./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--mtd--devices--docg3.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW --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 68426913596b871b4c11813b726bd276e51998a12b1bbf8670be5ac2879b4991 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:22:49,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:22:49,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:22:49,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:22:49,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:22:49,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:22:49,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:22:49,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:22:49,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:22:49,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:22:49,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:22:49,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:22:49,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:22:49,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:22:49,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:22:49,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:22:49,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:22:49,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:22:49,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:22:49,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:22:49,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:22:49,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:22:49,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:22:49,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:22:49,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:22:49,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:22:49,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:22:49,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:22:49,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:22:49,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:22:49,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:22:49,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:22:49,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:22:49,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:22:49,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:22:49,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:22:49,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:22:49,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:22:49,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:22:49,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:22:49,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:22:49,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:22:49,869 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:22:49,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:22:49,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:22:49,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:22:49,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:22:49,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:22:49,872 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:22:49,872 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:22:49,872 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:22:49,873 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:22:49,874 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:22:49,874 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:22:49,875 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:22:49,875 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:22:49,875 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:22:49,875 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:22:49,876 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:22:49,876 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:22:49,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:22:49,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:22:49,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:22:49,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:22:49,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:22:49,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:22:49,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:22:49,878 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:22:49,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:22:49,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:22:49,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:22:49,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:22:49,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:22:49,880 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:22:49,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:22:49,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:22:49,881 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:22:49,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:22:49,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:22:49,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:22:49,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68426913596b871b4c11813b726bd276e51998a12b1bbf8670be5ac2879b4991 [2022-11-23 14:22:50,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:22:50,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:22:50,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:22:50,282 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:22:50,282 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:22:50,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i [2022-11-23 14:22:53,588 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:22:54,346 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:22:54,347 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i [2022-11-23 14:22:54,407 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/data/783043b49/f8d2d4397ee8458992d95b5ac9407a18/FLAGbca57f229 [2022-11-23 14:22:54,430 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/data/783043b49/f8d2d4397ee8458992d95b5ac9407a18 [2022-11-23 14:22:54,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:22:54,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:22:54,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:22:54,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:22:54,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:22:54,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:54" (1/1) ... [2022-11-23 14:22:54,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b8cbd69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:54, skipping insertion in model container [2022-11-23 14:22:54,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:54" (1/1) ... [2022-11-23 14:22:54,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:22:54,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:22:58,418 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377771,377784] [2022-11-23 14:22:58,423 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377916,377929] [2022-11-23 14:22:58,424 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378062,378075] [2022-11-23 14:22:58,425 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378227,378240] [2022-11-23 14:22:58,426 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378385,378398] [2022-11-23 14:22:58,426 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378543,378556] [2022-11-23 14:22:58,427 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378701,378714] [2022-11-23 14:22:58,428 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378861,378874] [2022-11-23 14:22:58,429 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379020,379033] [2022-11-23 14:22:58,429 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379159,379172] [2022-11-23 14:22:58,435 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379301,379314] [2022-11-23 14:22:58,436 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379450,379463] [2022-11-23 14:22:58,437 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379589,379602] [2022-11-23 14:22:58,439 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379744,379757] [2022-11-23 14:22:58,440 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379904,379917] [2022-11-23 14:22:58,440 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380055,380068] [2022-11-23 14:22:58,441 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380206,380219] [2022-11-23 14:22:58,442 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380358,380371] [2022-11-23 14:22:58,443 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380507,380520] [2022-11-23 14:22:58,444 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380655,380668] [2022-11-23 14:22:58,444 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380812,380825] [2022-11-23 14:22:58,445 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380961,380974] [2022-11-23 14:22:58,446 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381117,381130] [2022-11-23 14:22:58,447 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381270,381283] [2022-11-23 14:22:58,448 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381416,381429] [2022-11-23 14:22:58,450 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381559,381572] [2022-11-23 14:22:58,451 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381711,381724] [2022-11-23 14:22:58,453 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381857,381870] [2022-11-23 14:22:58,453 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382002,382015] [2022-11-23 14:22:58,454 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382156,382169] [2022-11-23 14:22:58,454 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382307,382320] [2022-11-23 14:22:58,455 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382462,382475] [2022-11-23 14:22:58,456 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382614,382627] [2022-11-23 14:22:58,457 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382769,382782] [2022-11-23 14:22:58,458 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382933,382946] [2022-11-23 14:22:58,458 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383089,383102] [2022-11-23 14:22:58,459 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383253,383266] [2022-11-23 14:22:58,459 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383395,383408] [2022-11-23 14:22:58,460 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383553,383566] [2022-11-23 14:22:58,461 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383720,383733] [2022-11-23 14:22:58,462 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383879,383892] [2022-11-23 14:22:58,463 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384038,384051] [2022-11-23 14:22:58,464 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384187,384200] [2022-11-23 14:22:58,465 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384334,384347] [2022-11-23 14:22:58,465 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384473,384486] [2022-11-23 14:22:58,466 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384636,384649] [2022-11-23 14:22:58,466 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384802,384815] [2022-11-23 14:22:58,468 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384966,384979] [2022-11-23 14:22:58,468 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385131,385144] [2022-11-23 14:22:58,469 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385296,385309] [2022-11-23 14:22:58,470 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385462,385475] [2022-11-23 14:22:58,470 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385627,385640] [2022-11-23 14:22:58,471 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385794,385807] [2022-11-23 14:22:58,471 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385954,385967] [2022-11-23 14:22:58,472 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386116,386129] [2022-11-23 14:22:58,472 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386275,386288] [2022-11-23 14:22:58,473 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386421,386434] [2022-11-23 14:22:58,473 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386564,386577] [2022-11-23 14:22:58,474 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386708,386721] [2022-11-23 14:22:58,475 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386851,386864] [2022-11-23 14:22:58,476 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386995,387008] [2022-11-23 14:22:58,476 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387136,387149] [2022-11-23 14:22:58,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387274,387287] [2022-11-23 14:22:58,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387432,387445] [2022-11-23 14:22:58,478 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387591,387604] [2022-11-23 14:22:58,479 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387747,387760] [2022-11-23 14:22:58,480 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387896,387909] [2022-11-23 14:22:58,481 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388048,388061] [2022-11-23 14:22:58,481 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388199,388212] [2022-11-23 14:22:58,484 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388348,388361] [2022-11-23 14:22:58,484 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388500,388513] [2022-11-23 14:22:58,485 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388648,388661] [2022-11-23 14:22:58,486 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388801,388814] [2022-11-23 14:22:58,486 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388952,388965] [2022-11-23 14:22:58,487 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389102,389115] [2022-11-23 14:22:58,488 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389249,389262] [2022-11-23 14:22:58,488 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389400,389413] [2022-11-23 14:22:58,489 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389551,389564] [2022-11-23 14:22:58,489 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389699,389712] [2022-11-23 14:22:58,490 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389865,389878] [2022-11-23 14:22:58,490 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390034,390047] [2022-11-23 14:22:58,491 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390201,390214] [2022-11-23 14:22:58,491 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390369,390382] [2022-11-23 14:22:58,492 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390519,390532] [2022-11-23 14:22:58,493 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390666,390679] [2022-11-23 14:22:58,494 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390827,390840] [2022-11-23 14:22:58,494 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390997,391010] [2022-11-23 14:22:58,495 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[391159,391172] [2022-11-23 14:22:58,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:22:58,576 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:22:59,072 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377771,377784] [2022-11-23 14:22:59,073 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377916,377929] [2022-11-23 14:22:59,073 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378062,378075] [2022-11-23 14:22:59,074 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378227,378240] [2022-11-23 14:22:59,074 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378385,378398] [2022-11-23 14:22:59,075 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378543,378556] [2022-11-23 14:22:59,076 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378701,378714] [2022-11-23 14:22:59,076 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378861,378874] [2022-11-23 14:22:59,077 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379020,379033] [2022-11-23 14:22:59,077 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379159,379172] [2022-11-23 14:22:59,078 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379301,379314] [2022-11-23 14:22:59,078 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379450,379463] [2022-11-23 14:22:59,079 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379589,379602] [2022-11-23 14:22:59,079 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379744,379757] [2022-11-23 14:22:59,080 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379904,379917] [2022-11-23 14:22:59,081 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380055,380068] [2022-11-23 14:22:59,081 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380206,380219] [2022-11-23 14:22:59,082 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380358,380371] [2022-11-23 14:22:59,083 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380507,380520] [2022-11-23 14:22:59,083 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380655,380668] [2022-11-23 14:22:59,084 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380812,380825] [2022-11-23 14:22:59,084 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380961,380974] [2022-11-23 14:22:59,085 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381117,381130] [2022-11-23 14:22:59,086 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381270,381283] [2022-11-23 14:22:59,086 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381416,381429] [2022-11-23 14:22:59,087 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381559,381572] [2022-11-23 14:22:59,087 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381711,381724] [2022-11-23 14:22:59,088 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381857,381870] [2022-11-23 14:22:59,088 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382002,382015] [2022-11-23 14:22:59,089 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382156,382169] [2022-11-23 14:22:59,089 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382307,382320] [2022-11-23 14:22:59,090 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382462,382475] [2022-11-23 14:22:59,091 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382614,382627] [2022-11-23 14:22:59,091 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382769,382782] [2022-11-23 14:22:59,092 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382933,382946] [2022-11-23 14:22:59,092 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383089,383102] [2022-11-23 14:22:59,093 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383253,383266] [2022-11-23 14:22:59,093 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383395,383408] [2022-11-23 14:22:59,094 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383553,383566] [2022-11-23 14:22:59,095 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383720,383733] [2022-11-23 14:22:59,095 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383879,383892] [2022-11-23 14:22:59,096 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384038,384051] [2022-11-23 14:22:59,096 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384187,384200] [2022-11-23 14:22:59,097 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384334,384347] [2022-11-23 14:22:59,097 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384473,384486] [2022-11-23 14:22:59,098 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384636,384649] [2022-11-23 14:22:59,099 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384802,384815] [2022-11-23 14:22:59,099 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384966,384979] [2022-11-23 14:22:59,100 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385131,385144] [2022-11-23 14:22:59,100 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385296,385309] [2022-11-23 14:22:59,101 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385462,385475] [2022-11-23 14:22:59,102 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385627,385640] [2022-11-23 14:22:59,102 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385794,385807] [2022-11-23 14:22:59,103 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385954,385967] [2022-11-23 14:22:59,103 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386116,386129] [2022-11-23 14:22:59,104 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386275,386288] [2022-11-23 14:22:59,105 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386421,386434] [2022-11-23 14:22:59,105 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386564,386577] [2022-11-23 14:22:59,106 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386708,386721] [2022-11-23 14:22:59,106 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386851,386864] [2022-11-23 14:22:59,107 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386995,387008] [2022-11-23 14:22:59,107 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387136,387149] [2022-11-23 14:22:59,108 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387274,387287] [2022-11-23 14:22:59,109 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387432,387445] [2022-11-23 14:22:59,109 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387591,387604] [2022-11-23 14:22:59,110 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387747,387760] [2022-11-23 14:22:59,111 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387896,387909] [2022-11-23 14:22:59,111 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388048,388061] [2022-11-23 14:22:59,112 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388199,388212] [2022-11-23 14:22:59,112 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388348,388361] [2022-11-23 14:22:59,113 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388500,388513] [2022-11-23 14:22:59,113 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388648,388661] [2022-11-23 14:22:59,114 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388801,388814] [2022-11-23 14:22:59,115 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388952,388965] [2022-11-23 14:22:59,115 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389102,389115] [2022-11-23 14:22:59,116 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389249,389262] [2022-11-23 14:22:59,116 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389400,389413] [2022-11-23 14:22:59,117 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389551,389564] [2022-11-23 14:22:59,117 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389699,389712] [2022-11-23 14:22:59,118 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389865,389878] [2022-11-23 14:22:59,119 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390034,390047] [2022-11-23 14:22:59,119 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390201,390214] [2022-11-23 14:22:59,120 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390369,390382] [2022-11-23 14:22:59,120 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390519,390532] [2022-11-23 14:22:59,121 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390666,390679] [2022-11-23 14:22:59,121 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390827,390840] [2022-11-23 14:22:59,122 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390997,391010] [2022-11-23 14:22:59,122 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[391159,391172] [2022-11-23 14:22:59,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:22:59,384 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:22:59,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:59 WrapperNode [2022-11-23 14:22:59,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:22:59,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:22:59,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:22:59,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:22:59,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:59" (1/1) ... [2022-11-23 14:22:59,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:59" (1/1) ... [2022-11-23 14:22:59,756 INFO L138 Inliner]: procedures = 642, calls = 3012, calls flagged for inlining = 308, calls inlined = 202, statements flattened = 4626 [2022-11-23 14:22:59,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:22:59,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:22:59,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:22:59,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:22:59,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:59" (1/1) ... [2022-11-23 14:22:59,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:59" (1/1) ... [2022-11-23 14:22:59,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:59" (1/1) ... [2022-11-23 14:22:59,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:59" (1/1) ... [2022-11-23 14:22:59,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:59" (1/1) ... [2022-11-23 14:22:59,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:59" (1/1) ... [2022-11-23 14:23:00,019 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:59" (1/1) ... [2022-11-23 14:23:00,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:59" (1/1) ... [2022-11-23 14:23:00,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:23:00,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:23:00,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:23:00,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:23:00,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:59" (1/1) ... [2022-11-23 14:23:00,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:23:00,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:23:00,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:23:00,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:23:00,161 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_prepare [2022-11-23 14:23:00,161 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_prepare [2022-11-23 14:23:00,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-23 14:23:00,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-23 14:23:00,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 14:23:00,162 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 14:23:00,162 INFO L130 BoogieDeclarations]: Found specification of procedure doc_writeb [2022-11-23 14:23:00,162 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_writeb [2022-11-23 14:23:00,164 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-23 14:23:00,164 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-23 14:23:00,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:23:00,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:23:00,164 INFO L130 BoogieDeclarations]: Found specification of procedure doc_writew [2022-11-23 14:23:00,165 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_writew [2022-11-23 14:23:00,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-23 14:23:00,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-23 14:23:00,165 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_ecc_init [2022-11-23 14:23:00,165 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_ecc_init [2022-11-23 14:23:00,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-23 14:23:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-23 14:23:00,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_docg3_cascade [2022-11-23 14:23:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_docg3_cascade [2022-11-23 14:23:00,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-23 14:23:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-23 14:23:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_pm_ops_instance_6 [2022-11-23 14:23:00,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_pm_ops_instance_6 [2022-11-23 14:23:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure doc_set_reliable_mode [2022-11-23 14:23:00,167 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_set_reliable_mode [2022-11-23 14:23:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 14:23:00,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 14:23:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_data_area [2022-11-23 14:23:00,168 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_data_area [2022-11-23 14:23:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 14:23:00,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 14:23:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-23 14:23:00,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-23 14:23:00,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:23:00,169 INFO L130 BoogieDeclarations]: Found specification of procedure doc_is_ready [2022-11-23 14:23:00,169 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_is_ready [2022-11-23 14:23:00,169 INFO L130 BoogieDeclarations]: Found specification of procedure doc_register_readw [2022-11-23 14:23:00,169 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_register_readw [2022-11-23 14:23:00,170 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_release [2022-11-23 14:23:00,170 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_release [2022-11-23 14:23:00,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-23 14:23:00,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-23 14:23:00,170 INFO L130 BoogieDeclarations]: Found specification of procedure doc_register_readb [2022-11-23 14:23:00,170 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_register_readb [2022-11-23 14:23:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_resume [2022-11-23 14:23:00,171 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_resume [2022-11-23 14:23:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:23:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-23 14:23:00,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-23 14:23:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 14:23:00,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 14:23:00,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-23 14:23:00,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-23 14:23:00,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:23:00,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-23 14:23:00,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-23 14:23:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure doc_readw [2022-11-23 14:23:00,173 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_readw [2022-11-23 14:23:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure doc_release_device [2022-11-23 14:23:00,174 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_release_device [2022-11-23 14:23:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-23 14:23:00,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-23 14:23:00,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 14:23:00,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 14:23:00,179 INFO L130 BoogieDeclarations]: Found specification of procedure doc_readb [2022-11-23 14:23:00,180 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_readb [2022-11-23 14:23:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-23 14:23:00,181 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-23 14:23:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure trace_define_field [2022-11-23 14:23:00,181 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_define_field [2022-11-23 14:23:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-23 14:23:00,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-23 14:23:00,190 INFO L130 BoogieDeclarations]: Found specification of procedure doc_set_device_id [2022-11-23 14:23:00,190 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_set_device_id [2022-11-23 14:23:00,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-23 14:23:00,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-23 14:23:00,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_check_return_value_probe [2022-11-23 14:23:00,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_check_return_value_probe [2022-11-23 14:23:00,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:23:00,191 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-11-23 14:23:00,191 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-11-23 14:23:00,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_check_return_value_probe [2022-11-23 14:23:00,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_check_return_value_probe [2022-11-23 14:23:00,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:23:00,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 14:23:00,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 14:23:00,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:23:00,192 INFO L130 BoogieDeclarations]: Found specification of procedure doc_delay [2022-11-23 14:23:00,193 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_delay [2022-11-23 14:23:00,193 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 14:23:00,194 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:23:00,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:23:00,194 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:23:00,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:23:00,194 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-23 14:23:00,194 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-23 14:23:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_getbytes [2022-11-23 14:23:00,195 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_getbytes [2022-11-23 14:23:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure doc_set_asic_mode [2022-11-23 14:23:00,195 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_set_asic_mode [2022-11-23 14:23:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure doc_flash_sequence [2022-11-23 14:23:00,195 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_flash_sequence [2022-11-23 14:23:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-11-23 14:23:00,196 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-11-23 14:23:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-23 14:23:00,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-23 14:23:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_suspend [2022-11-23 14:23:00,196 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_suspend [2022-11-23 14:23:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:23:00,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:23:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_probe [2022-11-23 14:23:00,197 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_probe [2022-11-23 14:23:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:23:00,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:23:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-23 14:23:00,198 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-23 14:23:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-23 14:23:00,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-23 14:23:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-23 14:23:00,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-23 14:23:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-11-23 14:23:00,200 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-11-23 14:23:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-23 14:23:00,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-23 14:23:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:23:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure doc_page_finish [2022-11-23 14:23:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_page_finish [2022-11-23 14:23:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-23 14:23:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-23 14:23:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:23:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure doc_reset_seq [2022-11-23 14:23:00,202 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_reset_seq [2022-11-23 14:23:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure doc_flash_command [2022-11-23 14:23:00,202 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_flash_command [2022-11-23 14:23:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_finish [2022-11-23 14:23:00,202 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_finish [2022-11-23 14:23:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace [2022-11-23 14:23:00,203 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace [2022-11-23 14:23:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-23 14:23:00,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-23 14:23:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:23:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-23 14:23:00,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-23 14:23:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 14:23:00,204 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 14:23:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-23 14:23:00,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-23 14:23:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_docg3_cascade [2022-11-23 14:23:00,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_docg3_cascade [2022-11-23 14:23:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 14:23:00,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 14:23:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 14:23:00,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 14:23:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-23 14:23:00,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-23 14:23:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-23 14:23:00,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-23 14:23:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_dev2docg3 [2022-11-23 14:23:00,206 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_dev2docg3 [2022-11-23 14:23:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-23 14:23:00,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-23 14:23:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-23 14:23:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-23 14:23:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-23 14:23:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-23 14:23:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 14:23:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 14:23:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-23 14:23:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-23 14:23:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-23 14:23:00,208 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-23 14:23:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:23:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-23 14:23:00,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-23 14:23:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-23 14:23:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-23 14:23:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure doc_flash_address [2022-11-23 14:23:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_flash_address [2022-11-23 14:23:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:23:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:23:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure trace_docg3_io [2022-11-23 14:23:00,210 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_docg3_io [2022-11-23 14:23:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-23 14:23:00,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-23 14:23:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-23 14:23:00,210 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-23 14:23:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure doc_wait_ready [2022-11-23 14:23:00,211 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_wait_ready [2022-11-23 14:23:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure free_bch [2022-11-23 14:23:00,214 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bch [2022-11-23 14:23:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 14:23:00,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 14:23:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-23 14:23:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-23 14:23:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:23:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure doc_setup_addr_sector [2022-11-23 14:23:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_setup_addr_sector [2022-11-23 14:23:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-23 14:23:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-23 14:23:01,081 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:23:01,085 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:23:01,932 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:23:14,918 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:23:15,663 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:23:15,663 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 14:23:15,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:15 BoogieIcfgContainer [2022-11-23 14:23:15,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:23:15,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:23:15,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:23:15,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:23:15,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:22:54" (1/3) ... [2022-11-23 14:23:15,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275af01d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:15, skipping insertion in model container [2022-11-23 14:23:15,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:59" (2/3) ... [2022-11-23 14:23:15,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275af01d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:15, skipping insertion in model container [2022-11-23 14:23:15,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:15" (3/3) ... [2022-11-23 14:23:15,686 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i [2022-11-23 14:23:15,707 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:23:15,708 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2022-11-23 14:23:15,818 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:23:15,834 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46b79b8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:23:15,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-23 14:23:15,847 INFO L276 IsEmpty]: Start isEmpty. Operand has 1290 states, 706 states have (on average 1.3172804532577904) internal successors, (930), 778 states have internal predecessors, (930), 463 states have call successors, (463), 94 states have call predecessors, (463), 93 states have return successors, (452), 441 states have call predecessors, (452), 452 states have call successors, (452) [2022-11-23 14:23:15,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-23 14:23:15,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:15,859 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:15,859 INFO L420 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 25 more)] === [2022-11-23 14:23:15,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:15,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1713808928, now seen corresponding path program 1 times [2022-11-23 14:23:15,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:15,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263406521] [2022-11-23 14:23:15,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:15,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:17,255 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:23:17,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:17,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263406521] [2022-11-23 14:23:17,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263406521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:17,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:17,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:23:17,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752892839] [2022-11-23 14:23:17,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:17,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:23:17,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:17,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:23:17,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:23:17,302 INFO L87 Difference]: Start difference. First operand has 1290 states, 706 states have (on average 1.3172804532577904) internal successors, (930), 778 states have internal predecessors, (930), 463 states have call successors, (463), 94 states have call predecessors, (463), 93 states have return successors, (452), 441 states have call predecessors, (452), 452 states have call successors, (452) Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 14:23:20,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:21,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:21,137 INFO L93 Difference]: Finished difference Result 2798 states and 4072 transitions. [2022-11-23 14:23:21,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:23:21,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 36 [2022-11-23 14:23:21,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:21,174 INFO L225 Difference]: With dead ends: 2798 [2022-11-23 14:23:21,175 INFO L226 Difference]: Without dead ends: 1516 [2022-11-23 14:23:21,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:23:21,192 INFO L413 NwaCegarLoop]: 1654 mSDtfsCounter, 1537 mSDsluCounter, 2169 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 3823 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:21,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 3823 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 521 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-23 14:23:21,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2022-11-23 14:23:21,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1507. [2022-11-23 14:23:21,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 840 states have (on average 1.2726190476190475) internal successors, (1069), 912 states have internal predecessors, (1069), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:23:21,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2105 transitions. [2022-11-23 14:23:21,463 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2105 transitions. Word has length 36 [2022-11-23 14:23:21,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:21,464 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 2105 transitions. [2022-11-23 14:23:21,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 14:23:21,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2105 transitions. [2022-11-23 14:23:21,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-23 14:23:21,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:21,467 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:21,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:23:21,468 INFO L420 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 25 more)] === [2022-11-23 14:23:21,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:21,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1426779165, now seen corresponding path program 1 times [2022-11-23 14:23:21,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:21,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290862359] [2022-11-23 14:23:21,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:21,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:22,232 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:23:22,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:22,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290862359] [2022-11-23 14:23:22,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290862359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:22,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:22,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:23:22,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079301552] [2022-11-23 14:23:22,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:22,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:23:22,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:22,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:23:22,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:23:22,236 INFO L87 Difference]: Start difference. First operand 1507 states and 2105 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:23:26,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:26,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:26,400 INFO L93 Difference]: Finished difference Result 1516 states and 2116 transitions. [2022-11-23 14:23:26,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:23:26,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 41 [2022-11-23 14:23:26,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:26,413 INFO L225 Difference]: With dead ends: 1516 [2022-11-23 14:23:26,414 INFO L226 Difference]: Without dead ends: 1514 [2022-11-23 14:23:26,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:23:26,416 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 1505 mSDsluCounter, 2137 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 3761 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:26,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 3761 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-23 14:23:26,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2022-11-23 14:23:26,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1505. [2022-11-23 14:23:26,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 839 states have (on average 1.2717520858164482) internal successors, (1067), 910 states have internal predecessors, (1067), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:23:26,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2103 transitions. [2022-11-23 14:23:26,545 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2103 transitions. Word has length 41 [2022-11-23 14:23:26,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:26,546 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 2103 transitions. [2022-11-23 14:23:26,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:23:26,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2103 transitions. [2022-11-23 14:23:26,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-23 14:23:26,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:26,552 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:26,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:23:26,553 INFO L420 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 25 more)] === [2022-11-23 14:23:26,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:26,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1788606719, now seen corresponding path program 1 times [2022-11-23 14:23:26,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:26,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867021431] [2022-11-23 14:23:26,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:26,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:27,208 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:23:27,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:27,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867021431] [2022-11-23 14:23:27,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867021431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:27,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:27,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:23:27,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085753609] [2022-11-23 14:23:27,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:27,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:23:27,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:27,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:23:27,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:23:27,211 INFO L87 Difference]: Start difference. First operand 1505 states and 2103 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-23 14:23:30,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:31,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:31,333 INFO L93 Difference]: Finished difference Result 1514 states and 2114 transitions. [2022-11-23 14:23:31,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:23:31,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 46 [2022-11-23 14:23:31,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:31,345 INFO L225 Difference]: With dead ends: 1514 [2022-11-23 14:23:31,346 INFO L226 Difference]: Without dead ends: 1512 [2022-11-23 14:23:31,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:23:31,351 INFO L413 NwaCegarLoop]: 1622 mSDtfsCounter, 1502 mSDsluCounter, 2135 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 3757 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:31,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 3757 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 14:23:31,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2022-11-23 14:23:31,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1503. [2022-11-23 14:23:31,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 838 states have (on average 1.2708830548926013) internal successors, (1065), 908 states have internal predecessors, (1065), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:23:31,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 2101 transitions. [2022-11-23 14:23:31,470 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 2101 transitions. Word has length 46 [2022-11-23 14:23:31,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:31,471 INFO L495 AbstractCegarLoop]: Abstraction has 1503 states and 2101 transitions. [2022-11-23 14:23:31,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-23 14:23:31,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 2101 transitions. [2022-11-23 14:23:31,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-23 14:23:31,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:31,479 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:31,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:23:31,479 INFO L420 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 25 more)] === [2022-11-23 14:23:31,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:31,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1480668763, now seen corresponding path program 1 times [2022-11-23 14:23:31,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:31,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337424480] [2022-11-23 14:23:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:31,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:32,076 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:23:32,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:32,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337424480] [2022-11-23 14:23:32,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337424480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:32,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:32,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:23:32,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064004969] [2022-11-23 14:23:32,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:32,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:23:32,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:32,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:23:32,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:23:32,079 INFO L87 Difference]: Start difference. First operand 1503 states and 2101 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 14:23:35,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:36,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:36,067 INFO L93 Difference]: Finished difference Result 1512 states and 2112 transitions. [2022-11-23 14:23:36,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:23:36,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 51 [2022-11-23 14:23:36,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:36,078 INFO L225 Difference]: With dead ends: 1512 [2022-11-23 14:23:36,078 INFO L226 Difference]: Without dead ends: 1510 [2022-11-23 14:23:36,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:23:36,080 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 1499 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 3753 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:36,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 3753 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-23 14:23:36,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2022-11-23 14:23:36,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1501. [2022-11-23 14:23:36,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 837 states have (on average 1.2700119474313023) internal successors, (1063), 906 states have internal predecessors, (1063), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:23:36,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2099 transitions. [2022-11-23 14:23:36,250 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 2099 transitions. Word has length 51 [2022-11-23 14:23:36,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:36,251 INFO L495 AbstractCegarLoop]: Abstraction has 1501 states and 2099 transitions. [2022-11-23 14:23:36,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 14:23:36,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 2099 transitions. [2022-11-23 14:23:36,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-23 14:23:36,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:36,254 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:36,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:23:36,255 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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 25 more)] === [2022-11-23 14:23:36,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:36,255 INFO L85 PathProgramCache]: Analyzing trace with hash 754647360, now seen corresponding path program 1 times [2022-11-23 14:23:36,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:36,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407939953] [2022-11-23 14:23:36,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:36,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:36,766 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:23:36,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:36,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407939953] [2022-11-23 14:23:36,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407939953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:36,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:36,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:23:36,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023188203] [2022-11-23 14:23:36,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:36,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:23:36,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:36,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:23:36,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:23:36,769 INFO L87 Difference]: Start difference. First operand 1501 states and 2099 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 14:23:40,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:41,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:41,020 INFO L93 Difference]: Finished difference Result 1510 states and 2110 transitions. [2022-11-23 14:23:41,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:23:41,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2022-11-23 14:23:41,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:41,030 INFO L225 Difference]: With dead ends: 1510 [2022-11-23 14:23:41,031 INFO L226 Difference]: Without dead ends: 1508 [2022-11-23 14:23:41,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:23:41,033 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 1496 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 3749 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:41,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 3749 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-23 14:23:41,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2022-11-23 14:23:41,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1499. [2022-11-23 14:23:41,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 836 states have (on average 1.2691387559808613) internal successors, (1061), 904 states have internal predecessors, (1061), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:23:41,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2097 transitions. [2022-11-23 14:23:41,156 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2097 transitions. Word has length 56 [2022-11-23 14:23:41,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:41,156 INFO L495 AbstractCegarLoop]: Abstraction has 1499 states and 2097 transitions. [2022-11-23 14:23:41,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 14:23:41,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2097 transitions. [2022-11-23 14:23:41,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 14:23:41,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:41,159 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:41,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:23:41,161 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 25 more)] === [2022-11-23 14:23:41,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:41,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2012405045, now seen corresponding path program 1 times [2022-11-23 14:23:41,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:41,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662862103] [2022-11-23 14:23:41,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:41,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:41,720 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:23:41,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:41,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662862103] [2022-11-23 14:23:41,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662862103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:41,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:41,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:23:41,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897440757] [2022-11-23 14:23:41,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:41,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:23:41,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:41,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:23:41,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:23:41,724 INFO L87 Difference]: Start difference. First operand 1499 states and 2097 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:23:45,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:46,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:46,260 INFO L93 Difference]: Finished difference Result 1508 states and 2108 transitions. [2022-11-23 14:23:46,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:23:46,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2022-11-23 14:23:46,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:46,271 INFO L225 Difference]: With dead ends: 1508 [2022-11-23 14:23:46,272 INFO L226 Difference]: Without dead ends: 1506 [2022-11-23 14:23:46,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:23:46,274 INFO L413 NwaCegarLoop]: 1616 mSDtfsCounter, 1493 mSDsluCounter, 2129 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 3745 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:46,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 3745 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-23 14:23:46,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2022-11-23 14:23:46,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1497. [2022-11-23 14:23:46,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1497 states, 835 states have (on average 1.2682634730538922) internal successors, (1059), 902 states have internal predecessors, (1059), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:23:46,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2095 transitions. [2022-11-23 14:23:46,481 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2095 transitions. Word has length 61 [2022-11-23 14:23:46,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:46,482 INFO L495 AbstractCegarLoop]: Abstraction has 1497 states and 2095 transitions. [2022-11-23 14:23:46,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:23:46,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2095 transitions. [2022-11-23 14:23:46,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-23 14:23:46,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:46,484 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:46,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:23:46,484 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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 25 more)] === [2022-11-23 14:23:46,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:46,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1102868281, now seen corresponding path program 1 times [2022-11-23 14:23:46,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:46,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091881157] [2022-11-23 14:23:46,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:46,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:47,005 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:23:47,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:47,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091881157] [2022-11-23 14:23:47,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091881157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:47,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:47,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:23:47,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303639442] [2022-11-23 14:23:47,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:47,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:23:47,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:47,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:23:47,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:23:47,009 INFO L87 Difference]: Start difference. First operand 1497 states and 2095 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:23:50,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:50,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:50,722 INFO L93 Difference]: Finished difference Result 1506 states and 2106 transitions. [2022-11-23 14:23:50,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:23:50,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2022-11-23 14:23:50,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:50,734 INFO L225 Difference]: With dead ends: 1506 [2022-11-23 14:23:50,734 INFO L226 Difference]: Without dead ends: 1504 [2022-11-23 14:23:50,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:23:50,736 INFO L413 NwaCegarLoop]: 1614 mSDtfsCounter, 1490 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 3741 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:50,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 3741 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-23 14:23:50,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2022-11-23 14:23:50,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1495. [2022-11-23 14:23:50,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 834 states have (on average 1.2673860911270982) internal successors, (1057), 900 states have internal predecessors, (1057), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:23:50,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2093 transitions. [2022-11-23 14:23:50,884 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2093 transitions. Word has length 66 [2022-11-23 14:23:50,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:50,885 INFO L495 AbstractCegarLoop]: Abstraction has 1495 states and 2093 transitions. [2022-11-23 14:23:50,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:23:50,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2093 transitions. [2022-11-23 14:23:50,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-23 14:23:50,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:50,887 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:50,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:23:50,887 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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 25 more)] === [2022-11-23 14:23:50,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:50,888 INFO L85 PathProgramCache]: Analyzing trace with hash -262067197, now seen corresponding path program 1 times [2022-11-23 14:23:50,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:50,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413252676] [2022-11-23 14:23:50,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:50,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:51,430 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:23:51,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:51,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413252676] [2022-11-23 14:23:51,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413252676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:51,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:51,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:23:51,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173991932] [2022-11-23 14:23:51,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:51,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:23:51,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:51,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:23:51,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:23:51,433 INFO L87 Difference]: Start difference. First operand 1495 states and 2093 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:23:55,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:23:55,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:55,407 INFO L93 Difference]: Finished difference Result 1504 states and 2104 transitions. [2022-11-23 14:23:55,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:23:55,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-11-23 14:23:55,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:55,419 INFO L225 Difference]: With dead ends: 1504 [2022-11-23 14:23:55,419 INFO L226 Difference]: Without dead ends: 1502 [2022-11-23 14:23:55,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:23:55,423 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 1491 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 3733 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:55,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 3733 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-23 14:23:55,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2022-11-23 14:23:55,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1493. [2022-11-23 14:23:55,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 833 states have (on average 1.2665066026410565) internal successors, (1055), 898 states have internal predecessors, (1055), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:23:55,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2091 transitions. [2022-11-23 14:23:55,607 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2091 transitions. Word has length 71 [2022-11-23 14:23:55,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:55,607 INFO L495 AbstractCegarLoop]: Abstraction has 1493 states and 2091 transitions. [2022-11-23 14:23:55,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:23:55,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2091 transitions. [2022-11-23 14:23:55,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-23 14:23:55,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:55,609 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:55,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:23:55,611 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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 25 more)] === [2022-11-23 14:23:55,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:55,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1556638598, now seen corresponding path program 1 times [2022-11-23 14:23:55,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:55,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212642481] [2022-11-23 14:23:55,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:55,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:56,217 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:23:56,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:56,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212642481] [2022-11-23 14:23:56,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212642481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:56,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:56,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:23:56,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98014577] [2022-11-23 14:23:56,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:56,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:23:56,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:56,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:23:56,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:23:56,222 INFO L87 Difference]: Start difference. First operand 1493 states and 2091 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:23:59,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:00,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:00,250 INFO L93 Difference]: Finished difference Result 1502 states and 2102 transitions. [2022-11-23 14:24:00,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:24:00,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2022-11-23 14:24:00,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:00,259 INFO L225 Difference]: With dead ends: 1502 [2022-11-23 14:24:00,259 INFO L226 Difference]: Without dead ends: 1500 [2022-11-23 14:24:00,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:24:00,261 INFO L413 NwaCegarLoop]: 1610 mSDtfsCounter, 1483 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 3733 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:00,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 3733 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-23 14:24:00,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2022-11-23 14:24:00,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1491. [2022-11-23 14:24:00,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 832 states have (on average 1.265625) internal successors, (1053), 896 states have internal predecessors, (1053), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:24:00,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2089 transitions. [2022-11-23 14:24:00,393 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2089 transitions. Word has length 73 [2022-11-23 14:24:00,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:00,393 INFO L495 AbstractCegarLoop]: Abstraction has 1491 states and 2089 transitions. [2022-11-23 14:24:00,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:24:00,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2089 transitions. [2022-11-23 14:24:00,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-23 14:24:00,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:00,395 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:00,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 14:24:00,396 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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 25 more)] === [2022-11-23 14:24:00,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:00,396 INFO L85 PathProgramCache]: Analyzing trace with hash 122327603, now seen corresponding path program 1 times [2022-11-23 14:24:00,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:00,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509272672] [2022-11-23 14:24:00,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:00,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:00,860 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:24:00,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:00,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509272672] [2022-11-23 14:24:00,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509272672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:00,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:00,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:24:00,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816804038] [2022-11-23 14:24:00,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:00,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:24:00,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:00,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:24:00,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:24:00,863 INFO L87 Difference]: Start difference. First operand 1491 states and 2089 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:24:04,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:04,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:04,398 INFO L93 Difference]: Finished difference Result 1500 states and 2100 transitions. [2022-11-23 14:24:04,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:24:04,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2022-11-23 14:24:04,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:04,407 INFO L225 Difference]: With dead ends: 1500 [2022-11-23 14:24:04,407 INFO L226 Difference]: Without dead ends: 1498 [2022-11-23 14:24:04,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:24:04,409 INFO L413 NwaCegarLoop]: 1608 mSDtfsCounter, 1482 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 3729 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:04,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 3729 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-23 14:24:04,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2022-11-23 14:24:04,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1489. [2022-11-23 14:24:04,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 831 states have (on average 1.2647412755716005) internal successors, (1051), 894 states have internal predecessors, (1051), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:24:04,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2087 transitions. [2022-11-23 14:24:04,629 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2087 transitions. Word has length 78 [2022-11-23 14:24:04,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:04,630 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2087 transitions. [2022-11-23 14:24:04,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:24:04,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2087 transitions. [2022-11-23 14:24:04,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-23 14:24:04,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:04,635 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:04,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 14:24:04,635 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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 25 more)] === [2022-11-23 14:24:04,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:04,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1927249736, now seen corresponding path program 1 times [2022-11-23 14:24:04,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:04,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141495557] [2022-11-23 14:24:04,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:04,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:05,209 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:24:05,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:05,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141495557] [2022-11-23 14:24:05,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141495557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:05,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:05,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:24:05,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256322958] [2022-11-23 14:24:05,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:05,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:24:05,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:05,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:24:05,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:24:05,212 INFO L87 Difference]: Start difference. First operand 1489 states and 2087 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 14:24:09,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:09,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:09,540 INFO L93 Difference]: Finished difference Result 1498 states and 2098 transitions. [2022-11-23 14:24:09,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:24:09,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 83 [2022-11-23 14:24:09,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:09,551 INFO L225 Difference]: With dead ends: 1498 [2022-11-23 14:24:09,551 INFO L226 Difference]: Without dead ends: 1496 [2022-11-23 14:24:09,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:24:09,554 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 1479 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 3725 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:09,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 3725 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-23 14:24:09,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-11-23 14:24:09,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1487. [2022-11-23 14:24:09,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 830 states have (on average 1.263855421686747) internal successors, (1049), 892 states have internal predecessors, (1049), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:24:09,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 2085 transitions. [2022-11-23 14:24:09,697 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 2085 transitions. Word has length 83 [2022-11-23 14:24:09,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:09,698 INFO L495 AbstractCegarLoop]: Abstraction has 1487 states and 2085 transitions. [2022-11-23 14:24:09,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 14:24:09,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 2085 transitions. [2022-11-23 14:24:09,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-23 14:24:09,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:09,701 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:09,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 14:24:09,701 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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 25 more)] === [2022-11-23 14:24:09,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:09,702 INFO L85 PathProgramCache]: Analyzing trace with hash -240126018, now seen corresponding path program 1 times [2022-11-23 14:24:09,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:09,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646121496] [2022-11-23 14:24:09,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:09,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:10,227 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:24:10,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:10,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646121496] [2022-11-23 14:24:10,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646121496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:10,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:10,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:24:10,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9844604] [2022-11-23 14:24:10,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:10,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:24:10,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:10,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:24:10,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:24:10,230 INFO L87 Difference]: Start difference. First operand 1487 states and 2085 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-23 14:24:13,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:13,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:13,920 INFO L93 Difference]: Finished difference Result 1496 states and 2096 transitions. [2022-11-23 14:24:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:24:13,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2022-11-23 14:24:13,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:13,931 INFO L225 Difference]: With dead ends: 1496 [2022-11-23 14:24:13,931 INFO L226 Difference]: Without dead ends: 1494 [2022-11-23 14:24:13,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:24:13,933 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 1476 mSDsluCounter, 2117 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 3721 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:13,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 3721 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-23 14:24:13,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2022-11-23 14:24:14,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1485. [2022-11-23 14:24:14,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 829 states have (on average 1.2629674306393246) internal successors, (1047), 890 states have internal predecessors, (1047), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:24:14,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2083 transitions. [2022-11-23 14:24:14,126 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2083 transitions. Word has length 88 [2022-11-23 14:24:14,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:14,127 INFO L495 AbstractCegarLoop]: Abstraction has 1485 states and 2083 transitions. [2022-11-23 14:24:14,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-23 14:24:14,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2083 transitions. [2022-11-23 14:24:14,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-23 14:24:14,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:14,129 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:14,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 14:24:14,129 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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 25 more)] === [2022-11-23 14:24:14,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:14,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1085507144, now seen corresponding path program 1 times [2022-11-23 14:24:14,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:14,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365917326] [2022-11-23 14:24:14,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:14,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:14,604 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:24:14,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:14,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365917326] [2022-11-23 14:24:14,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365917326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:14,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:14,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:24:14,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758285137] [2022-11-23 14:24:14,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:14,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:24:14,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:14,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:24:14,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:24:14,607 INFO L87 Difference]: Start difference. First operand 1485 states and 2083 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:24:15,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:18,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:18,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:18,910 INFO L93 Difference]: Finished difference Result 1494 states and 2094 transitions. [2022-11-23 14:24:18,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:24:18,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2022-11-23 14:24:18,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:18,920 INFO L225 Difference]: With dead ends: 1494 [2022-11-23 14:24:18,920 INFO L226 Difference]: Without dead ends: 1492 [2022-11-23 14:24:18,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:24:18,922 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 1473 mSDsluCounter, 2115 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 3717 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:18,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 3717 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-23 14:24:18,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2022-11-23 14:24:19,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1483. [2022-11-23 14:24:19,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 828 states have (on average 1.2620772946859904) internal successors, (1045), 888 states have internal predecessors, (1045), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:24:19,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2081 transitions. [2022-11-23 14:24:19,085 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2081 transitions. Word has length 93 [2022-11-23 14:24:19,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:19,085 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2081 transitions. [2022-11-23 14:24:19,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:24:19,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2081 transitions. [2022-11-23 14:24:19,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-23 14:24:19,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:19,088 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:19,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 14:24:19,088 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_net_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-23 14:24:19,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:19,089 INFO L85 PathProgramCache]: Analyzing trace with hash -272412104, now seen corresponding path program 1 times [2022-11-23 14:24:19,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:19,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408454819] [2022-11-23 14:24:19,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:19,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:19,598 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-23 14:24:19,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:19,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408454819] [2022-11-23 14:24:19,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408454819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:19,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:19,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:24:19,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177508615] [2022-11-23 14:24:19,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:19,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:24:19,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:19,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:24:19,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:24:19,601 INFO L87 Difference]: Start difference. First operand 1483 states and 2081 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2022-11-23 14:24:22,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:22,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:22,925 INFO L93 Difference]: Finished difference Result 2930 states and 4099 transitions. [2022-11-23 14:24:22,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:24:22,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 106 [2022-11-23 14:24:22,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:22,935 INFO L225 Difference]: With dead ends: 2930 [2022-11-23 14:24:22,935 INFO L226 Difference]: Without dead ends: 1488 [2022-11-23 14:24:22,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:24:22,942 INFO L413 NwaCegarLoop]: 1598 mSDtfsCounter, 1483 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:22,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 2111 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 297 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-11-23 14:24:22,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-11-23 14:24:23,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1479. [2022-11-23 14:24:23,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 825 states have (on average 1.2606060606060605) internal successors, (1040), 884 states have internal predecessors, (1040), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:24:23,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2076 transitions. [2022-11-23 14:24:23,104 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2076 transitions. Word has length 106 [2022-11-23 14:24:23,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:23,105 INFO L495 AbstractCegarLoop]: Abstraction has 1479 states and 2076 transitions. [2022-11-23 14:24:23,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2022-11-23 14:24:23,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2076 transitions. [2022-11-23 14:24:23,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-23 14:24:23,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:23,107 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:23,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 14:24:23,107 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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 25 more)] === [2022-11-23 14:24:23,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:23,108 INFO L85 PathProgramCache]: Analyzing trace with hash -701144290, now seen corresponding path program 1 times [2022-11-23 14:24:23,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:23,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863511546] [2022-11-23 14:24:23,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:23,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:23,589 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:24:23,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:23,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863511546] [2022-11-23 14:24:23,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863511546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:23,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:23,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:24:23,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468944112] [2022-11-23 14:24:23,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:23,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:24:23,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:23,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:24:23,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:24:23,592 INFO L87 Difference]: Start difference. First operand 1479 states and 2076 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 14:24:27,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:27,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:27,841 INFO L93 Difference]: Finished difference Result 1488 states and 2087 transitions. [2022-11-23 14:24:27,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:24:27,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2022-11-23 14:24:27,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:27,851 INFO L225 Difference]: With dead ends: 1488 [2022-11-23 14:24:27,852 INFO L226 Difference]: Without dead ends: 1486 [2022-11-23 14:24:27,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:24:27,856 INFO L413 NwaCegarLoop]: 1595 mSDtfsCounter, 1465 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 3703 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:27,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 3703 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 14:24:27,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2022-11-23 14:24:28,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1477. [2022-11-23 14:24:28,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 824 states have (on average 1.2597087378640777) internal successors, (1038), 882 states have internal predecessors, (1038), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:24:28,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2074 transitions. [2022-11-23 14:24:28,031 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2074 transitions. Word has length 98 [2022-11-23 14:24:28,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:28,032 INFO L495 AbstractCegarLoop]: Abstraction has 1477 states and 2074 transitions. [2022-11-23 14:24:28,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 14:24:28,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2074 transitions. [2022-11-23 14:24:28,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-23 14:24:28,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:28,034 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:28,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 14:24:28,035 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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 25 more)] === [2022-11-23 14:24:28,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:28,035 INFO L85 PathProgramCache]: Analyzing trace with hash 479637286, now seen corresponding path program 1 times [2022-11-23 14:24:28,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:28,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671253486] [2022-11-23 14:24:28,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:28,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:28,592 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:24:28,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:28,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671253486] [2022-11-23 14:24:28,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671253486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:28,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:28,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:24:28,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55501580] [2022-11-23 14:24:28,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:28,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:24:28,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:28,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:24:28,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:24:28,597 INFO L87 Difference]: Start difference. First operand 1477 states and 2074 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 14:24:32,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:32,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:32,438 INFO L93 Difference]: Finished difference Result 1486 states and 2085 transitions. [2022-11-23 14:24:32,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:24:32,439 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), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 103 [2022-11-23 14:24:32,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:32,448 INFO L225 Difference]: With dead ends: 1486 [2022-11-23 14:24:32,448 INFO L226 Difference]: Without dead ends: 1484 [2022-11-23 14:24:32,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:24:32,450 INFO L413 NwaCegarLoop]: 1593 mSDtfsCounter, 1462 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 3699 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:32,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 3699 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-23 14:24:32,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-11-23 14:24:32,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1475. [2022-11-23 14:24:32,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 823 states have (on average 1.2588092345078978) internal successors, (1036), 880 states have internal predecessors, (1036), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:24:32,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2072 transitions. [2022-11-23 14:24:32,640 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2072 transitions. Word has length 103 [2022-11-23 14:24:32,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:32,641 INFO L495 AbstractCegarLoop]: Abstraction has 1475 states and 2072 transitions. [2022-11-23 14:24:32,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 14:24:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2072 transitions. [2022-11-23 14:24:32,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-23 14:24:32,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:32,643 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:32,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 14:24:32,644 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-23 14:24:32,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:32,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1607526338, now seen corresponding path program 1 times [2022-11-23 14:24:32,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:32,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923058510] [2022-11-23 14:24:32,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:32,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:33,209 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-23 14:24:33,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:33,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923058510] [2022-11-23 14:24:33,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923058510] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:24:33,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21434293] [2022-11-23 14:24:33,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:33,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:24:33,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:24:33,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:24:33,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:24:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:34,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 3629 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 14:24:34,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:24:34,557 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-23 14:24:34,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:24:34,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21434293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:34,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:24:34,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-11-23 14:24:34,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547411623] [2022-11-23 14:24:34,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:34,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:24:34,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:34,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:24:34,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:24:34,562 INFO L87 Difference]: Start difference. First operand 1475 states and 2072 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2022-11-23 14:24:37,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:38,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:38,262 INFO L93 Difference]: Finished difference Result 2914 states and 4081 transitions. [2022-11-23 14:24:38,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:24:38,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 114 [2022-11-23 14:24:38,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:38,271 INFO L225 Difference]: With dead ends: 2914 [2022-11-23 14:24:38,271 INFO L226 Difference]: Without dead ends: 1480 [2022-11-23 14:24:38,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:24:38,278 INFO L413 NwaCegarLoop]: 1589 mSDtfsCounter, 1451 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:38,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 2102 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 297 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-23 14:24:38,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-11-23 14:24:38,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1471. [2022-11-23 14:24:38,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 820 states have (on average 1.2573170731707317) internal successors, (1031), 876 states have internal predecessors, (1031), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:24:38,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 2067 transitions. [2022-11-23 14:24:38,460 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 2067 transitions. Word has length 114 [2022-11-23 14:24:38,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:38,461 INFO L495 AbstractCegarLoop]: Abstraction has 1471 states and 2067 transitions. [2022-11-23 14:24:38,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2022-11-23 14:24:38,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 2067 transitions. [2022-11-23 14:24:38,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-23 14:24:38,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:38,464 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:38,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:24:38,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-23 14:24:38,677 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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 25 more)] === [2022-11-23 14:24:38,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:38,678 INFO L85 PathProgramCache]: Analyzing trace with hash 728814034, now seen corresponding path program 1 times [2022-11-23 14:24:38,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:38,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174842798] [2022-11-23 14:24:38,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:38,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:39,734 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:24:39,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:39,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174842798] [2022-11-23 14:24:39,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174842798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:39,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:39,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:24:39,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914646157] [2022-11-23 14:24:39,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:39,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:24:39,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:39,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:24:39,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:24:39,738 INFO L87 Difference]: Start difference. First operand 1471 states and 2067 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 14:24:43,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:43,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:43,825 INFO L93 Difference]: Finished difference Result 1480 states and 2078 transitions. [2022-11-23 14:24:43,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:24:43,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 108 [2022-11-23 14:24:43,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:43,835 INFO L225 Difference]: With dead ends: 1480 [2022-11-23 14:24:43,835 INFO L226 Difference]: Without dead ends: 1478 [2022-11-23 14:24:43,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:24:43,841 INFO L413 NwaCegarLoop]: 1586 mSDtfsCounter, 1454 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:43,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1461 Valid, 3685 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-23 14:24:43,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2022-11-23 14:24:44,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1469. [2022-11-23 14:24:44,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 819 states have (on average 1.2564102564102564) internal successors, (1029), 874 states have internal predecessors, (1029), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:24:44,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2065 transitions. [2022-11-23 14:24:44,093 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2065 transitions. Word has length 108 [2022-11-23 14:24:44,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:44,094 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2065 transitions. [2022-11-23 14:24:44,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 14:24:44,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2065 transitions. [2022-11-23 14:24:44,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-23 14:24:44,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:44,096 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:44,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 14:24:44,097 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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 25 more)] === [2022-11-23 14:24:44,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:44,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1643857323, now seen corresponding path program 1 times [2022-11-23 14:24:44,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:44,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437122781] [2022-11-23 14:24:44,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:44,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:44,569 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:24:44,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:44,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437122781] [2022-11-23 14:24:44,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437122781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:44,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:44,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:24:44,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042162584] [2022-11-23 14:24:44,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:44,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:24:44,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:44,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:24:44,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:24:44,573 INFO L87 Difference]: Start difference. First operand 1469 states and 2065 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-23 14:24:48,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:48,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:48,718 INFO L93 Difference]: Finished difference Result 1478 states and 2076 transitions. [2022-11-23 14:24:48,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:24:48,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 113 [2022-11-23 14:24:48,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:48,727 INFO L225 Difference]: With dead ends: 1478 [2022-11-23 14:24:48,727 INFO L226 Difference]: Without dead ends: 1476 [2022-11-23 14:24:48,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:24:48,729 INFO L413 NwaCegarLoop]: 1584 mSDtfsCounter, 1451 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 3681 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:48,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 3681 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-23 14:24:48,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2022-11-23 14:24:48,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1467. [2022-11-23 14:24:48,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 818 states have (on average 1.2555012224938875) internal successors, (1027), 872 states have internal predecessors, (1027), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:24:48,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2063 transitions. [2022-11-23 14:24:48,915 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2063 transitions. Word has length 113 [2022-11-23 14:24:48,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:48,915 INFO L495 AbstractCegarLoop]: Abstraction has 1467 states and 2063 transitions. [2022-11-23 14:24:48,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-23 14:24:48,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2063 transitions. [2022-11-23 14:24:48,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-23 14:24:48,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:48,918 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:48,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-23 14:24:48,918 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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 25 more)] === [2022-11-23 14:24:48,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:48,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1644301992, now seen corresponding path program 1 times [2022-11-23 14:24:48,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:48,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311618143] [2022-11-23 14:24:48,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:48,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:49,364 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:24:49,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:49,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311618143] [2022-11-23 14:24:49,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311618143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:49,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:49,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:24:49,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463544177] [2022-11-23 14:24:49,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:49,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:24:49,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:49,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:24:49,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:24:49,367 INFO L87 Difference]: Start difference. First operand 1467 states and 2063 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-23 14:24:52,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:53,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:53,217 INFO L93 Difference]: Finished difference Result 1476 states and 2074 transitions. [2022-11-23 14:24:53,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:24:53,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 118 [2022-11-23 14:24:53,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:53,229 INFO L225 Difference]: With dead ends: 1476 [2022-11-23 14:24:53,229 INFO L226 Difference]: Without dead ends: 1474 [2022-11-23 14:24:53,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:24:53,231 INFO L413 NwaCegarLoop]: 1582 mSDtfsCounter, 1448 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 3677 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:53,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1455 Valid, 3677 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-23 14:24:53,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-11-23 14:24:53,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1465. [2022-11-23 14:24:53,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 817 states have (on average 1.2545899632802937) internal successors, (1025), 870 states have internal predecessors, (1025), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:24:53,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 2061 transitions. [2022-11-23 14:24:53,438 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 2061 transitions. Word has length 118 [2022-11-23 14:24:53,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:53,438 INFO L495 AbstractCegarLoop]: Abstraction has 1465 states and 2061 transitions. [2022-11-23 14:24:53,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-23 14:24:53,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 2061 transitions. [2022-11-23 14:24:53,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-23 14:24:53,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:53,441 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:53,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-23 14:24:53,442 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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 25 more)] === [2022-11-23 14:24:53,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:53,442 INFO L85 PathProgramCache]: Analyzing trace with hash -636637093, now seen corresponding path program 1 times [2022-11-23 14:24:53,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:53,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444616232] [2022-11-23 14:24:53,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:53,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:53,894 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:24:53,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:53,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444616232] [2022-11-23 14:24:53,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444616232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:24:53,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:24:53,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:24:53,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099513254] [2022-11-23 14:24:53,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:24:53,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:24:53,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:53,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:24:53,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:24:53,897 INFO L87 Difference]: Start difference. First operand 1465 states and 2061 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-23 14:24:57,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:24:58,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:58,147 INFO L93 Difference]: Finished difference Result 1474 states and 2072 transitions. [2022-11-23 14:24:58,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:24:58,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 123 [2022-11-23 14:24:58,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:58,154 INFO L225 Difference]: With dead ends: 1474 [2022-11-23 14:24:58,154 INFO L226 Difference]: Without dead ends: 1472 [2022-11-23 14:24:58,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:24:58,156 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 1445 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 3673 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:58,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 3673 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 14:24:58,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-11-23 14:24:58,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1463. [2022-11-23 14:24:58,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 816 states have (on average 1.2536764705882353) internal successors, (1023), 868 states have internal predecessors, (1023), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 504 states have call predecessors, (517), 517 states have call successors, (517) [2022-11-23 14:24:58,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2059 transitions. [2022-11-23 14:24:58,405 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 2059 transitions. Word has length 123 [2022-11-23 14:24:58,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:58,406 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 2059 transitions. [2022-11-23 14:24:58,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-23 14:24:58,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 2059 transitions. [2022-11-23 14:24:58,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-23 14:24:58,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:58,409 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:58,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-23 14:24:58,409 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-23 14:24:58,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:58,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1135459803, now seen corresponding path program 1 times [2022-11-23 14:24:58,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:58,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177806322] [2022-11-23 14:24:58,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:58,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:59,341 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-23 14:24:59,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:59,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177806322] [2022-11-23 14:24:59,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177806322] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:24:59,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998250740] [2022-11-23 14:24:59,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:59,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:24:59,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:24:59,344 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:24:59,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:25:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:00,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 3894 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 14:25:00,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:25:00,682 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-23 14:25:00,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:25:00,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998250740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:00,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:25:00,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2022-11-23 14:25:00,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971103257] [2022-11-23 14:25:00,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:00,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:25:00,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:00,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:25:00,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:25:00,685 INFO L87 Difference]: Start difference. First operand 1463 states and 2059 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-23 14:25:05,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:06,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:06,267 INFO L93 Difference]: Finished difference Result 2893 states and 4094 transitions. [2022-11-23 14:25:06,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:25:06,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 139 [2022-11-23 14:25:06,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:06,275 INFO L225 Difference]: With dead ends: 2893 [2022-11-23 14:25:06,275 INFO L226 Difference]: Without dead ends: 1471 [2022-11-23 14:25:06,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:25:06,281 INFO L413 NwaCegarLoop]: 1516 mSDtfsCounter, 2 mSDsluCounter, 4537 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6053 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:06,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6053 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 902 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-23 14:25:06,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2022-11-23 14:25:06,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1467. [2022-11-23 14:25:06,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 819 states have (on average 1.2527472527472527) internal successors, (1026), 871 states have internal predecessors, (1026), 519 states have call successors, (519), 123 states have call predecessors, (519), 123 states have return successors, (523), 505 states have call predecessors, (523), 517 states have call successors, (523) [2022-11-23 14:25:06,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2068 transitions. [2022-11-23 14:25:06,446 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2068 transitions. Word has length 139 [2022-11-23 14:25:06,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:06,447 INFO L495 AbstractCegarLoop]: Abstraction has 1467 states and 2068 transitions. [2022-11-23 14:25:06,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-23 14:25:06,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2068 transitions. [2022-11-23 14:25:06,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-23 14:25:06,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:06,449 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:06,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:25:06,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-23 14:25:06,664 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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 25 more)] === [2022-11-23 14:25:06,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:06,665 INFO L85 PathProgramCache]: Analyzing trace with hash 341189496, now seen corresponding path program 1 times [2022-11-23 14:25:06,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:06,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781841114] [2022-11-23 14:25:06,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:06,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:07,107 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:25:07,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:07,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781841114] [2022-11-23 14:25:07,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781841114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:07,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:07,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:25:07,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976192533] [2022-11-23 14:25:07,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:07,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:25:07,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:07,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:25:07,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:25:07,110 INFO L87 Difference]: Start difference. First operand 1467 states and 2068 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-23 14:25:11,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:11,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:11,627 INFO L93 Difference]: Finished difference Result 1476 states and 2079 transitions. [2022-11-23 14:25:11,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:25:11,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 128 [2022-11-23 14:25:11,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:11,634 INFO L225 Difference]: With dead ends: 1476 [2022-11-23 14:25:11,634 INFO L226 Difference]: Without dead ends: 1474 [2022-11-23 14:25:11,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:25:11,635 INFO L413 NwaCegarLoop]: 1578 mSDtfsCounter, 1442 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 3669 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:11,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 3669 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-23 14:25:11,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-11-23 14:25:11,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1465. [2022-11-23 14:25:11,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 818 states have (on average 1.2518337408312958) internal successors, (1024), 869 states have internal predecessors, (1024), 519 states have call successors, (519), 123 states have call predecessors, (519), 123 states have return successors, (523), 505 states have call predecessors, (523), 517 states have call successors, (523) [2022-11-23 14:25:11,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 2066 transitions. [2022-11-23 14:25:11,857 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 2066 transitions. Word has length 128 [2022-11-23 14:25:11,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:11,858 INFO L495 AbstractCegarLoop]: Abstraction has 1465 states and 2066 transitions. [2022-11-23 14:25:11,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-23 14:25:11,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 2066 transitions. [2022-11-23 14:25:11,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-23 14:25:11,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:11,861 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:11,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-23 14:25:11,861 INFO L420 AbstractCegarLoop]: === Iteration 24 === 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 25 more)] === [2022-11-23 14:25:11,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:11,862 INFO L85 PathProgramCache]: Analyzing trace with hash -967463382, now seen corresponding path program 1 times [2022-11-23 14:25:11,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:11,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800789850] [2022-11-23 14:25:11,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:11,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:12,375 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:25:12,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:12,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800789850] [2022-11-23 14:25:12,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800789850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:12,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:12,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:25:12,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426750290] [2022-11-23 14:25:12,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:12,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:25:12,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:12,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:25:12,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:25:12,378 INFO L87 Difference]: Start difference. First operand 1465 states and 2066 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 14:25:13,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:16,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:16,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:16,846 INFO L93 Difference]: Finished difference Result 1474 states and 2077 transitions. [2022-11-23 14:25:16,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:25:16,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 133 [2022-11-23 14:25:16,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:16,853 INFO L225 Difference]: With dead ends: 1474 [2022-11-23 14:25:16,853 INFO L226 Difference]: Without dead ends: 1347 [2022-11-23 14:25:16,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:25:16,857 INFO L413 NwaCegarLoop]: 1577 mSDtfsCounter, 1439 mSDsluCounter, 2090 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1444 SdHoareTripleChecker+Valid, 3667 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:16,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1444 Valid, 3667 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-23 14:25:16,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2022-11-23 14:25:16,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1338. [2022-11-23 14:25:16,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 753 states have (on average 1.2695883134130146) internal successors, (956), 802 states have internal predecessors, (956), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 465 states have call predecessors, (483), 477 states have call successors, (483) [2022-11-23 14:25:17,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1916 transitions. [2022-11-23 14:25:17,002 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1916 transitions. Word has length 133 [2022-11-23 14:25:17,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:17,002 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 1916 transitions. [2022-11-23 14:25:17,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 14:25:17,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1916 transitions. [2022-11-23 14:25:17,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-23 14:25:17,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:17,006 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:17,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-23 14:25:17,007 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-23 14:25:17,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:17,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1474063305, now seen corresponding path program 1 times [2022-11-23 14:25:17,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:17,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336946087] [2022-11-23 14:25:17,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:17,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:18,413 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2022-11-23 14:25:18,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:18,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336946087] [2022-11-23 14:25:18,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336946087] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:25:18,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480988464] [2022-11-23 14:25:18,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:18,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:25:18,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:25:18,415 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:25:18,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:25:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:19,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 4148 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-23 14:25:19,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:25:19,943 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2022-11-23 14:25:19,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:25:19,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480988464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:19,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:25:19,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2022-11-23 14:25:19,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991216237] [2022-11-23 14:25:19,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:19,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:25:19,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:19,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:25:19,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:25:19,946 INFO L87 Difference]: Start difference. First operand 1338 states and 1916 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-23 14:25:24,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:24,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:24,987 INFO L93 Difference]: Finished difference Result 2663 states and 3845 transitions. [2022-11-23 14:25:24,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:25:24,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 196 [2022-11-23 14:25:24,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:24,992 INFO L225 Difference]: With dead ends: 2663 [2022-11-23 14:25:24,992 INFO L226 Difference]: Without dead ends: 1344 [2022-11-23 14:25:24,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:25:25,000 INFO L413 NwaCegarLoop]: 1390 mSDtfsCounter, 2 mSDsluCounter, 4157 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5547 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:25,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5547 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 815 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-23 14:25:25,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2022-11-23 14:25:25,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1340. [2022-11-23 14:25:25,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 755 states have (on average 1.2688741721854304) internal successors, (958), 803 states have internal predecessors, (958), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 466 states have call predecessors, (483), 477 states have call successors, (483) [2022-11-23 14:25:25,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1918 transitions. [2022-11-23 14:25:25,211 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1918 transitions. Word has length 196 [2022-11-23 14:25:25,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:25,212 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 1918 transitions. [2022-11-23 14:25:25,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-23 14:25:25,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1918 transitions. [2022-11-23 14:25:25,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-23 14:25:25,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:25,215 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 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] [2022-11-23 14:25:25,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:25:25,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-23 14:25:25,428 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-23 14:25:25,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:25,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1700765207, now seen corresponding path program 1 times [2022-11-23 14:25:25,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:25,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743042529] [2022-11-23 14:25:25,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:25,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:27,267 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-11-23 14:25:27,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:27,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743042529] [2022-11-23 14:25:27,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743042529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:27,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:27,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:25:27,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680218759] [2022-11-23 14:25:27,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:27,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:25:27,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:27,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:25:27,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:25:27,270 INFO L87 Difference]: Start difference. First operand 1340 states and 1918 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 14:25:31,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:32,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:32,256 INFO L93 Difference]: Finished difference Result 2665 states and 3843 transitions. [2022-11-23 14:25:32,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:25:32,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 165 [2022-11-23 14:25:32,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:32,262 INFO L225 Difference]: With dead ends: 2665 [2022-11-23 14:25:32,262 INFO L226 Difference]: Without dead ends: 1344 [2022-11-23 14:25:32,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:25:32,266 INFO L413 NwaCegarLoop]: 1384 mSDtfsCounter, 0 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5527 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:32,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5527 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 812 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-11-23 14:25:32,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2022-11-23 14:25:32,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1342. [2022-11-23 14:25:32,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 757 states have (on average 1.2681638044914134) internal successors, (960), 804 states have internal predecessors, (960), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 467 states have call predecessors, (483), 477 states have call successors, (483) [2022-11-23 14:25:32,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1920 transitions. [2022-11-23 14:25:32,464 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1920 transitions. Word has length 165 [2022-11-23 14:25:32,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:32,465 INFO L495 AbstractCegarLoop]: Abstraction has 1342 states and 1920 transitions. [2022-11-23 14:25:32,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 14:25:32,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1920 transitions. [2022-11-23 14:25:32,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-23 14:25:32,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:32,469 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:32,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-23 14:25:32,470 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-23 14:25:32,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:32,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1683060701, now seen corresponding path program 2 times [2022-11-23 14:25:32,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:32,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119034769] [2022-11-23 14:25:32,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:32,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:33,745 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2022-11-23 14:25:33,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:33,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119034769] [2022-11-23 14:25:33,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119034769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:33,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:33,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:25:33,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551593831] [2022-11-23 14:25:33,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:33,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:25:33,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:33,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:25:33,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:25:33,747 INFO L87 Difference]: Start difference. First operand 1342 states and 1920 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-23 14:25:39,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:40,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:40,610 INFO L93 Difference]: Finished difference Result 1351 states and 1931 transitions. [2022-11-23 14:25:40,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:25:40,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 222 [2022-11-23 14:25:40,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:40,616 INFO L225 Difference]: With dead ends: 1351 [2022-11-23 14:25:40,617 INFO L226 Difference]: Without dead ends: 1349 [2022-11-23 14:25:40,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:25:40,618 INFO L413 NwaCegarLoop]: 1450 mSDtfsCounter, 1284 mSDsluCounter, 4195 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 5645 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:40,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 5645 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1536 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-23 14:25:40,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2022-11-23 14:25:40,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1342. [2022-11-23 14:25:40,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 757 states have (on average 1.2668428005284016) internal successors, (959), 804 states have internal predecessors, (959), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 467 states have call predecessors, (483), 477 states have call successors, (483) [2022-11-23 14:25:40,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1919 transitions. [2022-11-23 14:25:40,816 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1919 transitions. Word has length 222 [2022-11-23 14:25:40,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:40,817 INFO L495 AbstractCegarLoop]: Abstraction has 1342 states and 1919 transitions. [2022-11-23 14:25:40,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-23 14:25:40,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1919 transitions. [2022-11-23 14:25:40,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-23 14:25:40,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:40,821 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:40,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-23 14:25:40,821 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting kzallocErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-23 14:25:40,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:40,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1767562018, now seen corresponding path program 1 times [2022-11-23 14:25:40,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:40,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312413790] [2022-11-23 14:25:40,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:40,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:41,187 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2022-11-23 14:25:41,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:41,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312413790] [2022-11-23 14:25:41,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312413790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:41,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:41,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:25:41,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098353495] [2022-11-23 14:25:41,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:41,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:25:41,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:41,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:25:41,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:25:41,191 INFO L87 Difference]: Start difference. First operand 1342 states and 1919 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 14:25:44,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:44,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:44,352 INFO L93 Difference]: Finished difference Result 2668 states and 3848 transitions. [2022-11-23 14:25:44,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:25:44,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 181 [2022-11-23 14:25:44,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:44,359 INFO L225 Difference]: With dead ends: 2668 [2022-11-23 14:25:44,360 INFO L226 Difference]: Without dead ends: 1345 [2022-11-23 14:25:44,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:25:44,367 INFO L413 NwaCegarLoop]: 1451 mSDtfsCounter, 1271 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:44,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 1962 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-11-23 14:25:44,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2022-11-23 14:25:44,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1340. [2022-11-23 14:25:44,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 755 states have (on average 1.2649006622516556) internal successors, (955), 802 states have internal predecessors, (955), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 467 states have call predecessors, (483), 477 states have call successors, (483) [2022-11-23 14:25:44,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1915 transitions. [2022-11-23 14:25:44,647 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1915 transitions. Word has length 181 [2022-11-23 14:25:44,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:44,647 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 1915 transitions. [2022-11-23 14:25:44,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 14:25:44,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1915 transitions. [2022-11-23 14:25:44,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2022-11-23 14:25:44,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:44,667 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 15, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:44,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-23 14:25:44,667 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_mutex__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 25 more)] === [2022-11-23 14:25:44,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:44,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1906203432, now seen corresponding path program 1 times [2022-11-23 14:25:44,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:44,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835220034] [2022-11-23 14:25:44,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:44,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 4299 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4299 trivial. 0 not checked. [2022-11-23 14:25:46,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:46,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835220034] [2022-11-23 14:25:46,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835220034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:46,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:46,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:25:46,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492160607] [2022-11-23 14:25:46,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:46,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:25:46,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:46,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:25:46,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:25:46,260 INFO L87 Difference]: Start difference. First operand 1340 states and 1915 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-23 14:25:47,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:51,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:51,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:51,540 INFO L93 Difference]: Finished difference Result 1422 states and 2022 transitions. [2022-11-23 14:25:51,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:25:51,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 477 [2022-11-23 14:25:51,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:51,548 INFO L225 Difference]: With dead ends: 1422 [2022-11-23 14:25:51,548 INFO L226 Difference]: Without dead ends: 1420 [2022-11-23 14:25:51,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:25:51,550 INFO L413 NwaCegarLoop]: 1447 mSDtfsCounter, 1142 mSDsluCounter, 3462 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 4909 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:51,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 4909 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 682 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-23 14:25:51,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2022-11-23 14:25:51,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1415. [2022-11-23 14:25:51,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 798 states have (on average 1.2644110275689222) internal successors, (1009), 847 states have internal predecessors, (1009), 498 states have call successors, (498), 115 states have call predecessors, (498), 116 states have return successors, (504), 488 states have call predecessors, (504), 498 states have call successors, (504) [2022-11-23 14:25:51,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 2011 transitions. [2022-11-23 14:25:51,766 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 2011 transitions. Word has length 477 [2022-11-23 14:25:51,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:51,767 INFO L495 AbstractCegarLoop]: Abstraction has 1415 states and 2011 transitions. [2022-11-23 14:25:51,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-23 14:25:51,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 2011 transitions. [2022-11-23 14:25:51,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2022-11-23 14:25:51,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:51,784 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 13, 13, 10, 8, 8, 8, 8, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-23 14:25:51,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-23 14:25:51,785 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-23 14:25:51,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:51,785 INFO L85 PathProgramCache]: Analyzing trace with hash 399847896, now seen corresponding path program 1 times [2022-11-23 14:25:51,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:51,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073149120] [2022-11-23 14:25:51,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:51,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:53,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3779 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3765 trivial. 0 not checked. [2022-11-23 14:25:53,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:53,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073149120] [2022-11-23 14:25:53,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073149120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:53,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:53,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:25:53,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503999928] [2022-11-23 14:25:53,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:53,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:25:53,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:53,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:25:53,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:25:53,181 INFO L87 Difference]: Start difference. First operand 1415 states and 2011 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-23 14:25:58,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:58,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:58,734 INFO L93 Difference]: Finished difference Result 2998 states and 4328 transitions. [2022-11-23 14:25:58,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:25:58,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 755 [2022-11-23 14:25:58,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:58,744 INFO L225 Difference]: With dead ends: 2998 [2022-11-23 14:25:58,745 INFO L226 Difference]: Without dead ends: 1602 [2022-11-23 14:25:58,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:25:58,754 INFO L413 NwaCegarLoop]: 1423 mSDtfsCounter, 126 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 4216 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:58,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 4216 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 625 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-23 14:25:58,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2022-11-23 14:25:59,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1447. [2022-11-23 14:25:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1447 states, 819 states have (on average 1.2661782661782661) internal successors, (1037), 870 states have internal predecessors, (1037), 509 states have call successors, (509), 115 states have call predecessors, (509), 116 states have return successors, (515), 499 states have call predecessors, (515), 509 states have call successors, (515) [2022-11-23 14:25:59,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 2061 transitions. [2022-11-23 14:25:59,044 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 2061 transitions. Word has length 755 [2022-11-23 14:25:59,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:59,045 INFO L495 AbstractCegarLoop]: Abstraction has 1447 states and 2061 transitions. [2022-11-23 14:25:59,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-23 14:25:59,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 2061 transitions. [2022-11-23 14:25:59,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2022-11-23 14:25:59,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:59,063 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 17, 17, 15, 8, 8, 8, 8, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:59,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-23 14:25:59,065 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-23 14:25:59,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:59,066 INFO L85 PathProgramCache]: Analyzing trace with hash -464693247, now seen corresponding path program 1 times [2022-11-23 14:25:59,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:59,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129402577] [2022-11-23 14:25:59,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:59,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:00,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4218 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 4191 trivial. 0 not checked. [2022-11-23 14:26:00,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:26:00,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129402577] [2022-11-23 14:26:00,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129402577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:26:00,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:26:00,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:26:00,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101450577] [2022-11-23 14:26:00,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:26:00,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:26:00,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:26:00,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:26:00,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:26:00,401 INFO L87 Difference]: Start difference. First operand 1447 states and 2061 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2022-11-23 14:26:04,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:04,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:26:04,699 INFO L93 Difference]: Finished difference Result 2881 states and 4142 transitions. [2022-11-23 14:26:04,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:26:04,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) Word has length 878 [2022-11-23 14:26:04,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:26:04,709 INFO L225 Difference]: With dead ends: 2881 [2022-11-23 14:26:04,709 INFO L226 Difference]: Without dead ends: 1453 [2022-11-23 14:26:04,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:26:04,718 INFO L413 NwaCegarLoop]: 1382 mSDtfsCounter, 1 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2761 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:26:04,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2761 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 14:26:04,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-11-23 14:26:04,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1449. [2022-11-23 14:26:04,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 821 states have (on average 1.2655298416565164) internal successors, (1039), 872 states have internal predecessors, (1039), 509 states have call successors, (509), 115 states have call predecessors, (509), 116 states have return successors, (515), 499 states have call predecessors, (515), 509 states have call successors, (515) [2022-11-23 14:26:04,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 2063 transitions. [2022-11-23 14:26:04,979 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 2063 transitions. Word has length 878 [2022-11-23 14:26:04,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:26:04,980 INFO L495 AbstractCegarLoop]: Abstraction has 1449 states and 2063 transitions. [2022-11-23 14:26:04,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2022-11-23 14:26:04,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 2063 transitions. [2022-11-23 14:26:04,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 902 [2022-11-23 14:26:04,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:26:04,999 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 17, 17, 15, 8, 8, 8, 8, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:26:04,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-23 14:26:04,999 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-23 14:26:05,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:26:05,000 INFO L85 PathProgramCache]: Analyzing trace with hash -117260633, now seen corresponding path program 1 times [2022-11-23 14:26:05,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:26:05,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008580573] [2022-11-23 14:26:05,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:05,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:26:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:06,283 INFO L134 CoverageAnalysis]: Checked inductivity of 4555 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 4527 trivial. 0 not checked. [2022-11-23 14:26:06,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:26:06,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008580573] [2022-11-23 14:26:06,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008580573] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:26:06,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419013741] [2022-11-23 14:26:06,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:06,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:26:06,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:26:06,286 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:26:06,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d056b2bd-aa89-4aec-bf1a-23c3de2784fe/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:26:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:08,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 8798 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:26:08,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:26:09,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4555 backedges. 1443 proven. 1 refuted. 0 times theorem prover too weak. 3111 trivial. 0 not checked. [2022-11-23 14:26:09,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:26:10,733 INFO L134 CoverageAnalysis]: Checked inductivity of 4555 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 4527 trivial. 0 not checked. [2022-11-23 14:26:10,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419013741] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:26:10,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [893994562] [2022-11-23 14:26:10,785 INFO L159 IcfgInterpreter]: Started Sifa with 250 locations of interest [2022-11-23 14:26:10,785 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:26:10,791 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:26:10,797 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:26:10,797 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:26:21,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:21,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:21,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:21,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:21,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:21,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:21,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:21,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:21,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:21,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:21,284 INFO L217 Elim1Store]: Index analysis took 161 ms [2022-11-23 14:26:21,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 31 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 114 [2022-11-23 14:26:22,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:22,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:22,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:22,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:22,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:22,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 37 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 125 [2022-11-23 14:26:22,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:22,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:22,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:22,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:22,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:22,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2022-11-23 14:26:24,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 59 select indices, 59 select index equivalence classes, 1770 disjoint index pairs (out of 1711 index pairs), introduced 59 new quantified variables, introduced 0 case distinctions, treesize of input 2264 treesize of output 1938 [2022-11-23 14:26:29,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:29,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:29,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:29,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:29,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:29,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:29,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:29,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:29,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:29,304 INFO L217 Elim1Store]: Index analysis took 285 ms [2022-11-23 14:26:29,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 26 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 105 [2022-11-23 14:26:30,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:30,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:30,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:30,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:30,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:30,241 INFO L217 Elim1Store]: Index analysis took 107 ms [2022-11-23 14:26:30,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2022-11-23 14:26:30,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:30,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:30,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:30,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:30,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:31,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 80 [2022-11-23 14:26:31,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:31,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:31,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:31,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:31,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:31,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 22 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 98 [2022-11-23 14:26:31,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:31,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:31,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:32,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:32,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:32,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2022-11-23 14:26:32,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:32,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:32,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:32,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:32,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:26:32,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2022-11-23 14:33:55,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-23 14:33:55,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:35:23,524 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-23 14:35:23,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 16039 treesize of output 16037 [2022-11-23 14:35:29,217 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 14:35:29,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16034 treesize of output 16034