./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--sm_ftl.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 66513110c58cbfd09ef37c44af5b1d4813bd7e87bef538ae0fb21419e856753a --- 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-6b4ec56 [2022-11-20 11:30:55,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:30:55,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:30:55,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:30:55,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:30:55,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:30:55,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:30:55,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:30:55,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:30:55,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:30:55,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:30:55,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:30:55,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:30:55,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:30:55,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:30:55,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:30:55,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:30:55,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:30:55,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:30:55,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:30:55,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:30:55,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:30:55,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:30:55,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:30:55,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:30:55,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:30:55,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:30:55,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:30:55,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:30:55,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:30:55,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:30:55,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:30:55,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:30:55,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:30:55,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:30:55,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:30:55,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:30:55,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:30:55,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:30:55,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:30:55,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:30:55,554 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:30:55,594 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:30:55,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:30:55,595 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:30:55,595 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:30:55,596 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:30:55,596 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:30:55,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:30:55,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:30:55,597 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:30:55,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:30:55,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:30:55,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:30:55,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:30:55,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:30:55,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:30:55,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:30:55,599 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:30:55,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:30:55,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:30:55,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:30:55,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:30:55,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:30:55,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:30:55,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:30:55,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:30:55,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:30:55,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:30:55,601 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:30:55,602 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:30:55,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:30:55,602 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66513110c58cbfd09ef37c44af5b1d4813bd7e87bef538ae0fb21419e856753a [2022-11-20 11:30:55,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:30:55,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:30:55,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:30:55,864 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:30:55,865 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:30:55,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i [2022-11-20 11:30:59,022 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:30:59,640 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:30:59,641 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i [2022-11-20 11:30:59,675 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/data/4d472e709/98ba02ac341d40aca1df123a2dd0729a/FLAGb0915c591 [2022-11-20 11:30:59,689 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/data/4d472e709/98ba02ac341d40aca1df123a2dd0729a [2022-11-20 11:30:59,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:30:59,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:30:59,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:30:59,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:30:59,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:30:59,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:59" (1/1) ... [2022-11-20 11:30:59,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea9b6a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:59, skipping insertion in model container [2022-11-20 11:30:59,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:59" (1/1) ... [2022-11-20 11:30:59,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:30:59,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:31:02,535 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[260078,260091] [2022-11-20 11:31:02,539 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[260223,260236] [2022-11-20 11:31:02,540 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[260369,260382] [2022-11-20 11:31:02,541 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[260534,260547] [2022-11-20 11:31:02,542 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[260692,260705] [2022-11-20 11:31:02,542 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[260850,260863] [2022-11-20 11:31:02,543 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[261008,261021] [2022-11-20 11:31:02,543 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[261168,261181] [2022-11-20 11:31:02,544 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[261327,261340] [2022-11-20 11:31:02,544 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[261466,261479] [2022-11-20 11:31:02,545 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[261608,261621] [2022-11-20 11:31:02,545 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[261757,261770] [2022-11-20 11:31:02,546 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[261896,261909] [2022-11-20 11:31:02,546 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[262051,262064] [2022-11-20 11:31:02,547 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[262211,262224] [2022-11-20 11:31:02,548 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[262362,262375] [2022-11-20 11:31:02,548 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[262513,262526] [2022-11-20 11:31:02,549 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[262665,262678] [2022-11-20 11:31:02,549 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[262814,262827] [2022-11-20 11:31:02,550 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[262962,262975] [2022-11-20 11:31:02,550 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[263119,263132] [2022-11-20 11:31:02,551 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[263268,263281] [2022-11-20 11:31:02,551 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[263424,263437] [2022-11-20 11:31:02,552 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[263577,263590] [2022-11-20 11:31:02,552 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[263723,263736] [2022-11-20 11:31:02,553 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[263866,263879] [2022-11-20 11:31:02,553 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[264018,264031] [2022-11-20 11:31:02,554 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[264164,264177] [2022-11-20 11:31:02,555 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[264309,264322] [2022-11-20 11:31:02,555 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[264463,264476] [2022-11-20 11:31:02,556 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[264614,264627] [2022-11-20 11:31:02,556 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[264769,264782] [2022-11-20 11:31:02,557 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[264921,264934] [2022-11-20 11:31:02,557 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[265076,265089] [2022-11-20 11:31:02,558 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[265240,265253] [2022-11-20 11:31:02,559 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[265396,265409] [2022-11-20 11:31:02,559 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[265560,265573] [2022-11-20 11:31:02,560 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[265702,265715] [2022-11-20 11:31:02,560 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[265860,265873] [2022-11-20 11:31:02,561 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[266027,266040] [2022-11-20 11:31:02,561 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[266186,266199] [2022-11-20 11:31:02,562 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[266345,266358] [2022-11-20 11:31:02,562 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[266494,266507] [2022-11-20 11:31:02,563 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[266641,266654] [2022-11-20 11:31:02,563 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[266780,266793] [2022-11-20 11:31:02,564 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[266943,266956] [2022-11-20 11:31:02,564 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[267109,267122] [2022-11-20 11:31:02,565 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[267273,267286] [2022-11-20 11:31:02,565 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[267438,267451] [2022-11-20 11:31:02,566 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[267603,267616] [2022-11-20 11:31:02,566 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[267769,267782] [2022-11-20 11:31:02,567 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[267934,267947] [2022-11-20 11:31:02,568 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[268101,268114] [2022-11-20 11:31:02,568 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[268261,268274] [2022-11-20 11:31:02,569 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[268423,268436] [2022-11-20 11:31:02,569 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[268582,268595] [2022-11-20 11:31:02,570 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[268728,268741] [2022-11-20 11:31:02,570 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[268871,268884] [2022-11-20 11:31:02,571 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[269015,269028] [2022-11-20 11:31:02,571 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[269158,269171] [2022-11-20 11:31:02,572 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[269302,269315] [2022-11-20 11:31:02,572 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[269443,269456] [2022-11-20 11:31:02,573 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[269581,269594] [2022-11-20 11:31:02,573 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[269739,269752] [2022-11-20 11:31:02,574 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[269898,269911] [2022-11-20 11:31:02,574 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[270054,270067] [2022-11-20 11:31:02,575 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[270203,270216] [2022-11-20 11:31:02,575 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[270355,270368] [2022-11-20 11:31:02,576 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[270506,270519] [2022-11-20 11:31:02,576 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[270655,270668] [2022-11-20 11:31:02,577 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[270807,270820] [2022-11-20 11:31:02,577 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[270955,270968] [2022-11-20 11:31:02,577 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[271108,271121] [2022-11-20 11:31:02,578 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[271259,271272] [2022-11-20 11:31:02,578 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[271409,271422] [2022-11-20 11:31:02,579 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[271556,271569] [2022-11-20 11:31:02,579 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[271707,271720] [2022-11-20 11:31:02,580 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[271858,271871] [2022-11-20 11:31:02,581 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[272006,272019] [2022-11-20 11:31:02,581 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[272172,272185] [2022-11-20 11:31:02,582 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[272341,272354] [2022-11-20 11:31:02,582 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[272508,272521] [2022-11-20 11:31:02,583 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[272676,272689] [2022-11-20 11:31:02,583 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[272826,272839] [2022-11-20 11:31:02,584 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[272973,272986] [2022-11-20 11:31:02,584 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[273134,273147] [2022-11-20 11:31:02,585 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[273304,273317] [2022-11-20 11:31:02,585 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[273466,273479] [2022-11-20 11:31:02,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:31:02,616 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:31:02,918 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[260078,260091] [2022-11-20 11:31:02,919 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[260223,260236] [2022-11-20 11:31:02,920 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[260369,260382] [2022-11-20 11:31:02,921 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[260534,260547] [2022-11-20 11:31:02,922 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[260692,260705] [2022-11-20 11:31:02,923 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[260850,260863] [2022-11-20 11:31:02,924 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[261008,261021] [2022-11-20 11:31:02,925 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[261168,261181] [2022-11-20 11:31:02,926 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[261327,261340] [2022-11-20 11:31:02,927 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[261466,261479] [2022-11-20 11:31:02,927 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[261608,261621] [2022-11-20 11:31:02,928 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[261757,261770] [2022-11-20 11:31:02,928 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[261896,261909] [2022-11-20 11:31:02,929 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[262051,262064] [2022-11-20 11:31:02,931 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[262211,262224] [2022-11-20 11:31:02,932 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[262362,262375] [2022-11-20 11:31:02,932 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[262513,262526] [2022-11-20 11:31:02,932 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[262665,262678] [2022-11-20 11:31:02,933 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[262814,262827] [2022-11-20 11:31:02,934 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[262962,262975] [2022-11-20 11:31:02,934 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[263119,263132] [2022-11-20 11:31:02,935 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[263268,263281] [2022-11-20 11:31:02,935 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[263424,263437] [2022-11-20 11:31:02,936 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[263577,263590] [2022-11-20 11:31:02,936 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[263723,263736] [2022-11-20 11:31:02,937 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[263866,263879] [2022-11-20 11:31:02,937 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[264018,264031] [2022-11-20 11:31:02,938 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[264164,264177] [2022-11-20 11:31:02,939 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[264309,264322] [2022-11-20 11:31:02,940 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[264463,264476] [2022-11-20 11:31:02,940 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[264614,264627] [2022-11-20 11:31:02,941 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[264769,264782] [2022-11-20 11:31:02,941 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[264921,264934] [2022-11-20 11:31:02,942 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[265076,265089] [2022-11-20 11:31:02,943 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[265240,265253] [2022-11-20 11:31:02,944 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[265396,265409] [2022-11-20 11:31:02,946 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[265560,265573] [2022-11-20 11:31:02,946 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[265702,265715] [2022-11-20 11:31:02,947 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[265860,265873] [2022-11-20 11:31:02,947 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[266027,266040] [2022-11-20 11:31:02,948 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[266186,266199] [2022-11-20 11:31:02,949 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[266345,266358] [2022-11-20 11:31:02,955 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[266494,266507] [2022-11-20 11:31:02,956 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[266641,266654] [2022-11-20 11:31:02,957 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[266780,266793] [2022-11-20 11:31:02,958 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[266943,266956] [2022-11-20 11:31:02,958 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[267109,267122] [2022-11-20 11:31:02,959 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[267273,267286] [2022-11-20 11:31:02,959 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[267438,267451] [2022-11-20 11:31:02,959 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[267603,267616] [2022-11-20 11:31:02,960 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[267769,267782] [2022-11-20 11:31:02,960 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[267934,267947] [2022-11-20 11:31:02,962 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[268101,268114] [2022-11-20 11:31:02,962 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[268261,268274] [2022-11-20 11:31:02,963 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[268423,268436] [2022-11-20 11:31:02,963 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[268582,268595] [2022-11-20 11:31:02,964 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[268728,268741] [2022-11-20 11:31:02,964 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[268871,268884] [2022-11-20 11:31:02,966 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[269015,269028] [2022-11-20 11:31:02,967 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[269158,269171] [2022-11-20 11:31:02,967 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[269302,269315] [2022-11-20 11:31:02,968 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[269443,269456] [2022-11-20 11:31:02,969 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[269581,269594] [2022-11-20 11:31:02,970 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[269739,269752] [2022-11-20 11:31:02,977 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[269898,269911] [2022-11-20 11:31:02,979 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[270054,270067] [2022-11-20 11:31:02,979 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[270203,270216] [2022-11-20 11:31:02,979 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[270355,270368] [2022-11-20 11:31:02,980 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[270506,270519] [2022-11-20 11:31:02,980 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[270655,270668] [2022-11-20 11:31:02,981 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[270807,270820] [2022-11-20 11:31:02,982 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[270955,270968] [2022-11-20 11:31:02,982 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[271108,271121] [2022-11-20 11:31:02,988 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[271259,271272] [2022-11-20 11:31:02,988 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[271409,271422] [2022-11-20 11:31:02,989 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[271556,271569] [2022-11-20 11:31:02,989 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[271707,271720] [2022-11-20 11:31:02,989 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[271858,271871] [2022-11-20 11:31:02,990 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[272006,272019] [2022-11-20 11:31:02,990 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[272172,272185] [2022-11-20 11:31:02,990 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[272341,272354] [2022-11-20 11:31:02,991 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[272508,272521] [2022-11-20 11:31:02,991 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[272676,272689] [2022-11-20 11:31:02,991 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[272826,272839] [2022-11-20 11:31:02,992 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[272973,272986] [2022-11-20 11:31:02,992 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[273134,273147] [2022-11-20 11:31:02,993 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[273304,273317] [2022-11-20 11:31:02,993 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_69f7e8cf-080d-4143-a72e-724d2d2ca93d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i[273466,273479] [2022-11-20 11:31:02,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:31:03,195 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:31:03,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:03 WrapperNode [2022-11-20 11:31:03,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:31:03,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:31:03,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:31:03,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:31:03,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:03" (1/1) ... [2022-11-20 11:31:03,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:03" (1/1) ... [2022-11-20 11:31:03,478 INFO L138 Inliner]: procedures = 498, calls = 1426, calls flagged for inlining = 214, calls inlined = 135, statements flattened = 3214 [2022-11-20 11:31:03,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:31:03,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:31:03,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:31:03,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:31:03,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:03" (1/1) ... [2022-11-20 11:31:03,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:03" (1/1) ... [2022-11-20 11:31:03,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:03" (1/1) ... [2022-11-20 11:31:03,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:03" (1/1) ... [2022-11-20 11:31:03,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:03" (1/1) ... [2022-11-20 11:31:03,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:03" (1/1) ... [2022-11-20 11:31:03,654 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:03" (1/1) ... [2022-11-20 11:31:03,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:03" (1/1) ... [2022-11-20 11:31:03,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:31:03,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:31:03,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:31:03,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:31:03,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:03" (1/1) ... [2022-11-20 11:31:03,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:31:03,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:03,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:31:03,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:31:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure sm_mark_block_bad [2022-11-20 11:31:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_mark_block_bad [2022-11-20 11:31:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-20 11:31:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-20 11:31:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 11:31:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 11:31:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-20 11:31:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-20 11:31:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_sm_ftl [2022-11-20 11:31:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_sm_ftl [2022-11-20 11:31:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:31:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:31:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-20 11:31:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-20 11:31:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 11:31:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 11:31:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-20 11:31:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-20 11:31:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-20 11:31:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-20 11:31:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure sm_read_lba [2022-11-20 11:31:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_read_lba [2022-11-20 11:31:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure sm_check_block [2022-11-20 11:31:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_check_block [2022-11-20 11:31:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-20 11:31:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure sm_release [2022-11-20 11:31:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_release [2022-11-20 11:31:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 11:31:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 11:31:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure sm_cache_init [2022-11-20 11:31:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_cache_init [2022-11-20 11:31:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 11:31:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 11:31:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-20 11:31:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-20 11:31:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure sm_read_sector [2022-11-20 11:31:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_read_sector [2022-11-20 11:31:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:31:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-20 11:31:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-20 11:31:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure sm_write_sector [2022-11-20 11:31:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_write_sector [2022-11-20 11:31:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure __nand_calculate_ecc [2022-11-20 11:31:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __nand_calculate_ecc [2022-11-20 11:31:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2022-11-20 11:31:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2022-11-20 11:31:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-20 11:31:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure sm_remove_dev [2022-11-20 11:31:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_remove_dev [2022-11-20 11:31:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 11:31:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-20 11:31:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-20 11:31:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 11:31:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 11:31:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_sm_ftl [2022-11-20 11:31:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_sm_ftl [2022-11-20 11:31:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-20 11:31:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-20 11:31:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:31:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-20 11:31:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-20 11:31:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-20 11:31:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-20 11:31:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure sm_recheck_media [2022-11-20 11:31:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_recheck_media [2022-11-20 11:31:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:31:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:31:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-20 11:31:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-20 11:31:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 11:31:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 11:31:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-20 11:31:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-20 11:31:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure sm_cache_put [2022-11-20 11:31:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_cache_put [2022-11-20 11:31:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure sm_read_cis [2022-11-20 11:31:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_read_cis [2022-11-20 11:31:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-20 11:31:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-20 11:31:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:31:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:31:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 11:31:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 11:31:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:31:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 11:31:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 11:31:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out [2022-11-20 11:31:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out [2022-11-20 11:31:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-20 11:31:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-20 11:31:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2022-11-20 11:31:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2022-11-20 11:31:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure sm_cache_flush [2022-11-20 11:31:03,789 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_cache_flush [2022-11-20 11:31:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:31:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:31:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 11:31:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 11:31:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure sm_get_zone [2022-11-20 11:31:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_get_zone [2022-11-20 11:31:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:31:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:31:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2022-11-20 11:31:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2022-11-20 11:31:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:31:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:31:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-20 11:31:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-20 11:31:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure sm_mkoffset [2022-11-20 11:31:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_mkoffset [2022-11-20 11:31:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:31:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:31:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure sm_get_lba [2022-11-20 11:31:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_get_lba [2022-11-20 11:31:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-20 11:31:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-20 11:31:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-20 11:31:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-20 11:31:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:31:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-20 11:31:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-20 11:31:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:31:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:31:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_eccerr [2022-11-20 11:31:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_eccerr [2022-11-20 11:31:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 11:31:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 11:31:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-20 11:31:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-20 11:31:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 11:31:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 11:31:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in [2022-11-20 11:31:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in [2022-11-20 11:31:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 11:31:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 11:31:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-20 11:31:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-20 11:31:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 11:31:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 11:31:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-20 11:31:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-20 11:31:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure __nand_correct_data [2022-11-20 11:31:03,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __nand_correct_data [2022-11-20 11:31:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-20 11:31:03,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-20 11:31:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:31:03,799 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:31:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 11:31:03,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 11:31:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:31:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-20 11:31:03,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-20 11:31:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2022-11-20 11:31:03,800 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2022-11-20 11:31:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:31:03,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:31:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-20 11:31:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-20 11:31:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure sm_sector_valid [2022-11-20 11:31:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_sector_valid [2022-11-20 11:31:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure sm_erase_block [2022-11-20 11:31:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_erase_block [2022-11-20 11:31:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-20 11:31:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-20 11:31:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 11:31:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 11:31:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure sm_break_offset [2022-11-20 11:31:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_break_offset [2022-11-20 11:31:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure sm_block_valid [2022-11-20 11:31:03,803 INFO L138 BoogieDeclarations]: Found implementation of procedure sm_block_valid [2022-11-20 11:31:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-20 11:31:03,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-20 11:31:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:31:04,564 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:31:04,568 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:31:05,265 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:31:07,186 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:31:07,208 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:31:07,208 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:31:07,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:07 BoogieIcfgContainer [2022-11-20 11:31:07,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:31:07,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:31:07,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:31:07,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:31:07,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:30:59" (1/3) ... [2022-11-20 11:31:07,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ded35cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:31:07, skipping insertion in model container [2022-11-20 11:31:07,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:03" (2/3) ... [2022-11-20 11:31:07,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ded35cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:31:07, skipping insertion in model container [2022-11-20 11:31:07,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:07" (3/3) ... [2022-11-20 11:31:07,225 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--mtd--sm_ftl.ko.cil.i [2022-11-20 11:31:07,244 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:31:07,244 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2022-11-20 11:31:07,318 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:31:07,325 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=PETRI_NET, 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;@13ee7880, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:31:07,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-20 11:31:07,334 INFO L276 IsEmpty]: Start isEmpty. Operand has 1152 states, 796 states have (on average 1.3278894472361809) internal successors, (1057), 847 states have internal predecessors, (1057), 251 states have call successors, (251), 78 states have call predecessors, (251), 77 states have return successors, (248), 246 states have call predecessors, (248), 248 states have call successors, (248) [2022-11-20 11:31:07,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-20 11:31:07,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:07,344 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:31:07,345 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:31:07,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:07,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1559658374, now seen corresponding path program 1 times [2022-11-20 11:31:07,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:07,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304969246] [2022-11-20 11:31:07,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:07,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:08,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:08,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:31:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:08,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:31:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:08,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:31:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:08,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:31:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:08,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:31:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:08,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:31:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:08,099 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:31:08,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:08,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304969246] [2022-11-20 11:31:08,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304969246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:08,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:08,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:31:08,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524197481] [2022-11-20 11:31:08,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:08,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:08,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:08,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:08,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:08,158 INFO L87 Difference]: Start difference. First operand has 1152 states, 796 states have (on average 1.3278894472361809) internal successors, (1057), 847 states have internal predecessors, (1057), 251 states have call successors, (251), 78 states have call predecessors, (251), 77 states have return successors, (248), 246 states have call predecessors, (248), 248 states have call successors, (248) Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 11:31:12,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:12,550 INFO L93 Difference]: Finished difference Result 2276 states and 3153 transitions. [2022-11-20 11:31:12,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:31:12,552 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 4 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 50 [2022-11-20 11:31:12,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:12,571 INFO L225 Difference]: With dead ends: 2276 [2022-11-20 11:31:12,571 INFO L226 Difference]: Without dead ends: 1136 [2022-11-20 11:31:12,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:31:12,589 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 2552 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 1040 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2659 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 3353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1040 IncrementalHoareTripleChecker+Valid, 2313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:12,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2659 Valid, 1559 Invalid, 3353 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1040 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-20 11:31:12,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-11-20 11:31:12,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1136. [2022-11-20 11:31:12,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 786 states have (on average 1.286259541984733) internal successors, (1011), 834 states have internal predecessors, (1011), 248 states have call successors, (248), 77 states have call predecessors, (248), 76 states have return successors, (246), 244 states have call predecessors, (246), 246 states have call successors, (246) [2022-11-20 11:31:12,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1505 transitions. [2022-11-20 11:31:12,756 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1505 transitions. Word has length 50 [2022-11-20 11:31:12,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:12,758 INFO L495 AbstractCegarLoop]: Abstraction has 1136 states and 1505 transitions. [2022-11-20 11:31:12,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 11:31:12,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1505 transitions. [2022-11-20 11:31:12,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-20 11:31:12,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:12,767 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:31:12,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:31:12,768 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:31:12,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:12,770 INFO L85 PathProgramCache]: Analyzing trace with hash -748276215, now seen corresponding path program 1 times [2022-11-20 11:31:12,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:12,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613525824] [2022-11-20 11:31:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:12,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:13,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:13,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:31:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:13,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:31:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:13,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:31:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:13,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:31:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:13,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:31:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:13,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:31:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:13,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:31:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:13,178 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:31:13,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:13,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613525824] [2022-11-20 11:31:13,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613525824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:13,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:13,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:31:13,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388427090] [2022-11-20 11:31:13,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:13,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:13,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:13,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:13,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:13,183 INFO L87 Difference]: Start difference. First operand 1136 states and 1505 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 11:31:16,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:16,963 INFO L93 Difference]: Finished difference Result 1136 states and 1505 transitions. [2022-11-20 11:31:16,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:31:16,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 4 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 56 [2022-11-20 11:31:16,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:16,971 INFO L225 Difference]: With dead ends: 1136 [2022-11-20 11:31:16,972 INFO L226 Difference]: Without dead ends: 1134 [2022-11-20 11:31:16,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:31:16,974 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2522 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2626 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 3325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:16,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2626 Valid, 1539 Invalid, 3325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-20 11:31:16,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2022-11-20 11:31:17,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1134. [2022-11-20 11:31:17,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 785 states have (on average 1.2853503184713375) internal successors, (1009), 832 states have internal predecessors, (1009), 248 states have call successors, (248), 77 states have call predecessors, (248), 76 states have return successors, (246), 244 states have call predecessors, (246), 246 states have call successors, (246) [2022-11-20 11:31:17,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1503 transitions. [2022-11-20 11:31:17,069 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1503 transitions. Word has length 56 [2022-11-20 11:31:17,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:17,070 INFO L495 AbstractCegarLoop]: Abstraction has 1134 states and 1503 transitions. [2022-11-20 11:31:17,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 11:31:17,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1503 transitions. [2022-11-20 11:31:17,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-20 11:31:17,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:17,079 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:17,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:31:17,079 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:31:17,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:17,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1900995450, now seen corresponding path program 1 times [2022-11-20 11:31:17,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:17,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556016534] [2022-11-20 11:31:17,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:17,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:17,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:17,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:31:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:17,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:31:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:17,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:31:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:17,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:31:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:17,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:31:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:17,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:31:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:17,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:31:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:17,649 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 11:31:17,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:17,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556016534] [2022-11-20 11:31:17,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556016534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:17,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:17,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:31:17,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272909321] [2022-11-20 11:31:17,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:17,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:17,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:17,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:17,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:17,655 INFO L87 Difference]: Start difference. First operand 1134 states and 1503 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 11:31:21,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:21,207 INFO L93 Difference]: Finished difference Result 1383 states and 1829 transitions. [2022-11-20 11:31:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:31:21,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-11-20 11:31:21,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:21,222 INFO L225 Difference]: With dead ends: 1383 [2022-11-20 11:31:21,222 INFO L226 Difference]: Without dead ends: 1381 [2022-11-20 11:31:21,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:31:21,226 INFO L413 NwaCegarLoop]: 1325 mSDtfsCounter, 1131 mSDsluCounter, 3671 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 2522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:21,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 4996 Invalid, 2522 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [311 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-20 11:31:21,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-11-20 11:31:21,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1350. [2022-11-20 11:31:21,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 934 states have (on average 1.2880085653104925) internal successors, (1203), 986 states have internal predecessors, (1203), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:31:21,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1783 transitions. [2022-11-20 11:31:21,367 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1783 transitions. Word has length 62 [2022-11-20 11:31:21,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:21,367 INFO L495 AbstractCegarLoop]: Abstraction has 1350 states and 1783 transitions. [2022-11-20 11:31:21,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 11:31:21,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1783 transitions. [2022-11-20 11:31:21,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-20 11:31:21,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:21,369 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:31:21,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:31:21,370 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:31:21,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:21,370 INFO L85 PathProgramCache]: Analyzing trace with hash -101026465, now seen corresponding path program 1 times [2022-11-20 11:31:21,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:21,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654743473] [2022-11-20 11:31:21,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:21,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:21,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:21,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:31:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:21,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:31:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:21,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:31:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:21,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:31:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:21,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:31:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:21,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:31:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:21,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:31:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:21,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:31:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:21,696 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:31:21,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:21,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654743473] [2022-11-20 11:31:21,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654743473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:21,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:21,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:31:21,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805192216] [2022-11-20 11:31:21,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:21,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:21,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:21,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:21,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:21,699 INFO L87 Difference]: Start difference. First operand 1350 states and 1783 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 11:31:25,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:25,247 INFO L93 Difference]: Finished difference Result 1350 states and 1783 transitions. [2022-11-20 11:31:25,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:31:25,248 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (10), 4 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 62 [2022-11-20 11:31:25,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:25,255 INFO L225 Difference]: With dead ends: 1350 [2022-11-20 11:31:25,255 INFO L226 Difference]: Without dead ends: 1348 [2022-11-20 11:31:25,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:31:25,257 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2510 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2613 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 3317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:25,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2613 Valid, 1539 Invalid, 3317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2283 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-20 11:31:25,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-20 11:31:25,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 1348. [2022-11-20 11:31:25,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 933 states have (on average 1.287245444801715) internal successors, (1201), 984 states have internal predecessors, (1201), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:31:25,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1781 transitions. [2022-11-20 11:31:25,359 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1781 transitions. Word has length 62 [2022-11-20 11:31:25,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:25,360 INFO L495 AbstractCegarLoop]: Abstraction has 1348 states and 1781 transitions. [2022-11-20 11:31:25,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 11:31:25,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1781 transitions. [2022-11-20 11:31:25,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-20 11:31:25,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:25,362 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:31:25,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:31:25,362 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:31:25,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:25,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1592939546, now seen corresponding path program 1 times [2022-11-20 11:31:25,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:25,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127426820] [2022-11-20 11:31:25,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:25,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:25,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:25,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:31:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:25,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:31:25,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:25,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:31:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:25,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:31:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:25,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:31:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:25,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:31:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:25,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:31:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:25,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:31:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:25,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:31:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:25,584 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:31:25,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:25,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127426820] [2022-11-20 11:31:25,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127426820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:25,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:25,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:31:25,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369507966] [2022-11-20 11:31:25,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:25,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:25,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:25,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:25,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:25,587 INFO L87 Difference]: Start difference. First operand 1348 states and 1781 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 11:31:29,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:29,037 INFO L93 Difference]: Finished difference Result 1348 states and 1781 transitions. [2022-11-20 11:31:29,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:31:29,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (11), 4 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 68 [2022-11-20 11:31:29,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:29,047 INFO L225 Difference]: With dead ends: 1348 [2022-11-20 11:31:29,047 INFO L226 Difference]: Without dead ends: 1346 [2022-11-20 11:31:29,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:31:29,049 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2504 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2606 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 3313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:29,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2606 Valid, 1539 Invalid, 3313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2279 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-20 11:31:29,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2022-11-20 11:31:29,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1346. [2022-11-20 11:31:29,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 932 states have (on average 1.286480686695279) internal successors, (1199), 982 states have internal predecessors, (1199), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:31:29,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1779 transitions. [2022-11-20 11:31:29,182 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1779 transitions. Word has length 68 [2022-11-20 11:31:29,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:29,182 INFO L495 AbstractCegarLoop]: Abstraction has 1346 states and 1779 transitions. [2022-11-20 11:31:29,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 11:31:29,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1779 transitions. [2022-11-20 11:31:29,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-20 11:31:29,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:29,184 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:29,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:31:29,186 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:31:29,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:29,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1655150629, now seen corresponding path program 1 times [2022-11-20 11:31:29,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:29,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873564858] [2022-11-20 11:31:29,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:29,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:29,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:29,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:31:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:29,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:31:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:29,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:31:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:29,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:31:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:29,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:31:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:29,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:31:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:29,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:31:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:29,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 11:31:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:29,599 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 11:31:29,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:29,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873564858] [2022-11-20 11:31:29,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873564858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:29,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:29,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:31:29,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381200950] [2022-11-20 11:31:29,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:29,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:31:29,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:29,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:31:29,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:31:29,602 INFO L87 Difference]: Start difference. First operand 1346 states and 1779 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 11:31:32,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:32,830 INFO L93 Difference]: Finished difference Result 2701 states and 3585 transitions. [2022-11-20 11:31:32,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:31:32,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 71 [2022-11-20 11:31:32,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:32,839 INFO L225 Difference]: With dead ends: 2701 [2022-11-20 11:31:32,839 INFO L226 Difference]: Without dead ends: 1373 [2022-11-20 11:31:32,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:31:32,845 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 1587 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 2368 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 4577 SdHoareTripleChecker+Invalid, 2711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 2368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:32,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 4577 Invalid, 2711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [343 Valid, 2368 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-20 11:31:32,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2022-11-20 11:31:32,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1346. [2022-11-20 11:31:32,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 932 states have (on average 1.2843347639484979) internal successors, (1197), 982 states have internal predecessors, (1197), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:31:32,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1777 transitions. [2022-11-20 11:31:32,947 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1777 transitions. Word has length 71 [2022-11-20 11:31:32,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:32,948 INFO L495 AbstractCegarLoop]: Abstraction has 1346 states and 1777 transitions. [2022-11-20 11:31:32,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 11:31:32,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1777 transitions. [2022-11-20 11:31:32,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-20 11:31:32,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:32,950 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:32,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:31:32,950 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:31:32,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:32,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1655210211, now seen corresponding path program 1 times [2022-11-20 11:31:32,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:32,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959933522] [2022-11-20 11:31:32,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:32,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:33,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:33,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:31:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:33,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:31:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:33,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:31:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:33,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:31:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:33,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:31:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:33,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:31:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:33,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:31:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:33,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 11:31:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:33,188 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 11:31:33,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:33,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959933522] [2022-11-20 11:31:33,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959933522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:33,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:33,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:33,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727638642] [2022-11-20 11:31:33,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:33,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:31:33,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:33,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:31:33,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:31:33,191 INFO L87 Difference]: Start difference. First operand 1346 states and 1777 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-20 11:31:35,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:35,519 INFO L93 Difference]: Finished difference Result 1373 states and 1819 transitions. [2022-11-20 11:31:35,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:31:35,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 71 [2022-11-20 11:31:35,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:35,529 INFO L225 Difference]: With dead ends: 1373 [2022-11-20 11:31:35,529 INFO L226 Difference]: Without dead ends: 1371 [2022-11-20 11:31:35,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:31:35,532 INFO L413 NwaCegarLoop]: 1170 mSDtfsCounter, 337 mSDsluCounter, 2701 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 3871 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:35,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 3871 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1564 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 11:31:35,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2022-11-20 11:31:35,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1344. [2022-11-20 11:31:35,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 931 states have (on average 1.2824919441460796) internal successors, (1194), 980 states have internal predecessors, (1194), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:31:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1774 transitions. [2022-11-20 11:31:35,640 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1774 transitions. Word has length 71 [2022-11-20 11:31:35,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:35,642 INFO L495 AbstractCegarLoop]: Abstraction has 1344 states and 1774 transitions. [2022-11-20 11:31:35,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-20 11:31:35,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1774 transitions. [2022-11-20 11:31:35,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-20 11:31:35,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:35,648 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:31:35,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:31:35,648 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:31:35,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:35,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1950713783, now seen corresponding path program 1 times [2022-11-20 11:31:35,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:35,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339867928] [2022-11-20 11:31:35,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:35,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:35,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:35,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:31:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:35,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:31:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:35,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:31:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:35,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:31:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:35,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:31:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:35,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:31:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:35,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:31:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:35,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:31:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:35,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:31:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:35,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:31:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:35,883 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:31:35,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:35,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339867928] [2022-11-20 11:31:35,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339867928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:35,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:35,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:31:35,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094024676] [2022-11-20 11:31:35,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:35,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:35,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:35,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:35,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:35,886 INFO L87 Difference]: Start difference. First operand 1344 states and 1774 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 11:31:39,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:39,184 INFO L93 Difference]: Finished difference Result 1344 states and 1774 transitions. [2022-11-20 11:31:39,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:31:39,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (12), 4 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 74 [2022-11-20 11:31:39,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:39,192 INFO L225 Difference]: With dead ends: 1344 [2022-11-20 11:31:39,193 INFO L226 Difference]: Without dead ends: 1342 [2022-11-20 11:31:39,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:31:39,195 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2489 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2590 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 3303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:39,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2590 Valid, 1539 Invalid, 3303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-20 11:31:39,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2022-11-20 11:31:39,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1342. [2022-11-20 11:31:39,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 930 states have (on average 1.281720430107527) internal successors, (1192), 978 states have internal predecessors, (1192), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:31:39,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1772 transitions. [2022-11-20 11:31:39,303 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1772 transitions. Word has length 74 [2022-11-20 11:31:39,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:39,304 INFO L495 AbstractCegarLoop]: Abstraction has 1342 states and 1772 transitions. [2022-11-20 11:31:39,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 11:31:39,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1772 transitions. [2022-11-20 11:31:39,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 11:31:39,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:39,316 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:39,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:31:39,317 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:31:39,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:39,318 INFO L85 PathProgramCache]: Analyzing trace with hash -281283863, now seen corresponding path program 1 times [2022-11-20 11:31:39,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:39,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950539402] [2022-11-20 11:31:39,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:39,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:39,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:39,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:31:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:39,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:31:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:39,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:31:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:39,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:31:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:39,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:31:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:39,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:31:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:39,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:31:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:39,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 11:31:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:39,536 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 11:31:39,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:39,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950539402] [2022-11-20 11:31:39,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950539402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:39,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:39,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:31:39,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586428000] [2022-11-20 11:31:39,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:39,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:31:39,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:39,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:31:39,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:31:39,541 INFO L87 Difference]: Start difference. First operand 1342 states and 1772 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 11:31:41,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:41,230 INFO L93 Difference]: Finished difference Result 2687 states and 3564 transitions. [2022-11-20 11:31:41,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:31:41,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2022-11-20 11:31:41,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:41,239 INFO L225 Difference]: With dead ends: 2687 [2022-11-20 11:31:41,239 INFO L226 Difference]: Without dead ends: 1363 [2022-11-20 11:31:41,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:31:41,246 INFO L413 NwaCegarLoop]: 1166 mSDtfsCounter, 1558 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:41,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1711 Valid, 1834 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-20 11:31:41,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2022-11-20 11:31:41,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1336. [2022-11-20 11:31:41,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 925 states have (on average 1.278918918918919) internal successors, (1183), 972 states have internal predecessors, (1183), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:31:41,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1763 transitions. [2022-11-20 11:31:41,402 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1763 transitions. Word has length 75 [2022-11-20 11:31:41,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:41,402 INFO L495 AbstractCegarLoop]: Abstraction has 1336 states and 1763 transitions. [2022-11-20 11:31:41,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 11:31:41,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1763 transitions. [2022-11-20 11:31:41,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-20 11:31:41,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:41,407 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:41,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:31:41,407 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:31:41,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:41,408 INFO L85 PathProgramCache]: Analyzing trace with hash -143326048, now seen corresponding path program 1 times [2022-11-20 11:31:41,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:41,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858344984] [2022-11-20 11:31:41,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:41,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:41,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:41,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:31:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:41,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:31:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:41,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:31:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:41,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:31:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:41,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:31:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:41,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:31:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:41,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:31:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:41,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:31:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:41,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:31:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:41,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 11:31:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:41,777 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 11:31:41,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:41,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858344984] [2022-11-20 11:31:41,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858344984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:41,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:41,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:31:41,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722805257] [2022-11-20 11:31:41,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:41,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:31:41,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:41,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:31:41,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:31:41,779 INFO L87 Difference]: Start difference. First operand 1336 states and 1763 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 11:31:48,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:48,900 INFO L93 Difference]: Finished difference Result 1376 states and 1828 transitions. [2022-11-20 11:31:48,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:31:48,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 80 [2022-11-20 11:31:48,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:48,908 INFO L225 Difference]: With dead ends: 1376 [2022-11-20 11:31:48,909 INFO L226 Difference]: Without dead ends: 1374 [2022-11-20 11:31:48,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:31:48,911 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 1889 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 5521 mSolverCounterSat, 976 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1952 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 6497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 976 IncrementalHoareTripleChecker+Valid, 5521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:48,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1952 Valid, 2516 Invalid, 6497 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [976 Valid, 5521 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-20 11:31:48,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2022-11-20 11:31:49,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 1334. [2022-11-20 11:31:49,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 924 states have (on average 1.2781385281385282) internal successors, (1181), 970 states have internal predecessors, (1181), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:31:49,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 1761 transitions. [2022-11-20 11:31:49,086 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 1761 transitions. Word has length 80 [2022-11-20 11:31:49,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:49,087 INFO L495 AbstractCegarLoop]: Abstraction has 1334 states and 1761 transitions. [2022-11-20 11:31:49,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 11:31:49,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 1761 transitions. [2022-11-20 11:31:49,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-20 11:31:49,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:49,091 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:31:49,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:31:49,096 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:31:49,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:49,097 INFO L85 PathProgramCache]: Analyzing trace with hash -403636507, now seen corresponding path program 1 times [2022-11-20 11:31:49,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:49,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681929063] [2022-11-20 11:31:49,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:49,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:49,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:49,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:31:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:49,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:31:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:31:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:49,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:31:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:49,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:31:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:49,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:31:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:49,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:31:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:31:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:49,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:31:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:49,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:31:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:49,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:31:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:49,384 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:31:49,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:49,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681929063] [2022-11-20 11:31:49,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681929063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:49,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:49,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:31:49,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601181061] [2022-11-20 11:31:49,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:49,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:49,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:49,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:49,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:49,387 INFO L87 Difference]: Start difference. First operand 1334 states and 1761 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 11:31:52,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:52,864 INFO L93 Difference]: Finished difference Result 1334 states and 1761 transitions. [2022-11-20 11:31:52,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:31:52,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (13), 4 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 80 [2022-11-20 11:31:52,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:52,871 INFO L225 Difference]: With dead ends: 1334 [2022-11-20 11:31:52,871 INFO L226 Difference]: Without dead ends: 1332 [2022-11-20 11:31:52,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:31:52,873 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2462 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2251 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2562 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 3285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:52,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2562 Valid, 1539 Invalid, 3285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2251 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-20 11:31:52,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2022-11-20 11:31:53,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1332. [2022-11-20 11:31:53,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 923 states have (on average 1.277356446370531) internal successors, (1179), 968 states have internal predecessors, (1179), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:31:53,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1759 transitions. [2022-11-20 11:31:53,013 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1759 transitions. Word has length 80 [2022-11-20 11:31:53,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:53,014 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 1759 transitions. [2022-11-20 11:31:53,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 11:31:53,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1759 transitions. [2022-11-20 11:31:53,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-20 11:31:53,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:53,016 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:31:53,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:31:53,017 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:31:53,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:53,017 INFO L85 PathProgramCache]: Analyzing trace with hash 713174019, now seen corresponding path program 1 times [2022-11-20 11:31:53,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:53,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805779256] [2022-11-20 11:31:53,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:53,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:53,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:53,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:31:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:53,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:31:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:53,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:31:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:53,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:31:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:53,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:31:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:53,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:31:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:53,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:31:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:53,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:31:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:53,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:31:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:53,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:31:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:53,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:31:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:53,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:31:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:53,267 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:31:53,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:53,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805779256] [2022-11-20 11:31:53,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805779256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:53,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:53,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:31:53,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643877651] [2022-11-20 11:31:53,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:53,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:53,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:53,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:53,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:53,270 INFO L87 Difference]: Start difference. First operand 1332 states and 1759 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 11:31:56,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:56,483 INFO L93 Difference]: Finished difference Result 1332 states and 1759 transitions. [2022-11-20 11:31:56,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:31:56,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (14), 4 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 86 [2022-11-20 11:31:56,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:56,491 INFO L225 Difference]: With dead ends: 1332 [2022-11-20 11:31:56,492 INFO L226 Difference]: Without dead ends: 1330 [2022-11-20 11:31:56,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:31:56,493 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2456 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2555 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 3281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:56,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2555 Valid, 1539 Invalid, 3281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-20 11:31:56,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2022-11-20 11:31:56,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1330. [2022-11-20 11:31:56,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 922 states have (on average 1.2765726681127982) internal successors, (1177), 966 states have internal predecessors, (1177), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:31:56,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1757 transitions. [2022-11-20 11:31:56,639 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1757 transitions. Word has length 86 [2022-11-20 11:31:56,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:56,639 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 1757 transitions. [2022-11-20 11:31:56,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 11:31:56,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1757 transitions. [2022-11-20 11:31:56,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-20 11:31:56,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:56,642 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:31:56,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:31:56,642 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:31:56,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:56,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1189681752, now seen corresponding path program 1 times [2022-11-20 11:31:56,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:56,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750488483] [2022-11-20 11:31:56,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:56,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:31:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:31:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:31:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:31:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:31:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:31:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:31:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:31:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:31:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:31:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:31:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:31:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:31:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,891 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:31:56,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:56,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750488483] [2022-11-20 11:31:56,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750488483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:56,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:56,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:31:56,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312049097] [2022-11-20 11:31:56,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:56,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:56,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:56,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:56,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:56,893 INFO L87 Difference]: Start difference. First operand 1330 states and 1757 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 11:31:59,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:59,965 INFO L93 Difference]: Finished difference Result 1330 states and 1757 transitions. [2022-11-20 11:31:59,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:31:59,965 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (15), 4 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 92 [2022-11-20 11:31:59,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:59,972 INFO L225 Difference]: With dead ends: 1330 [2022-11-20 11:31:59,973 INFO L226 Difference]: Without dead ends: 1328 [2022-11-20 11:31:59,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:31:59,975 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2454 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2552 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 3273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:59,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2552 Valid, 1539 Invalid, 3273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 11:31:59,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2022-11-20 11:32:00,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1328. [2022-11-20 11:32:00,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 921 states have (on average 1.275787187839305) internal successors, (1175), 964 states have internal predecessors, (1175), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:32:00,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 1755 transitions. [2022-11-20 11:32:00,167 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 1755 transitions. Word has length 92 [2022-11-20 11:32:00,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:00,168 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 1755 transitions. [2022-11-20 11:32:00,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 11:32:00,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 1755 transitions. [2022-11-20 11:32:00,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-20 11:32:00,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:00,171 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:32:00,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:32:00,171 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:32:00,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:00,172 INFO L85 PathProgramCache]: Analyzing trace with hash -822710005, now seen corresponding path program 1 times [2022-11-20 11:32:00,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:00,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672614376] [2022-11-20 11:32:00,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:00,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:00,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:32:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:00,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:32:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:00,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:32:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:32:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:00,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:32:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:00,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:32:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:00,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:32:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:00,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:32:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:00,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:32:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:00,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:32:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:00,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:32:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:00,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:32:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:00,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:32:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:00,415 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:32:00,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:00,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672614376] [2022-11-20 11:32:00,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672614376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:00,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:00,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:32:00,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402933266] [2022-11-20 11:32:00,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:00,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:32:00,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:00,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:32:00,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:32:00,425 INFO L87 Difference]: Start difference. First operand 1328 states and 1755 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 11:32:03,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:03,548 INFO L93 Difference]: Finished difference Result 1328 states and 1755 transitions. [2022-11-20 11:32:03,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:32:03,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 4 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 94 [2022-11-20 11:32:03,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:03,555 INFO L225 Difference]: With dead ends: 1328 [2022-11-20 11:32:03,555 INFO L226 Difference]: Without dead ends: 1326 [2022-11-20 11:32:03,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:32:03,556 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2442 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2540 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 3273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:03,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2540 Valid, 1539 Invalid, 3273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 11:32:03,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-11-20 11:32:03,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1326. [2022-11-20 11:32:03,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 920 states have (on average 1.275) internal successors, (1173), 962 states have internal predecessors, (1173), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:32:03,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1753 transitions. [2022-11-20 11:32:03,714 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1753 transitions. Word has length 94 [2022-11-20 11:32:03,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:03,715 INFO L495 AbstractCegarLoop]: Abstraction has 1326 states and 1753 transitions. [2022-11-20 11:32:03,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 11:32:03,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1753 transitions. [2022-11-20 11:32:03,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-20 11:32:03,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:03,718 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:32:03,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:32:03,718 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:32:03,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:03,719 INFO L85 PathProgramCache]: Analyzing trace with hash 2122330907, now seen corresponding path program 1 times [2022-11-20 11:32:03,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:03,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926194221] [2022-11-20 11:32:03,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:03,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:32:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:32:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:32:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:32:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:32:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:32:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:32:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:32:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:32:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:32:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:32:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:32:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:32:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:32:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,966 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:32:03,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:03,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926194221] [2022-11-20 11:32:03,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926194221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:03,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:03,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:32:03,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185259829] [2022-11-20 11:32:03,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:03,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:32:03,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:03,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:32:03,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:32:03,968 INFO L87 Difference]: Start difference. First operand 1326 states and 1753 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 11:32:07,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:07,148 INFO L93 Difference]: Finished difference Result 1326 states and 1753 transitions. [2022-11-20 11:32:07,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:32:07,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (16), 4 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 100 [2022-11-20 11:32:07,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:07,155 INFO L225 Difference]: With dead ends: 1326 [2022-11-20 11:32:07,155 INFO L226 Difference]: Without dead ends: 1324 [2022-11-20 11:32:07,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:32:07,156 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2438 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2535 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 3269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:07,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2535 Valid, 1539 Invalid, 3269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-20 11:32:07,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-11-20 11:32:07,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1324. [2022-11-20 11:32:07,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 919 states have (on average 1.2742110990206748) internal successors, (1171), 960 states have internal predecessors, (1171), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:32:07,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1751 transitions. [2022-11-20 11:32:07,337 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1751 transitions. Word has length 100 [2022-11-20 11:32:07,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:07,338 INFO L495 AbstractCegarLoop]: Abstraction has 1324 states and 1751 transitions. [2022-11-20 11:32:07,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 11:32:07,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1751 transitions. [2022-11-20 11:32:07,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-20 11:32:07,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:07,341 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:32:07,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:32:07,342 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:32:07,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:07,342 INFO L85 PathProgramCache]: Analyzing trace with hash -17014654, now seen corresponding path program 1 times [2022-11-20 11:32:07,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:07,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856511247] [2022-11-20 11:32:07,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:07,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:32:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:32:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:32:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:32:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:32:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:32:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:32:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:32:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:32:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:32:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:32:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:32:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:32:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:32:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 11:32:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:07,711 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:32:07,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:07,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856511247] [2022-11-20 11:32:07,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856511247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:07,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:07,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:32:07,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041749177] [2022-11-20 11:32:07,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:07,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:32:07,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:07,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:32:07,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:32:07,717 INFO L87 Difference]: Start difference. First operand 1324 states and 1751 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:32:10,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:10,815 INFO L93 Difference]: Finished difference Result 1324 states and 1751 transitions. [2022-11-20 11:32:10,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:32:10,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (17), 4 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 106 [2022-11-20 11:32:10,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:10,823 INFO L225 Difference]: With dead ends: 1324 [2022-11-20 11:32:10,823 INFO L226 Difference]: Without dead ends: 1322 [2022-11-20 11:32:10,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:32:10,824 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2432 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2231 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2528 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 3265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:10,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2528 Valid, 1539 Invalid, 3265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2231 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 11:32:10,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2022-11-20 11:32:11,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1322. [2022-11-20 11:32:11,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 918 states have (on average 1.2734204793028323) internal successors, (1169), 958 states have internal predecessors, (1169), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:32:11,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1749 transitions. [2022-11-20 11:32:11,015 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1749 transitions. Word has length 106 [2022-11-20 11:32:11,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:11,016 INFO L495 AbstractCegarLoop]: Abstraction has 1322 states and 1749 transitions. [2022-11-20 11:32:11,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:32:11,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1749 transitions. [2022-11-20 11:32:11,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-20 11:32:11,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:11,019 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:32:11,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:32:11,020 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:32:11,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:11,020 INFO L85 PathProgramCache]: Analyzing trace with hash 999566176, now seen corresponding path program 1 times [2022-11-20 11:32:11,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:11,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205648994] [2022-11-20 11:32:11,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:11,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:32:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:32:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:32:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:32:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:32:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:32:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:32:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:32:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:32:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:32:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:32:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:32:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:32:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:32:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 11:32:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 11:32:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:32:11,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:11,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205648994] [2022-11-20 11:32:11,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205648994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:11,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:11,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:32:11,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630520397] [2022-11-20 11:32:11,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:11,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:32:11,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:11,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:32:11,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:32:11,300 INFO L87 Difference]: Start difference. First operand 1322 states and 1749 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:32:14,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:14,356 INFO L93 Difference]: Finished difference Result 1322 states and 1749 transitions. [2022-11-20 11:32:14,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:32:14,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (18), 4 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 112 [2022-11-20 11:32:14,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:14,361 INFO L225 Difference]: With dead ends: 1322 [2022-11-20 11:32:14,361 INFO L226 Difference]: Without dead ends: 1320 [2022-11-20 11:32:14,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:32:14,362 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2426 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2227 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2521 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 3261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:14,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2521 Valid, 1539 Invalid, 3261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2227 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 11:32:14,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2022-11-20 11:32:14,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2022-11-20 11:32:14,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 917 states have (on average 1.2726281352235551) internal successors, (1167), 956 states have internal predecessors, (1167), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:32:14,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1747 transitions. [2022-11-20 11:32:14,541 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1747 transitions. Word has length 112 [2022-11-20 11:32:14,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:14,542 INFO L495 AbstractCegarLoop]: Abstraction has 1320 states and 1747 transitions. [2022-11-20 11:32:14,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:32:14,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1747 transitions. [2022-11-20 11:32:14,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-20 11:32:14,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:14,546 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:32:14,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:32:14,546 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:32:14,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:14,547 INFO L85 PathProgramCache]: Analyzing trace with hash 879851108, now seen corresponding path program 1 times [2022-11-20 11:32:14,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:14,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692860007] [2022-11-20 11:32:14,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:14,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:32:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:32:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:32:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:32:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:32:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:32:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:32:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:32:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:32:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:32:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:32:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:32:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:32:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:32:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 11:32:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 11:32:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 11:32:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:14,843 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:32:14,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:14,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692860007] [2022-11-20 11:32:14,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692860007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:14,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:14,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:32:14,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107933777] [2022-11-20 11:32:14,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:14,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:32:14,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:14,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:32:14,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:32:14,845 INFO L87 Difference]: Start difference. First operand 1320 states and 1747 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:32:18,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:18,048 INFO L93 Difference]: Finished difference Result 1320 states and 1747 transitions. [2022-11-20 11:32:18,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:32:18,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (19), 4 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 118 [2022-11-20 11:32:18,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:18,053 INFO L225 Difference]: With dead ends: 1320 [2022-11-20 11:32:18,053 INFO L226 Difference]: Without dead ends: 1318 [2022-11-20 11:32:18,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:32:18,054 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2420 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2223 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2514 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 3257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:18,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2514 Valid, 1539 Invalid, 3257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2223 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-20 11:32:18,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2022-11-20 11:32:18,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1318. [2022-11-20 11:32:18,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 916 states have (on average 1.2718340611353711) internal successors, (1165), 954 states have internal predecessors, (1165), 291 states have call successors, (291), 102 states have call predecessors, (291), 101 states have return successors, (289), 287 states have call predecessors, (289), 289 states have call successors, (289) [2022-11-20 11:32:18,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1745 transitions. [2022-11-20 11:32:18,254 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1745 transitions. Word has length 118 [2022-11-20 11:32:18,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:18,255 INFO L495 AbstractCegarLoop]: Abstraction has 1318 states and 1745 transitions. [2022-11-20 11:32:18,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:32:18,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1745 transitions. [2022-11-20 11:32:18,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-20 11:32:18,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:18,259 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-20 11:32:18,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:32:18,259 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting sm_cache_flushErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:32:18,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:18,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1690239148, now seen corresponding path program 1 times [2022-11-20 11:32:18,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:18,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620043935] [2022-11-20 11:32:18,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:18,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:32:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:32:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:32:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:32:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:32:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:32:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:32:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:32:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 11:32:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:32:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 11:32:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-20 11:32:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 11:32:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:32:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 11:32:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:18,609 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 11:32:18,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:18,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620043935] [2022-11-20 11:32:18,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620043935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:18,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:18,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:32:18,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88559367] [2022-11-20 11:32:18,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:18,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:32:18,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:18,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:32:18,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:32:18,613 INFO L87 Difference]: Start difference. First operand 1318 states and 1745 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:32:25,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:25,670 INFO L93 Difference]: Finished difference Result 2829 states and 3805 transitions. [2022-11-20 11:32:25,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:32:25,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 121 [2022-11-20 11:32:25,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:25,677 INFO L225 Difference]: With dead ends: 2829 [2022-11-20 11:32:25,677 INFO L226 Difference]: Without dead ends: 1529 [2022-11-20 11:32:25,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2022-11-20 11:32:25,682 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 1515 mSDsluCounter, 2112 mSDsCounter, 0 mSdLazyCounter, 6453 mSolverCounterSat, 913 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 7366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 913 IncrementalHoareTripleChecker+Valid, 6453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:25,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1616 Valid, 2660 Invalid, 7366 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [913 Valid, 6453 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-20 11:32:25,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2022-11-20 11:32:25,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1322. [2022-11-20 11:32:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 919 states have (on average 1.2709466811751904) internal successors, (1168), 957 states have internal predecessors, (1168), 291 states have call successors, (291), 102 states have call predecessors, (291), 102 states have return successors, (294), 288 states have call predecessors, (294), 289 states have call successors, (294) [2022-11-20 11:32:25,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1753 transitions. [2022-11-20 11:32:25,866 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1753 transitions. Word has length 121 [2022-11-20 11:32:25,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:25,866 INFO L495 AbstractCegarLoop]: Abstraction has 1322 states and 1753 transitions. [2022-11-20 11:32:25,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:32:25,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1753 transitions. [2022-11-20 11:32:25,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-20 11:32:25,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:25,871 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:32:25,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:32:25,871 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:32:25,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:25,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1193857042, now seen corresponding path program 1 times [2022-11-20 11:32:25,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:25,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303330695] [2022-11-20 11:32:25,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:25,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:32:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:32:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:32:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:32:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:32:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:32:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:32:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:32:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:32:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:32:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:32:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:32:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:32:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:32:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 11:32:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 11:32:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 11:32:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 11:32:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:26,138 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:32:26,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:26,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303330695] [2022-11-20 11:32:26,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303330695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:26,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:26,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:32:26,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198618840] [2022-11-20 11:32:26,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:26,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:32:26,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:26,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:32:26,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:32:26,140 INFO L87 Difference]: Start difference. First operand 1322 states and 1753 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:32:29,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:29,459 INFO L93 Difference]: Finished difference Result 1322 states and 1753 transitions. [2022-11-20 11:32:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:32:29,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (20), 4 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 124 [2022-11-20 11:32:29,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:29,466 INFO L225 Difference]: With dead ends: 1322 [2022-11-20 11:32:29,466 INFO L226 Difference]: Without dead ends: 1320 [2022-11-20 11:32:29,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:32:29,468 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2414 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2219 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2507 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 3253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:29,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2507 Valid, 1539 Invalid, 3253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2219 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-20 11:32:29,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2022-11-20 11:32:29,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2022-11-20 11:32:29,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 918 states have (on average 1.2701525054466232) internal successors, (1166), 955 states have internal predecessors, (1166), 291 states have call successors, (291), 102 states have call predecessors, (291), 102 states have return successors, (294), 288 states have call predecessors, (294), 289 states have call successors, (294) [2022-11-20 11:32:29,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1751 transitions. [2022-11-20 11:32:29,664 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1751 transitions. Word has length 124 [2022-11-20 11:32:29,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:29,664 INFO L495 AbstractCegarLoop]: Abstraction has 1320 states and 1751 transitions. [2022-11-20 11:32:29,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:32:29,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1751 transitions. [2022-11-20 11:32:29,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-20 11:32:29,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:29,669 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-20 11:32:29,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 11:32:29,670 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting sm_cache_flushErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:32:29,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:29,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1418188887, now seen corresponding path program 1 times [2022-11-20 11:32:29,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:29,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283687141] [2022-11-20 11:32:29,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:29,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:29,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:32:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:32:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:32:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:32:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:32:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:32:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:32:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:32:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 11:32:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:32:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 11:32:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-20 11:32:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 11:32:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:32:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 11:32:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 11:32:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,186 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 11:32:30,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:30,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283687141] [2022-11-20 11:32:30,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283687141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:30,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:30,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:32:30,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382006194] [2022-11-20 11:32:30,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:30,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:32:30,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:30,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:32:30,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:32:30,191 INFO L87 Difference]: Start difference. First operand 1320 states and 1751 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:32:35,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:35,925 INFO L93 Difference]: Finished difference Result 2684 states and 3613 transitions. [2022-11-20 11:32:35,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:32:35,926 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 125 [2022-11-20 11:32:35,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:35,933 INFO L225 Difference]: With dead ends: 2684 [2022-11-20 11:32:35,933 INFO L226 Difference]: Without dead ends: 1380 [2022-11-20 11:32:35,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:32:35,942 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 1616 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 4530 mSolverCounterSat, 1093 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 5623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1093 IncrementalHoareTripleChecker+Valid, 4530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:35,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 2223 Invalid, 5623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1093 Valid, 4530 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-20 11:32:35,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-11-20 11:32:36,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1324. [2022-11-20 11:32:36,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 921 states have (on average 1.270358306188925) internal successors, (1170), 959 states have internal predecessors, (1170), 291 states have call successors, (291), 102 states have call predecessors, (291), 103 states have return successors, (295), 288 states have call predecessors, (295), 289 states have call successors, (295) [2022-11-20 11:32:36,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1756 transitions. [2022-11-20 11:32:36,118 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1756 transitions. Word has length 125 [2022-11-20 11:32:36,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:36,119 INFO L495 AbstractCegarLoop]: Abstraction has 1324 states and 1756 transitions. [2022-11-20 11:32:36,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:32:36,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1756 transitions. [2022-11-20 11:32:36,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-20 11:32:36,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:36,123 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-20 11:32:36,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 11:32:36,124 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting sm_cache_flushErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:32:36,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:36,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1659315533, now seen corresponding path program 1 times [2022-11-20 11:32:36,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:36,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193065389] [2022-11-20 11:32:36,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:36,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:32:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:32:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:32:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:32:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:32:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:32:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:32:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:32:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 11:32:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:32:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 11:32:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-20 11:32:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 11:32:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 11:32:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:36,409 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 11:32:36,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:36,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193065389] [2022-11-20 11:32:36,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193065389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:36,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:36,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:32:36,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899210999] [2022-11-20 11:32:36,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:36,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:32:36,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:36,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:32:36,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:32:36,412 INFO L87 Difference]: Start difference. First operand 1324 states and 1756 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:32:42,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:42,138 INFO L93 Difference]: Finished difference Result 2788 states and 3783 transitions. [2022-11-20 11:32:42,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:32:42,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 123 [2022-11-20 11:32:42,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:42,146 INFO L225 Difference]: With dead ends: 2788 [2022-11-20 11:32:42,146 INFO L226 Difference]: Without dead ends: 1482 [2022-11-20 11:32:42,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:32:42,152 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 1196 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 4672 mSolverCounterSat, 531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 5203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 4672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:42,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 2216 Invalid, 5203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 4672 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-20 11:32:42,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2022-11-20 11:32:42,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1328. [2022-11-20 11:32:42,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 925 states have (on average 1.269189189189189) internal successors, (1174), 963 states have internal predecessors, (1174), 291 states have call successors, (291), 102 states have call predecessors, (291), 103 states have return successors, (295), 288 states have call predecessors, (295), 289 states have call successors, (295) [2022-11-20 11:32:42,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 1760 transitions. [2022-11-20 11:32:42,355 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 1760 transitions. Word has length 123 [2022-11-20 11:32:42,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:42,355 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 1760 transitions. [2022-11-20 11:32:42,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:32:42,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 1760 transitions. [2022-11-20 11:32:42,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-20 11:32:42,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:42,359 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-20 11:32:42,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 11:32:42,360 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting sm_cache_flushErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:32:42,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:42,360 INFO L85 PathProgramCache]: Analyzing trace with hash 11780083, now seen corresponding path program 1 times [2022-11-20 11:32:42,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:42,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978391751] [2022-11-20 11:32:42,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:42,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:32:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:32:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:32:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:32:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:32:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:32:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:32:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-20 11:32:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 11:32:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:32:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 11:32:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 11:32:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 11:32:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:32:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 11:32:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 11:32:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:42,922 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 11:32:42,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:42,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978391751] [2022-11-20 11:32:42,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978391751] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:32:42,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691341644] [2022-11-20 11:32:42,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:42,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:32:42,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:32:42,926 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:32:42,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:32:43,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:43,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 1308 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 11:32:43,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:32:43,835 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-20 11:32:43,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:32:44,030 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 11:32:44,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691341644] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:32:44,031 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:32:44,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2022-11-20 11:32:44,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196539883] [2022-11-20 11:32:44,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:32:44,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 11:32:44,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:44,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 11:32:44,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:32:44,033 INFO L87 Difference]: Start difference. First operand 1328 states and 1760 transitions. Second operand has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 10 states have internal predecessors, (87), 2 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:32:52,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:52,096 INFO L93 Difference]: Finished difference Result 2712 states and 3652 transitions. [2022-11-20 11:32:52,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:32:52,097 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 10 states have internal predecessors, (87), 2 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 129 [2022-11-20 11:32:52,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:52,105 INFO L225 Difference]: With dead ends: 2712 [2022-11-20 11:32:52,105 INFO L226 Difference]: Without dead ends: 1398 [2022-11-20 11:32:52,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 286 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2022-11-20 11:32:52,111 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 1649 mSDsluCounter, 2532 mSDsCounter, 0 mSdLazyCounter, 6672 mSolverCounterSat, 1101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1745 SdHoareTripleChecker+Valid, 3071 SdHoareTripleChecker+Invalid, 7773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1101 IncrementalHoareTripleChecker+Valid, 6672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:52,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1745 Valid, 3071 Invalid, 7773 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1101 Valid, 6672 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-20 11:32:52,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1398 states. [2022-11-20 11:32:52,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1398 to 1340. [2022-11-20 11:32:52,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 936 states have (on average 1.2724358974358974) internal successors, (1191), 974 states have internal predecessors, (1191), 291 states have call successors, (291), 103 states have call predecessors, (291), 104 states have return successors, (296), 288 states have call predecessors, (296), 289 states have call successors, (296) [2022-11-20 11:32:52,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1778 transitions. [2022-11-20 11:32:52,348 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1778 transitions. Word has length 129 [2022-11-20 11:32:52,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:52,348 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 1778 transitions. [2022-11-20 11:32:52,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 10 states have internal predecessors, (87), 2 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:32:52,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1778 transitions. [2022-11-20 11:32:52,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-20 11:32:52,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:52,352 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:32:52,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:32:52,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-20 11:32:52,561 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting sm_cache_flushErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:32:52,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:52,562 INFO L85 PathProgramCache]: Analyzing trace with hash 408014455, now seen corresponding path program 2 times [2022-11-20 11:32:52,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:52,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100677113] [2022-11-20 11:32:52,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:52,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:52,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:32:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:52,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:32:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:52,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:32:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:52,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:32:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:52,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:52,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:32:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:52,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:32:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:52,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:32:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:52,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-20 11:32:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:52,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:32:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:52,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 11:32:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:52,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:32:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:52,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 11:32:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:52,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 11:32:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:53,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 11:32:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:53,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:32:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:53,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 11:32:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:53,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 11:32:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:53,365 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 11:32:53,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:53,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100677113] [2022-11-20 11:32:53,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100677113] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:32:53,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64021359] [2022-11-20 11:32:53,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:32:53,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:32:53,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:32:53,367 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:32:53,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:32:54,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:32:54,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:32:54,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 1353 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 11:32:54,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:32:54,255 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-20 11:32:54,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:32:54,637 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 11:32:54,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64021359] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:32:54,638 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:32:54,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2022-11-20 11:32:54,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846688126] [2022-11-20 11:32:54,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:32:54,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:32:54,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:54,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:32:54,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:32:54,640 INFO L87 Difference]: Start difference. First operand 1340 states and 1778 transitions. Second operand has 23 states, 23 states have (on average 4.173913043478261) internal successors, (96), 19 states have internal predecessors, (96), 2 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:33:09,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:33:09,592 INFO L93 Difference]: Finished difference Result 2749 states and 3709 transitions. [2022-11-20 11:33:09,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 11:33:09,592 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.173913043478261) internal successors, (96), 19 states have internal predecessors, (96), 2 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 132 [2022-11-20 11:33:09,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:33:09,599 INFO L225 Difference]: With dead ends: 2749 [2022-11-20 11:33:09,599 INFO L226 Difference]: Without dead ends: 1421 [2022-11-20 11:33:09,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 286 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=535, Invalid=1721, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 11:33:09,605 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 1234 mSDsluCounter, 4881 mSDsCounter, 0 mSdLazyCounter, 12933 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 5422 SdHoareTripleChecker+Invalid, 13496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 12933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:33:09,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 5422 Invalid, 13496 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [563 Valid, 12933 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2022-11-20 11:33:09,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2022-11-20 11:33:09,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1355. [2022-11-20 11:33:09,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1355 states, 951 states have (on average 1.2765509989484753) internal successors, (1214), 989 states have internal predecessors, (1214), 291 states have call successors, (291), 103 states have call predecessors, (291), 104 states have return successors, (295), 288 states have call predecessors, (295), 289 states have call successors, (295) [2022-11-20 11:33:09,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1800 transitions. [2022-11-20 11:33:09,869 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1800 transitions. Word has length 132 [2022-11-20 11:33:09,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:33:09,870 INFO L495 AbstractCegarLoop]: Abstraction has 1355 states and 1800 transitions. [2022-11-20 11:33:09,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.173913043478261) internal successors, (96), 19 states have internal predecessors, (96), 2 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:33:09,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1800 transitions. [2022-11-20 11:33:09,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-20 11:33:09,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:33:09,873 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:33:09,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:33:10,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-20 11:33:10,087 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:33:10,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:10,088 INFO L85 PathProgramCache]: Analyzing trace with hash -708225308, now seen corresponding path program 1 times [2022-11-20 11:33:10,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:10,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493162823] [2022-11-20 11:33:10,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:10,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:33:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:33:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:33:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:33:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:33:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:33:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:33:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:33:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:33:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:33:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:33:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:33:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:33:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:33:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:33:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 11:33:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 11:33:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 11:33:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 11:33:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 11:33:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:10,391 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:33:10,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:10,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493162823] [2022-11-20 11:33:10,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493162823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:10,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:10,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:33:10,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743654792] [2022-11-20 11:33:10,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:10,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:33:10,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:10,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:33:10,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:33:10,394 INFO L87 Difference]: Start difference. First operand 1355 states and 1800 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 11:33:13,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:33:13,601 INFO L93 Difference]: Finished difference Result 1355 states and 1800 transitions. [2022-11-20 11:33:13,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:33:13,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (21), 4 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 130 [2022-11-20 11:33:13,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:33:13,606 INFO L225 Difference]: With dead ends: 1355 [2022-11-20 11:33:13,606 INFO L226 Difference]: Without dead ends: 1353 [2022-11-20 11:33:13,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:33:13,608 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2408 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2215 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 3249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:33:13,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2500 Valid, 1539 Invalid, 3249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2215 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 11:33:13,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2022-11-20 11:33:13,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1353. [2022-11-20 11:33:13,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 950 states have (on average 1.2757894736842106) internal successors, (1212), 987 states have internal predecessors, (1212), 291 states have call successors, (291), 103 states have call predecessors, (291), 104 states have return successors, (295), 288 states have call predecessors, (295), 289 states have call successors, (295) [2022-11-20 11:33:13,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1798 transitions. [2022-11-20 11:33:13,854 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1798 transitions. Word has length 130 [2022-11-20 11:33:13,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:33:13,854 INFO L495 AbstractCegarLoop]: Abstraction has 1353 states and 1798 transitions. [2022-11-20 11:33:13,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 11:33:13,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1798 transitions. [2022-11-20 11:33:13,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-20 11:33:13,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:33:13,858 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:33:13,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 11:33:13,858 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:33:13,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:13,859 INFO L85 PathProgramCache]: Analyzing trace with hash 671899402, now seen corresponding path program 1 times [2022-11-20 11:33:13,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:13,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129104421] [2022-11-20 11:33:13,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:13,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:33:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:33:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:33:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:33:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:33:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:33:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:33:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:33:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:33:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:33:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:33:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:33:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:33:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:33:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:33:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 11:33:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 11:33:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 11:33:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 11:33:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 11:33:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 11:33:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:14,273 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:33:14,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:14,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129104421] [2022-11-20 11:33:14,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129104421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:14,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:14,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:33:14,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557725417] [2022-11-20 11:33:14,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:14,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:33:14,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:14,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:33:14,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:33:14,276 INFO L87 Difference]: Start difference. First operand 1353 states and 1798 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 11:33:17,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:33:17,482 INFO L93 Difference]: Finished difference Result 1353 states and 1798 transitions. [2022-11-20 11:33:17,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:33:17,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (22), 4 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 136 [2022-11-20 11:33:17,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:33:17,487 INFO L225 Difference]: With dead ends: 1353 [2022-11-20 11:33:17,488 INFO L226 Difference]: Without dead ends: 1351 [2022-11-20 11:33:17,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:33:17,489 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2402 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2493 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 3245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:33:17,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2493 Valid, 1539 Invalid, 3245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 11:33:17,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2022-11-20 11:33:17,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1351. [2022-11-20 11:33:17,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 949 states have (on average 1.2750263435194942) internal successors, (1210), 985 states have internal predecessors, (1210), 291 states have call successors, (291), 103 states have call predecessors, (291), 104 states have return successors, (295), 288 states have call predecessors, (295), 289 states have call successors, (295) [2022-11-20 11:33:17,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1796 transitions. [2022-11-20 11:33:17,687 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1796 transitions. Word has length 136 [2022-11-20 11:33:17,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:33:17,688 INFO L495 AbstractCegarLoop]: Abstraction has 1351 states and 1796 transitions. [2022-11-20 11:33:17,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 11:33:17,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1796 transitions. [2022-11-20 11:33:17,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-20 11:33:17,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:33:17,691 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 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] [2022-11-20 11:33:17,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 11:33:17,692 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting sm_cache_flushErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:33:17,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:17,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1046536969, now seen corresponding path program 3 times [2022-11-20 11:33:17,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:17,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537689792] [2022-11-20 11:33:17,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:17,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:33:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:33:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:33:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:33:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:33:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:33:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:33:18,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:33:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-20 11:33:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:33:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 11:33:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:33:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 11:33:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 11:33:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 11:33:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:33:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 11:33:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 11:33:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:18,991 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 11:33:18,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:18,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537689792] [2022-11-20 11:33:18,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537689792] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:33:18,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998890685] [2022-11-20 11:33:18,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:33:18,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:33:18,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:33:18,995 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:33:19,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:33:24,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-20 11:33:24,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:33:24,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 1443 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-20 11:33:24,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:33:25,079 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 41 proven. 3 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-11-20 11:33:25,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:33:25,540 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-11-20 11:33:25,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998890685] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:33:25,541 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:33:25,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 8] total 30 [2022-11-20 11:33:25,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274860392] [2022-11-20 11:33:25,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:33:25,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-20 11:33:25,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:25,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-20 11:33:25,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2022-11-20 11:33:25,543 INFO L87 Difference]: Start difference. First operand 1351 states and 1796 transitions. Second operand has 30 states, 29 states have (on average 5.275862068965517) internal successors, (153), 24 states have internal predecessors, (153), 5 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (45), 6 states have call predecessors, (45), 5 states have call successors, (45) [2022-11-20 11:33:44,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:33:44,907 INFO L93 Difference]: Finished difference Result 2853 states and 3868 transitions. [2022-11-20 11:33:44,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-20 11:33:44,911 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 5.275862068965517) internal successors, (153), 24 states have internal predecessors, (153), 5 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (45), 6 states have call predecessors, (45), 5 states have call successors, (45) Word has length 138 [2022-11-20 11:33:44,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:33:44,917 INFO L225 Difference]: With dead ends: 2853 [2022-11-20 11:33:44,917 INFO L226 Difference]: Without dead ends: 1506 [2022-11-20 11:33:44,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=349, Invalid=3191, Unknown=0, NotChecked=0, Total=3540 [2022-11-20 11:33:44,923 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 1991 mSDsluCounter, 7681 mSDsCounter, 0 mSdLazyCounter, 19632 mSolverCounterSat, 1117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 8328 SdHoareTripleChecker+Invalid, 20749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1117 IncrementalHoareTripleChecker+Valid, 19632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:33:44,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 8328 Invalid, 20749 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1117 Valid, 19632 Invalid, 0 Unknown, 0 Unchecked, 17.6s Time] [2022-11-20 11:33:44,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2022-11-20 11:33:45,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1359. [2022-11-20 11:33:45,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 957 states have (on average 1.2727272727272727) internal successors, (1218), 993 states have internal predecessors, (1218), 291 states have call successors, (291), 103 states have call predecessors, (291), 104 states have return successors, (295), 288 states have call predecessors, (295), 289 states have call successors, (295) [2022-11-20 11:33:45,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1804 transitions. [2022-11-20 11:33:45,178 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1804 transitions. Word has length 138 [2022-11-20 11:33:45,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:33:45,178 INFO L495 AbstractCegarLoop]: Abstraction has 1359 states and 1804 transitions. [2022-11-20 11:33:45,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 5.275862068965517) internal successors, (153), 24 states have internal predecessors, (153), 5 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (45), 6 states have call predecessors, (45), 5 states have call successors, (45) [2022-11-20 11:33:45,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1804 transitions. [2022-11-20 11:33:45,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-20 11:33:45,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:33:45,181 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 6, 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] [2022-11-20 11:33:45,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:33:45,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-20 11:33:45,393 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting sm_cache_flushErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:33:45,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:45,393 INFO L85 PathProgramCache]: Analyzing trace with hash -769204592, now seen corresponding path program 1 times [2022-11-20 11:33:45,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:45,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392967735] [2022-11-20 11:33:45,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:45,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:33:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:45,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:33:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:45,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:33:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:45,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:33:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:33:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:33:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:33:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:33:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-20 11:33:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 11:33:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:33:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:33:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 11:33:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 11:33:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 11:33:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 11:33:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:33:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 11:33:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-20 11:33:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:46,832 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 11:33:46,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:46,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392967735] [2022-11-20 11:33:46,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392967735] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:33:46,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969964857] [2022-11-20 11:33:46,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:46,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:33:46,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:33:46,834 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:33:46,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:33:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:47,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 1476 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-20 11:33:47,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:33:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 3 proven. 66 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-20 11:33:48,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:33:49,352 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 11:33:49,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969964857] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:33:49,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:33:49,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 15] total 45 [2022-11-20 11:33:49,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258321308] [2022-11-20 11:33:49,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:33:49,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-20 11:33:49,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:49,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-20 11:33:49,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=425, Invalid=1555, Unknown=0, NotChecked=0, Total=1980 [2022-11-20 11:33:49,355 INFO L87 Difference]: Start difference. First operand 1359 states and 1804 transitions. Second operand has 45 states, 45 states have (on average 2.6666666666666665) internal successors, (120), 40 states have internal predecessors, (120), 2 states have call successors, (28), 7 states have call predecessors, (28), 5 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 11:34:29,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:29,877 INFO L93 Difference]: Finished difference Result 2813 states and 3797 transitions. [2022-11-20 11:34:29,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-20 11:34:29,877 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 2.6666666666666665) internal successors, (120), 40 states have internal predecessors, (120), 2 states have call successors, (28), 7 states have call predecessors, (28), 5 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 143 [2022-11-20 11:34:29,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:29,883 INFO L225 Difference]: With dead ends: 2813 [2022-11-20 11:34:29,883 INFO L226 Difference]: Without dead ends: 1466 [2022-11-20 11:34:29,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1761 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=2026, Invalid=7480, Unknown=0, NotChecked=0, Total=9506 [2022-11-20 11:34:29,890 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 1946 mSDsluCounter, 7899 mSDsCounter, 0 mSdLazyCounter, 21131 mSolverCounterSat, 1210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2052 SdHoareTripleChecker+Valid, 8440 SdHoareTripleChecker+Invalid, 22341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1210 IncrementalHoareTripleChecker+Valid, 21131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:29,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2052 Valid, 8440 Invalid, 22341 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1210 Valid, 21131 Invalid, 0 Unknown, 0 Unchecked, 20.1s Time] [2022-11-20 11:34:29,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2022-11-20 11:34:30,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1386. [2022-11-20 11:34:30,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 984 states have (on average 1.2784552845528456) internal successors, (1258), 1020 states have internal predecessors, (1258), 291 states have call successors, (291), 103 states have call predecessors, (291), 104 states have return successors, (295), 288 states have call predecessors, (295), 289 states have call successors, (295) [2022-11-20 11:34:30,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1844 transitions. [2022-11-20 11:34:30,090 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1844 transitions. Word has length 143 [2022-11-20 11:34:30,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:30,090 INFO L495 AbstractCegarLoop]: Abstraction has 1386 states and 1844 transitions. [2022-11-20 11:34:30,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.6666666666666665) internal successors, (120), 40 states have internal predecessors, (120), 2 states have call successors, (28), 7 states have call predecessors, (28), 5 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 11:34:30,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1844 transitions. [2022-11-20 11:34:30,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-20 11:34:30,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:30,094 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:30,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:34:30,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:30,304 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:34:30,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:30,305 INFO L85 PathProgramCache]: Analyzing trace with hash -33771359, now seen corresponding path program 1 times [2022-11-20 11:34:30,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:30,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031940755] [2022-11-20 11:34:30,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:30,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:34:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:34:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:34:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:34:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:34:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:34:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:34:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:34:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:34:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:34:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:34:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:34:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:34:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:34:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 11:34:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 11:34:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 11:34:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 11:34:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 11:34:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 11:34:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 11:34:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:30,589 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:34:30,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:30,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031940755] [2022-11-20 11:34:30,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031940755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:30,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:30,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:34:30,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047282354] [2022-11-20 11:34:30,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:30,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:34:30,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:30,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:34:30,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:34:30,592 INFO L87 Difference]: Start difference. First operand 1386 states and 1844 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:34:34,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:34,132 INFO L93 Difference]: Finished difference Result 1386 states and 1844 transitions. [2022-11-20 11:34:34,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:34:34,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (23), 4 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 142 [2022-11-20 11:34:34,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:34,138 INFO L225 Difference]: With dead ends: 1386 [2022-11-20 11:34:34,138 INFO L226 Difference]: Without dead ends: 1384 [2022-11-20 11:34:34,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:34:34,140 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 2395 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 2207 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 3241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:34,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2485 Valid, 1535 Invalid, 3241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2207 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-20 11:34:34,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2022-11-20 11:34:34,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2022-11-20 11:34:34,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 983 states have (on average 1.2777212614445574) internal successors, (1256), 1018 states have internal predecessors, (1256), 291 states have call successors, (291), 103 states have call predecessors, (291), 104 states have return successors, (295), 288 states have call predecessors, (295), 289 states have call successors, (295) [2022-11-20 11:34:34,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1842 transitions. [2022-11-20 11:34:34,413 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1842 transitions. Word has length 142 [2022-11-20 11:34:34,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:34,414 INFO L495 AbstractCegarLoop]: Abstraction has 1384 states and 1842 transitions. [2022-11-20 11:34:34,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:34:34,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1842 transitions. [2022-11-20 11:34:34,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-20 11:34:34,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:34,417 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:34,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-20 11:34:34,418 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:34:34,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:34,418 INFO L85 PathProgramCache]: Analyzing trace with hash -2028639759, now seen corresponding path program 1 times [2022-11-20 11:34:34,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:34,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524163508] [2022-11-20 11:34:34,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:34,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:34:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:34:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:34:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:34:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:34:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:34:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:34:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:34:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:34:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:34:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:34:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:34:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:34:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:34:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 11:34:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 11:34:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 11:34:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 11:34:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 11:34:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 11:34:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 11:34:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-20 11:34:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:34,660 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:34:34,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:34,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524163508] [2022-11-20 11:34:34,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524163508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:34,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:34,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:34:34,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858479143] [2022-11-20 11:34:34,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:34,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:34:34,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:34,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:34:34,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:34:34,663 INFO L87 Difference]: Start difference. First operand 1384 states and 1842 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 11:34:37,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:37,937 INFO L93 Difference]: Finished difference Result 1384 states and 1842 transitions. [2022-11-20 11:34:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:34:37,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 4 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 148 [2022-11-20 11:34:37,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:37,942 INFO L225 Difference]: With dead ends: 1384 [2022-11-20 11:34:37,942 INFO L226 Difference]: Without dead ends: 1382 [2022-11-20 11:34:37,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:34:37,944 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 2389 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 2203 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2478 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 3237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:37,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2478 Valid, 1535 Invalid, 3237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2203 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-20 11:34:37,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2022-11-20 11:34:38,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1382. [2022-11-20 11:34:38,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 982 states have (on average 1.2769857433808554) internal successors, (1254), 1016 states have internal predecessors, (1254), 291 states have call successors, (291), 103 states have call predecessors, (291), 104 states have return successors, (295), 288 states have call predecessors, (295), 289 states have call successors, (295) [2022-11-20 11:34:38,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1840 transitions. [2022-11-20 11:34:38,267 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1840 transitions. Word has length 148 [2022-11-20 11:34:38,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:38,267 INFO L495 AbstractCegarLoop]: Abstraction has 1382 states and 1840 transitions. [2022-11-20 11:34:38,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 11:34:38,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1840 transitions. [2022-11-20 11:34:38,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-20 11:34:38,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:38,271 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:38,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-20 11:34:38,275 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:34:38,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:38,275 INFO L85 PathProgramCache]: Analyzing trace with hash 211813929, now seen corresponding path program 1 times [2022-11-20 11:34:38,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:38,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366512635] [2022-11-20 11:34:38,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:38,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:34:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:34:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:34:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:34:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:34:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:34:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:34:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:34:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:34:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:34:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:34:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:34:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:34:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:34:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 11:34:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 11:34:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 11:34:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 11:34:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 11:34:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 11:34:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 11:34:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-20 11:34:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-20 11:34:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,549 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:34:38,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:38,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366512635] [2022-11-20 11:34:38,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366512635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:38,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:38,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:34:38,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116872940] [2022-11-20 11:34:38,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:38,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:34:38,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:38,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:34:38,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:34:38,552 INFO L87 Difference]: Start difference. First operand 1382 states and 1840 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 11:34:41,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:41,729 INFO L93 Difference]: Finished difference Result 1382 states and 1840 transitions. [2022-11-20 11:34:41,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:34:41,730 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (25), 4 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 154 [2022-11-20 11:34:41,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:41,763 INFO L225 Difference]: With dead ends: 1382 [2022-11-20 11:34:41,764 INFO L226 Difference]: Without dead ends: 1380 [2022-11-20 11:34:41,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:34:41,765 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 2383 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 2199 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2471 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 3233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:41,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2471 Valid, 1535 Invalid, 3233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2199 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-20 11:34:41,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-11-20 11:34:41,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2022-11-20 11:34:41,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 981 states have (on average 1.2762487257900101) internal successors, (1252), 1014 states have internal predecessors, (1252), 291 states have call successors, (291), 103 states have call predecessors, (291), 104 states have return successors, (295), 288 states have call predecessors, (295), 289 states have call successors, (295) [2022-11-20 11:34:41,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1838 transitions. [2022-11-20 11:34:41,993 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1838 transitions. Word has length 154 [2022-11-20 11:34:41,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:41,993 INFO L495 AbstractCegarLoop]: Abstraction has 1380 states and 1838 transitions. [2022-11-20 11:34:41,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 11:34:41,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1838 transitions. [2022-11-20 11:34:41,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-20 11:34:41,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:41,997 INFO L195 NwaCegarLoop]: trace histogram [24, 8, 8, 8, 4, 4, 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] [2022-11-20 11:34:41,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-20 11:34:41,998 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting sm_cache_flushErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:34:41,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:41,998 INFO L85 PathProgramCache]: Analyzing trace with hash 6371595, now seen corresponding path program 1 times [2022-11-20 11:34:41,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:41,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722954506] [2022-11-20 11:34:41,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:41,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:42,058 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 11:34:42,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747681808] [2022-11-20 11:34:42,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:42,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:42,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:42,060 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:42,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:34:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:46,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 2046 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-20 11:34:46,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:46,533 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 3 proven. 300 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-20 11:34:46,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:34:48,873 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-20 11:34:48,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:48,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722954506] [2022-11-20 11:34:48,874 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 11:34:48,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747681808] [2022-11-20 11:34:48,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747681808] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:34:48,874 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:34:48,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 54 [2022-11-20 11:34:48,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358745415] [2022-11-20 11:34:48,875 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:34:48,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-20 11:34:48,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:48,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-20 11:34:48,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=781, Invalid=2081, Unknown=0, NotChecked=0, Total=2862 [2022-11-20 11:34:48,878 INFO L87 Difference]: Start difference. First operand 1380 states and 1838 transitions. Second operand has 54 states, 54 states have (on average 2.685185185185185) internal successors, (145), 54 states have internal predecessors, (145), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 11:35:09,345 WARN L233 SmtUtils]: Spent 11.58s on a formula simplification. DAG size of input: 126 DAG size of output: 16 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:35:30,058 WARN L233 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 116 DAG size of output: 16 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:38:04,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:38:04,931 INFO L93 Difference]: Finished difference Result 2884 states and 3911 transitions. [2022-11-20 11:38:04,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-11-20 11:38:04,931 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 2.685185185185185) internal successors, (145), 54 states have internal predecessors, (145), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 210 [2022-11-20 11:38:04,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:38:04,936 INFO L225 Difference]: With dead ends: 2884 [2022-11-20 11:38:04,937 INFO L226 Difference]: Without dead ends: 1518 [2022-11-20 11:38:04,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1783 ImplicationChecksByTransitivity, 194.4s TimeCoverageRelationStatistics Valid=3416, Invalid=7079, Unknown=11, NotChecked=0, Total=10506 [2022-11-20 11:38:04,944 INFO L413 NwaCegarLoop]: 1476 mSDtfsCounter, 1278 mSDsluCounter, 38224 mSDsCounter, 0 mSdLazyCounter, 3861 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 39700 SdHoareTripleChecker+Invalid, 4283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 3861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:38:04,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1278 Valid, 39700 Invalid, 4283 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [422 Valid, 3861 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-20 11:38:04,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2022-11-20 11:38:05,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1444. [2022-11-20 11:38:05,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1045 states have (on average 1.2947368421052632) internal successors, (1353), 1078 states have internal predecessors, (1353), 291 states have call successors, (291), 103 states have call predecessors, (291), 104 states have return successors, (295), 288 states have call predecessors, (295), 289 states have call successors, (295) [2022-11-20 11:38:05,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1939 transitions. [2022-11-20 11:38:05,271 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1939 transitions. Word has length 210 [2022-11-20 11:38:05,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:38:05,272 INFO L495 AbstractCegarLoop]: Abstraction has 1444 states and 1939 transitions. [2022-11-20 11:38:05,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.685185185185185) internal successors, (145), 54 states have internal predecessors, (145), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 11:38:05,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1939 transitions. [2022-11-20 11:38:05,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-20 11:38:05,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:38:05,275 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:05,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:05,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:38:05,476 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:38:05,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:05,476 INFO L85 PathProgramCache]: Analyzing trace with hash -694502059, now seen corresponding path program 1 times [2022-11-20 11:38:05,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:05,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347297558] [2022-11-20 11:38:05,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:05,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:38:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:38:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:38:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:38:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:38:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:38:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:38:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:38:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:38:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:38:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:38:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:38:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:38:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:38:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:38:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 11:38:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 11:38:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 11:38:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 11:38:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 11:38:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 11:38:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 11:38:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-20 11:38:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-20 11:38:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-20 11:38:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,755 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:38:05,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:05,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347297558] [2022-11-20 11:38:05,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347297558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:05,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:05,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:38:05,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730022813] [2022-11-20 11:38:05,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:05,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:38:05,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:05,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:38:05,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:38:05,758 INFO L87 Difference]: Start difference. First operand 1444 states and 1939 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 11:38:09,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:38:09,314 INFO L93 Difference]: Finished difference Result 1444 states and 1939 transitions. [2022-11-20 11:38:09,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:38:09,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (26), 4 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 160 [2022-11-20 11:38:09,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:38:09,318 INFO L225 Difference]: With dead ends: 1444 [2022-11-20 11:38:09,318 INFO L226 Difference]: Without dead ends: 1442 [2022-11-20 11:38:09,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:38:09,323 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 2377 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 2195 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2464 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 3229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:38:09,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2464 Valid, 1535 Invalid, 3229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2195 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-20 11:38:09,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2022-11-20 11:38:09,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1442. [2022-11-20 11:38:09,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1044 states have (on average 1.2940613026819923) internal successors, (1351), 1076 states have internal predecessors, (1351), 291 states have call successors, (291), 103 states have call predecessors, (291), 104 states have return successors, (295), 288 states have call predecessors, (295), 289 states have call successors, (295) [2022-11-20 11:38:09,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 1937 transitions. [2022-11-20 11:38:09,577 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 1937 transitions. Word has length 160 [2022-11-20 11:38:09,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:38:09,577 INFO L495 AbstractCegarLoop]: Abstraction has 1442 states and 1937 transitions. [2022-11-20 11:38:09,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 11:38:09,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 1937 transitions. [2022-11-20 11:38:09,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-20 11:38:09,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:38:09,581 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:09,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-20 11:38:09,581 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:38:09,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:09,581 INFO L85 PathProgramCache]: Analyzing trace with hash -383356596, now seen corresponding path program 1 times [2022-11-20 11:38:09,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:09,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404745389] [2022-11-20 11:38:09,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:09,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:38:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:38:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:38:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:38:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:38:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 11:38:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:38:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:38:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 11:38:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:38:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:38:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:38:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:38:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:38:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:38:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 11:38:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 11:38:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 11:38:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 11:38:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-20 11:38:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 11:38:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 11:38:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-20 11:38:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-20 11:38:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-20 11:38:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-20 11:38:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,855 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:38:09,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:09,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404745389] [2022-11-20 11:38:09,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404745389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:09,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:09,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:38:09,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869825523] [2022-11-20 11:38:09,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:09,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:38:09,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:09,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:38:09,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:38:09,858 INFO L87 Difference]: Start difference. First operand 1442 states and 1937 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 11:38:13,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:38:13,345 INFO L93 Difference]: Finished difference Result 1442 states and 1937 transitions. [2022-11-20 11:38:13,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:38:13,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (27), 4 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 166 [2022-11-20 11:38:13,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:38:13,349 INFO L225 Difference]: With dead ends: 1442 [2022-11-20 11:38:13,349 INFO L226 Difference]: Without dead ends: 1253 [2022-11-20 11:38:13,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:38:13,351 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 2368 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 2194 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2454 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 3228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 2194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:38:13,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2454 Valid, 1535 Invalid, 3228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 2194 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-20 11:38:13,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2022-11-20 11:38:13,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1253. [2022-11-20 11:38:13,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 929 states have (on average 1.32508073196986) internal successors, (1231), 958 states have internal predecessors, (1231), 241 states have call successors, (241), 79 states have call predecessors, (241), 81 states have return successors, (247), 240 states have call predecessors, (247), 241 states have call successors, (247) [2022-11-20 11:38:13,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1719 transitions. [2022-11-20 11:38:13,654 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1719 transitions. Word has length 166 [2022-11-20 11:38:13,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:38:13,654 INFO L495 AbstractCegarLoop]: Abstraction has 1253 states and 1719 transitions. [2022-11-20 11:38:13,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 11:38:13,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1719 transitions. [2022-11-20 11:38:13,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-11-20 11:38:13,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:38:13,656 INFO L195 NwaCegarLoop]: trace histogram [50, 8, 8, 8, 4, 4, 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] [2022-11-20 11:38:13,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-20 11:38:13,657 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting sm_cache_flushErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2022-11-20 11:38:13,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:13,657 INFO L85 PathProgramCache]: Analyzing trace with hash -568184437, now seen corresponding path program 2 times [2022-11-20 11:38:13,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:13,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259747240] [2022-11-20 11:38:13,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:13,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:13,728 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 11:38:13,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1316469064] [2022-11-20 11:38:13,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:38:13,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:38:13,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:13,731 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:38:13,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7e8cf-080d-4143-a72e-724d2d2ca93d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 11:38:54,109 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:38:54,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:38:54,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 2436 conjuncts, 105 conjunts are in the unsatisfiable core [2022-11-20 11:38:54,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:55,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1422 backedges. 3 proven. 1275 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-20 11:38:55,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:39:03,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1422 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-20 11:39:03,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:39:03,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259747240] [2022-11-20 11:39:03,736 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 11:39:03,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316469064] [2022-11-20 11:39:03,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316469064] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:39:03,736 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:39:03,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 106 [2022-11-20 11:39:03,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713361721] [2022-11-20 11:39:03,737 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:39:03,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-11-20 11:39:03,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:39:03,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-11-20 11:39:03,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2913, Invalid=8217, Unknown=0, NotChecked=0, Total=11130 [2022-11-20 11:39:03,741 INFO L87 Difference]: Start difference. First operand 1253 states and 1719 transitions. Second operand has 106 states, 106 states have (on average 1.8584905660377358) internal successors, (197), 106 states have internal predecessors, (197), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 11:40:02,771 WARN L233 SmtUtils]: Spent 50.32s on a formula simplification. DAG size of input: 261 DAG size of output: 16 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:41:02,168 WARN L233 SmtUtils]: Spent 54.64s on a formula simplification. DAG size of input: 256 DAG size of output: 16 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:41:59,948 WARN L233 SmtUtils]: Spent 43.62s on a formula simplification. DAG size of input: 251 DAG size of output: 16 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:43:06,587 WARN L233 SmtUtils]: Spent 55.22s on a formula simplification. DAG size of input: 246 DAG size of output: 16 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:43:45,081 WARN L233 SmtUtils]: Spent 23.02s on a formula simplification. DAG size of input: 241 DAG size of output: 16 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:44:32,128 WARN L233 SmtUtils]: Spent 30.95s on a formula simplification. DAG size of input: 236 DAG size of output: 16 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)