:48:07,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:07,072 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:48:07,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:07,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1644706137, now seen corresponding path program 1 times [2021-11-12 23:48:07,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:07,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154455874] [2021-11-12 23:48:07,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:07,074 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:07,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:07,075 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:07,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-12 23:48:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:09,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 1551 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:48:09,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:11,672 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:48:11,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:12,514 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:48:12,514 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:12,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154455874] [2021-11-12 23:48:12,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [154455874] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:48:12,514 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:48:12,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:48:12,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952629115] [2021-11-12 23:48:12,515 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:12,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:48:12,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:12,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:48:12,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:48:12,517 INFO L87 Difference]: Start difference. First operand 1142 states and 1524 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-12 23:48:12,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:12,702 INFO L93 Difference]: Finished difference Result 1142 states and 1524 transitions. [2021-11-12 23:48:12,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:48:12,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 145 [2021-11-12 23:48:12,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:12,709 INFO L225 Difference]: With dead ends: 1142 [2021-11-12 23:48:12,710 INFO L226 Difference]: Without dead ends: 1140 [2021-11-12 23:48:12,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:48:12,711 INFO L933 BasicCegarLoop]: 1491 mSDtfsCounter, 1365 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 4469 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.95ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.15ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:12,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1367 Valid, 4469 Invalid, 2 Unknown, 0 Unchecked, 5.95ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 14.15ms Time] [2021-11-12 23:48:12,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2021-11-12 23:48:12,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1140. [2021-11-12 23:48:12,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 802 states have (on average 1.2618453865336658) internal successors, (1012), 826 states have internal predecessors, (1012), 256 states have call successors, (256), 73 states have call predecessors, (256), 72 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:48:12,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1522 transitions. [2021-11-12 23:48:12,901 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1522 transitions. Word has length 145 [2021-11-12 23:48:12,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:12,902 INFO L470 AbstractCegarLoop]: Abstraction has 1140 states and 1522 transitions. [2021-11-12 23:48:12,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-12 23:48:12,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1522 transitions. [2021-11-12 23:48:12,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-12 23:48:12,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:12,904 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:48:12,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-12 23:48:13,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:13,127 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:48:13,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:13,128 INFO L85 PathProgramCache]: Analyzing trace with hash 939230556, now seen corresponding path program 1 times [2021-11-12 23:48:13,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:13,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950663007] [2021-11-12 23:48:13,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:13,130 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:13,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:13,131 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:13,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-12 23:48:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:15,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 1560 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:48:15,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:17,833 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:48:17,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:19,488 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:48:19,488 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:19,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950663007] [2021-11-12 23:48:19,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [950663007] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:48:19,488 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:48:19,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-12 23:48:19,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777627257] [2021-11-12 23:48:19,489 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:19,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:48:19,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:19,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:48:19,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:48:19,490 INFO L87 Difference]: Start difference. First operand 1140 states and 1522 transitions. Second operand has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-12 23:48:20,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:20,414 INFO L93 Difference]: Finished difference Result 1140 states and 1522 transitions. [2021-11-12 23:48:20,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:48:20,414 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 151 [2021-11-12 23:48:20,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:20,420 INFO L225 Difference]: With dead ends: 1140 [2021-11-12 23:48:20,421 INFO L226 Difference]: Without dead ends: 1138 [2021-11-12 23:48:20,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:48:20,423 INFO L933 BasicCegarLoop]: 1489 mSDtfsCounter, 2326 mSDsluCounter, 2974 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 568.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2328 SdHoareTripleChecker+Valid, 4463 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.43ms SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 730.64ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:20,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2328 Valid, 4463 Invalid, 479 Unknown, 0 Unchecked, 10.43ms Time], IncrementalHoareTripleChecker [477 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 730.64ms Time] [2021-11-12 23:48:20,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2021-11-12 23:48:20,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1138. [2021-11-12 23:48:20,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 801 states have (on average 1.260923845193508) internal successors, (1010), 824 states have internal predecessors, (1010), 256 states have call successors, (256), 73 states have call predecessors, (256), 72 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:48:20,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1520 transitions. [2021-11-12 23:48:20,593 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1520 transitions. Word has length 151 [2021-11-12 23:48:20,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:20,594 INFO L470 AbstractCegarLoop]: Abstraction has 1138 states and 1520 transitions. [2021-11-12 23:48:20,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-12 23:48:20,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1520 transitions. [2021-11-12 23:48:20,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-12 23:48:20,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:20,595 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:48:20,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2021-11-12 23:48:20,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:20,796 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:48:20,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:20,796 INFO L85 PathProgramCache]: Analyzing trace with hash 278439325, now seen corresponding path program 1 times [2021-11-12 23:48:20,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:20,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520395419] [2021-11-12 23:48:20,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:20,799 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:20,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:20,800 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:20,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-12 23:48:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:23,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:48:23,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:25,688 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:48:25,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:26,618 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:48:26,618 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:26,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520395419] [2021-11-12 23:48:26,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520395419] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:48:26,618 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:48:26,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:48:26,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57272835] [2021-11-12 23:48:26,619 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:26,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:48:26,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:26,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:48:26,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:48:26,620 INFO L87 Difference]: Start difference. First operand 1138 states and 1520 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-12 23:48:26,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:26,790 INFO L93 Difference]: Finished difference Result 1138 states and 1520 transitions. [2021-11-12 23:48:26,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:48:26,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 157 [2021-11-12 23:48:26,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:26,796 INFO L225 Difference]: With dead ends: 1138 [2021-11-12 23:48:26,796 INFO L226 Difference]: Without dead ends: 1136 [2021-11-12 23:48:26,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:48:26,798 INFO L933 BasicCegarLoop]: 1487 mSDtfsCounter, 1349 mSDsluCounter, 2970 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 4457 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.50ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:26,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1351 Valid, 4457 Invalid, 2 Unknown, 0 Unchecked, 5.50ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 12.55ms Time] [2021-11-12 23:48:26,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2021-11-12 23:48:26,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1136. [2021-11-12 23:48:26,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 800 states have (on average 1.26) internal successors, (1008), 822 states have internal predecessors, (1008), 256 states have call successors, (256), 73 states have call predecessors, (256), 72 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:48:26,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1518 transitions. [2021-11-12 23:48:26,941 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1518 transitions. Word has length 157 [2021-11-12 23:48:26,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:26,942 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 1518 transitions. [2021-11-12 23:48:26,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-12 23:48:26,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1518 transitions. [2021-11-12 23:48:26,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-12 23:48:26,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:26,944 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:48:27,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-12 23:48:27,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:27,160 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:48:27,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:27,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1340808372, now seen corresponding path program 1 times [2021-11-12 23:48:27,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:27,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1880441266] [2021-11-12 23:48:27,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:27,163 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:27,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:27,165 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:27,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-12 23:48:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:30,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:48:30,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:32,364 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:48:32,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:33,256 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:48:33,256 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:33,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1880441266] [2021-11-12 23:48:33,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1880441266] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:48:33,256 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:48:33,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:48:33,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104101943] [2021-11-12 23:48:33,257 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:33,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:48:33,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:33,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:48:33,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:48:33,259 INFO L87 Difference]: Start difference. First operand 1136 states and 1518 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 23:48:33,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:33,426 INFO L93 Difference]: Finished difference Result 1136 states and 1518 transitions. [2021-11-12 23:48:33,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:48:33,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 163 [2021-11-12 23:48:33,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:33,430 INFO L225 Difference]: With dead ends: 1136 [2021-11-12 23:48:33,431 INFO L226 Difference]: Without dead ends: 1134 [2021-11-12 23:48:33,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:48:33,432 INFO L933 BasicCegarLoop]: 1485 mSDtfsCounter, 1344 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 2968 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.91ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:33,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1346 Valid, 2968 Invalid, 2 Unknown, 0 Unchecked, 3.91ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 12.55ms Time] [2021-11-12 23:48:33,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2021-11-12 23:48:33,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1134. [2021-11-12 23:48:33,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 799 states have (on average 1.2590738423028787) internal successors, (1006), 820 states have internal predecessors, (1006), 256 states have call successors, (256), 73 states have call predecessors, (256), 72 states have return successors, (254), 253 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-12 23:48:33,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1516 transitions. [2021-11-12 23:48:33,569 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1516 transitions. Word has length 163 [2021-11-12 23:48:33,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:33,570 INFO L470 AbstractCegarLoop]: Abstraction has 1134 states and 1516 transitions. [2021-11-12 23:48:33,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 23:48:33,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1516 transitions. [2021-11-12 23:48:33,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-12 23:48:33,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:33,573 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:48:33,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-12 23:48:33,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:33,795 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:48:33,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:33,796 INFO L85 PathProgramCache]: Analyzing trace with hash -238826231, now seen corresponding path program 1 times [2021-11-12 23:48:33,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:33,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361486634] [2021-11-12 23:48:33,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:33,799 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:33,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:33,801 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:33,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-12 23:48:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:37,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1849 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-12 23:48:37,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:38,306 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2021-11-12 23:48:38,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:40,333 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2021-11-12 23:48:40,333 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:40,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361486634] [2021-11-12 23:48:40,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361486634] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:48:40,333 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:48:40,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-11-12 23:48:40,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529427598] [2021-11-12 23:48:40,334 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:40,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-12 23:48:40,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:40,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-12 23:48:40,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:48:40,335 INFO L87 Difference]: Start difference. First operand 1134 states and 1516 transitions. Second operand has 16 states, 16 states have (on average 5.25) internal successors, (84), 14 states have internal predecessors, (84), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-12 23:48:43,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:48:46,360 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:48:47,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:47,688 INFO L93 Difference]: Finished difference Result 2518 states and 3437 transitions. [2021-11-12 23:48:47,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:48:47,689 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.25) internal successors, (84), 14 states have internal predecessors, (84), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) Word has length 209 [2021-11-12 23:48:47,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:47,698 INFO L225 Difference]: With dead ends: 2518 [2021-11-12 23:48:47,698 INFO L226 Difference]: Without dead ends: 1460 [2021-11-12 23:48:47,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:48:47,704 INFO L933 BasicCegarLoop]: 1796 mSDtfsCounter, 758 mSDsluCounter, 19253 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 415 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6203.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 21049 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.01ms SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6403.28ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:47,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [827 Valid, 21049 Invalid, 574 Unknown, 0 Unchecked, 24.01ms Time], IncrementalHoareTripleChecker [415 Valid, 157 Invalid, 2 Unknown, 0 Unchecked, 6403.28ms Time] [2021-11-12 23:48:47,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2021-11-12 23:48:47,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1142. [2021-11-12 23:48:47,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 806 states have (on average 1.2568238213399503) internal successors, (1013), 827 states have internal predecessors, (1013), 256 states have call successors, (256), 73 states have call predecessors, (256), 73 states have return successors, (256), 254 states have call predecessors, (256), 254 states have call successors, (256) [2021-11-12 23:48:47,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1525 transitions. [2021-11-12 23:48:47,846 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1525 transitions. Word has length 209 [2021-11-12 23:48:47,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:47,847 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 1525 transitions. [2021-11-12 23:48:47,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.25) internal successors, (84), 14 states have internal predecessors, (84), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-12 23:48:47,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1525 transitions. [2021-11-12 23:48:47,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-12 23:48:47,848 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:47,848 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:48:47,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-12 23:48:48,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:48,049 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:48:48,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:48,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1621684802, now seen corresponding path program 1 times [2021-11-12 23:48:48,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:48,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052219325] [2021-11-12 23:48:48,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:48,052 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:48,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:48,054 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:48,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-12 23:48:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:50,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 1587 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:48:50,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:53,710 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:48:53,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:54,919 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:48:54,920 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:54,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052219325] [2021-11-12 23:48:54,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052219325] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:48:54,920 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:48:54,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:48:54,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057939378] [2021-11-12 23:48:54,920 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:54,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:48:54,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:54,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:48:54,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:48:54,922 INFO L87 Difference]: Start difference. First operand 1142 states and 1525 transitions. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-12 23:48:55,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:55,129 INFO L93 Difference]: Finished difference Result 1142 states and 1525 transitions. [2021-11-12 23:48:55,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:48:55,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 169 [2021-11-12 23:48:55,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:55,135 INFO L225 Difference]: With dead ends: 1142 [2021-11-12 23:48:55,135 INFO L226 Difference]: Without dead ends: 1140 [2021-11-12 23:48:55,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:48:55,137 INFO L933 BasicCegarLoop]: 1483 mSDtfsCounter, 1333 mSDsluCounter, 2962 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 4445 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.76ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.67ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:55,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1335 Valid, 4445 Invalid, 2 Unknown, 0 Unchecked, 5.76ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 15.67ms Time] [2021-11-12 23:48:55,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2021-11-12 23:48:55,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1140. [2021-11-12 23:48:55,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 805 states have (on average 1.2559006211180124) internal successors, (1011), 825 states have internal predecessors, (1011), 256 states have call successors, (256), 73 states have call predecessors, (256), 73 states have return successors, (256), 254 states have call predecessors, (256), 254 states have call successors, (256) [2021-11-12 23:48:55,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1523 transitions. [2021-11-12 23:48:55,337 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1523 transitions. Word has length 169 [2021-11-12 23:48:55,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:55,338 INFO L470 AbstractCegarLoop]: Abstraction has 1140 states and 1523 transitions. [2021-11-12 23:48:55,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-12 23:48:55,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1523 transitions. [2021-11-12 23:48:55,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-12 23:48:55,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:55,344 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:48:55,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-12 23:48:55,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:55,568 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:48:55,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:55,568 INFO L85 PathProgramCache]: Analyzing trace with hash 438419353, now seen corresponding path program 1 times [2021-11-12 23:48:55,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:55,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473585268] [2021-11-12 23:48:55,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:55,570 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:55,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:55,571 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:55,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-12 23:48:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:58,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 1596 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:48:58,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:01,388 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:49:01,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:02,495 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:49:02,496 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:49:02,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473585268] [2021-11-12 23:49:02,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473585268] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:49:02,496 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:49:02,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:49:02,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286705436] [2021-11-12 23:49:02,496 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:49:02,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:49:02,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:49:02,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:49:02,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:49:02,497 INFO L87 Difference]: Start difference. First operand 1140 states and 1523 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-12 23:49:02,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:49:02,721 INFO L93 Difference]: Finished difference Result 1140 states and 1523 transitions. [2021-11-12 23:49:02,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:49:02,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 175 [2021-11-12 23:49:02,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:49:02,726 INFO L225 Difference]: With dead ends: 1140 [2021-11-12 23:49:02,726 INFO L226 Difference]: Without dead ends: 1138 [2021-11-12 23:49:02,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:49:02,728 INFO L933 BasicCegarLoop]: 1481 mSDtfsCounter, 1325 mSDsluCounter, 2958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 4439 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.94ms IncrementalHoareTripleChecker+Time [2021-11-12 23:49:02,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1327 Valid, 4439 Invalid, 2 Unknown, 0 Unchecked, 5.45ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 14.94ms Time] [2021-11-12 23:49:02,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2021-11-12 23:49:02,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1138. [2021-11-12 23:49:02,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 804 states have (on average 1.2549751243781095) internal successors, (1009), 823 states have internal predecessors, (1009), 256 states have call successors, (256), 73 states have call predecessors, (256), 73 states have return successors, (256), 254 states have call predecessors, (256), 254 states have call successors, (256) [2021-11-12 23:49:02,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1521 transitions. [2021-11-12 23:49:02,874 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1521 transitions. Word has length 175 [2021-11-12 23:49:02,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:49:02,874 INFO L470 AbstractCegarLoop]: Abstraction has 1138 states and 1521 transitions. [2021-11-12 23:49:02,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-12 23:49:02,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1521 transitions. [2021-11-12 23:49:02,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-12 23:49:02,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:02,877 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:49:02,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-12 23:49:03,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:49:03,082 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:49:03,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:03,083 INFO L85 PathProgramCache]: Analyzing trace with hash -318201981, now seen corresponding path program 1 times [2021-11-12 23:49:03,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:49:03,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426294617] [2021-11-12 23:49:03,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:03,085 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:49:03,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:49:03,086 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:49:03,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-12 23:49:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:06,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 1916 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 23:49:06,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:08,522 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2021-11-12 23:49:08,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:12,880 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2021-11-12 23:49:12,880 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:49:12,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426294617] [2021-11-12 23:49:12,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426294617] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:49:12,881 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:49:12,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 25 [2021-11-12 23:49:12,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957022574] [2021-11-12 23:49:12,881 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:49:12,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-12 23:49:12,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:49:12,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-12 23:49:12,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-11-12 23:49:12,883 INFO L87 Difference]: Start difference. First operand 1138 states and 1521 transitions. Second operand has 25 states, 23 states have (on average 3.9565217391304346) internal successors, (91), 23 states have internal predecessors, (91), 10 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2021-11-12 23:49:28,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:49:28,759 INFO L93 Difference]: Finished difference Result 2232 states and 3036 transitions. [2021-11-12 23:49:28,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-12 23:49:28,760 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 3.9565217391304346) internal successors, (91), 23 states have internal predecessors, (91), 10 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) Word has length 221 [2021-11-12 23:49:28,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:49:28,769 INFO L225 Difference]: With dead ends: 2232 [2021-11-12 23:49:28,769 INFO L226 Difference]: Without dead ends: 1525 [2021-11-12 23:49:28,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=229, Invalid=1253, Unknown=0, NotChecked=0, Total=1482 [2021-11-12 23:49:28,774 INFO L933 BasicCegarLoop]: 1661 mSDtfsCounter, 1267 mSDsluCounter, 31798 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 1008 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11450.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 33459 SdHoareTripleChecker+Invalid, 2324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.55ms SdHoareTripleChecker+Time, 1008 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11803.34ms IncrementalHoareTripleChecker+Time [2021-11-12 23:49:28,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1324 Valid, 33459 Invalid, 2324 Unknown, 0 Unchecked, 49.55ms Time], IncrementalHoareTripleChecker [1008 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 11803.34ms Time] [2021-11-12 23:49:28,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1525 states. [2021-11-12 23:49:29,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1525 to 1154. [2021-11-12 23:49:29,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 815 states have (on average 1.2515337423312884) internal successors, (1020), 834 states have internal predecessors, (1020), 261 states have call successors, (261), 73 states have call predecessors, (261), 73 states have return successors, (261), 259 states have call predecessors, (261), 259 states have call successors, (261) [2021-11-12 23:49:29,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1542 transitions. [2021-11-12 23:49:29,008 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1542 transitions. Word has length 221 [2021-11-12 23:49:29,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:49:29,008 INFO L470 AbstractCegarLoop]: Abstraction has 1154 states and 1542 transitions. [2021-11-12 23:49:29,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 3.9565217391304346) internal successors, (91), 23 states have internal predecessors, (91), 10 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2021-11-12 23:49:29,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1542 transitions. [2021-11-12 23:49:29,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-12 23:49:29,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:29,011 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:49:29,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-12 23:49:29,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:49:29,216 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:49:29,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:29,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1398825336, now seen corresponding path program 1 times [2021-11-12 23:49:29,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:49:29,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677425003] [2021-11-12 23:49:29,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:29,218 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:49:29,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:49:29,219 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:49:29,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-12 23:49:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:31,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 1605 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:49:31,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:34,980 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:49:34,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:36,157 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:49:36,157 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:49:36,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677425003] [2021-11-12 23:49:36,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677425003] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:49:36,157 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:49:36,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:49:36,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619938171] [2021-11-12 23:49:36,158 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:49:36,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:49:36,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:49:36,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:49:36,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:49:36,160 INFO L87 Difference]: Start difference. First operand 1154 states and 1542 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-12 23:49:36,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:49:36,410 INFO L93 Difference]: Finished difference Result 1154 states and 1542 transitions. [2021-11-12 23:49:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:49:36,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 181 [2021-11-12 23:49:36,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:49:36,414 INFO L225 Difference]: With dead ends: 1154 [2021-11-12 23:49:36,415 INFO L226 Difference]: Without dead ends: 1152 [2021-11-12 23:49:36,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:49:36,416 INFO L933 BasicCegarLoop]: 1479 mSDtfsCounter, 1317 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 4433 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.86ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.26ms IncrementalHoareTripleChecker+Time [2021-11-12 23:49:36,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1319 Valid, 4433 Invalid, 2 Unknown, 0 Unchecked, 5.86ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 17.26ms Time] [2021-11-12 23:49:36,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2021-11-12 23:49:36,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2021-11-12 23:49:36,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 814 states have (on average 1.2506142506142506) internal successors, (1018), 832 states have internal predecessors, (1018), 261 states have call successors, (261), 73 states have call predecessors, (261), 73 states have return successors, (261), 259 states have call predecessors, (261), 259 states have call successors, (261) [2021-11-12 23:49:36,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1540 transitions. [2021-11-12 23:49:36,621 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1540 transitions. Word has length 181 [2021-11-12 23:49:36,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:49:36,622 INFO L470 AbstractCegarLoop]: Abstraction has 1152 states and 1540 transitions. [2021-11-12 23:49:36,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-12 23:49:36,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1540 transitions. [2021-11-12 23:49:36,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-12 23:49:36,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:36,625 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:49:36,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-12 23:49:36,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:49:36,840 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:49:36,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:36,840 INFO L85 PathProgramCache]: Analyzing trace with hash 211628776, now seen corresponding path program 1 times [2021-11-12 23:49:36,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:49:36,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1614476206] [2021-11-12 23:49:36,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:36,842 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:49:36,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:49:36,843 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:49:36,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-12 23:49:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:39,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:49:39,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:43,089 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:49:43,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:44,341 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:49:44,341 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:49:44,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1614476206] [2021-11-12 23:49:44,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1614476206] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:49:44,341 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:49:44,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:49:44,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160855756] [2021-11-12 23:49:44,342 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:49:44,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:49:44,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:49:44,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:49:44,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:49:44,343 INFO L87 Difference]: Start difference. First operand 1152 states and 1540 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-12 23:49:44,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:49:44,841 INFO L93 Difference]: Finished difference Result 2152 states and 2894 transitions. [2021-11-12 23:49:44,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:49:44,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 187 [2021-11-12 23:49:44,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:49:44,874 INFO L225 Difference]: With dead ends: 2152 [2021-11-12 23:49:44,874 INFO L226 Difference]: Without dead ends: 1967 [2021-11-12 23:49:44,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:49:44,876 INFO L933 BasicCegarLoop]: 2483 mSDtfsCounter, 1306 mSDsluCounter, 3832 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 6315 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.26ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 114.61ms IncrementalHoareTripleChecker+Time [2021-11-12 23:49:44,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1306 Valid, 6315 Invalid, 14 Unknown, 0 Unchecked, 8.26ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 114.61ms Time] [2021-11-12 23:49:44,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1967 states. [2021-11-12 23:49:45,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1967 to 1959. [2021-11-12 23:49:45,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1959 states, 1405 states have (on average 1.2825622775800711) internal successors, (1802), 1437 states have internal predecessors, (1802), 435 states have call successors, (435), 115 states have call predecessors, (435), 115 states have return successors, (440), 432 states have call predecessors, (440), 433 states have call successors, (440) [2021-11-12 23:49:45,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 2677 transitions. [2021-11-12 23:49:45,242 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 2677 transitions. Word has length 187 [2021-11-12 23:49:45,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:49:45,243 INFO L470 AbstractCegarLoop]: Abstraction has 1959 states and 2677 transitions. [2021-11-12 23:49:45,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-12 23:49:45,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 2677 transitions. [2021-11-12 23:49:45,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-11-12 23:49:45,244 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:45,244 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:49:45,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-11-12 23:49:45,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:49:45,445 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:49:45,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:45,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1228647228, now seen corresponding path program 1 times [2021-11-12 23:49:45,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:49:45,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251340278] [2021-11-12 23:49:45,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:45,448 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:49:45,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:49:45,449 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:49:45,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-12 23:49:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:48,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 1893 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:49:48,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:53,019 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2021-11-12 23:49:53,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:54,664 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2021-11-12 23:49:54,664 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:49:54,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251340278] [2021-11-12 23:49:54,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251340278] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:49:54,665 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:49:54,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 23:49:54,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064068422] [2021-11-12 23:49:54,667 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:49:54,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:49:54,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:49:54,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:49:54,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:49:54,668 INFO L87 Difference]: Start difference. First operand 1959 states and 2677 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-12 23:49:55,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:49:55,541 INFO L93 Difference]: Finished difference Result 3233 states and 4386 transitions. [2021-11-12 23:49:55,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:49:55,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 230 [2021-11-12 23:49:55,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:49:55,555 INFO L225 Difference]: With dead ends: 3233 [2021-11-12 23:49:55,555 INFO L226 Difference]: Without dead ends: 3231 [2021-11-12 23:49:55,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:49:55,558 INFO L933 BasicCegarLoop]: 1781 mSDtfsCounter, 1207 mSDsluCounter, 6430 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 207.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 8211 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.02ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 212.91ms IncrementalHoareTripleChecker+Time [2021-11-12 23:49:55,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1210 Valid, 8211 Invalid, 31 Unknown, 0 Unchecked, 10.02ms Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 212.91ms Time] [2021-11-12 23:49:55,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3231 states. [2021-11-12 23:49:56,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3231 to 3066. [2021-11-12 23:49:56,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 2227 states have (on average 1.2882801975752134) internal successors, (2869), 2260 states have internal predecessors, (2869), 635 states have call successors, (635), 202 states have call predecessors, (635), 200 states have return successors, (699), 631 states have call predecessors, (699), 633 states have call successors, (699) [2021-11-12 23:49:56,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 4203 transitions. [2021-11-12 23:49:56,070 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 4203 transitions. Word has length 230 [2021-11-12 23:49:56,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:49:56,071 INFO L470 AbstractCegarLoop]: Abstraction has 3066 states and 4203 transitions. [2021-11-12 23:49:56,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-12 23:49:56,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 4203 transitions. [2021-11-12 23:49:56,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-11-12 23:49:56,075 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:56,075 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:49:56,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-12 23:49:56,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:49:56,303 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:49:56,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:56,304 INFO L85 PathProgramCache]: Analyzing trace with hash -66454294, now seen corresponding path program 1 times [2021-11-12 23:49:56,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:49:56,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1433171380] [2021-11-12 23:49:56,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:56,307 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:49:56,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:49:56,308 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:49:56,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-12 23:49:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:59,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 2119 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:49:59,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:00,773 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 893 trivial. 0 not checked. [2021-11-12 23:50:00,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:01,964 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 893 trivial. 0 not checked. [2021-11-12 23:50:01,964 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:01,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1433171380] [2021-11-12 23:50:01,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1433171380] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:01,964 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:01,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-12 23:50:01,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087871485] [2021-11-12 23:50:01,965 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:01,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:50:01,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:01,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:50:01,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:50:01,966 INFO L87 Difference]: Start difference. First operand 3066 states and 4203 transitions. Second operand has 10 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 8 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) [2021-11-12 23:50:03,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:03,715 INFO L93 Difference]: Finished difference Result 5670 states and 7824 transitions. [2021-11-12 23:50:03,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:50:03,717 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 8 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) Word has length 319 [2021-11-12 23:50:03,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:03,731 INFO L225 Difference]: With dead ends: 5670 [2021-11-12 23:50:03,731 INFO L226 Difference]: Without dead ends: 3406 [2021-11-12 23:50:03,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 639 GetRequests, 628 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:50:03,741 INFO L933 BasicCegarLoop]: 1512 mSDtfsCounter, 269 mSDsluCounter, 8909 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 863.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 10421 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.65ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 905.02ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:03,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 10421 Invalid, 119 Unknown, 0 Unchecked, 11.65ms Time], IncrementalHoareTripleChecker [33 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 905.02ms Time] [2021-11-12 23:50:03,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3406 states. [2021-11-12 23:50:04,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3406 to 3256. [2021-11-12 23:50:04,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3256 states, 2385 states have (on average 1.2960167714884696) internal successors, (3091), 2424 states have internal predecessors, (3091), 659 states have call successors, (659), 206 states have call predecessors, (659), 208 states have return successors, (755), 653 states have call predecessors, (755), 657 states have call successors, (755) [2021-11-12 23:50:04,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3256 states to 3256 states and 4505 transitions. [2021-11-12 23:50:04,344 INFO L78 Accepts]: Start accepts. Automaton has 3256 states and 4505 transitions. Word has length 319 [2021-11-12 23:50:04,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:04,345 INFO L470 AbstractCegarLoop]: Abstraction has 3256 states and 4505 transitions. [2021-11-12 23:50:04,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 8 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) [2021-11-12 23:50:04,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3256 states and 4505 transitions. [2021-11-12 23:50:04,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-11-12 23:50:04,348 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:04,348 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:04,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (41)] Ended with exit code 0 [2021-11-12 23:50:04,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:04,563 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:50:04,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:04,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1812189070, now seen corresponding path program 1 times [2021-11-12 23:50:04,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:04,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287609995] [2021-11-12 23:50:04,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:04,567 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:04,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:04,575 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:04,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-12 23:50:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:08,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 2107 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:50:08,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:09,144 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2021-11-12 23:50:09,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:09,984 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2021-11-12 23:50:09,985 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:09,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287609995] [2021-11-12 23:50:09,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287609995] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:09,985 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:09,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:50:09,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266306301] [2021-11-12 23:50:09,986 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:09,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:50:09,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:09,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:50:09,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:50:09,987 INFO L87 Difference]: Start difference. First operand 3256 states and 4505 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-12 23:50:10,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:10,867 INFO L93 Difference]: Finished difference Result 6496 states and 9030 transitions. [2021-11-12 23:50:10,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:50:10,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 307 [2021-11-12 23:50:10,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:10,880 INFO L225 Difference]: With dead ends: 6496 [2021-11-12 23:50:10,880 INFO L226 Difference]: Without dead ends: 3356 [2021-11-12 23:50:10,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:50:10,890 INFO L933 BasicCegarLoop]: 1586 mSDtfsCounter, 720 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 303.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 2669 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.82ms SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 376.85ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:10,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [863 Valid, 2669 Invalid, 144 Unknown, 0 Unchecked, 5.82ms Time], IncrementalHoareTripleChecker [143 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 376.85ms Time] [2021-11-12 23:50:10,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2021-11-12 23:50:11,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 3256. [2021-11-12 23:50:11,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3256 states, 2385 states have (on average 1.2955974842767295) internal successors, (3090), 2424 states have internal predecessors, (3090), 659 states have call successors, (659), 206 states have call predecessors, (659), 208 states have return successors, (755), 653 states have call predecessors, (755), 657 states have call successors, (755) [2021-11-12 23:50:11,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3256 states to 3256 states and 4504 transitions. [2021-11-12 23:50:11,651 INFO L78 Accepts]: Start accepts. Automaton has 3256 states and 4504 transitions. Word has length 307 [2021-11-12 23:50:11,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:11,652 INFO L470 AbstractCegarLoop]: Abstraction has 3256 states and 4504 transitions. [2021-11-12 23:50:11,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-12 23:50:11,652 INFO L276 IsEmpty]: Start isEmpty. Operand 3256 states and 4504 transitions. [2021-11-12 23:50:11,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-11-12 23:50:11,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:11,656 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:11,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:11,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:11,880 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:50:11,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:11,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1331108812, now seen corresponding path program 1 times [2021-11-12 23:50:11,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:11,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163473238] [2021-11-12 23:50:11,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:11,883 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:11,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:11,884 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:11,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-11-12 23:50:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:16,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 2107 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-12 23:50:16,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:17,466 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2021-11-12 23:50:17,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:19,777 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2021-11-12 23:50:19,777 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:19,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163473238] [2021-11-12 23:50:19,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1163473238] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:19,777 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:19,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-12 23:50:19,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409809781] [2021-11-12 23:50:19,778 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:19,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 23:50:19,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:19,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 23:50:19,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:50:19,780 INFO L87 Difference]: Start difference. First operand 3256 states and 4504 transitions. Second operand has 14 states, 14 states have (on average 8.214285714285714) internal successors, (115), 12 states have internal predecessors, (115), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (36), 3 states have call predecessors, (36), 1 states have call successors, (36) [2021-11-12 23:50:22,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:22,018 INFO L93 Difference]: Finished difference Result 7032 states and 9881 transitions. [2021-11-12 23:50:22,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:50:22,019 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.214285714285714) internal successors, (115), 12 states have internal predecessors, (115), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (36), 3 states have call predecessors, (36), 1 states have call successors, (36) Word has length 307 [2021-11-12 23:50:22,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:22,041 INFO L225 Difference]: With dead ends: 7032 [2021-11-12 23:50:22,041 INFO L226 Difference]: Without dead ends: 3918 [2021-11-12 23:50:22,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 600 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:50:22,056 INFO L933 BasicCegarLoop]: 1782 mSDtfsCounter, 1028 mSDsluCounter, 13528 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 820.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 15310 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.37ms SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 933.11ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:22,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1028 Valid, 15310 Invalid, 457 Unknown, 0 Unchecked, 20.37ms Time], IncrementalHoareTripleChecker [408 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 933.11ms Time] [2021-11-12 23:50:22,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3918 states. [2021-11-12 23:50:22,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3918 to 3263. [2021-11-12 23:50:22,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3263 states, 2391 states have (on average 1.2948557089084065) internal successors, (3096), 2430 states have internal predecessors, (3096), 659 states have call successors, (659), 206 states have call predecessors, (659), 209 states have return successors, (756), 654 states have call predecessors, (756), 657 states have call successors, (756) [2021-11-12 23:50:22,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 4511 transitions. [2021-11-12 23:50:22,814 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 4511 transitions. Word has length 307 [2021-11-12 23:50:22,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:22,815 INFO L470 AbstractCegarLoop]: Abstraction has 3263 states and 4511 transitions. [2021-11-12 23:50:22,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.214285714285714) internal successors, (115), 12 states have internal predecessors, (115), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (36), 3 states have call predecessors, (36), 1 states have call successors, (36) [2021-11-12 23:50:22,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 4511 transitions. [2021-11-12 23:50:22,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-11-12 23:50:22,819 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:22,820 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:22,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (43)] Ended with exit code 0 [2021-11-12 23:50:23,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:23,036 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:50:23,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:23,036 INFO L85 PathProgramCache]: Analyzing trace with hash 528206480, now seen corresponding path program 1 times [2021-11-12 23:50:23,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:23,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127293754] [2021-11-12 23:50:23,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:23,039 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:23,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:23,040 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:23,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-12 23:50:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:27,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 2106 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:50:27,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:28,820 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-11-12 23:50:28,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:30,201 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2021-11-12 23:50:30,202 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:30,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127293754] [2021-11-12 23:50:30,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127293754] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:30,202 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:30,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:50:30,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322472832] [2021-11-12 23:50:30,202 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:30,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:50:30,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:30,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:50:30,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:50:30,204 INFO L87 Difference]: Start difference. First operand 3263 states and 4511 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 6 states have internal predecessors, (156), 3 states have call successors, (49), 5 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-12 23:50:32,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:50:34,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:50:35,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:35,275 INFO L93 Difference]: Finished difference Result 3435 states and 4697 transitions. [2021-11-12 23:50:35,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:50:35,275 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 6 states have internal predecessors, (156), 3 states have call successors, (49), 5 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 308 [2021-11-12 23:50:35,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:35,289 INFO L225 Difference]: With dead ends: 3435 [2021-11-12 23:50:35,289 INFO L226 Difference]: Without dead ends: 3433 [2021-11-12 23:50:35,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 608 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:50:35,292 INFO L933 BasicCegarLoop]: 2254 mSDtfsCounter, 1058 mSDsluCounter, 9415 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4287.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 11669 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.08ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4343.03ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:35,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1060 Valid, 11669 Invalid, 36 Unknown, 0 Unchecked, 12.08ms Time], IncrementalHoareTripleChecker [17 Valid, 17 Invalid, 2 Unknown, 0 Unchecked, 4343.03ms Time] [2021-11-12 23:50:35,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2021-11-12 23:50:35,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3271. [2021-11-12 23:50:35,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3271 states, 2397 states have (on average 1.2941176470588236) internal successors, (3102), 2436 states have internal predecessors, (3102), 659 states have call successors, (659), 208 states have call predecessors, (659), 211 states have return successors, (756), 654 states have call predecessors, (756), 657 states have call successors, (756) [2021-11-12 23:50:35,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 4517 transitions. [2021-11-12 23:50:35,832 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 4517 transitions. Word has length 308 [2021-11-12 23:50:35,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:35,832 INFO L470 AbstractCegarLoop]: Abstraction has 3271 states and 4517 transitions. [2021-11-12 23:50:35,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 6 states have internal predecessors, (156), 3 states have call successors, (49), 5 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-12 23:50:35,832 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 4517 transitions. [2021-11-12 23:50:35,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-11-12 23:50:35,836 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:35,836 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:35,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:36,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:36,059 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:50:36,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:36,060 INFO L85 PathProgramCache]: Analyzing trace with hash 388326366, now seen corresponding path program 1 times [2021-11-12 23:50:36,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:36,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106431213] [2021-11-12 23:50:36,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:36,063 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:36,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:36,063 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:36,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-11-12 23:50:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:40,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 2286 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:50:40,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:41,182 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2021-11-12 23:50:41,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:42,034 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2021-11-12 23:50:42,035 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:42,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106431213] [2021-11-12 23:50:42,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106431213] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:42,035 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:42,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 23:50:42,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71237046] [2021-11-12 23:50:42,036 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:42,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:50:42,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:42,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:50:42,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:50:42,038 INFO L87 Difference]: Start difference. First operand 3271 states and 4517 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2021-11-12 23:50:44,341 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:50:47,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:47,247 INFO L93 Difference]: Finished difference Result 7179 states and 10123 transitions. [2021-11-12 23:50:47,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:50:47,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 310 [2021-11-12 23:50:47,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:47,265 INFO L225 Difference]: With dead ends: 7179 [2021-11-12 23:50:47,265 INFO L226 Difference]: Without dead ends: 4127 [2021-11-12 23:50:47,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 619 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:50:47,279 INFO L933 BasicCegarLoop]: 1874 mSDtfsCounter, 459 mSDsluCounter, 3350 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 291 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3821.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 5224 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.87ms SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4212.12ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:47,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [538 Valid, 5224 Invalid, 402 Unknown, 0 Unchecked, 8.87ms Time], IncrementalHoareTripleChecker [291 Valid, 110 Invalid, 1 Unknown, 0 Unchecked, 4212.12ms Time] [2021-11-12 23:50:47,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4127 states. [2021-11-12 23:50:47,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4127 to 3275. [2021-11-12 23:50:47,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3275 states, 2401 states have (on average 1.29362765514369) internal successors, (3106), 2440 states have internal predecessors, (3106), 659 states have call successors, (659), 208 states have call predecessors, (659), 211 states have return successors, (756), 654 states have call predecessors, (756), 657 states have call successors, (756) [2021-11-12 23:50:48,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3275 states to 3275 states and 4521 transitions. [2021-11-12 23:50:48,033 INFO L78 Accepts]: Start accepts. Automaton has 3275 states and 4521 transitions. Word has length 310 [2021-11-12 23:50:48,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:48,034 INFO L470 AbstractCegarLoop]: Abstraction has 3275 states and 4521 transitions. [2021-11-12 23:50:48,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2021-11-12 23:50:48,034 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states and 4521 transitions. [2021-11-12 23:50:48,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-11-12 23:50:48,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:48,039 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:48,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:48,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:48,260 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:50:48,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:48,260 INFO L85 PathProgramCache]: Analyzing trace with hash -436219219, now seen corresponding path program 1 times [2021-11-12 23:50:48,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:48,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682481945] [2021-11-12 23:50:48,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:48,264 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:48,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:48,264 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:48,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-11-12 23:50:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:52,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:50:52,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:51:00,075 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 893 trivial. 0 not checked. [2021-11-12 23:51:00,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:03,424 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 893 trivial. 0 not checked. [2021-11-12 23:51:03,424 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:51:03,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682481945] [2021-11-12 23:51:03,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682481945] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:51:03,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:51:03,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 23:51:03,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347820657] [2021-11-12 23:51:03,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:51:03,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:51:03,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:51:03,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:51:03,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:51:03,427 INFO L87 Difference]: Start difference. First operand 3275 states and 4521 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-12 23:51:04,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:51:04,981 INFO L93 Difference]: Finished difference Result 6163 states and 8709 transitions. [2021-11-12 23:51:04,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:51:04,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 326 [2021-11-12 23:51:04,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:51:05,015 INFO L225 Difference]: With dead ends: 6163 [2021-11-12 23:51:05,015 INFO L226 Difference]: Without dead ends: 6161 [2021-11-12 23:51:05,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 653 GetRequests, 645 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:51:05,020 INFO L933 BasicCegarLoop]: 2051 mSDtfsCounter, 1396 mSDsluCounter, 5366 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 154.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1398 SdHoareTripleChecker+Valid, 7417 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.89ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 158.30ms IncrementalHoareTripleChecker+Time [2021-11-12 23:51:05,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1398 Valid, 7417 Invalid, 17 Unknown, 0 Unchecked, 11.89ms Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 158.30ms Time] [2021-11-12 23:51:05,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6161 states. [2021-11-12 23:51:06,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6161 to 5965. [2021-11-12 23:51:06,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5965 states, 4381 states have (on average 1.3015293312029217) internal successors, (5702), 4472 states have internal predecessors, (5702), 1197 states have call successors, (1197), 384 states have call predecessors, (1197), 383 states have return successors, (1582), 1164 states have call predecessors, (1582), 1195 states have call successors, (1582) [2021-11-12 23:51:06,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5965 states to 5965 states and 8481 transitions. [2021-11-12 23:51:06,274 INFO L78 Accepts]: Start accepts. Automaton has 5965 states and 8481 transitions. Word has length 326 [2021-11-12 23:51:06,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:51:06,275 INFO L470 AbstractCegarLoop]: Abstraction has 5965 states and 8481 transitions. [2021-11-12 23:51:06,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-12 23:51:06,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5965 states and 8481 transitions. [2021-11-12 23:51:06,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-11-12 23:51:06,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:51:06,278 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:51:06,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (46)] Ended with exit code 0 [2021-11-12 23:51:06,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:51:06,478 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:51:06,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:51:06,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1550233514, now seen corresponding path program 1 times [2021-11-12 23:51:06,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:51:06,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396602424] [2021-11-12 23:51:06,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:51:06,483 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:51:06,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:51:06,484 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:51:06,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-12 23:51:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:51:10,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 2165 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:51:10,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:51:11,474 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 893 trivial. 0 not checked. [2021-11-12 23:51:11,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:12,556 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 893 trivial. 0 not checked. [2021-11-12 23:51:12,556 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:51:12,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396602424] [2021-11-12 23:51:12,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396602424] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:51:12,556 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:51:12,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:51:12,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026686452] [2021-11-12 23:51:12,557 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:51:12,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:51:12,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:51:12,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:51:12,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:51:12,558 INFO L87 Difference]: Start difference. First operand 5965 states and 8481 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2021-11-12 23:51:13,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:51:13,888 INFO L93 Difference]: Finished difference Result 10375 states and 14826 transitions. [2021-11-12 23:51:13,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:51:13,888 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 327 [2021-11-12 23:51:13,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:51:13,909 INFO L225 Difference]: With dead ends: 10375 [2021-11-12 23:51:13,910 INFO L226 Difference]: Without dead ends: 5779 [2021-11-12 23:51:13,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 646 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:51:13,926 INFO L933 BasicCegarLoop]: 1478 mSDtfsCounter, 13 mSDsluCounter, 7366 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 227.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 8844 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.61ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 232.07ms IncrementalHoareTripleChecker+Time [2021-11-12 23:51:13,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 8844 Invalid, 22 Unknown, 0 Unchecked, 7.61ms Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 232.07ms Time] [2021-11-12 23:51:13,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5779 states. [2021-11-12 23:51:15,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5779 to 5751. [2021-11-12 23:51:15,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5751 states, 4205 states have (on average 1.2898929845422116) internal successors, (5424), 4292 states have internal predecessors, (5424), 1151 states have call successors, (1151), 368 states have call predecessors, (1151), 391 states have return successors, (1544), 1146 states have call predecessors, (1544), 1149 states have call successors, (1544) [2021-11-12 23:51:15,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 8119 transitions. [2021-11-12 23:51:15,116 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 8119 transitions. Word has length 327 [2021-11-12 23:51:15,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:51:15,117 INFO L470 AbstractCegarLoop]: Abstraction has 5751 states and 8119 transitions. [2021-11-12 23:51:15,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2021-11-12 23:51:15,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 8119 transitions. [2021-11-12 23:51:15,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-11-12 23:51:15,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:51:15,121 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:51:15,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-11-12 23:51:15,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:51:15,336 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:51:15,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:51:15,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1381538169, now seen corresponding path program 1 times [2021-11-12 23:51:15,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:51:15,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234476782] [2021-11-12 23:51:15,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:51:15,339 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:51:15,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:51:15,340 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:51:15,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-11-12 23:51:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:51:19,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 2309 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:51:19,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:51:20,448 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2021-11-12 23:51:20,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:22,073 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 905 trivial. 0 not checked. [2021-11-12 23:51:22,074 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:51:22,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234476782] [2021-11-12 23:51:22,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234476782] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:51:22,074 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:51:22,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:51:22,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276144424] [2021-11-12 23:51:22,074 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:51:22,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:51:22,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:51:22,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:51:22,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:51:22,076 INFO L87 Difference]: Start difference. First operand 5751 states and 8119 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-12 23:51:23,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:51:23,247 INFO L93 Difference]: Finished difference Result 8454 states and 11763 transitions. [2021-11-12 23:51:23,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:51:23,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 348 [2021-11-12 23:51:23,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:51:23,261 INFO L225 Difference]: With dead ends: 8454 [2021-11-12 23:51:23,261 INFO L226 Difference]: Without dead ends: 4072 [2021-11-12 23:51:23,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 688 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:51:23,295 INFO L933 BasicCegarLoop]: 1475 mSDtfsCounter, 135 mSDsluCounter, 8564 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 274.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 10039 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.90ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 281.53ms IncrementalHoareTripleChecker+Time [2021-11-12 23:51:23,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 10039 Invalid, 32 Unknown, 0 Unchecked, 9.90ms Time], IncrementalHoareTripleChecker [9 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 281.53ms Time] [2021-11-12 23:51:23,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4072 states. [2021-11-12 23:51:24,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4072 to 4072. [2021-11-12 23:51:24,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4072 states, 2963 states have (on average 1.2821464731690855) internal successors, (3799), 3040 states have internal predecessors, (3799), 837 states have call successors, (837), 257 states have call predecessors, (837), 268 states have return successors, (994), 826 states have call predecessors, (994), 835 states have call successors, (994) [2021-11-12 23:51:24,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4072 states to 4072 states and 5630 transitions. [2021-11-12 23:51:24,078 INFO L78 Accepts]: Start accepts. Automaton has 4072 states and 5630 transitions. Word has length 348 [2021-11-12 23:51:24,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:51:24,078 INFO L470 AbstractCegarLoop]: Abstraction has 4072 states and 5630 transitions. [2021-11-12 23:51:24,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-12 23:51:24,079 INFO L276 IsEmpty]: Start isEmpty. Operand 4072 states and 5630 transitions. [2021-11-12 23:51:24,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2021-11-12 23:51:24,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:51:24,082 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:51:24,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-11-12 23:51:24,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:51:24,283 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:51:24,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:51:24,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2006122413, now seen corresponding path program 1 times [2021-11-12 23:51:24,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:51:24,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275376827] [2021-11-12 23:51:24,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:51:24,287 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:51:24,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:51:24,288 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:51:24,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-11-12 23:51:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:51:28,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 2268 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:51:28,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:51:28,983 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2021-11-12 23:51:28,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:30,134 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2021-11-12 23:51:30,134 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:51:30,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275376827] [2021-11-12 23:51:30,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1275376827] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:51:30,135 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:51:30,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:51:30,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143444499] [2021-11-12 23:51:30,135 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:51:30,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:51:30,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:51:30,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:51:30,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:51:30,137 INFO L87 Difference]: Start difference. First operand 4072 states and 5630 transitions. Second operand has 8 states, 8 states have (on average 15.5) internal successors, (124), 8 states have internal predecessors, (124), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-12 23:51:31,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:51:31,312 INFO L93 Difference]: Finished difference Result 7774 states and 11051 transitions. [2021-11-12 23:51:31,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:51:31,314 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 8 states have internal predecessors, (124), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 350 [2021-11-12 23:51:31,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:51:31,333 INFO L225 Difference]: With dead ends: 7774 [2021-11-12 23:51:31,334 INFO L226 Difference]: Without dead ends: 4060 [2021-11-12 23:51:31,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 700 GetRequests, 692 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:51:31,352 INFO L933 BasicCegarLoop]: 1477 mSDtfsCounter, 17 mSDsluCounter, 5903 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 220.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 7380 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.23ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 225.21ms IncrementalHoareTripleChecker+Time [2021-11-12 23:51:31,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 7380 Invalid, 19 Unknown, 0 Unchecked, 8.23ms Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 225.21ms Time] [2021-11-12 23:51:31,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4060 states. [2021-11-12 23:51:32,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4060 to 4052. [2021-11-12 23:51:32,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4052 states, 2947 states have (on average 1.2768917543264338) internal successors, (3763), 3032 states have internal predecessors, (3763), 829 states have call successors, (829), 253 states have call predecessors, (829), 272 states have return successors, (1032), 818 states have call predecessors, (1032), 827 states have call successors, (1032) [2021-11-12 23:51:32,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4052 states to 4052 states and 5624 transitions. [2021-11-12 23:51:32,164 INFO L78 Accepts]: Start accepts. Automaton has 4052 states and 5624 transitions. Word has length 350 [2021-11-12 23:51:32,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:51:32,165 INFO L470 AbstractCegarLoop]: Abstraction has 4052 states and 5624 transitions. [2021-11-12 23:51:32,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 8 states have internal predecessors, (124), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-12 23:51:32,166 INFO L276 IsEmpty]: Start isEmpty. Operand 4052 states and 5624 transitions. [2021-11-12 23:51:32,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2021-11-12 23:51:32,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:51:32,171 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:51:32,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2021-11-12 23:51:32,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:51:32,396 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:51:32,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:51:32,396 INFO L85 PathProgramCache]: Analyzing trace with hash -294700177, now seen corresponding path program 1 times [2021-11-12 23:51:32,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:51:32,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504973877] [2021-11-12 23:51:32,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:51:32,399 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:51:32,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:51:32,400 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:51:32,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-11-12 23:51:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:51:36,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 2269 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:51:36,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:51:37,833 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2021-11-12 23:51:37,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:39,139 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2021-11-12 23:51:39,139 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:51:39,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504973877] [2021-11-12 23:51:39,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504973877] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:51:39,139 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:51:39,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:51:39,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293904436] [2021-11-12 23:51:39,140 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:51:39,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:51:39,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:51:39,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:51:39,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:51:39,141 INFO L87 Difference]: Start difference. First operand 4052 states and 5624 transitions. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (47), 5 states have call predecessors, (47), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 23:51:41,309 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:51:42,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:51:42,603 INFO L93 Difference]: Finished difference Result 4228 states and 5820 transitions. [2021-11-12 23:51:42,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:51:42,604 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (47), 5 states have call predecessors, (47), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 350 [2021-11-12 23:51:42,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:51:42,615 INFO L225 Difference]: With dead ends: 4228 [2021-11-12 23:51:42,615 INFO L226 Difference]: Without dead ends: 4226 [2021-11-12 23:51:42,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 701 GetRequests, 692 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:51:42,618 INFO L933 BasicCegarLoop]: 2383 mSDtfsCounter, 1269 mSDsluCounter, 10075 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2401.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 12458 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.82ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2453.37ms IncrementalHoareTripleChecker+Time [2021-11-12 23:51:42,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1271 Valid, 12458 Invalid, 24 Unknown, 0 Unchecked, 13.82ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 2453.37ms Time] [2021-11-12 23:51:42,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4226 states. [2021-11-12 23:51:43,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4226 to 4068. [2021-11-12 23:51:43,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4068 states, 2957 states have (on average 1.2752789989854583) internal successors, (3771), 3042 states have internal predecessors, (3771), 833 states have call successors, (833), 257 states have call predecessors, (833), 274 states have return successors, (1036), 820 states have call predecessors, (1036), 831 states have call successors, (1036) [2021-11-12 23:51:43,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4068 states to 4068 states and 5640 transitions. [2021-11-12 23:51:43,304 INFO L78 Accepts]: Start accepts. Automaton has 4068 states and 5640 transitions. Word has length 350 [2021-11-12 23:51:43,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:51:43,304 INFO L470 AbstractCegarLoop]: Abstraction has 4068 states and 5640 transitions. [2021-11-12 23:51:43,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (47), 5 states have call predecessors, (47), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 23:51:43,305 INFO L276 IsEmpty]: Start isEmpty. Operand 4068 states and 5640 transitions. [2021-11-12 23:51:43,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-11-12 23:51:43,308 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:51:43,308 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:51:43,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-11-12 23:51:43,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:51:43,510 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:51:43,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:51:43,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1632878707, now seen corresponding path program 1 times [2021-11-12 23:51:43,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:51:43,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [621125909] [2021-11-12 23:51:43,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:51:43,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:51:43,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:51:43,515 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:51:43,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-11-12 23:51:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:51:47,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 2282 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:51:47,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:51:48,570 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2021-11-12 23:51:48,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:50,019 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2021-11-12 23:51:50,020 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:51:50,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [621125909] [2021-11-12 23:51:50,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [621125909] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:51:50,021 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:51:50,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:51:50,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132410165] [2021-11-12 23:51:50,021 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:51:50,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:51:50,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:51:50,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:51:50,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:51:50,023 INFO L87 Difference]: Start difference. First operand 4068 states and 5640 transitions. Second operand has 8 states, 8 states have (on average 16.125) internal successors, (129), 6 states have internal predecessors, (129), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-12 23:51:51,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:51:51,133 INFO L93 Difference]: Finished difference Result 6920 states and 9675 transitions. [2021-11-12 23:51:51,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:51:51,133 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 6 states have internal predecessors, (129), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) Word has length 355 [2021-11-12 23:51:51,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:51:51,146 INFO L225 Difference]: With dead ends: 6920 [2021-11-12 23:51:51,146 INFO L226 Difference]: Without dead ends: 4316 [2021-11-12 23:51:51,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 708 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:51:51,157 INFO L933 BasicCegarLoop]: 1493 mSDtfsCounter, 29 mSDsluCounter, 5938 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 369.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 7431 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.40ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 385.16ms IncrementalHoareTripleChecker+Time [2021-11-12 23:51:51,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 7431 Invalid, 31 Unknown, 0 Unchecked, 8.40ms Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 385.16ms Time] [2021-11-12 23:51:51,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4316 states. [2021-11-12 23:51:51,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4316 to 4092. [2021-11-12 23:51:51,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4092 states, 2977 states have (on average 1.2734296271414176) internal successors, (3791), 3058 states have internal predecessors, (3791), 833 states have call successors, (833), 257 states have call predecessors, (833), 278 states have return successors, (1112), 828 states have call predecessors, (1112), 831 states have call successors, (1112) [2021-11-12 23:51:51,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4092 states to 4092 states and 5736 transitions. [2021-11-12 23:51:51,916 INFO L78 Accepts]: Start accepts. Automaton has 4092 states and 5736 transitions. Word has length 355 [2021-11-12 23:51:51,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:51:51,916 INFO L470 AbstractCegarLoop]: Abstraction has 4092 states and 5736 transitions. [2021-11-12 23:51:51,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 6 states have internal predecessors, (129), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-12 23:51:51,916 INFO L276 IsEmpty]: Start isEmpty. Operand 4092 states and 5736 transitions. [2021-11-12 23:51:51,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2021-11-12 23:51:51,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:51:51,919 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:51:51,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-11-12 23:51:52,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:51:52,120 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:51:52,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:51:52,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1919360657, now seen corresponding path program 1 times [2021-11-12 23:51:52,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:51:52,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166854711] [2021-11-12 23:51:52,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:51:52,124 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:51:52,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:51:52,125 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:51:52,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-11-12 23:51:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:51:56,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 2341 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:51:56,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:51:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2021-11-12 23:51:57,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:58,494 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2021-11-12 23:51:58,495 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:51:58,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166854711] [2021-11-12 23:51:58,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166854711] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:51:58,495 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:51:58,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:51:58,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897605840] [2021-11-12 23:51:58,496 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:51:58,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:51:58,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:51:58,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:51:58,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:51:58,497 INFO L87 Difference]: Start difference. First operand 4092 states and 5736 transitions. Second operand has 8 states, 8 states have (on average 16.25) internal successors, (130), 8 states have internal predecessors, (130), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) [2021-11-12 23:51:59,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:51:59,636 INFO L93 Difference]: Finished difference Result 7822 states and 11139 transitions. [2021-11-12 23:51:59,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:51:59,636 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 8 states have internal predecessors, (130), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) Word has length 357 [2021-11-12 23:51:59,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:51:59,649 INFO L225 Difference]: With dead ends: 7822 [2021-11-12 23:51:59,649 INFO L226 Difference]: Without dead ends: 4088 [2021-11-12 23:51:59,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 706 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:51:59,664 INFO L933 BasicCegarLoop]: 1487 mSDtfsCounter, 116 mSDsluCounter, 5827 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 223.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 7314 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.06ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 233.76ms IncrementalHoareTripleChecker+Time [2021-11-12 23:51:59,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 7314 Invalid, 47 Unknown, 0 Unchecked, 8.06ms Time], IncrementalHoareTripleChecker [30 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 233.76ms Time] [2021-11-12 23:51:59,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4088 states. [2021-11-12 23:52:00,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4088 to 4088. [2021-11-12 23:52:00,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4088 states, 2975 states have (on average 1.2722689075630251) internal successors, (3785), 3054 states have internal predecessors, (3785), 833 states have call successors, (833), 257 states have call predecessors, (833), 276 states have return successors, (1074), 828 states have call predecessors, (1074), 831 states have call successors, (1074) [2021-11-12 23:52:00,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4088 states to 4088 states and 5692 transitions. [2021-11-12 23:52:00,441 INFO L78 Accepts]: Start accepts. Automaton has 4088 states and 5692 transitions. Word has length 357 [2021-11-12 23:52:00,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:52:00,441 INFO L470 AbstractCegarLoop]: Abstraction has 4088 states and 5692 transitions. [2021-11-12 23:52:00,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 8 states have internal predecessors, (130), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) [2021-11-12 23:52:00,441 INFO L276 IsEmpty]: Start isEmpty. Operand 4088 states and 5692 transitions. [2021-11-12 23:52:00,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2021-11-12 23:52:00,445 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:52:00,445 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:52:00,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-11-12 23:52:00,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:52:00,646 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:52:00,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:52:00,647 INFO L85 PathProgramCache]: Analyzing trace with hash -93903122, now seen corresponding path program 1 times [2021-11-12 23:52:00,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:52:00,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609637988] [2021-11-12 23:52:00,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:00,651 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:52:00,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:52:00,652 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:52:00,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-11-12 23:52:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:52:05,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 2458 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:52:05,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:52:06,788 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2021-11-12 23:52:06,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:52:07,772 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked. [2021-11-12 23:52:07,772 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:52:07,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609637988] [2021-11-12 23:52:07,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609637988] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:52:07,773 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:52:07,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:52:07,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191811134] [2021-11-12 23:52:07,773 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:52:07,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:52:07,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:52:07,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:52:07,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:52:07,774 INFO L87 Difference]: Start difference. First operand 4088 states and 5692 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-12 23:52:10,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:52:10,166 INFO L93 Difference]: Finished difference Result 8735 states and 12410 transitions. [2021-11-12 23:52:10,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:52:10,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 368 [2021-11-12 23:52:10,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:52:10,182 INFO L225 Difference]: With dead ends: 8735 [2021-11-12 23:52:10,182 INFO L226 Difference]: Without dead ends: 4977 [2021-11-12 23:52:10,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 732 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:52:10,191 INFO L933 BasicCegarLoop]: 1717 mSDtfsCounter, 369 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1161.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 3319 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.82ms SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1231.19ms IncrementalHoareTripleChecker+Time [2021-11-12 23:52:10,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 3319 Invalid, 163 Unknown, 0 Unchecked, 6.82ms Time], IncrementalHoareTripleChecker [79 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 1231.19ms Time] [2021-11-12 23:52:10,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4977 states. [2021-11-12 23:52:10,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4977 to 4113. [2021-11-12 23:52:10,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4113 states, 2991 states have (on average 1.271815446339017) internal successors, (3804), 3070 states have internal predecessors, (3804), 842 states have call successors, (842), 257 states have call predecessors, (842), 276 states have return successors, (1083), 837 states have call predecessors, (1083), 840 states have call successors, (1083) [2021-11-12 23:52:10,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4113 states to 4113 states and 5729 transitions. [2021-11-12 23:52:10,955 INFO L78 Accepts]: Start accepts. Automaton has 4113 states and 5729 transitions. Word has length 368 [2021-11-12 23:52:10,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:52:10,955 INFO L470 AbstractCegarLoop]: Abstraction has 4113 states and 5729 transitions. [2021-11-12 23:52:10,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-12 23:52:10,955 INFO L276 IsEmpty]: Start isEmpty. Operand 4113 states and 5729 transitions. [2021-11-12 23:52:10,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-11-12 23:52:10,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:52:10,958 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:52:11,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2021-11-12 23:52:11,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:52:11,160 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:52:11,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:52:11,160 INFO L85 PathProgramCache]: Analyzing trace with hash 633979307, now seen corresponding path program 1 times [2021-11-12 23:52:11,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:52:11,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269332659] [2021-11-12 23:52:11,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:11,164 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:52:11,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:52:11,165 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:52:11,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-11-12 23:52:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:52:15,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 2332 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:52:15,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:52:16,207 INFO L134 CoverageAnalysis]: Checked inductivity of 922 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2021-11-12 23:52:16,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:52:17,503 INFO L134 CoverageAnalysis]: Checked inductivity of 922 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2021-11-12 23:52:17,503 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:52:17,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269332659] [2021-11-12 23:52:17,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269332659] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:52:17,503 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:52:17,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-12 23:52:17,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365391826] [2021-11-12 23:52:17,504 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:52:17,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:52:17,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:52:17,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:52:17,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:52:17,505 INFO L87 Difference]: Start difference. First operand 4113 states and 5729 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 5 states have internal predecessors, (138), 3 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-12 23:52:18,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:52:18,705 INFO L93 Difference]: Finished difference Result 6861 states and 9570 transitions. [2021-11-12 23:52:18,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:52:18,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 5 states have internal predecessors, (138), 3 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) Word has length 374 [2021-11-12 23:52:18,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:52:18,718 INFO L225 Difference]: With dead ends: 6861 [2021-11-12 23:52:18,718 INFO L226 Difference]: Without dead ends: 4237 [2021-11-12 23:52:18,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 742 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:52:18,725 INFO L933 BasicCegarLoop]: 1503 mSDtfsCounter, 18 mSDsluCounter, 5973 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 336.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 7476 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.35ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 350.45ms IncrementalHoareTripleChecker+Time [2021-11-12 23:52:18,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 7476 Invalid, 33 Unknown, 0 Unchecked, 8.35ms Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 350.45ms Time] [2021-11-12 23:52:18,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4237 states. [2021-11-12 23:52:19,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4237 to 4113. [2021-11-12 23:52:19,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4113 states, 2991 states have (on average 1.271815446339017) internal successors, (3804), 3070 states have internal predecessors, (3804), 842 states have call successors, (842), 257 states have call predecessors, (842), 276 states have return successors, (1083), 837 states have call predecessors, (1083), 840 states have call successors, (1083) [2021-11-12 23:52:19,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4113 states to 4113 states and 5729 transitions. [2021-11-12 23:52:19,412 INFO L78 Accepts]: Start accepts. Automaton has 4113 states and 5729 transitions. Word has length 374 [2021-11-12 23:52:19,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:52:19,412 INFO L470 AbstractCegarLoop]: Abstraction has 4113 states and 5729 transitions. [2021-11-12 23:52:19,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 5 states have internal predecessors, (138), 3 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-12 23:52:19,413 INFO L276 IsEmpty]: Start isEmpty. Operand 4113 states and 5729 transitions. [2021-11-12 23:52:19,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2021-11-12 23:52:19,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:52:19,416 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:52:19,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (54)] Ended with exit code 0 [2021-11-12 23:52:19,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:52:19,617 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:52:19,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:52:19,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1181842608, now seen corresponding path program 1 times [2021-11-12 23:52:19,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:52:19,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267209602] [2021-11-12 23:52:19,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:19,621 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:52:19,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:52:19,622 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:52:19,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2021-11-12 23:52:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:52:23,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 2401 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:52:23,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:52:24,537 INFO L134 CoverageAnalysis]: Checked inductivity of 937 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2021-11-12 23:52:24,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:52:25,697 INFO L134 CoverageAnalysis]: Checked inductivity of 937 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2021-11-12 23:52:25,697 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:52:25,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267209602] [2021-11-12 23:52:25,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267209602] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:52:25,697 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:52:25,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-12 23:52:25,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015688886] [2021-11-12 23:52:25,698 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:52:25,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:52:25,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:52:25,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:52:25,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:52:25,699 INFO L87 Difference]: Start difference. First operand 4113 states and 5729 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (41), 2 states have call predecessors, (41), 1 states have call successors, (41) [2021-11-12 23:52:26,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:52:26,643 INFO L93 Difference]: Finished difference Result 6741 states and 9336 transitions. [2021-11-12 23:52:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:52:26,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (41), 2 states have call predecessors, (41), 1 states have call successors, (41) Word has length 373 [2021-11-12 23:52:26,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:52:26,657 INFO L225 Difference]: With dead ends: 6741 [2021-11-12 23:52:26,657 INFO L226 Difference]: Without dead ends: 4117 [2021-11-12 23:52:26,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 744 GetRequests, 741 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:52:26,664 INFO L933 BasicCegarLoop]: 1487 mSDtfsCounter, 1 mSDsluCounter, 4446 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 207.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5933 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.78ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 214.92ms IncrementalHoareTripleChecker+Time [2021-11-12 23:52:26,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 5933 Invalid, 17 Unknown, 0 Unchecked, 6.78ms Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 214.92ms Time] [2021-11-12 23:52:26,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2021-11-12 23:52:27,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 4099. [2021-11-12 23:52:27,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4099 states, 2983 states have (on average 1.2698625544753603) internal successors, (3788), 3056 states have internal predecessors, (3788), 842 states have call successors, (842), 257 states have call predecessors, (842), 270 states have return successors, (1043), 837 states have call predecessors, (1043), 840 states have call successors, (1043) [2021-11-12 23:52:27,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4099 states to 4099 states and 5673 transitions. [2021-11-12 23:52:27,427 INFO L78 Accepts]: Start accepts. Automaton has 4099 states and 5673 transitions. Word has length 373 [2021-11-12 23:52:27,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:52:27,427 INFO L470 AbstractCegarLoop]: Abstraction has 4099 states and 5673 transitions. [2021-11-12 23:52:27,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (41), 2 states have call predecessors, (41), 1 states have call successors, (41) [2021-11-12 23:52:27,428 INFO L276 IsEmpty]: Start isEmpty. Operand 4099 states and 5673 transitions. [2021-11-12 23:52:27,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2021-11-12 23:52:27,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:52:27,431 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:52:27,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2021-11-12 23:52:27,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:52:27,632 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:52:27,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:52:27,633 INFO L85 PathProgramCache]: Analyzing trace with hash 837876971, now seen corresponding path program 1 times [2021-11-12 23:52:27,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:52:27,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555985047] [2021-11-12 23:52:27,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:27,636 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:52:27,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:52:27,637 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:52:27,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-11-12 23:52:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:52:31,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 2364 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:52:31,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:52:32,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1159 trivial. 0 not checked. [2021-11-12 23:52:32,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:52:35,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1159 trivial. 0 not checked. [2021-11-12 23:52:35,112 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:52:35,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555985047] [2021-11-12 23:52:35,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555985047] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:52:35,112 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:52:35,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 23:52:35,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979286152] [2021-11-12 23:52:35,113 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:52:35,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:52:35,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:52:35,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:52:35,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:52:35,115 INFO L87 Difference]: Start difference. First operand 4099 states and 5673 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 6 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (53), 6 states have call predecessors, (53), 6 states have call successors, (53) [2021-11-12 23:52:37,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:52:37,151 INFO L93 Difference]: Finished difference Result 7801 states and 10861 transitions. [2021-11-12 23:52:37,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:52:37,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 6 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (53), 6 states have call predecessors, (53), 6 states have call successors, (53) Word has length 408 [2021-11-12 23:52:37,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:52:37,173 INFO L225 Difference]: With dead ends: 7801 [2021-11-12 23:52:37,173 INFO L226 Difference]: Without dead ends: 3941 [2021-11-12 23:52:37,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 810 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:52:37,189 INFO L933 BasicCegarLoop]: 1467 mSDtfsCounter, 78 mSDsluCounter, 4290 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1136.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 5757 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.84ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1174.77ms IncrementalHoareTripleChecker+Time [2021-11-12 23:52:37,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 5757 Invalid, 116 Unknown, 0 Unchecked, 7.84ms Time], IncrementalHoareTripleChecker [27 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 1174.77ms Time] [2021-11-12 23:52:37,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2021-11-12 23:52:37,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3933. [2021-11-12 23:52:37,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3933 states, 2862 states have (on average 1.2686932215234101) internal successors, (3631), 2931 states have internal predecessors, (3631), 805 states have call successors, (805), 256 states have call predecessors, (805), 262 states have return successors, (881), 796 states have call predecessors, (881), 803 states have call successors, (881) [2021-11-12 23:52:37,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3933 states to 3933 states and 5317 transitions. [2021-11-12 23:52:37,907 INFO L78 Accepts]: Start accepts. Automaton has 3933 states and 5317 transitions. Word has length 408 [2021-11-12 23:52:37,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:52:37,908 INFO L470 AbstractCegarLoop]: Abstraction has 3933 states and 5317 transitions. [2021-11-12 23:52:37,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 6 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (53), 6 states have call predecessors, (53), 6 states have call successors, (53) [2021-11-12 23:52:37,909 INFO L276 IsEmpty]: Start isEmpty. Operand 3933 states and 5317 transitions. [2021-11-12 23:52:37,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-11-12 23:52:37,912 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:52:37,912 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:52:37,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2021-11-12 23:52:38,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:52:38,128 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ttusb_free_iso_urbsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:52:38,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:52:38,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1384678796, now seen corresponding path program 1 times [2021-11-12 23:52:38,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:52:38,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229034574] [2021-11-12 23:52:38,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:38,132 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:52:38,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:52:38,133 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:52:38,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6993e2bb-dcb4-4add-ba5e-de7eb8601050/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process