./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--net--can--janz-ican3.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_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/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_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/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_4b7afa9a-139f-4eb5-94d2-50c56b11b024/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 a63a35a997d4cef3a03c29c7166a2a1f9c94c58040c56bbf24b94b5923949bbd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:31:24,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:31:24,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:31:24,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:31:24,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:31:24,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:31:24,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:31:24,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:31:24,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:31:24,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:31:24,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:31:24,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:31:24,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:31:24,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:31:24,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:31:24,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:31:24,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:31:24,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:31:24,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:31:24,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:31:24,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:31:24,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:31:24,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:31:24,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:31:24,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:31:24,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:31:24,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:31:24,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:31:24,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:31:24,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:31:24,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:31:24,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:31:24,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:31:24,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:31:24,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:31:24,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:31:24,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:31:24,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:31:24,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:31:24,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:31:24,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:31:24,848 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 02:31:24,883 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:31:24,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:31:24,885 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:31:24,885 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:31:24,885 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:31:24,886 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:31:24,886 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:31:24,886 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:31:24,887 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:31:24,887 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:31:24,887 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:31:24,887 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:31:24,888 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:31:24,888 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:31:24,888 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:31:24,889 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:31:24,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:31:24,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:31:24,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:31:24,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:31:24,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:31:24,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:31:24,891 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:31:24,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:31:24,892 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:31:24,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:31:24,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:31:24,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:31:24,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:31:24,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:31:24,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:31:24,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:31:24,895 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:31:24,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:31:24,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:31:24,895 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:31:24,896 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:31:24,896 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_4b7afa9a-139f-4eb5-94d2-50c56b11b024/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a63a35a997d4cef3a03c29c7166a2a1f9c94c58040c56bbf24b94b5923949bbd [2021-11-13 02:31:25,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:31:25,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:31:25,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:31:25,247 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:31:25,248 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:31:25,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i [2021-11-13 02:31:25,351 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/data/0364bfa43/5571aa78cd274b93999b723a4026854c/FLAGfe5bce087 [2021-11-13 02:31:26,524 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:31:26,527 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i [2021-11-13 02:31:26,607 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/data/0364bfa43/5571aa78cd274b93999b723a4026854c/FLAGfe5bce087 [2021-11-13 02:31:26,727 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/data/0364bfa43/5571aa78cd274b93999b723a4026854c [2021-11-13 02:31:26,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:31:26,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:31:26,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:31:26,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:31:26,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:31:26,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:31:26" (1/1) ... [2021-11-13 02:31:26,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6094a92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:26, skipping insertion in model container [2021-11-13 02:31:26,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:31:26" (1/1) ... [2021-11-13 02:31:26,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:31:26,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:31:28,648 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,092 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,100 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,101 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,108 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,131 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,160 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,167 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,174 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,174 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,186 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,194 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,201 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,241 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,250 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,257 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,259 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,263 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,264 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,274 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,274 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,533 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,534 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,535 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,536 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,537 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,544 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,547 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,549 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,550 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,571 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,840 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:29,851 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:31:31,161 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397439,397452] [2021-11-13 02:31:31,164 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397584,397597] [2021-11-13 02:31:31,165 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397730,397743] [2021-11-13 02:31:31,166 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397895,397908] [2021-11-13 02:31:31,167 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398053,398066] [2021-11-13 02:31:31,168 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398211,398224] [2021-11-13 02:31:31,168 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398369,398382] [2021-11-13 02:31:31,169 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398529,398542] [2021-11-13 02:31:31,170 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398688,398701] [2021-11-13 02:31:31,170 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398827,398840] [2021-11-13 02:31:31,171 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398969,398982] [2021-11-13 02:31:31,172 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399118,399131] [2021-11-13 02:31:31,173 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399257,399270] [2021-11-13 02:31:31,173 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399412,399425] [2021-11-13 02:31:31,174 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399572,399585] [2021-11-13 02:31:31,175 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399723,399736] [2021-11-13 02:31:31,176 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399874,399887] [2021-11-13 02:31:31,176 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400026,400039] [2021-11-13 02:31:31,177 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400175,400188] [2021-11-13 02:31:31,178 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400323,400336] [2021-11-13 02:31:31,178 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400480,400493] [2021-11-13 02:31:31,179 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400629,400642] [2021-11-13 02:31:31,180 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400785,400798] [2021-11-13 02:31:31,180 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400938,400951] [2021-11-13 02:31:31,181 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401084,401097] [2021-11-13 02:31:31,182 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401227,401240] [2021-11-13 02:31:31,182 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401379,401392] [2021-11-13 02:31:31,183 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401525,401538] [2021-11-13 02:31:31,184 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401670,401683] [2021-11-13 02:31:31,184 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401824,401837] [2021-11-13 02:31:31,185 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401975,401988] [2021-11-13 02:31:31,186 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402130,402143] [2021-11-13 02:31:31,187 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402282,402295] [2021-11-13 02:31:31,187 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402437,402450] [2021-11-13 02:31:31,188 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402601,402614] [2021-11-13 02:31:31,189 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402757,402770] [2021-11-13 02:31:31,189 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402921,402934] [2021-11-13 02:31:31,190 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403063,403076] [2021-11-13 02:31:31,191 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403221,403234] [2021-11-13 02:31:31,191 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403388,403401] [2021-11-13 02:31:31,192 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403547,403560] [2021-11-13 02:31:31,193 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403706,403719] [2021-11-13 02:31:31,193 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403855,403868] [2021-11-13 02:31:31,194 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404002,404015] [2021-11-13 02:31:31,195 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404141,404154] [2021-11-13 02:31:31,195 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404304,404317] [2021-11-13 02:31:31,196 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404470,404483] [2021-11-13 02:31:31,197 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404634,404647] [2021-11-13 02:31:31,198 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404799,404812] [2021-11-13 02:31:31,198 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404964,404977] [2021-11-13 02:31:31,199 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405130,405143] [2021-11-13 02:31:31,200 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405295,405308] [2021-11-13 02:31:31,200 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405462,405475] [2021-11-13 02:31:31,201 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405622,405635] [2021-11-13 02:31:31,202 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405784,405797] [2021-11-13 02:31:31,202 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405943,405956] [2021-11-13 02:31:31,203 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406089,406102] [2021-11-13 02:31:31,204 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406232,406245] [2021-11-13 02:31:31,204 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406376,406389] [2021-11-13 02:31:31,205 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406519,406532] [2021-11-13 02:31:31,206 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406663,406676] [2021-11-13 02:31:31,206 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406804,406817] [2021-11-13 02:31:31,207 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406942,406955] [2021-11-13 02:31:31,208 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407100,407113] [2021-11-13 02:31:31,208 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407259,407272] [2021-11-13 02:31:31,209 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407415,407428] [2021-11-13 02:31:31,210 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407564,407577] [2021-11-13 02:31:31,210 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407716,407729] [2021-11-13 02:31:31,211 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407867,407880] [2021-11-13 02:31:31,212 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408016,408029] [2021-11-13 02:31:31,212 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408168,408181] [2021-11-13 02:31:31,213 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408316,408329] [2021-11-13 02:31:31,214 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408469,408482] [2021-11-13 02:31:31,214 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408620,408633] [2021-11-13 02:31:31,215 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408770,408783] [2021-11-13 02:31:31,215 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408917,408930] [2021-11-13 02:31:31,216 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409068,409081] [2021-11-13 02:31:31,217 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409219,409232] [2021-11-13 02:31:31,217 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409367,409380] [2021-11-13 02:31:31,218 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409533,409546] [2021-11-13 02:31:31,218 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409702,409715] [2021-11-13 02:31:31,219 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409869,409882] [2021-11-13 02:31:31,220 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410037,410050] [2021-11-13 02:31:31,220 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410187,410200] [2021-11-13 02:31:31,221 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410334,410347] [2021-11-13 02:31:31,221 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410495,410508] [2021-11-13 02:31:31,222 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410665,410678] [2021-11-13 02:31:31,223 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410827,410840] [2021-11-13 02:31:31,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:31:31,270 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-13 02:31:31,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@378c8370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:31, skipping insertion in model container [2021-11-13 02:31:31,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:31:31,272 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:31:31,274 INFO L158 Benchmark]: Toolchain (without parser) took 4539.53ms. Allocated memory was 96.5MB in the beginning and 184.5MB in the end (delta: 88.1MB). Free memory was 65.3MB in the beginning and 116.3MB in the end (delta: -50.9MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2021-11-13 02:31:31,275 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory was 51.4MB in the beginning and 51.4MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:31:31,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4534.57ms. Allocated memory was 96.5MB in the beginning and 184.5MB in the end (delta: 88.1MB). Free memory was 65.1MB in the beginning and 116.3MB in the end (delta: -51.1MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2021-11-13 02:31:31,278 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory was 51.4MB in the beginning and 51.4MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4534.57ms. Allocated memory was 96.5MB in the beginning and 184.5MB in the end (delta: 88.1MB). Free memory was 65.1MB in the beginning and 116.3MB in the end (delta: -51.1MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6814]: 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_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/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_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/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_4b7afa9a-139f-4eb5-94d2-50c56b11b024/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 a63a35a997d4cef3a03c29c7166a2a1f9c94c58040c56bbf24b94b5923949bbd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:31:33,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:31:33,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:31:33,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:31:33,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:31:33,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:31:33,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:31:33,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:31:33,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:31:33,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:31:33,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:31:33,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:31:33,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:31:33,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:31:33,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:31:33,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:31:33,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:31:33,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:31:33,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:31:33,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:31:33,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:31:33,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:31:33,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:31:33,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:31:33,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:31:33,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:31:33,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:31:33,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:31:33,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:31:33,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:31:33,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:31:33,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:31:33,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:31:33,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:31:33,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:31:33,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:31:33,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:31:33,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:31:33,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:31:33,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:31:33,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:31:33,782 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 02:31:33,842 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:31:33,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:31:33,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:31:33,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:31:33,845 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:31:33,845 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:31:33,845 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:31:33,846 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:31:33,846 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:31:33,846 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:31:33,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:31:33,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:31:33,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:31:33,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:31:33,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:31:33,851 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:31:33,851 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:31:33,851 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:31:33,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:31:33,852 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:31:33,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:31:33,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:31:33,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:31:33,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:31:33,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:31:33,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:31:33,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:31:33,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:31:33,854 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:31:33,855 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:31:33,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:31:33,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:31:33,856 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:31:33,856 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_4b7afa9a-139f-4eb5-94d2-50c56b11b024/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a63a35a997d4cef3a03c29c7166a2a1f9c94c58040c56bbf24b94b5923949bbd [2021-11-13 02:31:34,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:31:34,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:31:34,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:31:34,433 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:31:34,434 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:31:34,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i [2021-11-13 02:31:34,541 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/data/3bafc6c0c/f16a1d59571742f0889d696768fb76aa/FLAG2486c1392 [2021-11-13 02:31:35,773 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:31:35,773 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i [2021-11-13 02:31:35,830 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/data/3bafc6c0c/f16a1d59571742f0889d696768fb76aa/FLAG2486c1392 [2021-11-13 02:31:35,976 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/data/3bafc6c0c/f16a1d59571742f0889d696768fb76aa [2021-11-13 02:31:35,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:31:35,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:31:35,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:31:35,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:31:35,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:31:35,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:31:35" (1/1) ... [2021-11-13 02:31:35,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@791c8b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:35, skipping insertion in model container [2021-11-13 02:31:35,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:31:35" (1/1) ... [2021-11-13 02:31:36,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:31:36,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:31:41,456 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397439,397452] [2021-11-13 02:31:41,460 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397584,397597] [2021-11-13 02:31:41,461 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397730,397743] [2021-11-13 02:31:41,470 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397895,397908] [2021-11-13 02:31:41,472 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398053,398066] [2021-11-13 02:31:41,480 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398211,398224] [2021-11-13 02:31:41,481 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398369,398382] [2021-11-13 02:31:41,482 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398529,398542] [2021-11-13 02:31:41,483 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398688,398701] [2021-11-13 02:31:41,483 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398827,398840] [2021-11-13 02:31:41,484 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398969,398982] [2021-11-13 02:31:41,485 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399118,399131] [2021-11-13 02:31:41,486 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399257,399270] [2021-11-13 02:31:41,486 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399412,399425] [2021-11-13 02:31:41,487 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399572,399585] [2021-11-13 02:31:41,488 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399723,399736] [2021-11-13 02:31:41,488 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399874,399887] [2021-11-13 02:31:41,489 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400026,400039] [2021-11-13 02:31:41,492 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400175,400188] [2021-11-13 02:31:41,494 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400323,400336] [2021-11-13 02:31:41,496 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400480,400493] [2021-11-13 02:31:41,496 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400629,400642] [2021-11-13 02:31:41,497 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400785,400798] [2021-11-13 02:31:41,498 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400938,400951] [2021-11-13 02:31:41,499 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401084,401097] [2021-11-13 02:31:41,500 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401227,401240] [2021-11-13 02:31:41,502 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401379,401392] [2021-11-13 02:31:41,504 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401525,401538] [2021-11-13 02:31:41,505 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401670,401683] [2021-11-13 02:31:41,506 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401824,401837] [2021-11-13 02:31:41,508 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401975,401988] [2021-11-13 02:31:41,509 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402130,402143] [2021-11-13 02:31:41,513 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402282,402295] [2021-11-13 02:31:41,513 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402437,402450] [2021-11-13 02:31:41,514 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402601,402614] [2021-11-13 02:31:41,515 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402757,402770] [2021-11-13 02:31:41,515 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402921,402934] [2021-11-13 02:31:41,516 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403063,403076] [2021-11-13 02:31:41,517 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403221,403234] [2021-11-13 02:31:41,517 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403388,403401] [2021-11-13 02:31:41,518 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403547,403560] [2021-11-13 02:31:41,518 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403706,403719] [2021-11-13 02:31:41,519 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403855,403868] [2021-11-13 02:31:41,519 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404002,404015] [2021-11-13 02:31:41,520 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404141,404154] [2021-11-13 02:31:41,521 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404304,404317] [2021-11-13 02:31:41,521 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404470,404483] [2021-11-13 02:31:41,523 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404634,404647] [2021-11-13 02:31:41,524 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404799,404812] [2021-11-13 02:31:41,525 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404964,404977] [2021-11-13 02:31:41,525 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405130,405143] [2021-11-13 02:31:41,526 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405295,405308] [2021-11-13 02:31:41,526 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405462,405475] [2021-11-13 02:31:41,527 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405622,405635] [2021-11-13 02:31:41,527 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405784,405797] [2021-11-13 02:31:41,528 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405943,405956] [2021-11-13 02:31:41,529 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406089,406102] [2021-11-13 02:31:41,530 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406232,406245] [2021-11-13 02:31:41,530 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406376,406389] [2021-11-13 02:31:41,531 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406519,406532] [2021-11-13 02:31:41,531 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406663,406676] [2021-11-13 02:31:41,533 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406804,406817] [2021-11-13 02:31:41,533 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406942,406955] [2021-11-13 02:31:41,534 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407100,407113] [2021-11-13 02:31:41,535 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407259,407272] [2021-11-13 02:31:41,535 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407415,407428] [2021-11-13 02:31:41,536 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407564,407577] [2021-11-13 02:31:41,538 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407716,407729] [2021-11-13 02:31:41,539 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407867,407880] [2021-11-13 02:31:41,539 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408016,408029] [2021-11-13 02:31:41,540 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408168,408181] [2021-11-13 02:31:41,543 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408316,408329] [2021-11-13 02:31:41,543 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408469,408482] [2021-11-13 02:31:41,544 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408620,408633] [2021-11-13 02:31:41,545 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408770,408783] [2021-11-13 02:31:41,545 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408917,408930] [2021-11-13 02:31:41,546 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409068,409081] [2021-11-13 02:31:41,547 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409219,409232] [2021-11-13 02:31:41,547 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409367,409380] [2021-11-13 02:31:41,548 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409533,409546] [2021-11-13 02:31:41,549 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409702,409715] [2021-11-13 02:31:41,549 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409869,409882] [2021-11-13 02:31:41,550 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410037,410050] [2021-11-13 02:31:41,551 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410187,410200] [2021-11-13 02:31:41,551 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410334,410347] [2021-11-13 02:31:41,552 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410495,410508] [2021-11-13 02:31:41,552 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410665,410678] [2021-11-13 02:31:41,553 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410827,410840] [2021-11-13 02:31:41,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:31:41,633 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:31:41,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:31:42,183 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397439,397452] [2021-11-13 02:31:42,184 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397584,397597] [2021-11-13 02:31:42,185 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397730,397743] [2021-11-13 02:31:42,185 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397895,397908] [2021-11-13 02:31:42,186 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398053,398066] [2021-11-13 02:31:42,187 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398211,398224] [2021-11-13 02:31:42,188 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398369,398382] [2021-11-13 02:31:42,188 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398529,398542] [2021-11-13 02:31:42,189 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398688,398701] [2021-11-13 02:31:42,189 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398827,398840] [2021-11-13 02:31:42,190 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398969,398982] [2021-11-13 02:31:42,190 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399118,399131] [2021-11-13 02:31:42,190 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399257,399270] [2021-11-13 02:31:42,191 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399412,399425] [2021-11-13 02:31:42,192 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399572,399585] [2021-11-13 02:31:42,192 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399723,399736] [2021-11-13 02:31:42,193 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399874,399887] [2021-11-13 02:31:42,194 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400026,400039] [2021-11-13 02:31:42,195 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400175,400188] [2021-11-13 02:31:42,196 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400323,400336] [2021-11-13 02:31:42,196 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400480,400493] [2021-11-13 02:31:42,197 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400629,400642] [2021-11-13 02:31:42,198 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400785,400798] [2021-11-13 02:31:42,198 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400938,400951] [2021-11-13 02:31:42,199 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401084,401097] [2021-11-13 02:31:42,199 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401227,401240] [2021-11-13 02:31:42,200 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401379,401392] [2021-11-13 02:31:42,200 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401525,401538] [2021-11-13 02:31:42,200 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401670,401683] [2021-11-13 02:31:42,201 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401824,401837] [2021-11-13 02:31:42,201 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401975,401988] [2021-11-13 02:31:42,202 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402130,402143] [2021-11-13 02:31:42,203 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402282,402295] [2021-11-13 02:31:42,203 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402437,402450] [2021-11-13 02:31:42,203 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402601,402614] [2021-11-13 02:31:42,204 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402757,402770] [2021-11-13 02:31:42,204 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402921,402934] [2021-11-13 02:31:42,205 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403063,403076] [2021-11-13 02:31:42,206 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403221,403234] [2021-11-13 02:31:42,207 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403388,403401] [2021-11-13 02:31:42,208 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403547,403560] [2021-11-13 02:31:42,208 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403706,403719] [2021-11-13 02:31:42,209 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403855,403868] [2021-11-13 02:31:42,209 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404002,404015] [2021-11-13 02:31:42,210 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404141,404154] [2021-11-13 02:31:42,210 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404304,404317] [2021-11-13 02:31:42,211 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404470,404483] [2021-11-13 02:31:42,211 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404634,404647] [2021-11-13 02:31:42,212 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404799,404812] [2021-11-13 02:31:42,212 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404964,404977] [2021-11-13 02:31:42,212 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405130,405143] [2021-11-13 02:31:42,217 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405295,405308] [2021-11-13 02:31:42,218 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405462,405475] [2021-11-13 02:31:42,218 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405622,405635] [2021-11-13 02:31:42,219 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405784,405797] [2021-11-13 02:31:42,219 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405943,405956] [2021-11-13 02:31:42,220 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406089,406102] [2021-11-13 02:31:42,220 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406232,406245] [2021-11-13 02:31:42,221 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406376,406389] [2021-11-13 02:31:42,223 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406519,406532] [2021-11-13 02:31:42,225 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406663,406676] [2021-11-13 02:31:42,226 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406804,406817] [2021-11-13 02:31:42,226 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406942,406955] [2021-11-13 02:31:42,227 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407100,407113] [2021-11-13 02:31:42,228 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407259,407272] [2021-11-13 02:31:42,229 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407415,407428] [2021-11-13 02:31:42,230 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407564,407577] [2021-11-13 02:31:42,230 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407716,407729] [2021-11-13 02:31:42,231 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407867,407880] [2021-11-13 02:31:42,238 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408016,408029] [2021-11-13 02:31:42,238 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408168,408181] [2021-11-13 02:31:42,239 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408316,408329] [2021-11-13 02:31:42,239 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408469,408482] [2021-11-13 02:31:42,240 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408620,408633] [2021-11-13 02:31:42,240 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408770,408783] [2021-11-13 02:31:42,241 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408917,408930] [2021-11-13 02:31:42,241 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409068,409081] [2021-11-13 02:31:42,241 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409219,409232] [2021-11-13 02:31:42,244 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409367,409380] [2021-11-13 02:31:42,245 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409533,409546] [2021-11-13 02:31:42,245 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409702,409715] [2021-11-13 02:31:42,246 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409869,409882] [2021-11-13 02:31:42,247 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410037,410050] [2021-11-13 02:31:42,247 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410187,410200] [2021-11-13 02:31:42,247 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410334,410347] [2021-11-13 02:31:42,248 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410495,410508] [2021-11-13 02:31:42,248 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410665,410678] [2021-11-13 02:31:42,248 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410827,410840] [2021-11-13 02:31:42,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:31:42,281 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:31:42,877 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397439,397452] [2021-11-13 02:31:42,878 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397584,397597] [2021-11-13 02:31:42,878 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397730,397743] [2021-11-13 02:31:42,878 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[397895,397908] [2021-11-13 02:31:42,879 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398053,398066] [2021-11-13 02:31:42,879 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398211,398224] [2021-11-13 02:31:42,879 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398369,398382] [2021-11-13 02:31:42,880 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398529,398542] [2021-11-13 02:31:42,880 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398688,398701] [2021-11-13 02:31:42,881 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398827,398840] [2021-11-13 02:31:42,881 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[398969,398982] [2021-11-13 02:31:42,881 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399118,399131] [2021-11-13 02:31:42,882 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399257,399270] [2021-11-13 02:31:42,882 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399412,399425] [2021-11-13 02:31:42,882 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399572,399585] [2021-11-13 02:31:42,883 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399723,399736] [2021-11-13 02:31:42,883 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[399874,399887] [2021-11-13 02:31:42,883 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400026,400039] [2021-11-13 02:31:42,884 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400175,400188] [2021-11-13 02:31:42,884 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400323,400336] [2021-11-13 02:31:42,884 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400480,400493] [2021-11-13 02:31:42,885 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400629,400642] [2021-11-13 02:31:42,885 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400785,400798] [2021-11-13 02:31:42,886 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[400938,400951] [2021-11-13 02:31:42,886 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401084,401097] [2021-11-13 02:31:42,887 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401227,401240] [2021-11-13 02:31:42,889 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401379,401392] [2021-11-13 02:31:42,890 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401525,401538] [2021-11-13 02:31:42,890 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401670,401683] [2021-11-13 02:31:42,890 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401824,401837] [2021-11-13 02:31:42,891 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[401975,401988] [2021-11-13 02:31:42,891 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402130,402143] [2021-11-13 02:31:42,892 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402282,402295] [2021-11-13 02:31:42,892 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402437,402450] [2021-11-13 02:31:42,892 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402601,402614] [2021-11-13 02:31:42,893 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402757,402770] [2021-11-13 02:31:42,893 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[402921,402934] [2021-11-13 02:31:42,894 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403063,403076] [2021-11-13 02:31:42,894 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403221,403234] [2021-11-13 02:31:42,894 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403388,403401] [2021-11-13 02:31:42,896 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403547,403560] [2021-11-13 02:31:42,896 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403706,403719] [2021-11-13 02:31:42,897 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[403855,403868] [2021-11-13 02:31:42,899 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404002,404015] [2021-11-13 02:31:42,899 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404141,404154] [2021-11-13 02:31:42,900 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404304,404317] [2021-11-13 02:31:42,900 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404470,404483] [2021-11-13 02:31:42,901 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404634,404647] [2021-11-13 02:31:42,901 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404799,404812] [2021-11-13 02:31:42,902 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[404964,404977] [2021-11-13 02:31:42,902 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405130,405143] [2021-11-13 02:31:42,903 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405295,405308] [2021-11-13 02:31:42,903 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405462,405475] [2021-11-13 02:31:42,903 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405622,405635] [2021-11-13 02:31:42,904 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405784,405797] [2021-11-13 02:31:42,904 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[405943,405956] [2021-11-13 02:31:42,905 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406089,406102] [2021-11-13 02:31:42,905 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406232,406245] [2021-11-13 02:31:42,906 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406376,406389] [2021-11-13 02:31:42,906 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406519,406532] [2021-11-13 02:31:42,906 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406663,406676] [2021-11-13 02:31:42,907 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406804,406817] [2021-11-13 02:31:42,907 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[406942,406955] [2021-11-13 02:31:42,908 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407100,407113] [2021-11-13 02:31:42,908 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407259,407272] [2021-11-13 02:31:42,909 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407415,407428] [2021-11-13 02:31:42,910 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407564,407577] [2021-11-13 02:31:42,910 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407716,407729] [2021-11-13 02:31:42,911 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[407867,407880] [2021-11-13 02:31:42,911 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408016,408029] [2021-11-13 02:31:42,912 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408168,408181] [2021-11-13 02:31:42,912 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408316,408329] [2021-11-13 02:31:42,913 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408469,408482] [2021-11-13 02:31:42,913 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408620,408633] [2021-11-13 02:31:42,913 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408770,408783] [2021-11-13 02:31:42,914 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[408917,408930] [2021-11-13 02:31:42,915 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409068,409081] [2021-11-13 02:31:42,915 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409219,409232] [2021-11-13 02:31:42,915 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409367,409380] [2021-11-13 02:31:42,917 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409533,409546] [2021-11-13 02:31:42,921 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409702,409715] [2021-11-13 02:31:42,922 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[409869,409882] [2021-11-13 02:31:42,922 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410037,410050] [2021-11-13 02:31:42,923 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410187,410200] [2021-11-13 02:31:42,923 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410334,410347] [2021-11-13 02:31:42,923 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410495,410508] [2021-11-13 02:31:42,924 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410665,410678] [2021-11-13 02:31:42,924 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i[410827,410840] [2021-11-13 02:31:42,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:31:43,234 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:31:43,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:43 WrapperNode [2021-11-13 02:31:43,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:31:43,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:31:43,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:31:43,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:31:43,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:43" (1/1) ... [2021-11-13 02:31:43,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:43" (1/1) ... [2021-11-13 02:31:43,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:31:43,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:31:43,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:31:43,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:31:43,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:43" (1/1) ... [2021-11-13 02:31:43,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:43" (1/1) ... [2021-11-13 02:31:43,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:43" (1/1) ... [2021-11-13 02:31:43,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:43" (1/1) ... [2021-11-13 02:31:43,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:43" (1/1) ... [2021-11-13 02:31:43,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:43" (1/1) ... [2021-11-13 02:31:43,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:43" (1/1) ... [2021-11-13 02:31:43,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:31:43,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:31:43,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:31:43,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:31:43,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:43" (1/1) ... [2021-11-13 02:31:43,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:31:44,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:31:44,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:31:44,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:31:44,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-13 02:31:44,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-13 02:31:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure ican3_open [2021-11-13 02:31:44,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ican3_open [2021-11-13 02:31:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 02:31:44,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 02:31:44,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-13 02:31:44,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-13 02:31:44,090 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-13 02:31:44,090 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-13 02:31:44,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 02:31:44,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 02:31:44,091 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-13 02:31:44,091 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-13 02:31:44,091 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-13 02:31:44,091 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-13 02:31:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-13 02:31:44,092 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-13 02:31:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-13 02:31:44,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-13 02:31:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-13 02:31:44,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-13 02:31:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 02:31:44,093 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 02:31:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure ican3_reset_module [2021-11-13 02:31:44,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ican3_reset_module [2021-11-13 02:31:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure ican3_set_bus_state [2021-11-13 02:31:44,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ican3_set_bus_state [2021-11-13 02:31:44,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 02:31:44,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 02:31:44,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 02:31:44,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 02:31:44,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-13 02:31:44,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-13 02:31:44,096 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-11-13 02:31:44,096 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-11-13 02:31:44,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:31:44,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-13 02:31:44,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:31:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:31:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure ican3_set_buserror [2021-11-13 02:31:44,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ican3_set_buserror [2021-11-13 02:31:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-13 02:31:44,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-13 02:31:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 02:31:44,098 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 02:31:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure ican3_remove [2021-11-13 02:31:44,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ican3_remove [2021-11-13 02:31:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-13 02:31:44,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-13 02:31:44,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-13 02:31:44,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-13 02:31:44,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 02:31:44,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 02:31:44,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-13 02:31:44,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-13 02:31:44,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-13 02:31:44,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-13 02:31:44,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 02:31:44,100 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 02:31:44,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-13 02:31:44,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-13 02:31:44,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 02:31:44,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 02:31:44,101 INFO L130 BoogieDeclarations]: Found specification of procedure ican3_txok [2021-11-13 02:31:44,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ican3_txok [2021-11-13 02:31:44,102 INFO L130 BoogieDeclarations]: Found specification of procedure ican3_set_termination [2021-11-13 02:31:44,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ican3_set_termination [2021-11-13 02:31:44,102 INFO L130 BoogieDeclarations]: Found specification of procedure ican3_send_msg [2021-11-13 02:31:44,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ican3_send_msg [2021-11-13 02:31:44,103 INFO L130 BoogieDeclarations]: Found specification of procedure ican3_set_page [2021-11-13 02:31:44,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ican3_set_page [2021-11-13 02:31:44,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-13 02:31:44,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-13 02:31:44,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-13 02:31:44,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-13 02:31:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:31:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure ican3_send_inquiry [2021-11-13 02:31:44,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ican3_send_inquiry [2021-11-13 02:31:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 02:31:44,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 02:31:44,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:31:44,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 02:31:44,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 02:31:44,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:31:44,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:31:44,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 02:31:44,106 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-13 02:31:44,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-13 02:31:44,106 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-13 02:31:44,106 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-13 02:31:44,107 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 02:31:44,107 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 02:31:44,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-13 02:31:44,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-13 02:31:44,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 02:31:44,108 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2021-11-13 02:31:44,108 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2021-11-13 02:31:44,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:31:44,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:31:44,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 02:31:44,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 02:31:44,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 02:31:44,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 02:31:44,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 02:31:44,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 02:31:44,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 02:31:44,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 02:31:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-11-13 02:31:44,115 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-11-13 02:31:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 02:31:44,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 02:31:44,116 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-11-13 02:31:44,116 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-11-13 02:31:44,116 INFO L130 BoogieDeclarations]: Found specification of procedure ican3_stop [2021-11-13 02:31:44,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ican3_stop [2021-11-13 02:31:44,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 02:31:44,117 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 02:31:44,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-13 02:31:44,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-13 02:31:44,118 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 02:31:44,118 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 02:31:44,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_127 [2021-11-13 02:31:44,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_127 [2021-11-13 02:31:44,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-13 02:31:44,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-13 02:31:44,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-13 02:31:44,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-13 02:31:44,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:31:44,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-13 02:31:44,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-13 02:31:44,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:31:44,120 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-11-13 02:31:44,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-11-13 02:31:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 02:31:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 02:31:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 02:31:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 02:31:44,122 INFO L130 BoogieDeclarations]: Found specification of procedure ican3_probe [2021-11-13 02:31:44,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ican3_probe [2021-11-13 02:31:44,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:31:44,122 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-13 02:31:44,122 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-13 02:31:44,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_sched_completion__wait_without_init [2021-11-13 02:31:44,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_sched_completion__wait_without_init [2021-11-13 02:31:44,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-13 02:31:44,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-13 02:31:44,123 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 02:31:44,123 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 02:31:44,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_ican3_dev [2021-11-13 02:31:44,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_ican3_dev [2021-11-13 02:31:44,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 02:31:44,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 02:31:44,124 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2021-11-13 02:31:44,124 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2021-11-13 02:31:44,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-13 02:31:44,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-13 02:31:44,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-13 02:31:44,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-13 02:31:44,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-13 02:31:44,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-13 02:31:44,126 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-13 02:31:44,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-13 02:31:44,126 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 02:31:44,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 02:31:44,126 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 02:31:44,127 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 02:31:44,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-13 02:31:44,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-13 02:31:44,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-13 02:31:44,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-13 02:31:44,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 02:31:44,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 02:31:44,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 02:31:44,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 02:31:44,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 02:31:44,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 02:31:44,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-13 02:31:44,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-13 02:31:44,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 02:31:44,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 02:31:44,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-13 02:31:44,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-13 02:31:44,130 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2021-11-13 02:31:44,130 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2021-11-13 02:31:45,324 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 02:32:07,848 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:32:07,849 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 02:32:07,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:32:07 BoogieIcfgContainer [2021-11-13 02:32:07,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:32:07,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:32:07,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:32:07,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:32:07,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:31:35" (1/3) ... [2021-11-13 02:32:07,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e88e923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:32:07, skipping insertion in model container [2021-11-13 02:32:07,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:31:43" (2/3) ... [2021-11-13 02:32:07,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e88e923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:32:07, skipping insertion in model container [2021-11-13 02:32:07,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:32:07" (3/3) ... [2021-11-13 02:32:07,864 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--can--janz-ican3.ko.cil.i [2021-11-13 02:32:07,870 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:32:07,871 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-13 02:32:07,939 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:32:07,946 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 02:32:07,947 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-13 02:32:08,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 1246 states, 831 states have (on average 1.2551143200962696) internal successors, (1043), 878 states have internal predecessors, (1043), 308 states have call successors, (308), 78 states have call predecessors, (308), 77 states have return successors, (302), 302 states have call predecessors, (302), 302 states have call successors, (302) [2021-11-13 02:32:08,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-13 02:32:08,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:08,015 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:32:08,016 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:32:08,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:08,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1555758780, now seen corresponding path program 1 times [2021-11-13 02:32:08,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:32:08,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676852249] [2021-11-13 02:32:08,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:08,043 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:32:08,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:32:08,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:32:08,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:32:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:09,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:32:09,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:10,407 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:10,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:10,725 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:10,726 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:32:10,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676852249] [2021-11-13 02:32:10,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676852249] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:10,727 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:10,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:32:10,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954442112] [2021-11-13 02:32:10,729 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:10,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:32:10,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:32:10,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:32:10,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:32:10,776 INFO L87 Difference]: Start difference. First operand has 1246 states, 831 states have (on average 1.2551143200962696) internal successors, (1043), 878 states have internal predecessors, (1043), 308 states have call successors, (308), 78 states have call predecessors, (308), 77 states have return successors, (302), 302 states have call predecessors, (302), 302 states have call successors, (302) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-13 02:32:11,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:11,174 INFO L93 Difference]: Finished difference Result 3672 states and 5151 transitions. [2021-11-13 02:32:11,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:32:11,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 64 [2021-11-13 02:32:11,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:11,223 INFO L225 Difference]: With dead ends: 3672 [2021-11-13 02:32:11,224 INFO L226 Difference]: Without dead ends: 2423 [2021-11-13 02:32:11,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:32:11,249 INFO L933 BasicCegarLoop]: 2358 mSDtfsCounter, 1551 mSDsluCounter, 3974 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 6332 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.41ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.27ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:11,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1553 Valid, 6332 Invalid, 17 Unknown, 0 Unchecked, 42.41ms Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 57.27ms Time] [2021-11-13 02:32:11,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2021-11-13 02:32:11,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 2224. [2021-11-13 02:32:11,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2224 states, 1509 states have (on average 1.215374420145792) internal successors, (1834), 1568 states have internal predecessors, (1834), 554 states have call successors, (554), 134 states have call predecessors, (554), 132 states have return successors, (578), 546 states have call predecessors, (578), 552 states have call successors, (578) [2021-11-13 02:32:11,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2224 states to 2224 states and 2966 transitions. [2021-11-13 02:32:11,533 INFO L78 Accepts]: Start accepts. Automaton has 2224 states and 2966 transitions. Word has length 64 [2021-11-13 02:32:11,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:11,534 INFO L470 AbstractCegarLoop]: Abstraction has 2224 states and 2966 transitions. [2021-11-13 02:32:11,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-13 02:32:11,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2224 states and 2966 transitions. [2021-11-13 02:32:11,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-13 02:32:11,546 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:11,546 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:32:11,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:32:11,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:32:11,760 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:32:11,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:11,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1782979875, now seen corresponding path program 1 times [2021-11-13 02:32:11,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:32:11,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926434801] [2021-11-13 02:32:11,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:11,764 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:32:11,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:32:11,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:32:11,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:32:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:13,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:32:13,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:13,642 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:13,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:13,967 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:13,968 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:32:13,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926434801] [2021-11-13 02:32:13,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926434801] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:13,968 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:13,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:32:13,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659149769] [2021-11-13 02:32:13,969 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:13,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:32:13,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:32:13,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:32:13,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:32:13,971 INFO L87 Difference]: Start difference. First operand 2224 states and 2966 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2021-11-13 02:32:14,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:14,123 INFO L93 Difference]: Finished difference Result 2224 states and 2966 transitions. [2021-11-13 02:32:14,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:32:14,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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 70 [2021-11-13 02:32:14,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:14,145 INFO L225 Difference]: With dead ends: 2224 [2021-11-13 02:32:14,145 INFO L226 Difference]: Without dead ends: 2222 [2021-11-13 02:32:14,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:32:14,151 INFO L933 BasicCegarLoop]: 1594 mSDtfsCounter, 1541 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 4778 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.02ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.53ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:14,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1543 Valid, 4778 Invalid, 2 Unknown, 0 Unchecked, 16.02ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.53ms Time] [2021-11-13 02:32:14,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2021-11-13 02:32:14,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2222. [2021-11-13 02:32:14,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2222 states, 1508 states have (on average 1.2148541114058355) internal successors, (1832), 1566 states have internal predecessors, (1832), 554 states have call successors, (554), 134 states have call predecessors, (554), 132 states have return successors, (578), 546 states have call predecessors, (578), 552 states have call successors, (578) [2021-11-13 02:32:14,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2222 states to 2222 states and 2964 transitions. [2021-11-13 02:32:14,305 INFO L78 Accepts]: Start accepts. Automaton has 2222 states and 2964 transitions. Word has length 70 [2021-11-13 02:32:14,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:14,308 INFO L470 AbstractCegarLoop]: Abstraction has 2222 states and 2964 transitions. [2021-11-13 02:32:14,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2021-11-13 02:32:14,308 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states and 2964 transitions. [2021-11-13 02:32:14,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-13 02:32:14,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:14,312 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:32:14,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:32:14,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:32:14,536 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:32:14,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:14,537 INFO L85 PathProgramCache]: Analyzing trace with hash 2092463005, now seen corresponding path program 1 times [2021-11-13 02:32:14,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:32:14,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407155740] [2021-11-13 02:32:14,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:14,540 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:32:14,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:32:14,541 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:32:14,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:32:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:15,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:32:15,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:16,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:16,637 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:16,637 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:32:16,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407155740] [2021-11-13 02:32:16,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407155740] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:16,638 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:16,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:32:16,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714682201] [2021-11-13 02:32:16,638 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:16,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:32:16,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:32:16,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:32:16,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:32:16,639 INFO L87 Difference]: Start difference. First operand 2222 states and 2964 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) [2021-11-13 02:32:16,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:16,893 INFO L93 Difference]: Finished difference Result 2222 states and 2964 transitions. [2021-11-13 02:32:16,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:32:16,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 76 [2021-11-13 02:32:16,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:16,914 INFO L225 Difference]: With dead ends: 2222 [2021-11-13 02:32:16,915 INFO L226 Difference]: Without dead ends: 2220 [2021-11-13 02:32:16,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:32:16,918 INFO L933 BasicCegarLoop]: 1592 mSDtfsCounter, 1533 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 4772 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.77ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.19ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:16,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1535 Valid, 4772 Invalid, 2 Unknown, 0 Unchecked, 15.77ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 9.19ms Time] [2021-11-13 02:32:16,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2021-11-13 02:32:17,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 2220. [2021-11-13 02:32:17,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2220 states, 1507 states have (on average 1.2143331121433312) internal successors, (1830), 1564 states have internal predecessors, (1830), 554 states have call successors, (554), 134 states have call predecessors, (554), 132 states have return successors, (578), 546 states have call predecessors, (578), 552 states have call successors, (578) [2021-11-13 02:32:17,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 2962 transitions. [2021-11-13 02:32:17,099 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 2962 transitions. Word has length 76 [2021-11-13 02:32:17,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:17,100 INFO L470 AbstractCegarLoop]: Abstraction has 2220 states and 2962 transitions. [2021-11-13 02:32:17,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) [2021-11-13 02:32:17,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 2962 transitions. [2021-11-13 02:32:17,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-13 02:32:17,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:17,102 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:32:17,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:32:17,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:32:17,324 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:32:17,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:17,324 INFO L85 PathProgramCache]: Analyzing trace with hash 303371850, now seen corresponding path program 1 times [2021-11-13 02:32:17,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:32:17,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592850458] [2021-11-13 02:32:17,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:17,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:32:17,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:32:17,329 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:32:17,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:32:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:18,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:32:18,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:19,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:19,604 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:19,605 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:32:19,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592850458] [2021-11-13 02:32:19,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592850458] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:19,605 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:19,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:32:19,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706659914] [2021-11-13 02:32:19,605 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:19,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:32:19,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:32:19,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:32:19,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:32:19,607 INFO L87 Difference]: Start difference. First operand 2220 states and 2962 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2021-11-13 02:32:19,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:19,752 INFO L93 Difference]: Finished difference Result 2220 states and 2962 transitions. [2021-11-13 02:32:19,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:32:19,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 82 [2021-11-13 02:32:19,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:19,770 INFO L225 Difference]: With dead ends: 2220 [2021-11-13 02:32:19,771 INFO L226 Difference]: Without dead ends: 2218 [2021-11-13 02:32:19,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:32:19,774 INFO L933 BasicCegarLoop]: 1590 mSDtfsCounter, 1528 mSDsluCounter, 1588 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 3178 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.91ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.35ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:19,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1530 Valid, 3178 Invalid, 2 Unknown, 0 Unchecked, 10.91ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.35ms Time] [2021-11-13 02:32:19,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2021-11-13 02:32:19,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 2218. [2021-11-13 02:32:19,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2218 states, 1506 states have (on average 1.2138114209827358) internal successors, (1828), 1562 states have internal predecessors, (1828), 554 states have call successors, (554), 134 states have call predecessors, (554), 132 states have return successors, (578), 546 states have call predecessors, (578), 552 states have call successors, (578) [2021-11-13 02:32:19,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2218 states to 2218 states and 2960 transitions. [2021-11-13 02:32:19,985 INFO L78 Accepts]: Start accepts. Automaton has 2218 states and 2960 transitions. Word has length 82 [2021-11-13 02:32:19,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:19,986 INFO L470 AbstractCegarLoop]: Abstraction has 2218 states and 2960 transitions. [2021-11-13 02:32:19,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2021-11-13 02:32:19,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2218 states and 2960 transitions. [2021-11-13 02:32:19,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-13 02:32:19,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:19,989 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-11-13 02:32:20,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:32:20,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:32:20,209 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:32:20,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:20,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1042110956, now seen corresponding path program 1 times [2021-11-13 02:32:20,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:32:20,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541229911] [2021-11-13 02:32:20,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:20,212 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:32:20,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:32:20,213 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:32:20,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:32:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:21,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 02:32:21,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:22,241 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 52 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-13 02:32:22,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:23,030 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-13 02:32:23,031 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:32:23,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541229911] [2021-11-13 02:32:23,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541229911] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:32:23,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [216603953] [2021-11-13 02:32:23,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:23,031 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:32:23,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:32:23,035 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:32:23,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-13 02:32:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:24,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:32:24,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:24,572 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-13 02:32:24,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:24,926 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-13 02:32:24,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [216603953] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:24,927 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:32:24,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8] total 11 [2021-11-13 02:32:24,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213406217] [2021-11-13 02:32:24,928 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:24,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:32:24,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:32:24,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:32:24,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-13 02:32:24,931 INFO L87 Difference]: Start difference. First operand 2218 states and 2960 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 02:32:26,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:26,786 INFO L93 Difference]: Finished difference Result 4411 states and 5885 transitions. [2021-11-13 02:32:26,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:32:26,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 93 [2021-11-13 02:32:26,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:26,811 INFO L225 Difference]: With dead ends: 4411 [2021-11-13 02:32:26,812 INFO L226 Difference]: Without dead ends: 2212 [2021-11-13 02:32:26,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-13 02:32:26,828 INFO L933 BasicCegarLoop]: 1586 mSDtfsCounter, 2545 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1273.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2545 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.36ms SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1622.84ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:26,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2545 Valid, 1586 Invalid, 602 Unknown, 0 Unchecked, 16.36ms Time], IncrementalHoareTripleChecker [601 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1622.84ms Time] [2021-11-13 02:32:26,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2212 states. [2021-11-13 02:32:26,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2212 to 2212. [2021-11-13 02:32:26,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2212 states, 1501 states have (on average 1.211858760826116) internal successors, (1819), 1556 states have internal predecessors, (1819), 554 states have call successors, (554), 134 states have call predecessors, (554), 132 states have return successors, (578), 546 states have call predecessors, (578), 552 states have call successors, (578) [2021-11-13 02:32:27,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2212 states to 2212 states and 2951 transitions. [2021-11-13 02:32:27,018 INFO L78 Accepts]: Start accepts. Automaton has 2212 states and 2951 transitions. Word has length 93 [2021-11-13 02:32:27,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:27,019 INFO L470 AbstractCegarLoop]: Abstraction has 2212 states and 2951 transitions. [2021-11-13 02:32:27,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 02:32:27,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2212 states and 2951 transitions. [2021-11-13 02:32:27,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-13 02:32:27,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:27,022 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:32:27,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-13 02:32:27,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-11-13 02:32:27,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:32:27,449 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:32:27,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:27,450 INFO L85 PathProgramCache]: Analyzing trace with hash 507784020, now seen corresponding path program 1 times [2021-11-13 02:32:27,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:32:27,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763281840] [2021-11-13 02:32:27,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:27,452 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:32:27,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:32:27,454 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:32:27,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 02:32:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:28,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:32:28,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:29,433 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:29,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:29,722 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:29,722 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:32:29,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763281840] [2021-11-13 02:32:29,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763281840] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:29,723 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:29,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:32:29,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145219419] [2021-11-13 02:32:29,723 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:29,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:32:29,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:32:29,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:32:29,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:32:29,725 INFO L87 Difference]: Start difference. First operand 2212 states and 2951 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2021-11-13 02:32:29,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:29,898 INFO L93 Difference]: Finished difference Result 2212 states and 2951 transitions. [2021-11-13 02:32:29,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:32:29,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 88 [2021-11-13 02:32:29,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:29,916 INFO L225 Difference]: With dead ends: 2212 [2021-11-13 02:32:29,916 INFO L226 Difference]: Without dead ends: 2210 [2021-11-13 02:32:29,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:32:29,919 INFO L933 BasicCegarLoop]: 1583 mSDtfsCounter, 1512 mSDsluCounter, 3162 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 4745 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.75ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:29,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1514 Valid, 4745 Invalid, 2 Unknown, 0 Unchecked, 16.51ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.75ms Time] [2021-11-13 02:32:29,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2021-11-13 02:32:30,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 2210. [2021-11-13 02:32:30,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2210 states, 1500 states have (on average 1.2113333333333334) internal successors, (1817), 1554 states have internal predecessors, (1817), 554 states have call successors, (554), 134 states have call predecessors, (554), 132 states have return successors, (578), 546 states have call predecessors, (578), 552 states have call successors, (578) [2021-11-13 02:32:30,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2210 states to 2210 states and 2949 transitions. [2021-11-13 02:32:30,122 INFO L78 Accepts]: Start accepts. Automaton has 2210 states and 2949 transitions. Word has length 88 [2021-11-13 02:32:30,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:30,123 INFO L470 AbstractCegarLoop]: Abstraction has 2210 states and 2949 transitions. [2021-11-13 02:32:30,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2021-11-13 02:32:30,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2210 states and 2949 transitions. [2021-11-13 02:32:30,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-13 02:32:30,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:30,125 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-11-13 02:32:30,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 02:32:30,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:32:30,352 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:32:30,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:30,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1032284283, now seen corresponding path program 1 times [2021-11-13 02:32:30,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:32:30,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109625120] [2021-11-13 02:32:30,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:30,354 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:32:30,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:32:30,356 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:32:30,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 02:32:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:31,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 02:32:31,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:32,478 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 52 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-13 02:32:32,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:33,249 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-13 02:32:33,249 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:32:33,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109625120] [2021-11-13 02:32:33,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109625120] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:32:33,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1024542853] [2021-11-13 02:32:33,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:33,250 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:32:33,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:32:33,252 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:32:33,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-13 02:32:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:34,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:32:34,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:34,643 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-13 02:32:34,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:35,002 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-11-13 02:32:35,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1024542853] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:35,003 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:32:35,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8] total 11 [2021-11-13 02:32:35,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839618121] [2021-11-13 02:32:35,003 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:35,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:32:35,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:32:35,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:32:35,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-13 02:32:35,005 INFO L87 Difference]: Start difference. First operand 2210 states and 2949 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-13 02:32:35,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:35,395 INFO L93 Difference]: Finished difference Result 4395 states and 5863 transitions. [2021-11-13 02:32:35,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:32:35,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 99 [2021-11-13 02:32:35,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:35,417 INFO L225 Difference]: With dead ends: 4395 [2021-11-13 02:32:35,418 INFO L226 Difference]: Without dead ends: 2204 [2021-11-13 02:32:35,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-13 02:32:35,436 INFO L933 BasicCegarLoop]: 1579 mSDtfsCounter, 1565 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 129.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1565 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.96ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 162.71ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:35,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1565 Valid, 1579 Invalid, 4 Unknown, 0 Unchecked, 6.96ms Time], IncrementalHoareTripleChecker [3 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 162.71ms Time] [2021-11-13 02:32:35,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2021-11-13 02:32:35,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 2204. [2021-11-13 02:32:35,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 1495 states have (on average 1.2093645484949833) internal successors, (1808), 1548 states have internal predecessors, (1808), 554 states have call successors, (554), 134 states have call predecessors, (554), 132 states have return successors, (578), 546 states have call predecessors, (578), 552 states have call successors, (578) [2021-11-13 02:32:35,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 2940 transitions. [2021-11-13 02:32:35,649 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 2940 transitions. Word has length 99 [2021-11-13 02:32:35,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:35,649 INFO L470 AbstractCegarLoop]: Abstraction has 2204 states and 2940 transitions. [2021-11-13 02:32:35,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-13 02:32:35,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 2940 transitions. [2021-11-13 02:32:35,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-13 02:32:35,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:35,654 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:32:35,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-13 02:32:35,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 02:32:36,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:32:36,065 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:32:36,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:36,065 INFO L85 PathProgramCache]: Analyzing trace with hash -2100442475, now seen corresponding path program 1 times [2021-11-13 02:32:36,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:32:36,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268741281] [2021-11-13 02:32:36,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:36,067 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:32:36,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:32:36,068 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:32:36,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 02:32:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:37,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:32:37,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:37,994 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:37,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:38,347 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:38,347 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:32:38,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268741281] [2021-11-13 02:32:38,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268741281] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:38,348 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:38,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:32:38,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061901436] [2021-11-13 02:32:38,348 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:38,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:32:38,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:32:38,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:32:38,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:32:38,349 INFO L87 Difference]: Start difference. First operand 2204 states and 2940 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2021-11-13 02:32:38,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:38,570 INFO L93 Difference]: Finished difference Result 2204 states and 2940 transitions. [2021-11-13 02:32:38,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:32:38,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 94 [2021-11-13 02:32:38,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:38,594 INFO L225 Difference]: With dead ends: 2204 [2021-11-13 02:32:38,594 INFO L226 Difference]: Without dead ends: 2202 [2021-11-13 02:32:38,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:32:38,597 INFO L933 BasicCegarLoop]: 1576 mSDtfsCounter, 1502 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 3150 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.47ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.39ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:38,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1504 Valid, 3150 Invalid, 2 Unknown, 0 Unchecked, 14.47ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.39ms Time] [2021-11-13 02:32:38,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2021-11-13 02:32:38,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 2202. [2021-11-13 02:32:38,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 1494 states have (on average 1.2088353413654618) internal successors, (1806), 1546 states have internal predecessors, (1806), 554 states have call successors, (554), 134 states have call predecessors, (554), 132 states have return successors, (578), 546 states have call predecessors, (578), 552 states have call successors, (578) [2021-11-13 02:32:38,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 2938 transitions. [2021-11-13 02:32:38,862 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 2938 transitions. Word has length 94 [2021-11-13 02:32:38,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:38,863 INFO L470 AbstractCegarLoop]: Abstraction has 2202 states and 2938 transitions. [2021-11-13 02:32:38,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2021-11-13 02:32:38,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 2938 transitions. [2021-11-13 02:32:38,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-13 02:32:38,870 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:38,870 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:32:38,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 02:32:39,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:32:39,096 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:32:39,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:39,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1084037723, now seen corresponding path program 1 times [2021-11-13 02:32:39,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:32:39,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162191142] [2021-11-13 02:32:39,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:39,099 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:32:39,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:32:39,100 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:32:39,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 02:32:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:40,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:32:40,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:40,998 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:40,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:41,347 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:41,348 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:32:41,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162191142] [2021-11-13 02:32:41,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162191142] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:41,348 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:41,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:32:41,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250031433] [2021-11-13 02:32:41,348 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:41,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:32:41,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:32:41,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:32:41,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:32:41,350 INFO L87 Difference]: Start difference. First operand 2202 states and 2938 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2021-11-13 02:32:41,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:41,544 INFO L93 Difference]: Finished difference Result 2202 states and 2938 transitions. [2021-11-13 02:32:41,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:32:41,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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 100 [2021-11-13 02:32:41,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:41,564 INFO L225 Difference]: With dead ends: 2202 [2021-11-13 02:32:41,564 INFO L226 Difference]: Without dead ends: 2200 [2021-11-13 02:32:41,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:32:41,569 INFO L933 BasicCegarLoop]: 1574 mSDtfsCounter, 1494 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.29ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:41,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1496 Valid, 3146 Invalid, 2 Unknown, 0 Unchecked, 12.21ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.29ms Time] [2021-11-13 02:32:41,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2021-11-13 02:32:41,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 2200. [2021-11-13 02:32:41,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2200 states, 1493 states have (on average 1.2083054253181513) internal successors, (1804), 1544 states have internal predecessors, (1804), 554 states have call successors, (554), 134 states have call predecessors, (554), 132 states have return successors, (578), 546 states have call predecessors, (578), 552 states have call successors, (578) [2021-11-13 02:32:41,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 2936 transitions. [2021-11-13 02:32:41,862 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 2936 transitions. Word has length 100 [2021-11-13 02:32:41,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:41,863 INFO L470 AbstractCegarLoop]: Abstraction has 2200 states and 2936 transitions. [2021-11-13 02:32:41,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2021-11-13 02:32:41,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 2936 transitions. [2021-11-13 02:32:41,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-13 02:32:41,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:41,868 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:32:41,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 02:32:42,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:32:42,092 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:32:42,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:42,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1212094115, now seen corresponding path program 1 times [2021-11-13 02:32:42,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:32:42,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128472793] [2021-11-13 02:32:42,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:42,095 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:32:42,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:32:42,097 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:32:42,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 02:32:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:43,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:32:43,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:44,076 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:44,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:44,471 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:44,472 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:32:44,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128472793] [2021-11-13 02:32:44,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128472793] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:44,472 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:44,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:32:44,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005410528] [2021-11-13 02:32:44,473 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:44,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:32:44,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:32:44,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:32:44,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:32:44,475 INFO L87 Difference]: Start difference. First operand 2200 states and 2936 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2021-11-13 02:32:44,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:44,702 INFO L93 Difference]: Finished difference Result 2200 states and 2936 transitions. [2021-11-13 02:32:44,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:32:44,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 106 [2021-11-13 02:32:44,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:44,723 INFO L225 Difference]: With dead ends: 2200 [2021-11-13 02:32:44,724 INFO L226 Difference]: Without dead ends: 2198 [2021-11-13 02:32:44,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:32:44,726 INFO L933 BasicCegarLoop]: 1572 mSDtfsCounter, 1487 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 4704 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.73ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.07ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:44,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1489 Valid, 4704 Invalid, 2 Unknown, 0 Unchecked, 15.73ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.07ms Time] [2021-11-13 02:32:44,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2021-11-13 02:32:44,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 2198. [2021-11-13 02:32:44,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2198 states, 1492 states have (on average 1.207774798927614) internal successors, (1802), 1542 states have internal predecessors, (1802), 554 states have call successors, (554), 134 states have call predecessors, (554), 132 states have return successors, (578), 546 states have call predecessors, (578), 552 states have call successors, (578) [2021-11-13 02:32:44,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2198 states to 2198 states and 2934 transitions. [2021-11-13 02:32:44,995 INFO L78 Accepts]: Start accepts. Automaton has 2198 states and 2934 transitions. Word has length 106 [2021-11-13 02:32:44,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:44,996 INFO L470 AbstractCegarLoop]: Abstraction has 2198 states and 2934 transitions. [2021-11-13 02:32:44,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2021-11-13 02:32:44,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2198 states and 2934 transitions. [2021-11-13 02:32:44,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-13 02:32:44,999 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:44,999 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:32:45,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-13 02:32:45,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:32:45,216 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:32:45,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:45,217 INFO L85 PathProgramCache]: Analyzing trace with hash 886440934, now seen corresponding path program 1 times [2021-11-13 02:32:45,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:32:45,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031022140] [2021-11-13 02:32:45,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:45,219 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:32:45,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:32:45,220 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:32:45,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 02:32:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:46,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:32:46,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:47,198 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:47,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:47,594 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:47,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:32:47,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031022140] [2021-11-13 02:32:47,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1031022140] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:47,595 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:47,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:32:47,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003520380] [2021-11-13 02:32:47,595 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:47,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:32:47,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:32:47,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:32:47,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:32:47,597 INFO L87 Difference]: Start difference. First operand 2198 states and 2934 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2021-11-13 02:32:47,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:47,803 INFO L93 Difference]: Finished difference Result 2198 states and 2934 transitions. [2021-11-13 02:32:47,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:32:47,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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 108 [2021-11-13 02:32:47,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:47,820 INFO L225 Difference]: With dead ends: 2198 [2021-11-13 02:32:47,820 INFO L226 Difference]: Without dead ends: 2196 [2021-11-13 02:32:47,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:32:47,822 INFO L933 BasicCegarLoop]: 1570 mSDtfsCounter, 1482 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.88ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.58ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:47,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1484 Valid, 3138 Invalid, 2 Unknown, 0 Unchecked, 9.88ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.58ms Time] [2021-11-13 02:32:47,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2021-11-13 02:32:48,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 2196. [2021-11-13 02:32:48,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 1491 states have (on average 1.2072434607645874) internal successors, (1800), 1540 states have internal predecessors, (1800), 554 states have call successors, (554), 134 states have call predecessors, (554), 132 states have return successors, (578), 546 states have call predecessors, (578), 552 states have call successors, (578) [2021-11-13 02:32:48,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 2932 transitions. [2021-11-13 02:32:48,073 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 2932 transitions. Word has length 108 [2021-11-13 02:32:48,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:48,077 INFO L470 AbstractCegarLoop]: Abstraction has 2196 states and 2932 transitions. [2021-11-13 02:32:48,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2021-11-13 02:32:48,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 2932 transitions. [2021-11-13 02:32:48,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-13 02:32:48,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:48,080 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:32:48,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-13 02:32:48,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:32:48,304 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:32:48,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:48,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1290873989, now seen corresponding path program 1 times [2021-11-13 02:32:48,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:32:48,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037118703] [2021-11-13 02:32:48,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:48,358 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:32:48,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:32:48,359 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:32:48,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-13 02:32:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:49,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:32:49,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:50,397 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:50,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:50,801 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:32:50,801 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:32:50,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037118703] [2021-11-13 02:32:50,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2037118703] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:50,801 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:32:50,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:32:50,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846364151] [2021-11-13 02:32:50,802 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:50,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:32:50,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:32:50,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:32:50,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:32:50,804 INFO L87 Difference]: Start difference. First operand 2196 states and 2932 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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) [2021-11-13 02:32:51,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:51,061 INFO L93 Difference]: Finished difference Result 2196 states and 2932 transitions. [2021-11-13 02:32:51,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:32:51,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 114 [2021-11-13 02:32:51,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:51,105 INFO L225 Difference]: With dead ends: 2196 [2021-11-13 02:32:51,106 INFO L226 Difference]: Without dead ends: 2194 [2021-11-13 02:32:51,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:32:51,109 INFO L933 BasicCegarLoop]: 1568 mSDtfsCounter, 1474 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.86ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.20ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:51,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1476 Valid, 3134 Invalid, 2 Unknown, 0 Unchecked, 10.86ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.20ms Time] [2021-11-13 02:32:51,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2021-11-13 02:32:51,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2194. [2021-11-13 02:32:51,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 1490 states have (on average 1.2067114093959732) internal successors, (1798), 1538 states have internal predecessors, (1798), 554 states have call successors, (554), 134 states have call predecessors, (554), 132 states have return successors, (578), 546 states have call predecessors, (578), 552 states have call successors, (578) [2021-11-13 02:32:51,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 2930 transitions. [2021-11-13 02:32:51,356 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 2930 transitions. Word has length 114 [2021-11-13 02:32:51,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:51,357 INFO L470 AbstractCegarLoop]: Abstraction has 2194 states and 2930 transitions. [2021-11-13 02:32:51,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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) [2021-11-13 02:32:51,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 2930 transitions. [2021-11-13 02:32:51,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-13 02:32:51,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:51,361 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 5, 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] [2021-11-13 02:32:51,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-13 02:32:51,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:32:51,588 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:32:51,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:51,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1173172734, now seen corresponding path program 1 times [2021-11-13 02:32:51,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:32:51,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211493720] [2021-11-13 02:32:51,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:51,591 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:32:51,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:32:51,593 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:32:51,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-13 02:32:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:53,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-13 02:32:53,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:54,265 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 91 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-13 02:32:54,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:55,250 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 9 proven. 27 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-13 02:32:55,251 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:32:55,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211493720] [2021-11-13 02:32:55,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [211493720] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:32:55,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [443467697] [2021-11-13 02:32:55,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:55,252 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:32:55,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:32:55,252 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:32:55,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-13 02:32:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:32:56,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:32:56,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:32:56,768 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-13 02:32:56,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:32:57,312 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-13 02:32:57,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [443467697] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:32:57,312 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:32:57,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [17, 17] total 24 [2021-11-13 02:32:57,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998696422] [2021-11-13 02:32:57,313 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:32:57,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:32:57,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:32:57,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:32:57,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=499, Unknown=0, NotChecked=0, Total=552 [2021-11-13 02:32:57,315 INFO L87 Difference]: Start difference. First operand 2194 states and 2930 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-13 02:32:58,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:32:58,001 INFO L93 Difference]: Finished difference Result 4387 states and 6002 transitions. [2021-11-13 02:32:58,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:32:58,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2021-11-13 02:32:58,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:32:58,016 INFO L225 Difference]: With dead ends: 4387 [2021-11-13 02:32:58,017 INFO L226 Difference]: Without dead ends: 2208 [2021-11-13 02:32:58,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2021-11-13 02:32:58,039 INFO L933 BasicCegarLoop]: 1565 mSDtfsCounter, 7 mSDsluCounter, 4662 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 262.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6227 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.11ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 296.27ms IncrementalHoareTripleChecker+Time [2021-11-13 02:32:58,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 6227 Invalid, 91 Unknown, 0 Unchecked, 14.11ms Time], IncrementalHoareTripleChecker [34 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 296.27ms Time] [2021-11-13 02:32:58,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2021-11-13 02:32:58,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2208. [2021-11-13 02:32:58,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 1502 states have (on average 1.2077230359520639) internal successors, (1814), 1550 states have internal predecessors, (1814), 554 states have call successors, (554), 136 states have call predecessors, (554), 134 states have return successors, (578), 546 states have call predecessors, (578), 552 states have call successors, (578) [2021-11-13 02:32:58,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 2946 transitions. [2021-11-13 02:32:58,304 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 2946 transitions. Word has length 139 [2021-11-13 02:32:58,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:32:58,305 INFO L470 AbstractCegarLoop]: Abstraction has 2208 states and 2946 transitions. [2021-11-13 02:32:58,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-13 02:32:58,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 2946 transitions. [2021-11-13 02:32:58,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-13 02:32:58,307 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:32:58,308 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 5, 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] [2021-11-13 02:32:58,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-11-13 02:32:58,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-13 02:32:58,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:32:58,727 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:32:58,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:32:58,728 INFO L85 PathProgramCache]: Analyzing trace with hash 341705502, now seen corresponding path program 1 times [2021-11-13 02:32:58,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:32:58,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524912562] [2021-11-13 02:32:58,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:32:58,729 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:32:58,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:32:58,730 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:32:58,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-13 02:33:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:00,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 1120 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-13 02:33:00,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:01,205 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 91 proven. 3 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-13 02:33:01,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:02,165 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 9 proven. 27 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 02:33:02,166 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:33:02,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524912562] [2021-11-13 02:33:02,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524912562] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:33:02,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [966727496] [2021-11-13 02:33:02,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:33:02,166 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:33:02,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:33:02,169 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:33:02,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-13 02:33:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:04,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 1120 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:33:04,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:04,807 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-13 02:33:04,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:05,713 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-13 02:33:05,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [966727496] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:33:05,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109511516] [2021-11-13 02:33:05,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:33:05,714 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:33:05,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:33:05,719 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:33:05,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-13 02:33:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:06,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 1120 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-13 02:33:06,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:07,037 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 91 proven. 3 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-13 02:33:07,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:07,737 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 9 proven. 27 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 02:33:07,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109511516] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:33:07,737 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:33:07,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 6, 6, 17, 17] total 28 [2021-11-13 02:33:07,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565038330] [2021-11-13 02:33:07,738 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:33:07,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-13 02:33:07,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:33:07,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-13 02:33:07,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2021-11-13 02:33:07,740 INFO L87 Difference]: Start difference. First operand 2208 states and 2946 transitions. Second operand has 28 states, 27 states have (on average 4.296296296296297) internal successors, (116), 26 states have internal predecessors, (116), 7 states have call successors, (48), 2 states have call predecessors, (48), 7 states have return successors, (46), 8 states have call predecessors, (46), 7 states have call successors, (46) [2021-11-13 02:33:13,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:33:13,193 INFO L93 Difference]: Finished difference Result 4464 states and 6117 transitions. [2021-11-13 02:33:13,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-13 02:33:13,194 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 4.296296296296297) internal successors, (116), 26 states have internal predecessors, (116), 7 states have call successors, (48), 2 states have call predecessors, (48), 7 states have return successors, (46), 8 states have call predecessors, (46), 7 states have call successors, (46) Word has length 141 [2021-11-13 02:33:13,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:33:13,206 INFO L225 Difference]: With dead ends: 4464 [2021-11-13 02:33:13,206 INFO L226 Difference]: Without dead ends: 2258 [2021-11-13 02:33:13,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 859 GetRequests, 815 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=262, Invalid=1808, Unknown=0, NotChecked=0, Total=2070 [2021-11-13 02:33:13,225 INFO L933 BasicCegarLoop]: 1555 mSDtfsCounter, 105 mSDsluCounter, 29271 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2876.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 30826 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 59.28ms SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3227.06ms IncrementalHoareTripleChecker+Time [2021-11-13 02:33:13,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 30826 Invalid, 1344 Unknown, 0 Unchecked, 59.28ms Time], IncrementalHoareTripleChecker [306 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 3227.06ms Time] [2021-11-13 02:33:13,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2021-11-13 02:33:13,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2234. [2021-11-13 02:33:13,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2234 states, 1524 states have (on average 1.2034120734908136) internal successors, (1834), 1572 states have internal predecessors, (1834), 558 states have call successors, (558), 136 states have call predecessors, (558), 134 states have return successors, (582), 550 states have call predecessors, (582), 556 states have call successors, (582) [2021-11-13 02:33:13,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 2974 transitions. [2021-11-13 02:33:13,436 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 2974 transitions. Word has length 141 [2021-11-13 02:33:13,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:33:13,436 INFO L470 AbstractCegarLoop]: Abstraction has 2234 states and 2974 transitions. [2021-11-13 02:33:13,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.296296296296297) internal successors, (116), 26 states have internal predecessors, (116), 7 states have call successors, (48), 2 states have call predecessors, (48), 7 states have return successors, (46), 8 states have call predecessors, (46), 7 states have call successors, (46) [2021-11-13 02:33:13,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 2974 transitions. [2021-11-13 02:33:13,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-13 02:33:13,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:33:13,439 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:33:13,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-13 02:33:13,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-11-13 02:33:13,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-11-13 02:33:14,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:33:14,064 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:33:14,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:33:14,064 INFO L85 PathProgramCache]: Analyzing trace with hash 84405896, now seen corresponding path program 1 times [2021-11-13 02:33:14,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:33:14,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473797738] [2021-11-13 02:33:14,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:33:14,066 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:33:14,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:33:14,067 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:33:14,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-13 02:33:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:15,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:33:15,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:15,836 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:15,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:16,180 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:16,180 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:33:16,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [473797738] [2021-11-13 02:33:16,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [473797738] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:33:16,180 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:33:16,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:33:16,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134539030] [2021-11-13 02:33:16,181 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:33:16,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:33:16,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:33:16,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:33:16,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:33:16,182 INFO L87 Difference]: Start difference. First operand 2234 states and 2974 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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) [2021-11-13 02:33:16,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:33:16,428 INFO L93 Difference]: Finished difference Result 2234 states and 2974 transitions. [2021-11-13 02:33:16,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:33:16,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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 120 [2021-11-13 02:33:16,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:33:16,439 INFO L225 Difference]: With dead ends: 2234 [2021-11-13 02:33:16,439 INFO L226 Difference]: Without dead ends: 2232 [2021-11-13 02:33:16,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:33:16,443 INFO L933 BasicCegarLoop]: 1566 mSDtfsCounter, 1466 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.54ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.34ms IncrementalHoareTripleChecker+Time [2021-11-13 02:33:16,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1468 Valid, 3130 Invalid, 2 Unknown, 0 Unchecked, 8.54ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.34ms Time] [2021-11-13 02:33:16,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2021-11-13 02:33:16,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 2232. [2021-11-13 02:33:16,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2232 states, 1523 states have (on average 1.2028890347997374) internal successors, (1832), 1570 states have internal predecessors, (1832), 558 states have call successors, (558), 136 states have call predecessors, (558), 134 states have return successors, (582), 550 states have call predecessors, (582), 556 states have call successors, (582) [2021-11-13 02:33:16,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 2972 transitions. [2021-11-13 02:33:16,661 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 2972 transitions. Word has length 120 [2021-11-13 02:33:16,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:33:16,661 INFO L470 AbstractCegarLoop]: Abstraction has 2232 states and 2972 transitions. [2021-11-13 02:33:16,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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) [2021-11-13 02:33:16,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 2972 transitions. [2021-11-13 02:33:16,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-13 02:33:16,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:33:16,664 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:33:16,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-13 02:33:16,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:33:16,887 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:33:16,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:33:16,888 INFO L85 PathProgramCache]: Analyzing trace with hash 74003988, now seen corresponding path program 1 times [2021-11-13 02:33:16,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:33:16,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210379734] [2021-11-13 02:33:16,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:33:16,889 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:33:16,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:33:16,890 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:33:16,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-13 02:33:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:18,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:33:18,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:18,677 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:18,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:19,019 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:19,019 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:33:19,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210379734] [2021-11-13 02:33:19,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210379734] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:33:19,019 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:33:19,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:33:19,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930871311] [2021-11-13 02:33:19,020 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:33:19,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:33:19,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:33:19,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:33:19,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:33:19,021 INFO L87 Difference]: Start difference. First operand 2232 states and 2972 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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) [2021-11-13 02:33:19,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:33:19,260 INFO L93 Difference]: Finished difference Result 2232 states and 2972 transitions. [2021-11-13 02:33:19,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:33:19,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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 126 [2021-11-13 02:33:19,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:33:19,270 INFO L225 Difference]: With dead ends: 2232 [2021-11-13 02:33:19,271 INFO L226 Difference]: Without dead ends: 2230 [2021-11-13 02:33:19,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:33:19,272 INFO L933 BasicCegarLoop]: 1564 mSDtfsCounter, 1458 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.33ms IncrementalHoareTripleChecker+Time [2021-11-13 02:33:19,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1460 Valid, 3126 Invalid, 2 Unknown, 0 Unchecked, 7.13ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.33ms Time] [2021-11-13 02:33:19,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2021-11-13 02:33:19,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2230. [2021-11-13 02:33:19,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2230 states, 1522 states have (on average 1.202365308804205) internal successors, (1830), 1568 states have internal predecessors, (1830), 558 states have call successors, (558), 136 states have call predecessors, (558), 134 states have return successors, (582), 550 states have call predecessors, (582), 556 states have call successors, (582) [2021-11-13 02:33:19,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 2970 transitions. [2021-11-13 02:33:19,504 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 2970 transitions. Word has length 126 [2021-11-13 02:33:19,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:33:19,505 INFO L470 AbstractCegarLoop]: Abstraction has 2230 states and 2970 transitions. [2021-11-13 02:33:19,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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) [2021-11-13 02:33:19,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 2970 transitions. [2021-11-13 02:33:19,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-13 02:33:19,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:33:19,509 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:33:19,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-13 02:33:19,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:33:19,725 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:33:19,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:33:19,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1330347690, now seen corresponding path program 1 times [2021-11-13 02:33:19,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:33:19,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612246656] [2021-11-13 02:33:19,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:33:19,728 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:33:19,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:33:19,729 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:33:19,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-13 02:33:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:21,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:33:21,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:21,787 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:21,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:22,239 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:33:22,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612246656] [2021-11-13 02:33:22,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612246656] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:33:22,240 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:33:22,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:33:22,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271845725] [2021-11-13 02:33:22,240 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:33:22,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:33:22,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:33:22,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:33:22,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:33:22,241 INFO L87 Difference]: Start difference. First operand 2230 states and 2970 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2021-11-13 02:33:22,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:33:22,453 INFO L93 Difference]: Finished difference Result 2230 states and 2970 transitions. [2021-11-13 02:33:22,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:33:22,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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 132 [2021-11-13 02:33:22,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:33:22,464 INFO L225 Difference]: With dead ends: 2230 [2021-11-13 02:33:22,464 INFO L226 Difference]: Without dead ends: 2228 [2021-11-13 02:33:22,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:33:22,467 INFO L933 BasicCegarLoop]: 1562 mSDtfsCounter, 1447 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 4682 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.37ms IncrementalHoareTripleChecker+Time [2021-11-13 02:33:22,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 4682 Invalid, 2 Unknown, 0 Unchecked, 7.58ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.37ms Time] [2021-11-13 02:33:22,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2021-11-13 02:33:22,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2228. [2021-11-13 02:33:22,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 1521 states have (on average 1.2018408941485865) internal successors, (1828), 1566 states have internal predecessors, (1828), 558 states have call successors, (558), 136 states have call predecessors, (558), 134 states have return successors, (582), 550 states have call predecessors, (582), 556 states have call successors, (582) [2021-11-13 02:33:22,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2968 transitions. [2021-11-13 02:33:22,744 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2968 transitions. Word has length 132 [2021-11-13 02:33:22,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:33:22,745 INFO L470 AbstractCegarLoop]: Abstraction has 2228 states and 2968 transitions. [2021-11-13 02:33:22,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2021-11-13 02:33:22,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2968 transitions. [2021-11-13 02:33:22,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-13 02:33:22,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:33:22,749 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:33:22,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-13 02:33:22,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:33:22,972 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:33:22,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:33:22,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1006277965, now seen corresponding path program 1 times [2021-11-13 02:33:22,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:33:22,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064326245] [2021-11-13 02:33:22,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:33:22,975 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:33:22,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:33:22,976 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:33:22,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-13 02:33:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:24,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:33:24,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:25,072 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:25,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:25,537 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:25,537 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:33:25,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064326245] [2021-11-13 02:33:25,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064326245] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:33:25,537 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:33:25,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:33:25,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153252339] [2021-11-13 02:33:25,538 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:33:25,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:33:25,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:33:25,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:33:25,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:33:25,540 INFO L87 Difference]: Start difference. First operand 2228 states and 2968 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 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) [2021-11-13 02:33:25,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:33:25,736 INFO L93 Difference]: Finished difference Result 2228 states and 2968 transitions. [2021-11-13 02:33:25,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:33:25,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 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 138 [2021-11-13 02:33:25,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:33:25,745 INFO L225 Difference]: With dead ends: 2228 [2021-11-13 02:33:25,745 INFO L226 Difference]: Without dead ends: 2226 [2021-11-13 02:33:25,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:33:25,747 INFO L933 BasicCegarLoop]: 1560 mSDtfsCounter, 1442 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1444 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.95ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.22ms IncrementalHoareTripleChecker+Time [2021-11-13 02:33:25,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1444 Valid, 3118 Invalid, 2 Unknown, 0 Unchecked, 5.95ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.22ms Time] [2021-11-13 02:33:25,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2021-11-13 02:33:25,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 2226. [2021-11-13 02:33:25,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2226 states, 1520 states have (on average 1.2013157894736841) internal successors, (1826), 1564 states have internal predecessors, (1826), 558 states have call successors, (558), 136 states have call predecessors, (558), 134 states have return successors, (582), 550 states have call predecessors, (582), 556 states have call successors, (582) [2021-11-13 02:33:25,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 2966 transitions. [2021-11-13 02:33:25,981 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 2966 transitions. Word has length 138 [2021-11-13 02:33:25,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:33:25,982 INFO L470 AbstractCegarLoop]: Abstraction has 2226 states and 2966 transitions. [2021-11-13 02:33:25,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 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) [2021-11-13 02:33:25,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 2966 transitions. [2021-11-13 02:33:25,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-13 02:33:25,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:33:25,986 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:33:26,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-11-13 02:33:26,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:33:26,212 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:33:26,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:33:26,212 INFO L85 PathProgramCache]: Analyzing trace with hash -758199184, now seen corresponding path program 1 times [2021-11-13 02:33:26,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:33:26,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364112081] [2021-11-13 02:33:26,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:33:26,214 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:33:26,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:33:26,215 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:33:26,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-13 02:33:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:27,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:33:27,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:28,499 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:28,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:29,396 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:29,396 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:33:29,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364112081] [2021-11-13 02:33:29,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364112081] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:33:29,397 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:33:29,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-13 02:33:29,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487050694] [2021-11-13 02:33:29,397 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:33:29,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:33:29,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:33:29,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:33:29,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:33:29,399 INFO L87 Difference]: Start difference. First operand 2226 states and 2966 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-13 02:33:30,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:33:30,712 INFO L93 Difference]: Finished difference Result 2226 states and 2966 transitions. [2021-11-13 02:33:30,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:33:30,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 144 [2021-11-13 02:33:30,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:33:30,725 INFO L225 Difference]: With dead ends: 2226 [2021-11-13 02:33:30,725 INFO L226 Difference]: Without dead ends: 2224 [2021-11-13 02:33:30,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:33:30,729 INFO L933 BasicCegarLoop]: 1558 mSDtfsCounter, 2373 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 832.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2375 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.40ms SdHoareTripleChecker+Time, 580 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1037.33ms IncrementalHoareTripleChecker+Time [2021-11-13 02:33:30,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2375 Valid, 3114 Invalid, 582 Unknown, 0 Unchecked, 12.40ms Time], IncrementalHoareTripleChecker [580 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1037.33ms Time] [2021-11-13 02:33:30,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2021-11-13 02:33:31,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2224. [2021-11-13 02:33:31,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2224 states, 1519 states have (on average 1.2007899934167214) internal successors, (1824), 1562 states have internal predecessors, (1824), 558 states have call successors, (558), 136 states have call predecessors, (558), 134 states have return successors, (582), 550 states have call predecessors, (582), 556 states have call successors, (582) [2021-11-13 02:33:31,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2224 states to 2224 states and 2964 transitions. [2021-11-13 02:33:31,060 INFO L78 Accepts]: Start accepts. Automaton has 2224 states and 2964 transitions. Word has length 144 [2021-11-13 02:33:31,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:33:31,061 INFO L470 AbstractCegarLoop]: Abstraction has 2224 states and 2964 transitions. [2021-11-13 02:33:31,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-13 02:33:31,062 INFO L276 IsEmpty]: Start isEmpty. Operand 2224 states and 2964 transitions. [2021-11-13 02:33:31,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-13 02:33:31,065 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:33:31,066 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:33:31,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-13 02:33:31,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:33:31,280 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:33:31,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:33:31,280 INFO L85 PathProgramCache]: Analyzing trace with hash -831981095, now seen corresponding path program 1 times [2021-11-13 02:33:31,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:33:31,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791613702] [2021-11-13 02:33:31,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:33:31,283 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:33:31,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:33:31,284 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:33:31,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-13 02:33:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:32,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:33:32,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:33,373 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:33,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:33,749 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:33,749 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:33:33,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791613702] [2021-11-13 02:33:33,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791613702] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:33:33,749 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:33:33,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:33:33,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917110070] [2021-11-13 02:33:33,750 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:33:33,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:33:33,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:33:33,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:33:33,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:33:33,751 INFO L87 Difference]: Start difference. First operand 2224 states and 2964 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-13 02:33:33,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:33:33,937 INFO L93 Difference]: Finished difference Result 2224 states and 2964 transitions. [2021-11-13 02:33:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:33:33,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 150 [2021-11-13 02:33:33,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:33:33,946 INFO L225 Difference]: With dead ends: 2224 [2021-11-13 02:33:33,946 INFO L226 Difference]: Without dead ends: 2222 [2021-11-13 02:33:33,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:33:33,948 INFO L933 BasicCegarLoop]: 1556 mSDtfsCounter, 1426 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 3110 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.64ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.91ms IncrementalHoareTripleChecker+Time [2021-11-13 02:33:33,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1428 Valid, 3110 Invalid, 2 Unknown, 0 Unchecked, 4.64ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 3.91ms Time] [2021-11-13 02:33:33,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2021-11-13 02:33:34,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2222. [2021-11-13 02:33:34,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2222 states, 1518 states have (on average 1.2002635046113308) internal successors, (1822), 1560 states have internal predecessors, (1822), 558 states have call successors, (558), 136 states have call predecessors, (558), 134 states have return successors, (582), 550 states have call predecessors, (582), 556 states have call successors, (582) [2021-11-13 02:33:34,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2222 states to 2222 states and 2962 transitions. [2021-11-13 02:33:34,167 INFO L78 Accepts]: Start accepts. Automaton has 2222 states and 2962 transitions. Word has length 150 [2021-11-13 02:33:34,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:33:34,168 INFO L470 AbstractCegarLoop]: Abstraction has 2222 states and 2962 transitions. [2021-11-13 02:33:34,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-13 02:33:34,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states and 2962 transitions. [2021-11-13 02:33:34,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-13 02:33:34,171 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:33:34,172 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:33:34,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-13 02:33:34,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:33:34,396 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:33:34,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:33:34,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1101381957, now seen corresponding path program 1 times [2021-11-13 02:33:34,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:33:34,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730537348] [2021-11-13 02:33:34,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:33:34,399 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:33:34,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:33:34,401 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:33:34,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-13 02:33:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:35,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:33:35,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:36,511 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:36,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:37,004 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:37,005 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:33:37,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730537348] [2021-11-13 02:33:37,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730537348] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:33:37,005 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:33:37,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:33:37,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141259611] [2021-11-13 02:33:37,006 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:33:37,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:33:37,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:33:37,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:33:37,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:33:37,008 INFO L87 Difference]: Start difference. First operand 2222 states and 2962 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 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) [2021-11-13 02:33:37,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:33:37,195 INFO L93 Difference]: Finished difference Result 2222 states and 2962 transitions. [2021-11-13 02:33:37,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:33:37,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 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 156 [2021-11-13 02:33:37,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:33:37,205 INFO L225 Difference]: With dead ends: 2222 [2021-11-13 02:33:37,205 INFO L226 Difference]: Without dead ends: 2220 [2021-11-13 02:33:37,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:33:37,208 INFO L933 BasicCegarLoop]: 1554 mSDtfsCounter, 1415 mSDsluCounter, 3104 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 4658 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.06ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.02ms IncrementalHoareTripleChecker+Time [2021-11-13 02:33:37,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1417 Valid, 4658 Invalid, 2 Unknown, 0 Unchecked, 6.06ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.02ms Time] [2021-11-13 02:33:37,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2021-11-13 02:33:37,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 2220. [2021-11-13 02:33:37,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2220 states, 1517 states have (on average 1.1997363216875412) internal successors, (1820), 1558 states have internal predecessors, (1820), 558 states have call successors, (558), 136 states have call predecessors, (558), 134 states have return successors, (582), 550 states have call predecessors, (582), 556 states have call successors, (582) [2021-11-13 02:33:37,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 2960 transitions. [2021-11-13 02:33:37,513 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 2960 transitions. Word has length 156 [2021-11-13 02:33:37,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:33:37,514 INFO L470 AbstractCegarLoop]: Abstraction has 2220 states and 2960 transitions. [2021-11-13 02:33:37,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 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) [2021-11-13 02:33:37,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 2960 transitions. [2021-11-13 02:33:37,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-13 02:33:37,518 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:33:37,519 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:33:37,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-13 02:33:37,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:33:37,745 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:33:37,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:33:37,746 INFO L85 PathProgramCache]: Analyzing trace with hash 93308960, now seen corresponding path program 1 times [2021-11-13 02:33:37,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:33:37,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732142531] [2021-11-13 02:33:37,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:33:37,748 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:33:37,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:33:37,750 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:33:37,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-13 02:33:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:39,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:33:39,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:40,154 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:40,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:40,662 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:33:40,662 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:33:40,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732142531] [2021-11-13 02:33:40,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732142531] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:33:40,663 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:33:40,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:33:40,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476964978] [2021-11-13 02:33:40,663 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:33:40,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:33:40,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:33:40,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:33:40,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:33:40,665 INFO L87 Difference]: Start difference. First operand 2220 states and 2960 transitions. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 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) [2021-11-13 02:33:40,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:33:40,870 INFO L93 Difference]: Finished difference Result 2220 states and 2960 transitions. [2021-11-13 02:33:40,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:33:40,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 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 162 [2021-11-13 02:33:40,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:33:40,882 INFO L225 Difference]: With dead ends: 2220 [2021-11-13 02:33:40,883 INFO L226 Difference]: Without dead ends: 2218 [2021-11-13 02:33:40,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:33:40,885 INFO L933 BasicCegarLoop]: 1552 mSDtfsCounter, 1407 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 4652 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.75ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.73ms IncrementalHoareTripleChecker+Time [2021-11-13 02:33:40,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1409 Valid, 4652 Invalid, 2 Unknown, 0 Unchecked, 6.75ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.73ms Time] [2021-11-13 02:33:40,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2021-11-13 02:33:41,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 2218. [2021-11-13 02:33:41,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2218 states, 1516 states have (on average 1.1992084432717678) internal successors, (1818), 1556 states have internal predecessors, (1818), 558 states have call successors, (558), 136 states have call predecessors, (558), 134 states have return successors, (582), 550 states have call predecessors, (582), 556 states have call successors, (582) [2021-11-13 02:33:41,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2218 states to 2218 states and 2958 transitions. [2021-11-13 02:33:41,246 INFO L78 Accepts]: Start accepts. Automaton has 2218 states and 2958 transitions. Word has length 162 [2021-11-13 02:33:41,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:33:41,247 INFO L470 AbstractCegarLoop]: Abstraction has 2218 states and 2958 transitions. [2021-11-13 02:33:41,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 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) [2021-11-13 02:33:41,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2218 states and 2958 transitions. [2021-11-13 02:33:41,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-13 02:33:41,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:33:41,253 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:33:41,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-13 02:33:41,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:33:41,476 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:33:41,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:33:41,476 INFO L85 PathProgramCache]: Analyzing trace with hash -799307500, now seen corresponding path program 1 times [2021-11-13 02:33:41,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:33:41,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264602336] [2021-11-13 02:33:41,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:33:41,479 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:33:41,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:33:41,481 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:33:41,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-13 02:33:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:43,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 02:33:43,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:44,316 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 182 proven. 3 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2021-11-13 02:33:44,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:45,289 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-11-13 02:33:45,289 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:33:45,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264602336] [2021-11-13 02:33:45,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264602336] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:33:45,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [493253952] [2021-11-13 02:33:45,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:33:45,290 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:33:45,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:33:45,290 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:33:45,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2021-11-13 02:33:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:47,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-13 02:33:47,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:48,889 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-13 02:33:48,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2021-11-13 02:33:49,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [493253952] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:33:49,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-13 02:33:49,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 6] total 13 [2021-11-13 02:33:49,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695283663] [2021-11-13 02:33:49,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:33:49,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:33:49,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:33:49,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:33:49,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-13 02:33:49,611 INFO L87 Difference]: Start difference. First operand 2218 states and 2958 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-13 02:33:50,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:33:50,033 INFO L93 Difference]: Finished difference Result 4427 states and 5915 transitions. [2021-11-13 02:33:50,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:33:50,034 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 200 [2021-11-13 02:33:50,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:33:50,046 INFO L225 Difference]: With dead ends: 4427 [2021-11-13 02:33:50,046 INFO L226 Difference]: Without dead ends: 2240 [2021-11-13 02:33:50,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 785 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-13 02:33:50,065 INFO L933 BasicCegarLoop]: 1610 mSDtfsCounter, 225 mSDsluCounter, 6107 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 7717 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.88ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.95ms IncrementalHoareTripleChecker+Time [2021-11-13 02:33:50,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 7717 Invalid, 12 Unknown, 0 Unchecked, 13.88ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 50.95ms Time] [2021-11-13 02:33:50,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2021-11-13 02:33:50,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2218. [2021-11-13 02:33:50,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2218 states, 1516 states have (on average 1.1985488126649078) internal successors, (1817), 1555 states have internal predecessors, (1817), 558 states have call successors, (558), 136 states have call predecessors, (558), 134 states have return successors, (582), 550 states have call predecessors, (582), 556 states have call successors, (582) [2021-11-13 02:33:50,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2218 states to 2218 states and 2957 transitions. [2021-11-13 02:33:50,411 INFO L78 Accepts]: Start accepts. Automaton has 2218 states and 2957 transitions. Word has length 200 [2021-11-13 02:33:50,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:33:50,412 INFO L470 AbstractCegarLoop]: Abstraction has 2218 states and 2957 transitions. [2021-11-13 02:33:50,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-13 02:33:50,412 INFO L276 IsEmpty]: Start isEmpty. Operand 2218 states and 2957 transitions. [2021-11-13 02:33:50,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-13 02:33:50,417 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:33:50,418 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-13 02:33:50,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-13 02:33:50,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2021-11-13 02:33:50,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:33:50,840 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:33:50,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:33:50,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1778006705, now seen corresponding path program 1 times [2021-11-13 02:33:50,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:33:50,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435469480] [2021-11-13 02:33:50,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:33:50,843 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:33:50,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:33:50,845 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:33:50,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-13 02:33:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:52,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:33:52,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:53,202 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-11-13 02:33:53,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:54,354 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-11-13 02:33:54,354 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:33:54,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435469480] [2021-11-13 02:33:54,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435469480] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:33:54,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1527933543] [2021-11-13 02:33:54,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:33:54,355 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:33:54,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:33:54,379 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:33:54,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2021-11-13 02:33:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:56,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:33:56,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:33:57,161 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-11-13 02:33:57,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:33:57,793 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-11-13 02:33:57,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1527933543] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:33:57,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628288355] [2021-11-13 02:33:57,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:33:57,795 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:33:57,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:33:57,799 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:33:57,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-13 02:33:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:33:58,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 02:33:58,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:00,237 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-11-13 02:34:00,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:01,045 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-11-13 02:34:01,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628288355] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:34:01,046 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-13 02:34:01,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [10, 10, 10, 10] total 23 [2021-11-13 02:34:01,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747834392] [2021-11-13 02:34:01,047 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:34:01,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:34:01,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:34:01,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:34:01,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2021-11-13 02:34:01,049 INFO L87 Difference]: Start difference. First operand 2218 states and 2957 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (53), 4 states have call predecessors, (53), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-13 02:34:01,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:34:01,397 INFO L93 Difference]: Finished difference Result 2342 states and 3083 transitions. [2021-11-13 02:34:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:34:01,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (53), 4 states have call predecessors, (53), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 204 [2021-11-13 02:34:01,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:34:01,406 INFO L225 Difference]: With dead ends: 2342 [2021-11-13 02:34:01,407 INFO L226 Difference]: Without dead ends: 2340 [2021-11-13 02:34:01,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1220 GetRequests, 1197 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2021-11-13 02:34:01,410 INFO L933 BasicCegarLoop]: 1568 mSDtfsCounter, 1142 mSDsluCounter, 3502 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 5070 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.07ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.00ms IncrementalHoareTripleChecker+Time [2021-11-13 02:34:01,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 5070 Invalid, 7 Unknown, 0 Unchecked, 8.07ms Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 15.00ms Time] [2021-11-13 02:34:01,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states. [2021-11-13 02:34:01,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 2340. [2021-11-13 02:34:01,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2340 states, 1595 states have (on average 1.1912225705329154) internal successors, (1900), 1635 states have internal predecessors, (1900), 578 states have call successors, (578), 160 states have call predecessors, (578), 158 states have return successors, (602), 570 states have call predecessors, (602), 576 states have call successors, (602) [2021-11-13 02:34:01,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2340 states to 2340 states and 3080 transitions. [2021-11-13 02:34:01,822 INFO L78 Accepts]: Start accepts. Automaton has 2340 states and 3080 transitions. Word has length 204 [2021-11-13 02:34:01,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:34:01,823 INFO L470 AbstractCegarLoop]: Abstraction has 2340 states and 3080 transitions. [2021-11-13 02:34:01,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (53), 4 states have call predecessors, (53), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-13 02:34:01,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2340 states and 3080 transitions. [2021-11-13 02:34:01,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-13 02:34:01,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:34:01,828 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:34:01,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2021-11-13 02:34:02,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-11-13 02:34:02,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2021-11-13 02:34:02,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:34:02,448 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:34:02,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:34:02,449 INFO L85 PathProgramCache]: Analyzing trace with hash 799592396, now seen corresponding path program 1 times [2021-11-13 02:34:02,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:34:02,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075986531] [2021-11-13 02:34:02,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:34:02,450 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:34:02,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:34:02,452 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:34:02,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-13 02:34:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:34:03,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:34:03,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:04,700 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:34:04,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:05,206 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:34:05,206 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:34:05,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075986531] [2021-11-13 02:34:05,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075986531] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:34:05,207 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:34:05,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:34:05,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62773106] [2021-11-13 02:34:05,208 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:34:05,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:34:05,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:34:05,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:34:05,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:34:05,209 INFO L87 Difference]: Start difference. First operand 2340 states and 3080 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 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) [2021-11-13 02:34:05,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:34:05,486 INFO L93 Difference]: Finished difference Result 2340 states and 3080 transitions. [2021-11-13 02:34:05,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:34:05,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 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 168 [2021-11-13 02:34:05,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:34:05,494 INFO L225 Difference]: With dead ends: 2340 [2021-11-13 02:34:05,494 INFO L226 Difference]: Without dead ends: 2338 [2021-11-13 02:34:05,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:34:05,497 INFO L933 BasicCegarLoop]: 1547 mSDtfsCounter, 1396 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1398 SdHoareTripleChecker+Valid, 4637 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.36ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.72ms IncrementalHoareTripleChecker+Time [2021-11-13 02:34:05,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1398 Valid, 4637 Invalid, 2 Unknown, 0 Unchecked, 8.36ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.72ms Time] [2021-11-13 02:34:05,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states. [2021-11-13 02:34:05,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 2338. [2021-11-13 02:34:05,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2338 states, 1594 states have (on average 1.190715181932246) internal successors, (1898), 1633 states have internal predecessors, (1898), 578 states have call successors, (578), 160 states have call predecessors, (578), 158 states have return successors, (602), 570 states have call predecessors, (602), 576 states have call successors, (602) [2021-11-13 02:34:05,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2338 states to 2338 states and 3078 transitions. [2021-11-13 02:34:05,880 INFO L78 Accepts]: Start accepts. Automaton has 2338 states and 3078 transitions. Word has length 168 [2021-11-13 02:34:05,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:34:05,880 INFO L470 AbstractCegarLoop]: Abstraction has 2338 states and 3078 transitions. [2021-11-13 02:34:05,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 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) [2021-11-13 02:34:05,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2338 states and 3078 transitions. [2021-11-13 02:34:05,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-13 02:34:05,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:34:05,887 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:34:05,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-13 02:34:06,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:34:06,112 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:34:06,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:34:06,112 INFO L85 PathProgramCache]: Analyzing trace with hash -966495014, now seen corresponding path program 1 times [2021-11-13 02:34:06,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:34:06,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841694321] [2021-11-13 02:34:06,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:34:06,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:34:06,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:34:06,116 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:34:06,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-13 02:34:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:34:07,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:34:07,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:08,463 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:34:08,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:08,975 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:34:08,976 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:34:08,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841694321] [2021-11-13 02:34:08,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841694321] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:34:08,976 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:34:08,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:34:08,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999356641] [2021-11-13 02:34:08,976 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:34:08,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:34:08,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:34:08,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:34:08,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:34:08,979 INFO L87 Difference]: Start difference. First operand 2338 states and 3078 transitions. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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) [2021-11-13 02:34:09,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:34:09,244 INFO L93 Difference]: Finished difference Result 2338 states and 3078 transitions. [2021-11-13 02:34:09,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:34:09,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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 174 [2021-11-13 02:34:09,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:34:09,253 INFO L225 Difference]: With dead ends: 2338 [2021-11-13 02:34:09,254 INFO L226 Difference]: Without dead ends: 2336 [2021-11-13 02:34:09,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:34:09,256 INFO L933 BasicCegarLoop]: 1545 mSDtfsCounter, 1388 mSDsluCounter, 3086 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 4631 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.25ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.88ms IncrementalHoareTripleChecker+Time [2021-11-13 02:34:09,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1390 Valid, 4631 Invalid, 2 Unknown, 0 Unchecked, 8.25ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.88ms Time] [2021-11-13 02:34:09,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2021-11-13 02:34:09,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2021-11-13 02:34:09,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 1593 states have (on average 1.1902071563088512) internal successors, (1896), 1631 states have internal predecessors, (1896), 578 states have call successors, (578), 160 states have call predecessors, (578), 158 states have return successors, (602), 570 states have call predecessors, (602), 576 states have call successors, (602) [2021-11-13 02:34:09,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3076 transitions. [2021-11-13 02:34:09,713 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3076 transitions. Word has length 174 [2021-11-13 02:34:09,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:34:09,714 INFO L470 AbstractCegarLoop]: Abstraction has 2336 states and 3076 transitions. [2021-11-13 02:34:09,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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) [2021-11-13 02:34:09,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3076 transitions. [2021-11-13 02:34:09,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-13 02:34:09,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:34:09,722 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-13 02:34:09,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-13 02:34:09,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:34:09,936 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:34:09,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:34:09,936 INFO L85 PathProgramCache]: Analyzing trace with hash 893978310, now seen corresponding path program 1 times [2021-11-13 02:34:09,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:34:09,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619183626] [2021-11-13 02:34:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:34:09,938 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:34:09,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:34:09,939 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:34:09,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-13 02:34:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:34:11,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:34:11,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:12,423 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:34:12,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:13,055 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:34:13,055 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:34:13,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619183626] [2021-11-13 02:34:13,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619183626] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:34:13,056 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:34:13,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 02:34:13,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698907924] [2021-11-13 02:34:13,056 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:34:13,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:34:13,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:34:13,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:34:13,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:34:13,058 INFO L87 Difference]: Start difference. First operand 2336 states and 3076 transitions. Second operand has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 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) [2021-11-13 02:34:13,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:34:13,454 INFO L93 Difference]: Finished difference Result 2336 states and 3076 transitions. [2021-11-13 02:34:13,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:34:13,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 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 180 [2021-11-13 02:34:13,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:34:13,462 INFO L225 Difference]: With dead ends: 2336 [2021-11-13 02:34:13,462 INFO L226 Difference]: Without dead ends: 2164 [2021-11-13 02:34:13,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:34:13,465 INFO L933 BasicCegarLoop]: 1544 mSDtfsCounter, 1379 mSDsluCounter, 3088 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 4632 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.19ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.06ms IncrementalHoareTripleChecker+Time [2021-11-13 02:34:13,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1379 Valid, 4632 Invalid, 1 Unknown, 0 Unchecked, 10.19ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 3.06ms Time] [2021-11-13 02:34:13,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2021-11-13 02:34:13,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 2164. [2021-11-13 02:34:13,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 1488 states have (on average 1.200268817204301) internal successors, (1786), 1523 states have internal predecessors, (1786), 532 states have call successors, (532), 140 states have call predecessors, (532), 138 states have return successors, (556), 526 states have call predecessors, (556), 530 states have call successors, (556) [2021-11-13 02:34:13,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 2874 transitions. [2021-11-13 02:34:13,836 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 2874 transitions. Word has length 180 [2021-11-13 02:34:13,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:34:13,837 INFO L470 AbstractCegarLoop]: Abstraction has 2164 states and 2874 transitions. [2021-11-13 02:34:13,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 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) [2021-11-13 02:34:13,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 2874 transitions. [2021-11-13 02:34:13,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-13 02:34:13,842 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:34:13,843 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 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] [2021-11-13 02:34:13,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-13 02:34:14,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:34:14,060 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:34:14,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:34:14,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1083554571, now seen corresponding path program 1 times [2021-11-13 02:34:14,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:34:14,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668313716] [2021-11-13 02:34:14,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:34:14,062 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:34:14,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:34:14,063 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:34:14,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-13 02:34:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:34:15,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:34:15,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:16,552 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-11-13 02:34:16,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:17,490 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2021-11-13 02:34:17,490 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:34:17,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668313716] [2021-11-13 02:34:17,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668313716] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:34:17,491 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:34:17,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-13 02:34:17,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314956952] [2021-11-13 02:34:17,491 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:34:17,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 02:34:17,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:34:17,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 02:34:17,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:34:17,493 INFO L87 Difference]: Start difference. First operand 2164 states and 2874 transitions. Second operand has 10 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2021-11-13 02:34:18,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:34:18,652 INFO L93 Difference]: Finished difference Result 4315 states and 5803 transitions. [2021-11-13 02:34:18,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:34:18,653 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 209 [2021-11-13 02:34:18,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:34:18,663 INFO L225 Difference]: With dead ends: 4315 [2021-11-13 02:34:18,663 INFO L226 Difference]: Without dead ends: 2168 [2021-11-13 02:34:18,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-13 02:34:18,681 INFO L933 BasicCegarLoop]: 1372 mSDtfsCounter, 624 mSDsluCounter, 7786 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 554.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 9158 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.50ms SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 635.40ms IncrementalHoareTripleChecker+Time [2021-11-13 02:34:18,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [733 Valid, 9158 Invalid, 243 Unknown, 0 Unchecked, 22.50ms Time], IncrementalHoareTripleChecker [108 Valid, 103 Invalid, 0 Unknown, 32 Unchecked, 635.40ms Time] [2021-11-13 02:34:18,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2021-11-13 02:34:19,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 2166. [2021-11-13 02:34:19,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2166 states, 1489 states have (on average 1.198791134989926) internal successors, (1785), 1525 states have internal predecessors, (1785), 532 states have call successors, (532), 140 states have call predecessors, (532), 139 states have return successors, (558), 526 states have call predecessors, (558), 530 states have call successors, (558) [2021-11-13 02:34:19,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2166 states to 2166 states and 2875 transitions. [2021-11-13 02:34:19,013 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 2875 transitions. Word has length 209 [2021-11-13 02:34:19,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:34:19,013 INFO L470 AbstractCegarLoop]: Abstraction has 2166 states and 2875 transitions. [2021-11-13 02:34:19,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2021-11-13 02:34:19,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 2875 transitions. [2021-11-13 02:34:19,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-13 02:34:19,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:34:19,019 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 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] [2021-11-13 02:34:19,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-13 02:34:19,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:34:19,236 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:34:19,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:34:19,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1209526455, now seen corresponding path program 1 times [2021-11-13 02:34:19,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:34:19,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164963601] [2021-11-13 02:34:19,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:34:19,239 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:34:19,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:34:19,240 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:34:19,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-13 02:34:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:34:21,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:34:21,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:21,733 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-11-13 02:34:21,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-11-13 02:34:22,502 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:34:22,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164963601] [2021-11-13 02:34:22,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164963601] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:34:22,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:34:22,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2021-11-13 02:34:22,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959406662] [2021-11-13 02:34:22,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:34:22,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:34:22,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:34:22,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:34:22,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:34:22,505 INFO L87 Difference]: Start difference. First operand 2166 states and 2875 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-13 02:34:24,690 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 [] [2021-11-13 02:34:24,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:34:24,969 INFO L93 Difference]: Finished difference Result 4335 states and 5827 transitions. [2021-11-13 02:34:24,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:34:24,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 209 [2021-11-13 02:34:24,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:34:24,982 INFO L225 Difference]: With dead ends: 4335 [2021-11-13 02:34:24,982 INFO L226 Difference]: Without dead ends: 2186 [2021-11-13 02:34:24,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-13 02:34:25,005 INFO L933 BasicCegarLoop]: 1386 mSDtfsCounter, 7 mSDsluCounter, 5533 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2118.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6919 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.89ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2147.92ms IncrementalHoareTripleChecker+Time [2021-11-13 02:34:25,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 6919 Invalid, 23 Unknown, 0 Unchecked, 9.89ms Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2147.92ms Time] [2021-11-13 02:34:25,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2186 states. [2021-11-13 02:34:25,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2186 to 2177. [2021-11-13 02:34:25,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2177 states, 1498 states have (on average 1.1975967957276368) internal successors, (1794), 1534 states have internal predecessors, (1794), 532 states have call successors, (532), 140 states have call predecessors, (532), 141 states have return successors, (564), 528 states have call predecessors, (564), 530 states have call successors, (564) [2021-11-13 02:34:25,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2177 states to 2177 states and 2890 transitions. [2021-11-13 02:34:25,429 INFO L78 Accepts]: Start accepts. Automaton has 2177 states and 2890 transitions. Word has length 209 [2021-11-13 02:34:25,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:34:25,430 INFO L470 AbstractCegarLoop]: Abstraction has 2177 states and 2890 transitions. [2021-11-13 02:34:25,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-13 02:34:25,430 INFO L276 IsEmpty]: Start isEmpty. Operand 2177 states and 2890 transitions. [2021-11-13 02:34:25,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-13 02:34:25,435 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:34:25,435 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 6, 6, 4, 4, 4, 4, 4, 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] [2021-11-13 02:34:25,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-13 02:34:25,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:34:25,660 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:34:25,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:34:25,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1358224495, now seen corresponding path program 1 times [2021-11-13 02:34:25,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:34:25,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085132829] [2021-11-13 02:34:25,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:34:25,663 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:34:25,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:34:25,665 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:34:25,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-13 02:34:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:34:27,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 1418 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 02:34:27,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:28,335 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-11-13 02:34:28,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:29,418 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2021-11-13 02:34:29,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:34:29,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085132829] [2021-11-13 02:34:29,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085132829] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:34:29,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:34:29,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-11-13 02:34:29,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087579997] [2021-11-13 02:34:29,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:34:29,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:34:29,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:34:29,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:34:29,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:34:29,422 INFO L87 Difference]: Start difference. First operand 2177 states and 2890 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-13 02:34:29,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:34:29,852 INFO L93 Difference]: Finished difference Result 4359 states and 5859 transitions. [2021-11-13 02:34:29,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:34:29,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 225 [2021-11-13 02:34:29,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:34:29,861 INFO L225 Difference]: With dead ends: 4359 [2021-11-13 02:34:29,862 INFO L226 Difference]: Without dead ends: 2199 [2021-11-13 02:34:29,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:34:29,869 INFO L933 BasicCegarLoop]: 1389 mSDtfsCounter, 3 mSDsluCounter, 6933 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8322 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.11ms IncrementalHoareTripleChecker+Time [2021-11-13 02:34:29,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 8322 Invalid, 26 Unknown, 0 Unchecked, 13.13ms Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 105.11ms Time] [2021-11-13 02:34:29,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2021-11-13 02:34:30,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 2188. [2021-11-13 02:34:30,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2188 states, 1506 states have (on average 1.1965471447543161) internal successors, (1802), 1541 states have internal predecessors, (1802), 533 states have call successors, (533), 140 states have call predecessors, (533), 143 states have return successors, (569), 533 states have call predecessors, (569), 531 states have call successors, (569) [2021-11-13 02:34:30,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2188 states to 2188 states and 2904 transitions. [2021-11-13 02:34:30,307 INFO L78 Accepts]: Start accepts. Automaton has 2188 states and 2904 transitions. Word has length 225 [2021-11-13 02:34:30,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:34:30,308 INFO L470 AbstractCegarLoop]: Abstraction has 2188 states and 2904 transitions. [2021-11-13 02:34:30,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-13 02:34:30,309 INFO L276 IsEmpty]: Start isEmpty. Operand 2188 states and 2904 transitions. [2021-11-13 02:34:30,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-13 02:34:30,314 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:34:30,314 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-13 02:34:30,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-11-13 02:34:30,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:34:30,528 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:34:30,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:34:30,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1715251447, now seen corresponding path program 2 times [2021-11-13 02:34:30,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:34:30,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666937970] [2021-11-13 02:34:30,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:34:30,532 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:34:30,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:34:30,533 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:34:30,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-13 02:36:07,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 02:36:07,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:36:08,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-13 02:36:08,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:36:09,300 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2021-11-13 02:36:09,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:36:10,805 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2021-11-13 02:36:10,806 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:36:10,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [666937970] [2021-11-13 02:36:10,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [666937970] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:36:10,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:36:10,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2021-11-13 02:36:10,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173521286] [2021-11-13 02:36:10,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:36:10,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 02:36:10,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:36:10,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 02:36:10,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-13 02:36:10,808 INFO L87 Difference]: Start difference. First operand 2188 states and 2904 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 7 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-13 02:36:11,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:36:11,413 INFO L93 Difference]: Finished difference Result 4377 states and 5885 transitions. [2021-11-13 02:36:11,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 02:36:11,415 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 7 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 241 [2021-11-13 02:36:11,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:36:11,420 INFO L225 Difference]: With dead ends: 4377 [2021-11-13 02:36:11,420 INFO L226 Difference]: Without dead ends: 2206 [2021-11-13 02:36:11,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 466 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-11-13 02:36:11,427 INFO L933 BasicCegarLoop]: 1381 mSDtfsCounter, 5 mSDsluCounter, 9660 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 122.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 11041 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.71ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 147.96ms IncrementalHoareTripleChecker+Time [2021-11-13 02:36:11,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 11041 Invalid, 47 Unknown, 0 Unchecked, 12.71ms Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 147.96ms Time] [2021-11-13 02:36:11,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2021-11-13 02:36:11,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2202. [2021-11-13 02:36:11,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 1518 states have (on average 1.1949934123847168) internal successors, (1814), 1551 states have internal predecessors, (1814), 533 states have call successors, (533), 140 states have call predecessors, (533), 145 states have return successors, (573), 537 states have call predecessors, (573), 531 states have call successors, (573) [2021-11-13 02:36:11,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 2920 transitions. [2021-11-13 02:36:11,733 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 2920 transitions. Word has length 241 [2021-11-13 02:36:11,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:36:11,734 INFO L470 AbstractCegarLoop]: Abstraction has 2202 states and 2920 transitions. [2021-11-13 02:36:11,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 7 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-13 02:36:11,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 2920 transitions. [2021-11-13 02:36:11,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2021-11-13 02:36:11,739 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:36:11,740 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 9, 9, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:36:11,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-13 02:36:11,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:36:11,956 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:36:11,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:36:11,956 INFO L85 PathProgramCache]: Analyzing trace with hash 551515769, now seen corresponding path program 1 times [2021-11-13 02:36:11,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:36:11,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884113811] [2021-11-13 02:36:11,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:36:11,959 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:36:11,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:36:11,960 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:36:12,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-13 02:36:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:36:13,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 1736 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-13 02:36:13,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:36:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 444 proven. 0 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2021-11-13 02:36:15,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:36:17,003 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 24 proven. 30 refuted. 0 times theorem prover too weak. 839 trivial. 0 not checked. [2021-11-13 02:36:17,004 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:36:17,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884113811] [2021-11-13 02:36:17,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884113811] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:36:17,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:36:17,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [15] total 27 [2021-11-13 02:36:17,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864455064] [2021-11-13 02:36:17,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:36:17,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 02:36:17,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:36:17,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 02:36:17,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-11-13 02:36:17,006 INFO L87 Difference]: Start difference. First operand 2202 states and 2920 transitions. Second operand has 15 states, 14 states have (on average 9.785714285714286) internal successors, (137), 13 states have internal predecessors, (137), 6 states have call successors, (45), 2 states have call predecessors, (45), 5 states have return successors, (42), 7 states have call predecessors, (42), 6 states have call successors, (42) [2021-11-13 02:36:19,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:36:19,298 INFO L93 Difference]: Finished difference Result 4501 states and 5987 transitions. [2021-11-13 02:36:19,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-13 02:36:19,298 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.785714285714286) internal successors, (137), 13 states have internal predecessors, (137), 6 states have call successors, (45), 2 states have call predecessors, (45), 5 states have return successors, (42), 7 states have call predecessors, (42), 6 states have call successors, (42) Word has length 358 [2021-11-13 02:36:19,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:36:19,305 INFO L225 Difference]: With dead ends: 4501 [2021-11-13 02:36:19,305 INFO L226 Difference]: Without dead ends: 2424 [2021-11-13 02:36:19,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 726 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=177, Invalid=1155, Unknown=0, NotChecked=0, Total=1332 [2021-11-13 02:36:19,311 INFO L933 BasicCegarLoop]: 1482 mSDtfsCounter, 438 mSDsluCounter, 18667 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1237.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 20149 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.90ms SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1340.07ms IncrementalHoareTripleChecker+Time [2021-11-13 02:36:19,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 20149 Invalid, 771 Unknown, 0 Unchecked, 24.90ms Time], IncrementalHoareTripleChecker [203 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 1340.07ms Time] [2021-11-13 02:36:19,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2021-11-13 02:36:19,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 2236. [2021-11-13 02:36:19,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 1542 states have (on average 1.191958495460441) internal successors, (1838), 1575 states have internal predecessors, (1838), 541 states have call successors, (541), 140 states have call predecessors, (541), 147 states have return successors, (585), 547 states have call predecessors, (585), 539 states have call successors, (585) [2021-11-13 02:36:19,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 2964 transitions. [2021-11-13 02:36:19,585 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 2964 transitions. Word has length 358 [2021-11-13 02:36:19,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:36:19,586 INFO L470 AbstractCegarLoop]: Abstraction has 2236 states and 2964 transitions. [2021-11-13 02:36:19,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.785714285714286) internal successors, (137), 13 states have internal predecessors, (137), 6 states have call successors, (45), 2 states have call predecessors, (45), 5 states have return successors, (42), 7 states have call predecessors, (42), 6 states have call successors, (42) [2021-11-13 02:36:19,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 2964 transitions. [2021-11-13 02:36:19,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-11-13 02:36:19,590 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:36:19,591 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 6, 6, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:36:19,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-13 02:36:19,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:36:19,804 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:36:19,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:36:19,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1765490979, now seen corresponding path program 3 times [2021-11-13 02:36:19,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:36:19,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663046912] [2021-11-13 02:36:19,806 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 02:36:19,806 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:36:19,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:36:19,807 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:36:19,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-13 02:38:01,266 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-13 02:38:01,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:38:01,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-13 02:38:01,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:02,413 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2021-11-13 02:38:02,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:03,083 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2021-11-13 02:38:03,083 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:03,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663046912] [2021-11-13 02:38:03,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663046912] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:03,083 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:03,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-13 02:38:03,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892862983] [2021-11-13 02:38:03,084 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:03,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:38:03,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:03,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:38:03,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:38:03,085 INFO L87 Difference]: Start difference. First operand 2236 states and 2964 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-13 02:38:03,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:03,381 INFO L93 Difference]: Finished difference Result 4064 states and 5418 transitions. [2021-11-13 02:38:03,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:38:03,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 257 [2021-11-13 02:38:03,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:03,388 INFO L225 Difference]: With dead ends: 4064 [2021-11-13 02:38:03,388 INFO L226 Difference]: Without dead ends: 1845 [2021-11-13 02:38:03,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:38:03,396 INFO L933 BasicCegarLoop]: 1383 mSDtfsCounter, 2 mSDsluCounter, 5528 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6911 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.07ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:03,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 6911 Invalid, 18 Unknown, 0 Unchecked, 6.27ms Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 78.07ms Time] [2021-11-13 02:38:03,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2021-11-13 02:38:03,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1835. [2021-11-13 02:38:03,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1265 states have (on average 1.1762845849802372) internal successors, (1488), 1290 states have internal predecessors, (1488), 432 states have call successors, (432), 126 states have call predecessors, (432), 132 states have return successors, (472), 438 states have call predecessors, (472), 430 states have call successors, (472) [2021-11-13 02:38:03,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2392 transitions. [2021-11-13 02:38:03,636 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2392 transitions. Word has length 257 [2021-11-13 02:38:03,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:03,637 INFO L470 AbstractCegarLoop]: Abstraction has 1835 states and 2392 transitions. [2021-11-13 02:38:03,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-13 02:38:03,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2392 transitions. [2021-11-13 02:38:03,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-11-13 02:38:03,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:03,640 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 02:38:03,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:03,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:03,841 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:38:03,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:03,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1893511772, now seen corresponding path program 1 times [2021-11-13 02:38:03,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:03,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680830474] [2021-11-13 02:38:03,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:03,843 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:03,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:03,843 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:03,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-11-13 02:38:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:05,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 1485 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-13 02:38:05,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:06,383 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-13 02:38:06,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:08,267 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2021-11-13 02:38:08,268 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:08,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680830474] [2021-11-13 02:38:08,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680830474] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:38:08,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:38:08,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [16] total 29 [2021-11-13 02:38:08,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58634658] [2021-11-13 02:38:08,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:08,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-13 02:38:08,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:08,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-13 02:38:08,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2021-11-13 02:38:08,270 INFO L87 Difference]: Start difference. First operand 1835 states and 2392 transitions. Second operand has 16 states, 15 states have (on average 9.133333333333333) internal successors, (137), 14 states have internal predecessors, (137), 6 states have call successors, (45), 2 states have call predecessors, (45), 5 states have return successors, (39), 7 states have call predecessors, (39), 6 states have call successors, (39) [2021-11-13 02:38:11,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:11,013 INFO L93 Difference]: Finished difference Result 3768 states and 4941 transitions. [2021-11-13 02:38:11,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 02:38:11,013 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.133333333333333) internal successors, (137), 14 states have internal predecessors, (137), 6 states have call successors, (45), 2 states have call predecessors, (45), 5 states have return successors, (39), 7 states have call predecessors, (39), 6 states have call successors, (39) Word has length 276 [2021-11-13 02:38:11,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:11,019 INFO L225 Difference]: With dead ends: 3768 [2021-11-13 02:38:11,019 INFO L226 Difference]: Without dead ends: 2083 [2021-11-13 02:38:11,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=188, Invalid=1372, Unknown=0, NotChecked=0, Total=1560 [2021-11-13 02:38:11,023 INFO L933 BasicCegarLoop]: 1496 mSDtfsCounter, 436 mSDsluCounter, 20324 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1479.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 21820 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.05ms SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1616.53ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:11,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 21820 Invalid, 837 Unknown, 0 Unchecked, 26.05ms Time], IncrementalHoareTripleChecker [193 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 1616.53ms Time] [2021-11-13 02:38:11,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2021-11-13 02:38:11,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1845. [2021-11-13 02:38:11,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1845 states, 1271 states have (on average 1.1754523996852873) internal successors, (1494), 1296 states have internal predecessors, (1494), 435 states have call successors, (435), 126 states have call predecessors, (435), 133 states have return successors, (479), 441 states have call predecessors, (479), 433 states have call successors, (479) [2021-11-13 02:38:11,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1845 states to 1845 states and 2408 transitions. [2021-11-13 02:38:11,261 INFO L78 Accepts]: Start accepts. Automaton has 1845 states and 2408 transitions. Word has length 276 [2021-11-13 02:38:11,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:11,262 INFO L470 AbstractCegarLoop]: Abstraction has 1845 states and 2408 transitions. [2021-11-13 02:38:11,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.133333333333333) internal successors, (137), 14 states have internal predecessors, (137), 6 states have call successors, (45), 2 states have call predecessors, (45), 5 states have return successors, (39), 7 states have call predecessors, (39), 6 states have call successors, (39) [2021-11-13 02:38:11,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1845 states and 2408 transitions. [2021-11-13 02:38:11,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-13 02:38:11,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:11,265 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:11,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:11,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:11,492 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:38:11,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:11,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1856612913, now seen corresponding path program 1 times [2021-11-13 02:38:11,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:11,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609623780] [2021-11-13 02:38:11,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:11,494 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:11,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:11,495 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:11,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-13 02:38:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:13,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:38:13,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:13,697 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 56 proven. 21 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2021-11-13 02:38:13,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:14,919 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-13 02:38:14,919 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:14,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609623780] [2021-11-13 02:38:14,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1609623780] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:38:14,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1780496607] [2021-11-13 02:38:14,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:14,920 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:38:14,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:38:14,925 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:38:14,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2021-11-13 02:38:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:17,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:38:17,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:17,864 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 56 proven. 21 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2021-11-13 02:38:17,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-13 02:38:18,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1780496607] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:38:18,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148925137] [2021-11-13 02:38:18,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:18,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:38:18,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:38:18,542 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:38:18,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-11-13 02:38:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:19,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 02:38:19,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:20,077 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2021-11-13 02:38:20,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2021-11-13 02:38:20,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148925137] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:20,790 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-13 02:38:20,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [10, 10, 10, 10] total 23 [2021-11-13 02:38:20,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933506272] [2021-11-13 02:38:20,791 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:20,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:38:20,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:20,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:38:20,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2021-11-13 02:38:20,792 INFO L87 Difference]: Start difference. First operand 1845 states and 2408 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-13 02:38:22,897 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:38:23,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:23,237 INFO L93 Difference]: Finished difference Result 1845 states and 2408 transitions. [2021-11-13 02:38:23,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:38:23,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (45), 4 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 278 [2021-11-13 02:38:23,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:23,243 INFO L225 Difference]: With dead ends: 1845 [2021-11-13 02:38:23,243 INFO L226 Difference]: Without dead ends: 1843 [2021-11-13 02:38:23,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1664 GetRequests, 1641 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2021-11-13 02:38:23,244 INFO L933 BasicCegarLoop]: 1438 mSDtfsCounter, 334 mSDsluCounter, 6827 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2118.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 8265 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.66ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2120.09ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:23,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 8265 Invalid, 9 Unknown, 0 Unchecked, 7.66ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 2120.09ms Time] [2021-11-13 02:38:23,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2021-11-13 02:38:23,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1843. [2021-11-13 02:38:23,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1843 states, 1270 states have (on average 1.174015748031496) internal successors, (1491), 1294 states have internal predecessors, (1491), 435 states have call successors, (435), 126 states have call predecessors, (435), 133 states have return successors, (479), 441 states have call predecessors, (479), 433 states have call successors, (479) [2021-11-13 02:38:23,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 2405 transitions. [2021-11-13 02:38:23,539 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 2405 transitions. Word has length 278 [2021-11-13 02:38:23,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:23,540 INFO L470 AbstractCegarLoop]: Abstraction has 1843 states and 2405 transitions. [2021-11-13 02:38:23,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-13 02:38:23,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 2405 transitions. [2021-11-13 02:38:23,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-11-13 02:38:23,542 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:23,542 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 6, 6, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:23,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:23,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:23,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:24,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:38:24,143 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:38:24,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:24,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1256017889, now seen corresponding path program 1 times [2021-11-13 02:38:24,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:24,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91937568] [2021-11-13 02:38:24,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:24,145 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:24,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:24,146 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:24,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-13 02:38:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:25,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 1483 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 02:38:25,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:27,172 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 9 proven. 155 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-13 02:38:27,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:28,283 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2021-11-13 02:38:28,284 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:28,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91937568] [2021-11-13 02:38:28,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91937568] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:38:28,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:38:28,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-11-13 02:38:28,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875844760] [2021-11-13 02:38:28,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:28,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:38:28,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:28,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:38:28,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:38:28,286 INFO L87 Difference]: Start difference. First operand 1843 states and 2405 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-13 02:38:30,389 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:38:34,096 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:38:40,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:38:42,330 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:38:44,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:38:54,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:54,024 INFO L93 Difference]: Finished difference Result 3730 states and 5030 transitions. [2021-11-13 02:38:54,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 02:38:54,025 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 257 [2021-11-13 02:38:54,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:54,040 INFO L225 Difference]: With dead ends: 3730 [2021-11-13 02:38:54,040 INFO L226 Difference]: Without dead ends: 3728 [2021-11-13 02:38:54,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-11-13 02:38:54,043 INFO L933 BasicCegarLoop]: 2250 mSDtfsCounter, 3760 mSDsluCounter, 3339 mSDsCounter, 0 mSdLazyCounter, 3149 mSolverCounterSat, 1607 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23227.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3984 SdHoareTripleChecker+Valid, 5589 SdHoareTripleChecker+Invalid, 4761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.12ms SdHoareTripleChecker+Time, 1607 IncrementalHoareTripleChecker+Valid, 3149 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24851.58ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:54,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3984 Valid, 5589 Invalid, 4761 Unknown, 0 Unchecked, 58.12ms Time], IncrementalHoareTripleChecker [1607 Valid, 3149 Invalid, 5 Unknown, 0 Unchecked, 24851.58ms Time] [2021-11-13 02:38:54,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3728 states. [2021-11-13 02:38:54,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3728 to 3657. [2021-11-13 02:38:54,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3657 states, 2517 states have (on average 1.1764004767580454) internal successors, (2961), 2566 states have internal predecessors, (2961), 864 states have call successors, (864), 251 states have call predecessors, (864), 271 states have return successors, (1128), 875 states have call predecessors, (1128), 862 states have call successors, (1128) [2021-11-13 02:38:54,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3657 states to 3657 states and 4953 transitions. [2021-11-13 02:38:54,464 INFO L78 Accepts]: Start accepts. Automaton has 3657 states and 4953 transitions. Word has length 257 [2021-11-13 02:38:54,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:54,465 INFO L470 AbstractCegarLoop]: Abstraction has 3657 states and 4953 transitions. [2021-11-13 02:38:54,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-13 02:38:54,465 INFO L276 IsEmpty]: Start isEmpty. Operand 3657 states and 4953 transitions. [2021-11-13 02:38:54,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-13 02:38:54,468 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:54,468 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-13 02:38:54,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:54,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:54,669 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_sched_completion__wait_without_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:38:54,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:54,669 INFO L85 PathProgramCache]: Analyzing trace with hash -615254239, now seen corresponding path program 1 times [2021-11-13 02:38:54,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:54,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289816542] [2021-11-13 02:38:54,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:54,671 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:54,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:54,672 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:54,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-11-13 02:38:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:56,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:38:56,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:57,002 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 96 proven. 21 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-11-13 02:38:57,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:58,509 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2021-11-13 02:38:58,509 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:58,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289816542] [2021-11-13 02:38:58,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289816542] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:38:58,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1592030526] [2021-11-13 02:38:58,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:58,510 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:38:58,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:38:58,511 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:38:58,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2021-11-13 02:38:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:59,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:38:59,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:00,526 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-11-13 02:39:00,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:02,042 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-11-13 02:39:02,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1592030526] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:39:02,042 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:39:02,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [10, 10] total 32 [2021-11-13 02:39:02,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960392386] [2021-11-13 02:39:02,043 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:02,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-13 02:39:02,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:02,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-13 02:39:02,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992 [2021-11-13 02:39:02,045 INFO L87 Difference]: Start difference. First operand 3657 states and 4953 transitions. Second operand has 16 states, 16 states have (on average 7.1875) internal successors, (115), 12 states have internal predecessors, (115), 4 states have call successors, (40), 2 states have call predecessors, (40), 5 states have return successors, (41), 7 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-13 02:39:02,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:02,955 INFO L93 Difference]: Finished difference Result 4736 states and 6307 transitions. [2021-11-13 02:39:02,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 02:39:02,956 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.1875) internal successors, (115), 12 states have internal predecessors, (115), 4 states have call successors, (40), 2 states have call predecessors, (40), 5 states have return successors, (41), 7 states have call predecessors, (41), 3 states have call successors, (41) Word has length 278 [2021-11-13 02:39:02,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:02,967 INFO L225 Difference]: With dead ends: 4736 [2021-11-13 02:39:02,967 INFO L226 Difference]: Without dead ends: 3911 [2021-11-13 02:39:02,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1110 GetRequests, 1078 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=147, Invalid=975, Unknown=0, NotChecked=0, Total=1122 [2021-11-13 02:39:02,973 INFO L933 BasicCegarLoop]: 1432 mSDtfsCounter, 66 mSDsluCounter, 14244 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 184.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 15676 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.71ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 202.32ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:02,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 15676 Invalid, 76 Unknown, 0 Unchecked, 16.71ms Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 202.32ms Time] [2021-11-13 02:39:02,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3911 states. [2021-11-13 02:39:03,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3911 to 3697. [2021-11-13 02:39:03,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3697 states, 2545 states have (on average 1.1744597249508841) internal successors, (2989), 2594 states have internal predecessors, (2989), 868 states have call successors, (868), 251 states have call predecessors, (868), 279 states have return successors, (1168), 887 states have call predecessors, (1168), 866 states have call successors, (1168) [2021-11-13 02:39:03,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3697 states to 3697 states and 5025 transitions. [2021-11-13 02:39:03,660 INFO L78 Accepts]: Start accepts. Automaton has 3697 states and 5025 transitions. Word has length 278 [2021-11-13 02:39:03,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:03,660 INFO L470 AbstractCegarLoop]: Abstraction has 3697 states and 5025 transitions. [2021-11-13 02:39:03,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.1875) internal successors, (115), 12 states have internal predecessors, (115), 4 states have call successors, (40), 2 states have call predecessors, (40), 5 states have return successors, (41), 7 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-13 02:39:03,661 INFO L276 IsEmpty]: Start isEmpty. Operand 3697 states and 5025 transitions. [2021-11-13 02:39:03,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2021-11-13 02:39:03,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:03,664 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-13 02:39:03,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:03,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (49)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:04,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:39:04,072 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_sched_completion__wait_without_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:39:04,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:04,072 INFO L85 PathProgramCache]: Analyzing trace with hash -812596288, now seen corresponding path program 1 times [2021-11-13 02:39:04,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:04,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350063149] [2021-11-13 02:39:04,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:04,075 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:04,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:04,076 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:04,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-11-13 02:39:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:05,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 1481 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:39:05,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 96 proven. 21 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-11-13 02:39:06,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:08,061 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2021-11-13 02:39:08,061 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:08,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350063149] [2021-11-13 02:39:08,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350063149] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:39:08,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1307828842] [2021-11-13 02:39:08,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:08,062 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:39:08,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:39:08,063 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:39:08,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2021-11-13 02:39:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:09,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 1481 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:39:09,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:10,174 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-11-13 02:39:10,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:11,793 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-11-13 02:39:11,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1307828842] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:39:11,794 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:39:11,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [10, 10] total 32 [2021-11-13 02:39:11,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646513260] [2021-11-13 02:39:11,795 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:11,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-13 02:39:11,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:11,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-13 02:39:11,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992 [2021-11-13 02:39:11,797 INFO L87 Difference]: Start difference. First operand 3697 states and 5025 transitions. Second operand has 16 states, 16 states have (on average 7.5625) internal successors, (121), 12 states have internal predecessors, (121), 4 states have call successors, (41), 2 states have call predecessors, (41), 5 states have return successors, (42), 7 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-13 02:39:12,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:12,831 INFO L93 Difference]: Finished difference Result 4816 states and 6427 transitions. [2021-11-13 02:39:12,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 02:39:12,832 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.5625) internal successors, (121), 12 states have internal predecessors, (121), 4 states have call successors, (41), 2 states have call predecessors, (41), 5 states have return successors, (42), 7 states have call predecessors, (42), 3 states have call successors, (42) Word has length 286 [2021-11-13 02:39:12,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:12,842 INFO L225 Difference]: With dead ends: 4816 [2021-11-13 02:39:12,843 INFO L226 Difference]: Without dead ends: 3951 [2021-11-13 02:39:12,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1142 GetRequests, 1110 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=147, Invalid=975, Unknown=0, NotChecked=0, Total=1122 [2021-11-13 02:39:12,846 INFO L933 BasicCegarLoop]: 1490 mSDtfsCounter, 67 mSDsluCounter, 14743 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 248.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 16233 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.63ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 274.10ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:12,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 16233 Invalid, 83 Unknown, 0 Unchecked, 18.63ms Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 274.10ms Time] [2021-11-13 02:39:12,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3951 states. [2021-11-13 02:39:13,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3951 to 3701. [2021-11-13 02:39:13,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3701 states, 2549 states have (on average 1.174185955276579) internal successors, (2993), 2598 states have internal predecessors, (2993), 868 states have call successors, (868), 251 states have call predecessors, (868), 279 states have return successors, (1168), 887 states have call predecessors, (1168), 866 states have call successors, (1168) [2021-11-13 02:39:13,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3701 states to 3701 states and 5029 transitions. [2021-11-13 02:39:13,344 INFO L78 Accepts]: Start accepts. Automaton has 3701 states and 5029 transitions. Word has length 286 [2021-11-13 02:39:13,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:13,344 INFO L470 AbstractCegarLoop]: Abstraction has 3701 states and 5029 transitions. [2021-11-13 02:39:13,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.5625) internal successors, (121), 12 states have internal predecessors, (121), 4 states have call successors, (41), 2 states have call predecessors, (41), 5 states have return successors, (42), 7 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-13 02:39:13,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3701 states and 5029 transitions. [2021-11-13 02:39:13,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-11-13 02:39:13,349 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:13,349 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 7, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-13 02:39:13,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:13,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (51)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:13,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:39:13,756 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:39:13,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:13,756 INFO L85 PathProgramCache]: Analyzing trace with hash -619736096, now seen corresponding path program 1 times [2021-11-13 02:39:13,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:13,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413177404] [2021-11-13 02:39:13,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:13,758 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:13,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:13,759 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:13,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-11-13 02:39:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:15,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 1581 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 02:39:15,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:16,661 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2021-11-13 02:39:16,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:17,825 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2021-11-13 02:39:17,825 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:17,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413177404] [2021-11-13 02:39:17,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413177404] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:39:17,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:39:17,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-11-13 02:39:17,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153812658] [2021-11-13 02:39:17,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:17,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:39:17,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:17,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:39:17,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:39:17,827 INFO L87 Difference]: Start difference. First operand 3701 states and 5029 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (37), 4 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-13 02:39:18,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:18,407 INFO L93 Difference]: Finished difference Result 6714 states and 9316 transitions. [2021-11-13 02:39:18,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:39:18,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (37), 4 states have call predecessors, (37), 2 states have call successors, (37) Word has length 297 [2021-11-13 02:39:18,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:18,423 INFO L225 Difference]: With dead ends: 6714 [2021-11-13 02:39:18,423 INFO L226 Difference]: Without dead ends: 3723 [2021-11-13 02:39:18,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:39:18,435 INFO L933 BasicCegarLoop]: 1388 mSDtfsCounter, 5 mSDsluCounter, 6927 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8315 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.54ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 96.25ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:18,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 8315 Invalid, 26 Unknown, 0 Unchecked, 9.54ms Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 96.25ms Time] [2021-11-13 02:39:18,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2021-11-13 02:39:18,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3712. [2021-11-13 02:39:18,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3712 states, 2557 states have (on average 1.173640985529918) internal successors, (3001), 2605 states have internal predecessors, (3001), 870 states have call successors, (870), 251 states have call predecessors, (870), 280 states have return successors, (1174), 891 states have call predecessors, (1174), 868 states have call successors, (1174) [2021-11-13 02:39:18,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3712 states to 3712 states and 5045 transitions. [2021-11-13 02:39:18,906 INFO L78 Accepts]: Start accepts. Automaton has 3712 states and 5045 transitions. Word has length 297 [2021-11-13 02:39:18,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:18,907 INFO L470 AbstractCegarLoop]: Abstraction has 3712 states and 5045 transitions. [2021-11-13 02:39:18,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (37), 4 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-13 02:39:18,908 INFO L276 IsEmpty]: Start isEmpty. Operand 3712 states and 5045 transitions. [2021-11-13 02:39:18,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2021-11-13 02:39:18,913 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:18,913 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-13 02:39:18,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:19,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:39:19,123 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:39:19,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:19,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1360528966, now seen corresponding path program 1 times [2021-11-13 02:39:19,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:19,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153430070] [2021-11-13 02:39:19,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:19,125 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:19,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:19,126 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:19,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-11-13 02:39:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:21,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 1613 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-13 02:39:21,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:22,482 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 71 proven. 3 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2021-11-13 02:39:22,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 71 proven. 3 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2021-11-13 02:39:24,223 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:24,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153430070] [2021-11-13 02:39:24,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153430070] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:39:24,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [744874556] [2021-11-13 02:39:24,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:24,224 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:39:24,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:39:24,225 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:39:24,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2021-11-13 02:39:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:27,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 1613 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-13 02:39:27,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:28,629 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2021-11-13 02:39:28,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:29,934 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2021-11-13 02:39:29,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [744874556] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:39:29,934 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:39:29,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 6] imperfect sequences [12, 12] total 21 [2021-11-13 02:39:29,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568178603] [2021-11-13 02:39:29,935 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:29,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-13 02:39:29,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:29,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-13 02:39:29,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2021-11-13 02:39:29,936 INFO L87 Difference]: Start difference. First operand 3712 states and 5045 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 11 states have internal predecessors, (109), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (36), 5 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-13 02:39:30,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:30,913 INFO L93 Difference]: Finished difference Result 4895 states and 6733 transitions. [2021-11-13 02:39:30,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 02:39:30,915 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 11 states have internal predecessors, (109), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (36), 5 states have call predecessors, (36), 2 states have call successors, (36) Word has length 313 [2021-11-13 02:39:30,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:30,929 INFO L225 Difference]: With dead ends: 4895 [2021-11-13 02:39:30,929 INFO L226 Difference]: Without dead ends: 3718 [2021-11-13 02:39:30,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1251 GetRequests, 1229 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2021-11-13 02:39:30,935 INFO L933 BasicCegarLoop]: 1388 mSDtfsCounter, 8 mSDsluCounter, 13848 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 255.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15236 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.18ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 281.72ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:30,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 15236 Invalid, 78 Unknown, 0 Unchecked, 15.18ms Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 281.72ms Time] [2021-11-13 02:39:30,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3718 states. [2021-11-13 02:39:31,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3718 to 3714. [2021-11-13 02:39:31,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3714 states, 2559 states have (on average 1.1735052754982416) internal successors, (3003), 2606 states have internal predecessors, (3003), 870 states have call successors, (870), 251 states have call predecessors, (870), 280 states have return successors, (1170), 892 states have call predecessors, (1170), 868 states have call successors, (1170) [2021-11-13 02:39:31,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3714 states to 3714 states and 5043 transitions. [2021-11-13 02:39:31,436 INFO L78 Accepts]: Start accepts. Automaton has 3714 states and 5043 transitions. Word has length 313 [2021-11-13 02:39:31,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:31,437 INFO L470 AbstractCegarLoop]: Abstraction has 3714 states and 5043 transitions. [2021-11-13 02:39:31,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 11 states have internal predecessors, (109), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (36), 5 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-13 02:39:31,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3714 states and 5043 transitions. [2021-11-13 02:39:31,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2021-11-13 02:39:31,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:31,442 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:39:31,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (54)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:31,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:31,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:39:31,843 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_sched_completion__wait_without_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:39:31,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:31,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1084621836, now seen corresponding path program 1 times [2021-11-13 02:39:31,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:31,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489589924] [2021-11-13 02:39:31,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:31,845 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:31,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:31,846 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:31,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2021-11-13 02:39:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:33,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:39:33,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 96 proven. 21 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2021-11-13 02:39:34,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:36,546 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2021-11-13 02:39:36,547 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:36,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489589924] [2021-11-13 02:39:36,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489589924] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:39:36,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [451430728] [2021-11-13 02:39:36,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:36,547 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:39:36,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:39:36,548 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:39:36,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2021-11-13 02:39:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:37,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:39:37,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:38,518 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2021-11-13 02:39:38,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:39,502 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2021-11-13 02:39:39,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [451430728] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:39:39,503 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:39:39,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [10, 10] total 22 [2021-11-13 02:39:39,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179740978] [2021-11-13 02:39:39,503 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:39,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:39:39,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:39,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:39:39,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2021-11-13 02:39:39,506 INFO L87 Difference]: Start difference. First operand 3714 states and 5043 transitions. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 4 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2021-11-13 02:39:40,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:40,125 INFO L93 Difference]: Finished difference Result 7364 states and 10359 transitions. [2021-11-13 02:39:40,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:39:40,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 4 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) Word has length 334 [2021-11-13 02:39:40,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:40,148 INFO L225 Difference]: With dead ends: 7364 [2021-11-13 02:39:40,148 INFO L226 Difference]: Without dead ends: 3818 [2021-11-13 02:39:40,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1332 GetRequests, 1312 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2021-11-13 02:39:40,168 INFO L933 BasicCegarLoop]: 1415 mSDtfsCounter, 11 mSDsluCounter, 4205 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5620 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.01ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.30ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:40,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 5620 Invalid, 27 Unknown, 0 Unchecked, 7.01ms Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 69.30ms Time] [2021-11-13 02:39:40,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2021-11-13 02:39:40,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3746. [2021-11-13 02:39:40,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3746 states, 2583 states have (on average 1.1718931475029035) internal successors, (3027), 2630 states have internal predecessors, (3027), 878 states have call successors, (878), 251 states have call predecessors, (878), 280 states have return successors, (1178), 900 states have call predecessors, (1178), 876 states have call successors, (1178) [2021-11-13 02:39:40,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3746 states to 3746 states and 5083 transitions. [2021-11-13 02:39:40,778 INFO L78 Accepts]: Start accepts. Automaton has 3746 states and 5083 transitions. Word has length 334 [2021-11-13 02:39:40,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:40,779 INFO L470 AbstractCegarLoop]: Abstraction has 3746 states and 5083 transitions. [2021-11-13 02:39:40,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 4 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2021-11-13 02:39:40,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3746 states and 5083 transitions. [2021-11-13 02:39:40,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2021-11-13 02:39:40,786 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:40,786 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:39:40,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:41,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (56)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:41,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:39:41,187 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_assert_linux_kernel_sched_completion__wait_without_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:39:41,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:41,188 INFO L85 PathProgramCache]: Analyzing trace with hash -747586420, now seen corresponding path program 1 times [2021-11-13 02:39:41,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:41,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588292291] [2021-11-13 02:39:41,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:41,190 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:41,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:41,191 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:41,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2021-11-13 02:39:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:42,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:39:42,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:43,963 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 96 proven. 21 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2021-11-13 02:39:43,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:45,713 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2021-11-13 02:39:45,713 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:45,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588292291] [2021-11-13 02:39:45,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588292291] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:39:45,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1952007544] [2021-11-13 02:39:45,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:45,714 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:39:45,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:39:45,714 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:39:45,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2021-11-13 02:39:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:46,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:39:46,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:47,867 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2021-11-13 02:39:47,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:49,412 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2021-11-13 02:39:49,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1952007544] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:39:49,413 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:39:49,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [10, 10] total 25 [2021-11-13 02:39:49,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356342721] [2021-11-13 02:39:49,414 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:49,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 02:39:49,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:49,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 02:39:49,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2021-11-13 02:39:49,415 INFO L87 Difference]: Start difference. First operand 3746 states and 5083 transitions. Second operand has 9 states, 7 states have (on average 21.428571428571427) internal successors, (150), 9 states have internal predecessors, (150), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2021-11-13 02:39:51,520 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 [] [2021-11-13 02:39:52,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:52,962 INFO L93 Difference]: Finished difference Result 7372 states and 10421 transitions. [2021-11-13 02:39:52,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 02:39:52,963 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 21.428571428571427) internal successors, (150), 9 states have internal predecessors, (150), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) Word has length 334 [2021-11-13 02:39:52,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:52,991 INFO L225 Difference]: With dead ends: 7372 [2021-11-13 02:39:52,991 INFO L226 Difference]: Without dead ends: 3782 [2021-11-13 02:39:53,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1335 GetRequests, 1309 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2021-11-13 02:39:53,027 INFO L933 BasicCegarLoop]: 1368 mSDtfsCounter, 8 mSDsluCounter, 9515 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2653.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10883 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.92ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2727.10ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:53,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 10883 Invalid, 197 Unknown, 0 Unchecked, 13.92ms Time], IncrementalHoareTripleChecker [23 Valid, 173 Invalid, 1 Unknown, 0 Unchecked, 2727.10ms Time] [2021-11-13 02:39:53,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3782 states. [2021-11-13 02:39:53,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3782 to 3782. [2021-11-13 02:39:53,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3782 states, 2607 states have (on average 1.1718450326045262) internal successors, (3055), 2658 states have internal predecessors, (3055), 882 states have call successors, (882), 255 states have call predecessors, (882), 288 states have return successors, (1188), 904 states have call predecessors, (1188), 880 states have call successors, (1188) [2021-11-13 02:39:53,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3782 states to 3782 states and 5125 transitions. [2021-11-13 02:39:53,551 INFO L78 Accepts]: Start accepts. Automaton has 3782 states and 5125 transitions. Word has length 334 [2021-11-13 02:39:53,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:53,551 INFO L470 AbstractCegarLoop]: Abstraction has 3782 states and 5125 transitions. [2021-11-13 02:39:53,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 21.428571428571427) internal successors, (150), 9 states have internal predecessors, (150), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2021-11-13 02:39:53,552 INFO L276 IsEmpty]: Start isEmpty. Operand 3782 states and 5125 transitions. [2021-11-13 02:39:53,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-11-13 02:39:53,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:53,557 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:39:53,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:53,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (58)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:53,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:39:53,958 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_assert_linux_kernel_sched_completion__wait_without_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:39:53,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:53,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1216712875, now seen corresponding path program 1 times [2021-11-13 02:39:53,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:53,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87563741] [2021-11-13 02:39:53,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:53,960 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:53,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:53,961 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:53,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2021-11-13 02:39:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:55,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 1593 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:39:55,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 96 proven. 21 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-11-13 02:39:56,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:58,496 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-11-13 02:39:58,496 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:58,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87563741] [2021-11-13 02:39:58,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87563741] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:39:58,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1535658245] [2021-11-13 02:39:58,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:58,497 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:39:58,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:39:58,498 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:39:58,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2021-11-13 02:39:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:59,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 1593 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:39:59,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:00,636 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2021-11-13 02:40:00,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:02,340 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2021-11-13 02:40:02,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1535658245] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:40:02,341 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:40:02,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [10, 10] total 25 [2021-11-13 02:40:02,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315449815] [2021-11-13 02:40:02,341 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:40:02,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 02:40:02,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:40:02,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 02:40:02,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2021-11-13 02:40:02,343 INFO L87 Difference]: Start difference. First operand 3782 states and 5125 transitions. Second operand has 9 states, 7 states have (on average 21.571428571428573) internal successors, (151), 9 states have internal predecessors, (151), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2021-11-13 02:40:04,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:40:06,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:40:06,249 INFO L93 Difference]: Finished difference Result 7432 states and 10397 transitions. [2021-11-13 02:40:06,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 02:40:06,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 21.571428571428573) internal successors, (151), 9 states have internal predecessors, (151), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) Word has length 335 [2021-11-13 02:40:06,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:40:06,273 INFO L225 Difference]: With dead ends: 7432 [2021-11-13 02:40:06,273 INFO L226 Difference]: Without dead ends: 3794 [2021-11-13 02:40:06,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1339 GetRequests, 1313 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2021-11-13 02:40:06,296 INFO L933 BasicCegarLoop]: 1369 mSDtfsCounter, 7 mSDsluCounter, 9520 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2792.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10889 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.83ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2875.28ms IncrementalHoareTripleChecker+Time [2021-11-13 02:40:06,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 10889 Invalid, 196 Unknown, 0 Unchecked, 15.83ms Time], IncrementalHoareTripleChecker [22 Valid, 173 Invalid, 1 Unknown, 0 Unchecked, 2875.28ms Time] [2021-11-13 02:40:06,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3794 states. [2021-11-13 02:40:06,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3794 to 3786. [2021-11-13 02:40:06,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3786 states, 2611 states have (on average 1.1731137495212562) internal successors, (3063), 2662 states have internal predecessors, (3063), 882 states have call successors, (882), 255 states have call predecessors, (882), 288 states have return successors, (1188), 904 states have call predecessors, (1188), 880 states have call successors, (1188) [2021-11-13 02:40:06,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3786 states to 3786 states and 5133 transitions. [2021-11-13 02:40:06,826 INFO L78 Accepts]: Start accepts. Automaton has 3786 states and 5133 transitions. Word has length 335 [2021-11-13 02:40:06,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:40:06,826 INFO L470 AbstractCegarLoop]: Abstraction has 3786 states and 5133 transitions. [2021-11-13 02:40:06,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 21.571428571428573) internal successors, (151), 9 states have internal predecessors, (151), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2021-11-13 02:40:06,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3786 states and 5133 transitions. [2021-11-13 02:40:06,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-11-13 02:40:06,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:06,835 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:40:06,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (59)] Ended with exit code 0 [2021-11-13 02:40:07,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (60)] Forceful destruction successful, exit code 0 [2021-11-13 02:40:07,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:40:07,260 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_assert_linux_kernel_sched_completion__wait_without_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:40:07,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:07,260 INFO L85 PathProgramCache]: Analyzing trace with hash -120631382, now seen corresponding path program 1 times [2021-11-13 02:40:07,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:40:07,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949871154] [2021-11-13 02:40:07,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:07,262 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:40:07,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:40:07,263 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:40:07,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2021-11-13 02:40:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:09,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 1601 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:40:09,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:10,062 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 96 proven. 21 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2021-11-13 02:40:10,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:11,780 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2021-11-13 02:40:11,780 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:40:11,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949871154] [2021-11-13 02:40:11,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949871154] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:40:11,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1003193266] [2021-11-13 02:40:11,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:11,780 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:40:11,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:40:11,781 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:40:11,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2021-11-13 02:40:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:14,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 1601 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:40:14,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:15,436 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 96 proven. 21 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2021-11-13 02:40:15,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:16,679 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2021-11-13 02:40:16,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1003193266] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:40:16,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879481162] [2021-11-13 02:40:16,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:16,680 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:40:16,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:40:16,681 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:40:16,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-11-13 02:40:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:17,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 1601 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 02:40:17,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:18,852 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 88 proven. 1 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2021-11-13 02:40:18,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2021-11-13 02:40:20,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879481162] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:40:20,802 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:40:20,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 7, 7] total 27 [2021-11-13 02:40:20,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95717333] [2021-11-13 02:40:20,803 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:40:20,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-13 02:40:20,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:40:20,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-13 02:40:20,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2021-11-13 02:40:20,806 INFO L87 Difference]: Start difference. First operand 3786 states and 5133 transitions. Second operand has 27 states, 25 states have (on average 8.72) internal successors, (218), 27 states have internal predecessors, (218), 4 states have call successors, (68), 2 states have call predecessors, (68), 7 states have return successors, (71), 4 states have call predecessors, (71), 4 states have call successors, (71) [2021-11-13 02:40:25,847 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:40:28,001 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:40:32,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:40:32,800 INFO L93 Difference]: Finished difference Result 7536 states and 10645 transitions. [2021-11-13 02:40:32,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-13 02:40:32,801 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 8.72) internal successors, (218), 27 states have internal predecessors, (218), 4 states have call successors, (68), 2 states have call predecessors, (68), 7 states have return successors, (71), 4 states have call predecessors, (71), 4 states have call successors, (71) Word has length 336 [2021-11-13 02:40:32,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:40:32,820 INFO L225 Difference]: With dead ends: 7536 [2021-11-13 02:40:32,820 INFO L226 Difference]: Without dead ends: 3862 [2021-11-13 02:40:32,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2031 GetRequests, 1985 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=451, Invalid=1805, Unknown=0, NotChecked=0, Total=2256 [2021-11-13 02:40:32,839 INFO L933 BasicCegarLoop]: 1366 mSDtfsCounter, 61 mSDsluCounter, 25771 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 116 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7850.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 27137 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.54ms SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8322.27ms IncrementalHoareTripleChecker+Time [2021-11-13 02:40:32,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 27137 Invalid, 1117 Unknown, 0 Unchecked, 35.54ms Time], IncrementalHoareTripleChecker [116 Valid, 999 Invalid, 2 Unknown, 0 Unchecked, 8322.27ms Time] [2021-11-13 02:40:32,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3862 states. [2021-11-13 02:40:33,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3862 to 3834. [2021-11-13 02:40:33,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3834 states, 2659 states have (on average 1.1729973674313652) internal successors, (3119), 2710 states have internal predecessors, (3119), 882 states have call successors, (882), 255 states have call predecessors, (882), 288 states have return successors, (1188), 904 states have call predecessors, (1188), 880 states have call successors, (1188) [2021-11-13 02:40:33,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3834 states to 3834 states and 5189 transitions. [2021-11-13 02:40:33,329 INFO L78 Accepts]: Start accepts. Automaton has 3834 states and 5189 transitions. Word has length 336 [2021-11-13 02:40:33,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:40:33,329 INFO L470 AbstractCegarLoop]: Abstraction has 3834 states and 5189 transitions. [2021-11-13 02:40:33,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 8.72) internal successors, (218), 27 states have internal predecessors, (218), 4 states have call successors, (68), 2 states have call predecessors, (68), 7 states have return successors, (71), 4 states have call predecessors, (71), 4 states have call successors, (71) [2021-11-13 02:40:33,329 INFO L276 IsEmpty]: Start isEmpty. Operand 3834 states and 5189 transitions. [2021-11-13 02:40:33,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-11-13 02:40:33,335 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:33,336 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 8, 8, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-13 02:40:33,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (62)] Forceful destruction successful, exit code 0 [2021-11-13 02:40:33,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2021-11-13 02:40:33,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (61)] Ended with exit code 0 [2021-11-13 02:40:33,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:40:33,937 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-13 02:40:33,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:33,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1439456332, now seen corresponding path program 1 times [2021-11-13 02:40:33,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:40:33,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [740344539] [2021-11-13 02:40:33,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:33,939 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:40:33,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:40:33,940 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:40:33,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2021-11-13 02:40:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:36,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-13 02:40:36,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:38,175 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 55 proven. 482 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2021-11-13 02:40:38,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:40,403 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2021-11-13 02:40:40,403 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:40:40,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [740344539] [2021-11-13 02:40:40,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [740344539] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:40:40,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [35243406] [2021-11-13 02:40:40,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:40,404 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:40:40,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:40:40,405 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:40:40,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2021-11-13 02:40:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:45,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-13 02:40:45,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:47,092 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 55 proven. 482 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2021-11-13 02:40:47,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:48,569 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2021-11-13 02:40:48,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [35243406] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:40:48,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926651407] [2021-11-13 02:40:48,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:48,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:40:48,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:40:48,571 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:40:48,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7afa9a-139f-4eb5-94d2-50c56b11b024/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-11-13 02:40:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:49,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-13 02:40:49,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:52,078 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 55 proven. 482 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2021-11-13 02:40:52,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:53,990 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2021-11-13 02:40:53,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926651407] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:40:53,990 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:40:53,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8, 10, 14, 14] total 26 [2021-11-13 02:40:53,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016992410] [2021-11-13 02:40:53,991 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:40:53,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-13 02:40:53,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:40:53,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-13 02:40:53,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2021-11-13 02:40:53,994 INFO L87 Difference]: Start difference. First operand 3834 states and 5189 transitions. Second operand has 26 states, 26 states have (on average 9.692307692307692) internal successors, (252), 24 states have internal predecessors, (252), 10 states have call successors, (78), 9 states have call predecessors, (78), 8 states have return successors, (76), 12 states have call predecessors, (76), 10 states have call successors, (76) [2021-11-13 02:40:56,123 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:40:58,132 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:41:07,213 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:41:09,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:41:11,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:41:13,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:41:15,264 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:41:36,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:41:38,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:41:40,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:41:42,180 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:41:44,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:42:33,427 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:42:35,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:42:37,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:42:39,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:43:18,542 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:43:20,549 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:43:22,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:43:24,554 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:43:26,564 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:43:28,565 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:43:30,760 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:43:32,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:43:34,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:43:36,827 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:43:38,843 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:43:40,847 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:44:02,135 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:44:04,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:44:06,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []