./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--block--rsxx--rsxx.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 017a921c8c43c4a2a11daf67a2d7f6c852b9597686d5b2eb3df4edf6699bf55b --- 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-5e519f3 [2022-11-03 04:02:35,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:02:35,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:02:35,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:02:35,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:02:35,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:02:35,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:02:35,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:02:35,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:02:35,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:02:35,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:02:35,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:02:35,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:02:35,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:02:35,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:02:35,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:02:35,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:02:35,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:02:35,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:02:35,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:02:35,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:02:35,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:02:35,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:02:35,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:02:35,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:02:35,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:02:35,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:02:35,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:02:35,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:02:35,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:02:35,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:02:35,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:02:35,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:02:35,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:02:35,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:02:35,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:02:35,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:02:35,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:02:35,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:02:35,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:02:35,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:02:35,779 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 04:02:35,808 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:02:35,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:02:35,809 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:02:35,809 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:02:35,810 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:02:35,810 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:02:35,810 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:02:35,811 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:02:35,811 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:02:35,811 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:02:35,811 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:02:35,812 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:02:35,812 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:02:35,812 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:02:35,812 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:02:35,812 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:02:35,813 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:02:35,813 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:02:35,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:02:35,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:02:35,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:02:35,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:02:35,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:02:35,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:02:35,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:02:35,815 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:02:35,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:02:35,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:02:35,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:02:35,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:02:35,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:02:35,817 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:02:35,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:02:35,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:02:35,818 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:02:35,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:02:35,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:02:35,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:02:35,818 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_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 017a921c8c43c4a2a11daf67a2d7f6c852b9597686d5b2eb3df4edf6699bf55b [2022-11-03 04:02:36,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:02:36,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:02:36,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:02:36,250 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:02:36,252 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:02:36,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i [2022-11-03 04:02:36,343 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/data/cbd817018/d94d30bdb9ee4ec3b77b7b1d817778cc/FLAGe63982b98 [2022-11-03 04:02:37,649 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:02:37,650 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i [2022-11-03 04:02:37,742 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/data/cbd817018/d94d30bdb9ee4ec3b77b7b1d817778cc/FLAGe63982b98 [2022-11-03 04:02:37,790 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/data/cbd817018/d94d30bdb9ee4ec3b77b7b1d817778cc [2022-11-03 04:02:37,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:02:37,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:02:37,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:02:37,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:02:37,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:02:37,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:02:37" (1/1) ... [2022-11-03 04:02:37,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eb5c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:37, skipping insertion in model container [2022-11-03 04:02:37,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:02:37" (1/1) ... [2022-11-03 04:02:37,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:02:38,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:02:45,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[475253,475266] [2022-11-03 04:02:45,428 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[475398,475411] [2022-11-03 04:02:45,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[475544,475557] [2022-11-03 04:02:45,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[475709,475722] [2022-11-03 04:02:45,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[475867,475880] [2022-11-03 04:02:45,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[476025,476038] [2022-11-03 04:02:45,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[476183,476196] [2022-11-03 04:02:45,432 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[476343,476356] [2022-11-03 04:02:45,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[476502,476515] [2022-11-03 04:02:45,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[476641,476654] [2022-11-03 04:02:45,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[476783,476796] [2022-11-03 04:02:45,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[476932,476945] [2022-11-03 04:02:45,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[477071,477084] [2022-11-03 04:02:45,436 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[477226,477239] [2022-11-03 04:02:45,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[477386,477399] [2022-11-03 04:02:45,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[477537,477550] [2022-11-03 04:02:45,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[477688,477701] [2022-11-03 04:02:45,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[477840,477853] [2022-11-03 04:02:45,442 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[477989,478002] [2022-11-03 04:02:45,442 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[478137,478150] [2022-11-03 04:02:45,443 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[478294,478307] [2022-11-03 04:02:45,444 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[478443,478456] [2022-11-03 04:02:45,444 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[478599,478612] [2022-11-03 04:02:45,445 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[478752,478765] [2022-11-03 04:02:45,445 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[478898,478911] [2022-11-03 04:02:45,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[479041,479054] [2022-11-03 04:02:45,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[479193,479206] [2022-11-03 04:02:45,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[479339,479352] [2022-11-03 04:02:45,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[479484,479497] [2022-11-03 04:02:45,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[479638,479651] [2022-11-03 04:02:45,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[479789,479802] [2022-11-03 04:02:45,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[479944,479957] [2022-11-03 04:02:45,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[480096,480109] [2022-11-03 04:02:45,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[480251,480264] [2022-11-03 04:02:45,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[480415,480428] [2022-11-03 04:02:45,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[480571,480584] [2022-11-03 04:02:45,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[480735,480748] [2022-11-03 04:02:45,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[480877,480890] [2022-11-03 04:02:45,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[481035,481048] [2022-11-03 04:02:45,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[481202,481215] [2022-11-03 04:02:45,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[481361,481374] [2022-11-03 04:02:45,471 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[481520,481533] [2022-11-03 04:02:45,471 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[481669,481682] [2022-11-03 04:02:45,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[481816,481829] [2022-11-03 04:02:45,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[481955,481968] [2022-11-03 04:02:45,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[482118,482131] [2022-11-03 04:02:45,474 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[482284,482297] [2022-11-03 04:02:45,474 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[482448,482461] [2022-11-03 04:02:45,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[482613,482626] [2022-11-03 04:02:45,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[482778,482791] [2022-11-03 04:02:45,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[482944,482957] [2022-11-03 04:02:45,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[483109,483122] [2022-11-03 04:02:45,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[483276,483289] [2022-11-03 04:02:45,478 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[483436,483449] [2022-11-03 04:02:45,478 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[483598,483611] [2022-11-03 04:02:45,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[483757,483770] [2022-11-03 04:02:45,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[483903,483916] [2022-11-03 04:02:45,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[484046,484059] [2022-11-03 04:02:45,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[484190,484203] [2022-11-03 04:02:45,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[484333,484346] [2022-11-03 04:02:45,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[484477,484490] [2022-11-03 04:02:45,483 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[484618,484631] [2022-11-03 04:02:45,483 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[484756,484769] [2022-11-03 04:02:45,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[484914,484927] [2022-11-03 04:02:45,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[485073,485086] [2022-11-03 04:02:45,485 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[485229,485242] [2022-11-03 04:02:45,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[485378,485391] [2022-11-03 04:02:45,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[485530,485543] [2022-11-03 04:02:45,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[485681,485694] [2022-11-03 04:02:45,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[485830,485843] [2022-11-03 04:02:45,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[485982,485995] [2022-11-03 04:02:45,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[486130,486143] [2022-11-03 04:02:45,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[486283,486296] [2022-11-03 04:02:45,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[486434,486447] [2022-11-03 04:02:45,491 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[486584,486597] [2022-11-03 04:02:45,491 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[486731,486744] [2022-11-03 04:02:45,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[486882,486895] [2022-11-03 04:02:45,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[487033,487046] [2022-11-03 04:02:45,493 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[487181,487194] [2022-11-03 04:02:45,494 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[487347,487360] [2022-11-03 04:02:45,494 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[487516,487529] [2022-11-03 04:02:45,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[487683,487696] [2022-11-03 04:02:45,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[487851,487864] [2022-11-03 04:02:45,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[488001,488014] [2022-11-03 04:02:45,497 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[488148,488161] [2022-11-03 04:02:45,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[488309,488322] [2022-11-03 04:02:45,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[488479,488492] [2022-11-03 04:02:45,503 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[488641,488654] [2022-11-03 04:02:45,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:02:45,572 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:02:46,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[475253,475266] [2022-11-03 04:02:46,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[475398,475411] [2022-11-03 04:02:46,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[475544,475557] [2022-11-03 04:02:46,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[475709,475722] [2022-11-03 04:02:46,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[475867,475880] [2022-11-03 04:02:46,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[476025,476038] [2022-11-03 04:02:46,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[476183,476196] [2022-11-03 04:02:46,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[476343,476356] [2022-11-03 04:02:46,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[476502,476515] [2022-11-03 04:02:46,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[476641,476654] [2022-11-03 04:02:46,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[476783,476796] [2022-11-03 04:02:46,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[476932,476945] [2022-11-03 04:02:46,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[477071,477084] [2022-11-03 04:02:46,423 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[477226,477239] [2022-11-03 04:02:46,423 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[477386,477399] [2022-11-03 04:02:46,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[477537,477550] [2022-11-03 04:02:46,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[477688,477701] [2022-11-03 04:02:46,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[477840,477853] [2022-11-03 04:02:46,426 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[477989,478002] [2022-11-03 04:02:46,427 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[478137,478150] [2022-11-03 04:02:46,428 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[478294,478307] [2022-11-03 04:02:46,428 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[478443,478456] [2022-11-03 04:02:46,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[478599,478612] [2022-11-03 04:02:46,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[478752,478765] [2022-11-03 04:02:46,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[478898,478911] [2022-11-03 04:02:46,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[479041,479054] [2022-11-03 04:02:46,432 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[479193,479206] [2022-11-03 04:02:46,432 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[479339,479352] [2022-11-03 04:02:46,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[479484,479497] [2022-11-03 04:02:46,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[479638,479651] [2022-11-03 04:02:46,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[479789,479802] [2022-11-03 04:02:46,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[479944,479957] [2022-11-03 04:02:46,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[480096,480109] [2022-11-03 04:02:46,436 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[480251,480264] [2022-11-03 04:02:46,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[480415,480428] [2022-11-03 04:02:46,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[480571,480584] [2022-11-03 04:02:46,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[480735,480748] [2022-11-03 04:02:46,439 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[480877,480890] [2022-11-03 04:02:46,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[481035,481048] [2022-11-03 04:02:46,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[481202,481215] [2022-11-03 04:02:46,441 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[481361,481374] [2022-11-03 04:02:46,442 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[481520,481533] [2022-11-03 04:02:46,442 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[481669,481682] [2022-11-03 04:02:46,443 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[481816,481829] [2022-11-03 04:02:46,444 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[481955,481968] [2022-11-03 04:02:46,444 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[482118,482131] [2022-11-03 04:02:46,445 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[482284,482297] [2022-11-03 04:02:46,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[482448,482461] [2022-11-03 04:02:46,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[482613,482626] [2022-11-03 04:02:46,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[482778,482791] [2022-11-03 04:02:46,448 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[482944,482957] [2022-11-03 04:02:46,448 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[483109,483122] [2022-11-03 04:02:46,449 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[483276,483289] [2022-11-03 04:02:46,450 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[483436,483449] [2022-11-03 04:02:46,450 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[483598,483611] [2022-11-03 04:02:46,451 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[483757,483770] [2022-11-03 04:02:46,452 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[483903,483916] [2022-11-03 04:02:46,452 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[484046,484059] [2022-11-03 04:02:46,453 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[484190,484203] [2022-11-03 04:02:46,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[484333,484346] [2022-11-03 04:02:46,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[484477,484490] [2022-11-03 04:02:46,455 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[484618,484631] [2022-11-03 04:02:46,456 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[484756,484769] [2022-11-03 04:02:46,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[484914,484927] [2022-11-03 04:02:46,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[485073,485086] [2022-11-03 04:02:46,458 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[485229,485242] [2022-11-03 04:02:46,459 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[485378,485391] [2022-11-03 04:02:46,459 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[485530,485543] [2022-11-03 04:02:46,460 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[485681,485694] [2022-11-03 04:02:46,461 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[485830,485843] [2022-11-03 04:02:46,461 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[485982,485995] [2022-11-03 04:02:46,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[486130,486143] [2022-11-03 04:02:46,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[486283,486296] [2022-11-03 04:02:46,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[486434,486447] [2022-11-03 04:02:46,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[486584,486597] [2022-11-03 04:02:46,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[486731,486744] [2022-11-03 04:02:46,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[486882,486895] [2022-11-03 04:02:46,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[487033,487046] [2022-11-03 04:02:46,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[487181,487194] [2022-11-03 04:02:46,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[487347,487360] [2022-11-03 04:02:46,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[487516,487529] [2022-11-03 04:02:46,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[487683,487696] [2022-11-03 04:02:46,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[487851,487864] [2022-11-03 04:02:46,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[488001,488014] [2022-11-03 04:02:46,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[488148,488161] [2022-11-03 04:02:46,471 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[488309,488322] [2022-11-03 04:02:46,471 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[488479,488492] [2022-11-03 04:02:46,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i[488641,488654] [2022-11-03 04:02:46,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:02:47,005 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:02:47,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:47 WrapperNode [2022-11-03 04:02:47,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:02:47,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:02:47,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:02:47,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:02:47,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:47" (1/1) ... [2022-11-03 04:02:47,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:47" (1/1) ... [2022-11-03 04:02:47,504 INFO L138 Inliner]: procedures = 858, calls = 4033, calls flagged for inlining = 408, calls inlined = 286, statements flattened = 7206 [2022-11-03 04:02:47,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:02:47,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:02:47,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:02:47,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:02:47,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:47" (1/1) ... [2022-11-03 04:02:47,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:47" (1/1) ... [2022-11-03 04:02:47,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:47" (1/1) ... [2022-11-03 04:02:47,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:47" (1/1) ... [2022-11-03 04:02:47,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:47" (1/1) ... [2022-11-03 04:02:47,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:47" (1/1) ... [2022-11-03 04:02:47,862 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:47" (1/1) ... [2022-11-03 04:02:47,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:47" (1/1) ... [2022-11-03 04:02:47,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:02:47,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:02:47,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:02:47,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:02:47,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:47" (1/1) ... [2022-11-03 04:02:47,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:02:47,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:02:48,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:02:48,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:02:48,083 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2022-11-03 04:02:48,083 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2022-11-03 04:02:48,083 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2022-11-03 04:02:48,083 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2022-11-03 04:02:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure __disable_intr [2022-11-03 04:02:48,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __disable_intr [2022-11-03 04:02:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-03 04:02:48,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-03 04:02:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 04:02:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 04:02:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_cleanup_dma_queue [2022-11-03 04:02:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_cleanup_dma_queue [2022-11-03 04:02:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 04:02:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 04:02:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2022-11-03 04:02:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2022-11-03 04:02:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-03 04:02:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-03 04:02:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_dev_cleanup [2022-11-03 04:02:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_dev_cleanup [2022-11-03 04:02:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_cram_write [2022-11-03 04:02:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_cram_write [2022-11-03 04:02:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 04:02:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 04:02:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure config_data_swab [2022-11-03 04:02:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure config_data_swab [2022-11-03 04:02:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2022-11-03 04:02:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2022-11-03 04:02:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_105 [2022-11-03 04:02:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_105 [2022-11-03 04:02:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_101 [2022-11-03 04:02:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_101 [2022-11-03 04:02:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_102 [2022-11-03 04:02:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_102 [2022-11-03 04:02:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_detach_dev [2022-11-03 04:02:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_detach_dev [2022-11-03 04:02:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-03 04:02:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-03 04:02:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 04:02:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 04:02:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-03 04:02:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-03 04:02:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 04:02:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 04:02:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_irq_lock_of_rsxx_cardinfo [2022-11-03 04:02:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_irq_lock_of_rsxx_cardinfo [2022-11-03 04:02:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 04:02:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 04:02:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_110 [2022-11-03 04:02:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_110 [2022-11-03 04:02:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-03 04:02:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-03 04:02:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:02:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-03 04:02:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-03 04:02:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 04:02:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 04:02:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-11-03 04:02:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-11-03 04:02:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 04:02:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 04:02:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 04:02:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 04:02:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-03 04:02:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-03 04:02:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-03 04:02:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-03 04:02:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure timer_pending [2022-11-03 04:02:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_pending [2022-11-03 04:02:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:02:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 04:02:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 04:02:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 04:02:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 04:02:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:02:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_NOT_ARG_SIGN [2022-11-03 04:02:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_NOT_ARG_SIGN [2022-11-03 04:02:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 04:02:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 04:02:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:02:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2022-11-03 04:02:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2022-11-03 04:02:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-03 04:02:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-03 04:02:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 04:02:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 04:02:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 04:02:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 04:02:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-03 04:02:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-03 04:02:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure __issue_creg_rw [2022-11-03 04:02:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __issue_creg_rw [2022-11-03 04:02:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:02:48,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:02:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 04:02:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-03 04:02:48,255 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-03 04:02:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_dev_lock_of_rsxx_cardinfo [2022-11-03 04:02:48,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_dev_lock_of_rsxx_cardinfo [2022-11-03 04:02:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-03 04:02:48,256 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-03 04:02:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 04:02:48,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 04:02:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_getgeo [2022-11-03 04:02:48,257 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_getgeo [2022-11-03 04:02:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-03 04:02:48,257 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-03 04:02:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_complete_dma [2022-11-03 04:02:48,258 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_complete_dma [2022-11-03 04:02:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 04:02:48,258 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 04:02:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-03 04:02:48,259 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-03 04:02:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_eeh_failure [2022-11-03 04:02:48,259 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_eeh_failure [2022-11-03 04:02:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure card_shutdown [2022-11-03 04:02:48,260 INFO L138 BoogieDeclarations]: Found implementation of procedure card_shutdown [2022-11-03 04:02:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-03 04:02:48,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-03 04:02:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_cram_read [2022-11-03 04:02:48,261 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_cram_read [2022-11-03 04:02:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-03 04:02:48,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-03 04:02:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:02:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 04:02:48,262 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 04:02:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure creg_cmd_timed_out [2022-11-03 04:02:48,263 INFO L138 BoogieDeclarations]: Found implementation of procedure creg_cmd_timed_out [2022-11-03 04:02:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-03 04:02:48,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-03 04:02:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:02:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2022-11-03 04:02:48,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2022-11-03 04:02:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure creg_kick_queue [2022-11-03 04:02:48,264 INFO L138 BoogieDeclarations]: Found implementation of procedure creg_kick_queue [2022-11-03 04:02:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 04:02:48,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 04:02:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 04:02:48,265 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 04:02:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_dma_cleanup [2022-11-03 04:02:48,265 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_dma_cleanup [2022-11-03 04:02:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 04:02:48,265 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 04:02:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 04:02:48,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 04:02:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_100 [2022-11-03 04:02:48,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_100 [2022-11-03 04:02:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 04:02:48,267 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 04:02:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-03 04:02:48,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-03 04:02:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-03 04:02:48,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-03 04:02:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-03 04:02:48,268 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-03 04:02:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_pci_shutdown [2022-11-03 04:02:48,268 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_pci_shutdown [2022-11-03 04:02:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure issue_creg_rw [2022-11-03 04:02:48,268 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_creg_rw [2022-11-03 04:02:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_card_state_to_str [2022-11-03 04:02:48,269 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_card_state_to_str [2022-11-03 04:02:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_disable_ier [2022-11-03 04:02:48,269 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_disable_ier [2022-11-03 04:02:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 04:02:48,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 04:02:48,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:02:48,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 04:02:48,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 04:02:48,270 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2022-11-03 04:02:48,270 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2022-11-03 04:02:48,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_104 [2022-11-03 04:02:48,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_104 [2022-11-03 04:02:48,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_100 [2022-11-03 04:02:48,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_100 [2022-11-03 04:02:48,271 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 04:02:48,272 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 04:02:48,272 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_enable_ier_and_isr [2022-11-03 04:02:48,272 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_enable_ier_and_isr [2022-11-03 04:02:48,272 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-03 04:02:48,272 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-03 04:02:48,272 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_get_card_size8 [2022-11-03 04:02:48,273 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_get_card_size8 [2022-11-03 04:02:48,273 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2022-11-03 04:02:48,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ffs [2022-11-03 04:02:48,273 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-03 04:02:48,273 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-03 04:02:48,273 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_size [2022-11-03 04:02:48,274 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_size [2022-11-03 04:02:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure __enable_intr [2022-11-03 04:02:48,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __enable_intr [2022-11-03 04:02:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-03 04:02:48,274 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-03 04:02:48,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_queue_lock_of_rsxx_dma_ctrl [2022-11-03 04:02:48,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_queue_lock_of_rsxx_dma_ctrl [2022-11-03 04:02:48,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2022-11-03 04:02:48,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2022-11-03 04:02:48,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_98 [2022-11-03 04:02:48,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_98 [2022-11-03 04:02:48,276 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 04:02:48,276 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 04:02:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_99 [2022-11-03 04:02:48,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_99 [2022-11-03 04:02:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-03 04:02:48,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-03 04:02:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 04:02:48,279 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 04:02:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 04:02:48,280 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 04:02:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_hw_buffers_init [2022-11-03 04:02:48,280 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_hw_buffers_init [2022-11-03 04:02:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-03 04:02:48,280 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-03 04:02:48,280 INFO L130 BoogieDeclarations]: Found specification of procedure config_data_crc32 [2022-11-03 04:02:48,281 INFO L138 BoogieDeclarations]: Found implementation of procedure config_data_crc32 [2022-11-03 04:02:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_attr_pci_regs_open [2022-11-03 04:02:48,281 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_attr_pci_regs_open [2022-11-03 04:02:48,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 04:02:48,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 04:02:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_dma_configure [2022-11-03 04:02:48,282 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_dma_configure [2022-11-03 04:02:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 04:02:48,282 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 04:02:48,282 INFO L130 BoogieDeclarations]: Found specification of procedure creg_queue_cmd [2022-11-03 04:02:48,282 INFO L138 BoogieDeclarations]: Found implementation of procedure creg_queue_cmd [2022-11-03 04:02:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_free_dma [2022-11-03 04:02:48,283 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_free_dma [2022-11-03 04:02:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-03 04:02:48,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-03 04:02:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_dma_cancel [2022-11-03 04:02:48,284 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_dma_cancel [2022-11-03 04:02:48,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-03 04:02:48,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-03 04:02:48,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2022-11-03 04:02:48,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2022-11-03 04:02:48,284 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_get_card_state [2022-11-03 04:02:48,285 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_get_card_state [2022-11-03 04:02:48,285 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 04:02:48,285 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 04:02:48,285 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2022-11-03 04:02:48,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2022-11-03 04:02:48,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 04:02:48,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 04:02:48,286 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-03 04:02:48,286 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-03 04:02:48,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 04:02:48,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 04:02:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-03 04:02:48,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-03 04:02:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2022-11-03 04:02:48,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2022-11-03 04:02:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2022-11-03 04:02:48,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2022-11-03 04:02:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:02:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-03 04:02:48,288 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-03 04:02:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_issue_card_cmd [2022-11-03 04:02:48,288 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_issue_card_cmd [2022-11-03 04:02:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-03 04:02:48,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-03 04:02:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-03 04:02:48,289 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-03 04:02:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 04:02:48,290 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 04:02:48,290 INFO L130 BoogieDeclarations]: Found specification of procedure CR_INTR_DMA [2022-11-03 04:02:48,290 INFO L138 BoogieDeclarations]: Found implementation of procedure CR_INTR_DMA [2022-11-03 04:02:48,290 INFO L130 BoogieDeclarations]: Found specification of procedure push_tracker [2022-11-03 04:02:48,290 INFO L138 BoogieDeclarations]: Found implementation of procedure push_tracker [2022-11-03 04:02:48,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 04:02:48,291 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 04:02:48,291 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 04:02:48,291 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_pci_probe [2022-11-03 04:02:48,291 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_pci_probe [2022-11-03 04:02:48,292 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 04:02:48,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 04:02:48,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 04:02:48,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_blk_cleanup_queue [2022-11-03 04:02:48,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_blk_cleanup_queue [2022-11-03 04:02:48,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-03 04:02:48,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-03 04:02:48,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-03 04:02:48,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-03 04:02:48,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 04:02:48,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 04:02:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 04:02:48,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 04:02:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure CREG_DATA [2022-11-03 04:02:48,294 INFO L138 BoogieDeclarations]: Found implementation of procedure CREG_DATA [2022-11-03 04:02:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-03 04:02:48,294 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-03 04:02:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 04:02:48,295 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 04:02:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_99 [2022-11-03 04:02:48,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_99 [2022-11-03 04:02:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-03 04:02:48,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-03 04:02:48,296 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_creg_write [2022-11-03 04:02:48,296 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_creg_write [2022-11-03 04:02:48,296 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-11-03 04:02:48,296 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-11-03 04:02:48,296 INFO L130 BoogieDeclarations]: Found specification of procedure dma_intr_coal_val [2022-11-03 04:02:48,297 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_intr_coal_val [2022-11-03 04:02:48,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 04:02:48,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 04:02:48,297 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_pci_remove [2022-11-03 04:02:48,297 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_pci_remove [2022-11-03 04:02:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_96 [2022-11-03 04:02:48,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_96 [2022-11-03 04:02:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2022-11-03 04:02:48,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2022-11-03 04:02:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure read_hw_log_done [2022-11-03 04:02:48,298 INFO L138 BoogieDeclarations]: Found implementation of procedure read_hw_log_done [2022-11-03 04:02:48,299 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 04:02:48,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 04:02:48,299 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_dma_destroy [2022-11-03 04:02:48,299 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_dma_destroy [2022-11-03 04:02:48,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-03 04:02:48,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-03 04:02:48,300 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_dma_queue_reset [2022-11-03 04:02:48,300 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_dma_queue_reset [2022-11-03 04:02:48,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_96___0 [2022-11-03 04:02:48,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_96___0 [2022-11-03 04:02:48,303 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-03 04:02:48,303 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-03 04:02:48,304 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-03 04:02:48,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-03 04:02:48,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 04:02:48,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 04:02:48,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 04:02:48,304 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_creg_read [2022-11-03 04:02:48,306 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_creg_read [2022-11-03 04:02:48,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 04:02:48,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 04:02:48,307 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-03 04:02:48,307 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-03 04:02:48,307 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-11-03 04:02:48,307 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-11-03 04:02:48,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-03 04:02:48,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-03 04:02:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_irq_lock_of_rsxx_cardinfo [2022-11-03 04:02:48,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_irq_lock_of_rsxx_cardinfo [2022-11-03 04:02:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 04:02:48,308 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 04:02:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2022-11-03 04:02:48,308 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2022-11-03 04:02:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure dma_engine_stalled [2022-11-03 04:02:48,309 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_engine_stalled [2022-11-03 04:02:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-03 04:02:48,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-03 04:02:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_reg_access [2022-11-03 04:02:48,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_reg_access [2022-11-03 04:02:48,310 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_attr_stats_open [2022-11-03 04:02:48,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_attr_stats_open [2022-11-03 04:02:48,310 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-03 04:02:48,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-03 04:02:48,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 04:02:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 04:02:48,311 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 04:02:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_sched_completion__wait_without_init [2022-11-03 04:02:48,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_sched_completion__wait_without_init [2022-11-03 04:02:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-03 04:02:48,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-03 04:02:48,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_dev_lock_of_rsxx_cardinfo [2022-11-03 04:02:48,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_dev_lock_of_rsxx_cardinfo [2022-11-03 04:02:48,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 04:02:48,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 04:02:48,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_97___0 [2022-11-03 04:02:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_97___0 [2022-11-03 04:02:48,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 04:02:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 04:02:48,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_109 [2022-11-03 04:02:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_109 [2022-11-03 04:02:48,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 04:02:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 04:02:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-03 04:02:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-03 04:02:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-03 04:02:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-03 04:02:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-03 04:02:48,315 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-03 04:02:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-03 04:02:48,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-03 04:02:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 04:02:48,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-03 04:02:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 04:02:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 04:02:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-03 04:02:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-03 04:02:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-03 04:02:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-03 04:02:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-03 04:02:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-03 04:02:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_blkdev_ioctl [2022-11-03 04:02:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_blkdev_ioctl [2022-11-03 04:02:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_disable_ier_and_isr [2022-11-03 04:02:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_disable_ier_and_isr [2022-11-03 04:02:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-03 04:02:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-03 04:02:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure get_tracker_dma [2022-11-03 04:02:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tracker_dma [2022-11-03 04:02:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 04:02:48,319 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 04:02:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_queue_lock_of_rsxx_dma_ctrl [2022-11-03 04:02:48,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_queue_lock_of_rsxx_dma_ctrl [2022-11-03 04:02:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_101 [2022-11-03 04:02:48,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_101 [2022-11-03 04:02:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_read_hw_log [2022-11-03 04:02:48,320 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_read_hw_log [2022-11-03 04:02:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 04:02:48,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 04:02:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 04:02:48,320 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 04:02:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-03 04:02:48,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-03 04:02:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-03 04:02:48,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-03 04:02:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 04:02:48,321 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 04:02:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2022-11-03 04:02:48,322 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2022-11-03 04:02:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 04:02:48,322 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 04:02:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 04:02:48,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 04:02:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:02:49,731 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:02:49,742 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:02:49,910 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 04:03:02,663 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:03:04,922 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:03:04,923 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 04:03:04,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:03:04 BoogieIcfgContainer [2022-11-03 04:03:04,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:03:04,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:03:04,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:03:04,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:03:04,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:02:37" (1/3) ... [2022-11-03 04:03:04,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63335e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:03:04, skipping insertion in model container [2022-11-03 04:03:04,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:47" (2/3) ... [2022-11-03 04:03:04,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63335e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:03:04, skipping insertion in model container [2022-11-03 04:03:04,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:03:04" (3/3) ... [2022-11-03 04:03:04,951 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--rsxx--rsxx.ko.cil.i [2022-11-03 04:03:04,981 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:03:04,981 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2022-11-03 04:03:05,153 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:03:05,167 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2d077ccc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:03:05,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-11-03 04:03:05,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 2244 states, 1260 states have (on average 1.2769841269841269) internal successors, (1609), 1342 states have internal predecessors, (1609), 741 states have call successors, (741), 204 states have call predecessors, (741), 203 states have return successors, (735), 726 states have call predecessors, (735), 735 states have call successors, (735) [2022-11-03 04:03:05,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-03 04:03:05,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:05,197 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 04:03:05,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:03:05,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:05,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1369386417, now seen corresponding path program 1 times [2022-11-03 04:03:05,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:05,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512383647] [2022-11-03 04:03:05,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:05,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:06,723 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:03:06,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:06,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512383647] [2022-11-03 04:03:06,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512383647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:06,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:06,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:03:06,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448240978] [2022-11-03 04:03:06,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:06,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:03:06,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:06,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:03:06,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:03:06,793 INFO L87 Difference]: Start difference. First operand has 2244 states, 1260 states have (on average 1.2769841269841269) internal successors, (1609), 1342 states have internal predecessors, (1609), 741 states have call successors, (741), 204 states have call predecessors, (741), 203 states have return successors, (735), 726 states have call predecessors, (735), 735 states have call successors, (735) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 04:03:09,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:13,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:13,423 INFO L93 Difference]: Finished difference Result 4931 states and 6972 transitions. [2022-11-03 04:03:13,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:03:13,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 52 [2022-11-03 04:03:13,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:13,490 INFO L225 Difference]: With dead ends: 4931 [2022-11-03 04:03:13,490 INFO L226 Difference]: Without dead ends: 2711 [2022-11-03 04:03:13,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:03:13,518 INFO L413 NwaCegarLoop]: 3017 mSDtfsCounter, 2916 mSDsluCounter, 4102 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2920 SdHoareTripleChecker+Valid, 6643 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:13,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2920 Valid, 6643 Invalid, 868 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 867 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-03 04:03:13,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2022-11-03 04:03:13,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 2701. [2022-11-03 04:03:13,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 1512 states have (on average 1.2394179894179893) internal successors, (1874), 1596 states have internal predecessors, (1874), 868 states have call successors, (868), 284 states have call predecessors, (868), 283 states have return successors, (866), 855 states have call predecessors, (866), 866 states have call successors, (866) [2022-11-03 04:03:13,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 3608 transitions. [2022-11-03 04:03:13,891 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 3608 transitions. Word has length 52 [2022-11-03 04:03:13,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:13,894 INFO L495 AbstractCegarLoop]: Abstraction has 2701 states and 3608 transitions. [2022-11-03 04:03:13,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 04:03:13,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 3608 transitions. [2022-11-03 04:03:13,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-03 04:03:13,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:13,907 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 04:03:13,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:03:13,908 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:03:13,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:13,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1748395399, now seen corresponding path program 1 times [2022-11-03 04:03:13,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:13,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841214320] [2022-11-03 04:03:13,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:13,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:14,789 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:03:14,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:14,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841214320] [2022-11-03 04:03:14,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841214320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:14,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:14,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:03:14,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139066775] [2022-11-03 04:03:14,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:14,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:03:14,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:14,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:03:14,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:03:14,796 INFO L87 Difference]: Start difference. First operand 2701 states and 3608 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:03:17,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:23,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:23,215 INFO L93 Difference]: Finished difference Result 4805 states and 6460 transitions. [2022-11-03 04:03:23,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:03:23,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2022-11-03 04:03:23,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:23,261 INFO L225 Difference]: With dead ends: 4805 [2022-11-03 04:03:23,261 INFO L226 Difference]: Without dead ends: 4803 [2022-11-03 04:03:23,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:03:23,271 INFO L413 NwaCegarLoop]: 3703 mSDtfsCounter, 2869 mSDsluCounter, 7080 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2873 SdHoareTripleChecker+Valid, 10023 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:23,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2873 Valid, 10023 Invalid, 1195 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1192 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-11-03 04:03:23,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4803 states. [2022-11-03 04:03:23,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4803 to 4607. [2022-11-03 04:03:23,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4607 states, 2587 states have (on average 1.2404329339002707) internal successors, (3209), 2711 states have internal predecessors, (3209), 1520 states have call successors, (1520), 463 states have call predecessors, (1520), 462 states have return successors, (1527), 1495 states have call predecessors, (1527), 1518 states have call successors, (1527) [2022-11-03 04:03:23,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4607 states to 4607 states and 6256 transitions. [2022-11-03 04:03:23,787 INFO L78 Accepts]: Start accepts. Automaton has 4607 states and 6256 transitions. Word has length 57 [2022-11-03 04:03:23,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:23,788 INFO L495 AbstractCegarLoop]: Abstraction has 4607 states and 6256 transitions. [2022-11-03 04:03:23,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:03:23,790 INFO L276 IsEmpty]: Start isEmpty. Operand 4607 states and 6256 transitions. [2022-11-03 04:03:23,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-03 04:03:23,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:23,797 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 04:03:23,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:03:23,797 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:03:23,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:23,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1511235315, now seen corresponding path program 1 times [2022-11-03 04:03:23,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:23,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517077938] [2022-11-03 04:03:23,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:23,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:24,440 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:03:24,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:24,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517077938] [2022-11-03 04:03:24,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517077938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:24,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:24,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:03:24,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359734712] [2022-11-03 04:03:24,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:24,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:03:24,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:24,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:03:24,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:03:24,444 INFO L87 Difference]: Start difference. First operand 4607 states and 6256 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:03:27,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:32,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:32,528 INFO L93 Difference]: Finished difference Result 8586 states and 11731 transitions. [2022-11-03 04:03:32,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:03:32,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2022-11-03 04:03:32,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:32,618 INFO L225 Difference]: With dead ends: 8586 [2022-11-03 04:03:32,618 INFO L226 Difference]: Without dead ends: 8584 [2022-11-03 04:03:32,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:03:32,628 INFO L413 NwaCegarLoop]: 3530 mSDtfsCounter, 2867 mSDsluCounter, 6862 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2871 SdHoareTripleChecker+Valid, 9662 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:32,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2871 Valid, 9662 Invalid, 1128 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1124 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-11-03 04:03:32,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8584 states. [2022-11-03 04:03:33,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8584 to 8393. [2022-11-03 04:03:33,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8393 states, 4721 states have (on average 1.2410506248676128) internal successors, (5859), 4925 states have internal predecessors, (5859), 2816 states have call successors, (2816), 819 states have call predecessors, (2816), 818 states have return successors, (2855), 2767 states have call predecessors, (2855), 2814 states have call successors, (2855) [2022-11-03 04:03:33,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8393 states to 8393 states and 11530 transitions. [2022-11-03 04:03:33,387 INFO L78 Accepts]: Start accepts. Automaton has 8393 states and 11530 transitions. Word has length 62 [2022-11-03 04:03:33,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:33,388 INFO L495 AbstractCegarLoop]: Abstraction has 8393 states and 11530 transitions. [2022-11-03 04:03:33,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:03:33,389 INFO L276 IsEmpty]: Start isEmpty. Operand 8393 states and 11530 transitions. [2022-11-03 04:03:33,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-03 04:03:33,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:33,391 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 04:03:33,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:03:33,391 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:03:33,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:33,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1714731494, now seen corresponding path program 1 times [2022-11-03 04:03:33,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:33,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80185394] [2022-11-03 04:03:33,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:33,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:03:33,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:33,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80185394] [2022-11-03 04:03:33,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80185394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:33,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:33,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:03:33,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703311203] [2022-11-03 04:03:33,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:33,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:03:33,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:33,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:03:33,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:03:33,984 INFO L87 Difference]: Start difference. First operand 8393 states and 11530 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 04:03:36,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:40,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:40,211 INFO L93 Difference]: Finished difference Result 8403 states and 11535 transitions. [2022-11-03 04:03:40,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:03:40,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2022-11-03 04:03:40,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:40,286 INFO L225 Difference]: With dead ends: 8403 [2022-11-03 04:03:40,286 INFO L226 Difference]: Without dead ends: 8401 [2022-11-03 04:03:40,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:03:40,296 INFO L413 NwaCegarLoop]: 2984 mSDtfsCounter, 2892 mSDsluCounter, 4065 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2896 SdHoareTripleChecker+Valid, 6575 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:40,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2896 Valid, 6575 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 863 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-03 04:03:40,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8401 states. [2022-11-03 04:03:41,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8401 to 8391. [2022-11-03 04:03:41,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8391 states, 4720 states have (on average 1.2408898305084746) internal successors, (5857), 4923 states have internal predecessors, (5857), 2816 states have call successors, (2816), 819 states have call predecessors, (2816), 818 states have return successors, (2855), 2767 states have call predecessors, (2855), 2814 states have call successors, (2855) [2022-11-03 04:03:41,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8391 states to 8391 states and 11528 transitions. [2022-11-03 04:03:41,255 INFO L78 Accepts]: Start accepts. Automaton has 8391 states and 11528 transitions. Word has length 67 [2022-11-03 04:03:41,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:41,256 INFO L495 AbstractCegarLoop]: Abstraction has 8391 states and 11528 transitions. [2022-11-03 04:03:41,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 04:03:41,257 INFO L276 IsEmpty]: Start isEmpty. Operand 8391 states and 11528 transitions. [2022-11-03 04:03:41,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-03 04:03:41,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:41,261 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 04:03:41,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:03:41,262 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:03:41,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:41,262 INFO L85 PathProgramCache]: Analyzing trace with hash -439912846, now seen corresponding path program 1 times [2022-11-03 04:03:41,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:41,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440245393] [2022-11-03 04:03:41,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:41,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:41,969 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:03:41,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:41,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440245393] [2022-11-03 04:03:41,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440245393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:41,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:41,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:03:41,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265858515] [2022-11-03 04:03:41,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:41,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:03:41,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:41,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:03:41,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:03:41,974 INFO L87 Difference]: Start difference. First operand 8391 states and 11528 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:03:44,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:47,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:47,748 INFO L93 Difference]: Finished difference Result 8401 states and 11533 transitions. [2022-11-03 04:03:47,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:03:47,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-11-03 04:03:47,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:47,810 INFO L225 Difference]: With dead ends: 8401 [2022-11-03 04:03:47,810 INFO L226 Difference]: Without dead ends: 8399 [2022-11-03 04:03:47,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:03:47,820 INFO L413 NwaCegarLoop]: 2973 mSDtfsCounter, 2889 mSDsluCounter, 4048 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 6553 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:47,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 6553 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 851 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 04:03:47,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8399 states. [2022-11-03 04:03:48,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8399 to 8389. [2022-11-03 04:03:48,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8389 states, 4719 states have (on average 1.2407289680016953) internal successors, (5855), 4921 states have internal predecessors, (5855), 2816 states have call successors, (2816), 819 states have call predecessors, (2816), 818 states have return successors, (2855), 2767 states have call predecessors, (2855), 2814 states have call successors, (2855) [2022-11-03 04:03:48,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8389 states to 8389 states and 11526 transitions. [2022-11-03 04:03:48,519 INFO L78 Accepts]: Start accepts. Automaton has 8389 states and 11526 transitions. Word has length 72 [2022-11-03 04:03:48,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:48,520 INFO L495 AbstractCegarLoop]: Abstraction has 8389 states and 11526 transitions. [2022-11-03 04:03:48,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:03:48,521 INFO L276 IsEmpty]: Start isEmpty. Operand 8389 states and 11526 transitions. [2022-11-03 04:03:48,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-03 04:03:48,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:48,523 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 04:03:48,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:03:48,523 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:03:48,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:48,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1478953326, now seen corresponding path program 1 times [2022-11-03 04:03:48,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:48,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129940168] [2022-11-03 04:03:48,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:48,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:49,067 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:03:49,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:49,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129940168] [2022-11-03 04:03:49,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129940168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:49,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:49,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:03:49,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677839064] [2022-11-03 04:03:49,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:49,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:03:49,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:49,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:03:49,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:03:49,071 INFO L87 Difference]: Start difference. First operand 8389 states and 11526 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 04:03:51,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:03:54,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:54,884 INFO L93 Difference]: Finished difference Result 8399 states and 11531 transitions. [2022-11-03 04:03:54,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:03:54,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 77 [2022-11-03 04:03:54,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:54,936 INFO L225 Difference]: With dead ends: 8399 [2022-11-03 04:03:54,936 INFO L226 Difference]: Without dead ends: 8397 [2022-11-03 04:03:54,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:03:54,947 INFO L413 NwaCegarLoop]: 2971 mSDtfsCounter, 2886 mSDsluCounter, 4046 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2890 SdHoareTripleChecker+Valid, 6549 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:54,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2890 Valid, 6549 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 851 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-03 04:03:54,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8397 states. [2022-11-03 04:03:55,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8397 to 8387. [2022-11-03 04:03:55,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8387 states, 4718 states have (on average 1.2405680373039423) internal successors, (5853), 4919 states have internal predecessors, (5853), 2816 states have call successors, (2816), 819 states have call predecessors, (2816), 818 states have return successors, (2855), 2767 states have call predecessors, (2855), 2814 states have call successors, (2855) [2022-11-03 04:03:55,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8387 states to 8387 states and 11524 transitions. [2022-11-03 04:03:55,693 INFO L78 Accepts]: Start accepts. Automaton has 8387 states and 11524 transitions. Word has length 77 [2022-11-03 04:03:55,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:55,694 INFO L495 AbstractCegarLoop]: Abstraction has 8387 states and 11524 transitions. [2022-11-03 04:03:55,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 04:03:55,695 INFO L276 IsEmpty]: Start isEmpty. Operand 8387 states and 11524 transitions. [2022-11-03 04:03:55,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-03 04:03:55,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:55,699 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:55,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 04:03:55,699 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:03:55,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:55,700 INFO L85 PathProgramCache]: Analyzing trace with hash 211432539, now seen corresponding path program 1 times [2022-11-03 04:03:55,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:55,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842938092] [2022-11-03 04:03:55,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:55,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:56,302 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:03:56,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:56,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842938092] [2022-11-03 04:03:56,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842938092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:56,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:56,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:03:56,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314822183] [2022-11-03 04:03:56,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:56,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:03:56,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:56,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:03:56,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:03:56,309 INFO L87 Difference]: Start difference. First operand 8387 states and 11524 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 04:03:58,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:02,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:02,053 INFO L93 Difference]: Finished difference Result 8397 states and 11529 transitions. [2022-11-03 04:04:02,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:04:02,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 82 [2022-11-03 04:04:02,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:02,106 INFO L225 Difference]: With dead ends: 8397 [2022-11-03 04:04:02,106 INFO L226 Difference]: Without dead ends: 8395 [2022-11-03 04:04:02,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:04:02,116 INFO L413 NwaCegarLoop]: 2978 mSDtfsCounter, 2883 mSDsluCounter, 4059 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2887 SdHoareTripleChecker+Valid, 6563 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:02,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2887 Valid, 6563 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 863 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 04:04:02,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8395 states. [2022-11-03 04:04:02,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8395 to 8385. [2022-11-03 04:04:02,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8385 states, 4717 states have (on average 1.2404070383718464) internal successors, (5851), 4917 states have internal predecessors, (5851), 2816 states have call successors, (2816), 819 states have call predecessors, (2816), 818 states have return successors, (2855), 2767 states have call predecessors, (2855), 2814 states have call successors, (2855) [2022-11-03 04:04:02,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8385 states to 8385 states and 11522 transitions. [2022-11-03 04:04:02,973 INFO L78 Accepts]: Start accepts. Automaton has 8385 states and 11522 transitions. Word has length 82 [2022-11-03 04:04:02,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:02,975 INFO L495 AbstractCegarLoop]: Abstraction has 8385 states and 11522 transitions. [2022-11-03 04:04:02,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 04:04:02,976 INFO L276 IsEmpty]: Start isEmpty. Operand 8385 states and 11522 transitions. [2022-11-03 04:04:02,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-03 04:04:02,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:02,985 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 04:04:02,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 04:04:02,986 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:04:02,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:02,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1195697668, now seen corresponding path program 1 times [2022-11-03 04:04:02,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:02,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443772803] [2022-11-03 04:04:02,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:02,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:03,515 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:04:03,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:03,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443772803] [2022-11-03 04:04:03,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443772803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:03,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:03,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:04:03,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570853066] [2022-11-03 04:04:03,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:03,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:04:03,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:03,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:04:03,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:04:03,519 INFO L87 Difference]: Start difference. First operand 8385 states and 11522 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 04:04:06,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:09,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:09,267 INFO L93 Difference]: Finished difference Result 8395 states and 11527 transitions. [2022-11-03 04:04:09,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:04:09,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 87 [2022-11-03 04:04:09,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:09,319 INFO L225 Difference]: With dead ends: 8395 [2022-11-03 04:04:09,319 INFO L226 Difference]: Without dead ends: 8393 [2022-11-03 04:04:09,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:04:09,330 INFO L413 NwaCegarLoop]: 2976 mSDtfsCounter, 2884 mSDsluCounter, 4053 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2888 SdHoareTripleChecker+Valid, 6555 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:09,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2888 Valid, 6555 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 863 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 04:04:09,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8393 states. [2022-11-03 04:04:10,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8393 to 8383. [2022-11-03 04:04:10,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8383 states, 4716 states have (on average 1.2402459711620017) internal successors, (5849), 4915 states have internal predecessors, (5849), 2816 states have call successors, (2816), 819 states have call predecessors, (2816), 818 states have return successors, (2855), 2767 states have call predecessors, (2855), 2814 states have call successors, (2855) [2022-11-03 04:04:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8383 states to 8383 states and 11520 transitions. [2022-11-03 04:04:10,543 INFO L78 Accepts]: Start accepts. Automaton has 8383 states and 11520 transitions. Word has length 87 [2022-11-03 04:04:10,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:10,544 INFO L495 AbstractCegarLoop]: Abstraction has 8383 states and 11520 transitions. [2022-11-03 04:04:10,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 04:04:10,544 INFO L276 IsEmpty]: Start isEmpty. Operand 8383 states and 11520 transitions. [2022-11-03 04:04:10,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-03 04:04:10,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:10,547 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 04:04:10,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 04:04:10,548 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:04:10,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:10,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1985983839, now seen corresponding path program 1 times [2022-11-03 04:04:10,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:10,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991337449] [2022-11-03 04:04:10,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:10,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:04:11,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:11,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991337449] [2022-11-03 04:04:11,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991337449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:11,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:11,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:04:11,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248822634] [2022-11-03 04:04:11,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:11,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:04:11,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:11,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:04:11,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:04:11,082 INFO L87 Difference]: Start difference. First operand 8383 states and 11520 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 04:04:13,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:17,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:17,090 INFO L93 Difference]: Finished difference Result 8393 states and 11525 transitions. [2022-11-03 04:04:17,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:04:17,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 89 [2022-11-03 04:04:17,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:17,127 INFO L225 Difference]: With dead ends: 8393 [2022-11-03 04:04:17,127 INFO L226 Difference]: Without dead ends: 8391 [2022-11-03 04:04:17,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:04:17,134 INFO L413 NwaCegarLoop]: 2965 mSDtfsCounter, 2876 mSDsluCounter, 4040 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2880 SdHoareTripleChecker+Valid, 6537 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:17,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2880 Valid, 6537 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 851 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 04:04:17,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8391 states. [2022-11-03 04:04:17,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8391 to 8381. [2022-11-03 04:04:17,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8381 states, 4715 states have (on average 1.240084835630965) internal successors, (5847), 4913 states have internal predecessors, (5847), 2816 states have call successors, (2816), 819 states have call predecessors, (2816), 818 states have return successors, (2855), 2767 states have call predecessors, (2855), 2814 states have call successors, (2855) [2022-11-03 04:04:17,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8381 states to 8381 states and 11518 transitions. [2022-11-03 04:04:17,980 INFO L78 Accepts]: Start accepts. Automaton has 8381 states and 11518 transitions. Word has length 89 [2022-11-03 04:04:17,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:17,981 INFO L495 AbstractCegarLoop]: Abstraction has 8381 states and 11518 transitions. [2022-11-03 04:04:17,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 04:04:17,982 INFO L276 IsEmpty]: Start isEmpty. Operand 8381 states and 11518 transitions. [2022-11-03 04:04:17,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-03 04:04:17,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:17,984 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:17,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 04:04:17,985 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:04:17,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:17,985 INFO L85 PathProgramCache]: Analyzing trace with hash -525696594, now seen corresponding path program 1 times [2022-11-03 04:04:17,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:17,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915273451] [2022-11-03 04:04:17,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:17,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:18,476 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:04:18,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:18,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915273451] [2022-11-03 04:04:18,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915273451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:18,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:18,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:04:18,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601931461] [2022-11-03 04:04:18,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:18,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:04:18,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:18,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:04:18,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:04:18,480 INFO L87 Difference]: Start difference. First operand 8381 states and 11518 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 04:04:21,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:24,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:24,291 INFO L93 Difference]: Finished difference Result 8391 states and 11523 transitions. [2022-11-03 04:04:24,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:04:24,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 94 [2022-11-03 04:04:24,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:24,339 INFO L225 Difference]: With dead ends: 8391 [2022-11-03 04:04:24,339 INFO L226 Difference]: Without dead ends: 8389 [2022-11-03 04:04:24,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:04:24,348 INFO L413 NwaCegarLoop]: 2972 mSDtfsCounter, 2875 mSDsluCounter, 4053 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2879 SdHoareTripleChecker+Valid, 6551 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:24,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2879 Valid, 6551 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 863 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-03 04:04:24,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8389 states. [2022-11-03 04:04:25,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8389 to 8379. [2022-11-03 04:04:25,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8379 states, 4714 states have (on average 1.2399236317352567) internal successors, (5845), 4911 states have internal predecessors, (5845), 2816 states have call successors, (2816), 819 states have call predecessors, (2816), 818 states have return successors, (2855), 2767 states have call predecessors, (2855), 2814 states have call successors, (2855) [2022-11-03 04:04:25,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8379 states to 8379 states and 11516 transitions. [2022-11-03 04:04:25,279 INFO L78 Accepts]: Start accepts. Automaton has 8379 states and 11516 transitions. Word has length 94 [2022-11-03 04:04:25,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:25,281 INFO L495 AbstractCegarLoop]: Abstraction has 8379 states and 11516 transitions. [2022-11-03 04:04:25,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 04:04:25,281 INFO L276 IsEmpty]: Start isEmpty. Operand 8379 states and 11516 transitions. [2022-11-03 04:04:25,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-03 04:04:25,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:25,283 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 04:04:25,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 04:04:25,284 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:04:25,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:25,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1225698173, now seen corresponding path program 1 times [2022-11-03 04:04:25,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:25,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849718536] [2022-11-03 04:04:25,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:25,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:25,871 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:04:25,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:25,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849718536] [2022-11-03 04:04:25,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849718536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:25,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:25,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:04:25,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110529793] [2022-11-03 04:04:25,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:25,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:04:25,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:25,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:04:25,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:04:25,874 INFO L87 Difference]: Start difference. First operand 8379 states and 11516 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:04:28,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:31,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:31,684 INFO L93 Difference]: Finished difference Result 8389 states and 11521 transitions. [2022-11-03 04:04:31,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:04:31,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2022-11-03 04:04:31,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:31,734 INFO L225 Difference]: With dead ends: 8389 [2022-11-03 04:04:31,734 INFO L226 Difference]: Without dead ends: 8387 [2022-11-03 04:04:31,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:04:31,743 INFO L413 NwaCegarLoop]: 2961 mSDtfsCounter, 2872 mSDsluCounter, 4036 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2876 SdHoareTripleChecker+Valid, 6529 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:31,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2876 Valid, 6529 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 851 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 04:04:31,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8387 states. [2022-11-03 04:04:32,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8387 to 8377. [2022-11-03 04:04:32,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8377 states, 4713 states have (on average 1.23976235943136) internal successors, (5843), 4909 states have internal predecessors, (5843), 2816 states have call successors, (2816), 819 states have call predecessors, (2816), 818 states have return successors, (2855), 2767 states have call predecessors, (2855), 2814 states have call successors, (2855) [2022-11-03 04:04:32,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8377 states to 8377 states and 11514 transitions. [2022-11-03 04:04:32,769 INFO L78 Accepts]: Start accepts. Automaton has 8377 states and 11514 transitions. Word has length 99 [2022-11-03 04:04:32,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:32,770 INFO L495 AbstractCegarLoop]: Abstraction has 8377 states and 11514 transitions. [2022-11-03 04:04:32,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:04:32,770 INFO L276 IsEmpty]: Start isEmpty. Operand 8377 states and 11514 transitions. [2022-11-03 04:04:32,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-03 04:04:32,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:32,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 04:04:32,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 04:04:32,773 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:04:32,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:32,774 INFO L85 PathProgramCache]: Analyzing trace with hash -801620318, now seen corresponding path program 1 times [2022-11-03 04:04:32,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:32,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149176626] [2022-11-03 04:04:32,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:32,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:33,351 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:04:33,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:33,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149176626] [2022-11-03 04:04:33,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149176626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:33,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:33,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:04:33,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432209684] [2022-11-03 04:04:33,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:33,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:04:33,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:33,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:04:33,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:04:33,355 INFO L87 Difference]: Start difference. First operand 8377 states and 11514 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 04:04:36,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:39,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:39,388 INFO L93 Difference]: Finished difference Result 8387 states and 11519 transitions. [2022-11-03 04:04:39,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:04:39,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 104 [2022-11-03 04:04:39,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:39,431 INFO L225 Difference]: With dead ends: 8387 [2022-11-03 04:04:39,431 INFO L226 Difference]: Without dead ends: 8385 [2022-11-03 04:04:39,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:04:39,436 INFO L413 NwaCegarLoop]: 2968 mSDtfsCounter, 2869 mSDsluCounter, 4049 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2873 SdHoareTripleChecker+Valid, 6543 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:39,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2873 Valid, 6543 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 863 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 04:04:39,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8385 states. [2022-11-03 04:04:40,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8385 to 8375. [2022-11-03 04:04:40,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8375 states, 4712 states have (on average 1.2396010186757216) internal successors, (5841), 4907 states have internal predecessors, (5841), 2816 states have call successors, (2816), 819 states have call predecessors, (2816), 818 states have return successors, (2855), 2767 states have call predecessors, (2855), 2814 states have call successors, (2855) [2022-11-03 04:04:40,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8375 states to 8375 states and 11512 transitions. [2022-11-03 04:04:40,337 INFO L78 Accepts]: Start accepts. Automaton has 8375 states and 11512 transitions. Word has length 104 [2022-11-03 04:04:40,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:40,338 INFO L495 AbstractCegarLoop]: Abstraction has 8375 states and 11512 transitions. [2022-11-03 04:04:40,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 04:04:40,339 INFO L276 IsEmpty]: Start isEmpty. Operand 8375 states and 11512 transitions. [2022-11-03 04:04:40,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-03 04:04:40,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:40,342 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 04:04:40,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 04:04:40,343 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:04:40,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:40,343 INFO L85 PathProgramCache]: Analyzing trace with hash 809395226, now seen corresponding path program 1 times [2022-11-03 04:04:40,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:40,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601761947] [2022-11-03 04:04:40,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:40,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:42,325 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-03 04:04:42,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:42,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601761947] [2022-11-03 04:04:42,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601761947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:42,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:42,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:04:42,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929470155] [2022-11-03 04:04:42,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:42,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:04:42,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:42,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:04:42,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:04:42,328 INFO L87 Difference]: Start difference. First operand 8375 states and 11512 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:04:45,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:52,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:52,983 INFO L93 Difference]: Finished difference Result 17529 states and 24347 transitions. [2022-11-03 04:04:52,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:04:52,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 2 states have call successors, (19) Word has length 137 [2022-11-03 04:04:52,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:53,048 INFO L225 Difference]: With dead ends: 17529 [2022-11-03 04:04:53,048 INFO L226 Difference]: Without dead ends: 9173 [2022-11-03 04:04:53,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:04:53,203 INFO L413 NwaCegarLoop]: 2780 mSDtfsCounter, 132 mSDsluCounter, 15533 mSDsCounter, 0 mSdLazyCounter, 2198 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 16519 SdHoareTripleChecker+Invalid, 2202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2198 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:53,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 16519 Invalid, 2202 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2198 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2022-11-03 04:04:53,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9173 states. [2022-11-03 04:04:54,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9173 to 8381. [2022-11-03 04:04:54,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8381 states, 4716 states have (on average 1.2393977947413062) internal successors, (5845), 4911 states have internal predecessors, (5845), 2816 states have call successors, (2816), 819 states have call predecessors, (2816), 820 states have return successors, (2866), 2769 states have call predecessors, (2866), 2814 states have call successors, (2866) [2022-11-03 04:04:54,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8381 states to 8381 states and 11527 transitions. [2022-11-03 04:04:54,306 INFO L78 Accepts]: Start accepts. Automaton has 8381 states and 11527 transitions. Word has length 137 [2022-11-03 04:04:54,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:54,307 INFO L495 AbstractCegarLoop]: Abstraction has 8381 states and 11527 transitions. [2022-11-03 04:04:54,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:04:54,307 INFO L276 IsEmpty]: Start isEmpty. Operand 8381 states and 11527 transitions. [2022-11-03 04:04:54,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-03 04:04:54,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:54,311 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 04:04:54,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 04:04:54,311 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:04:54,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:54,312 INFO L85 PathProgramCache]: Analyzing trace with hash 48642969, now seen corresponding path program 1 times [2022-11-03 04:04:54,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:54,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936111093] [2022-11-03 04:04:54,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:54,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:55,927 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-03 04:04:55,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:55,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936111093] [2022-11-03 04:04:55,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936111093] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:04:55,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869867327] [2022-11-03 04:04:55,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:55,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:04:55,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:04:55,931 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:04:55,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:04:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:57,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 3407 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-03 04:04:57,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:57,803 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-11-03 04:04:57,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:04:57,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869867327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:57,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 04:04:57,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2022-11-03 04:04:57,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682337147] [2022-11-03 04:04:57,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:57,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:04:57,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:57,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:04:57,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:04:57,811 INFO L87 Difference]: Start difference. First operand 8381 states and 11527 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 04:05:01,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:09,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:09,084 INFO L93 Difference]: Finished difference Result 17550 states and 24382 transitions. [2022-11-03 04:05:09,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:09,085 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) Word has length 150 [2022-11-03 04:05:09,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:09,125 INFO L225 Difference]: With dead ends: 17550 [2022-11-03 04:05:09,125 INFO L226 Difference]: Without dead ends: 9175 [2022-11-03 04:05:09,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:05:09,170 INFO L413 NwaCegarLoop]: 2781 mSDtfsCounter, 132 mSDsluCounter, 15538 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 16529 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:09,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 16529 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2191 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-03 04:05:09,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9175 states. [2022-11-03 04:05:09,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9175 to 8383. [2022-11-03 04:05:10,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8383 states, 4718 states have (on average 1.2392963119966087) internal successors, (5847), 4912 states have internal predecessors, (5847), 2816 states have call successors, (2816), 819 states have call predecessors, (2816), 820 states have return successors, (2866), 2770 states have call predecessors, (2866), 2814 states have call successors, (2866) [2022-11-03 04:05:10,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8383 states to 8383 states and 11529 transitions. [2022-11-03 04:05:10,066 INFO L78 Accepts]: Start accepts. Automaton has 8383 states and 11529 transitions. Word has length 150 [2022-11-03 04:05:10,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:10,067 INFO L495 AbstractCegarLoop]: Abstraction has 8383 states and 11529 transitions. [2022-11-03 04:05:10,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 04:05:10,067 INFO L276 IsEmpty]: Start isEmpty. Operand 8383 states and 11529 transitions. [2022-11-03 04:05:10,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-03 04:05:10,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:10,070 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 04:05:10,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:10,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:05:10,295 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:05:10,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:10,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1522609920, now seen corresponding path program 1 times [2022-11-03 04:05:10,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:10,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215659326] [2022-11-03 04:05:10,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:10,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:10,917 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:05:10,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:10,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215659326] [2022-11-03 04:05:10,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215659326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:10,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:10,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:05:10,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455762048] [2022-11-03 04:05:10,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:10,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:05:10,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:05:10,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:05:10,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:05:10,925 INFO L87 Difference]: Start difference. First operand 8383 states and 11529 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 04:05:13,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:17,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:17,277 INFO L93 Difference]: Finished difference Result 8393 states and 11534 transitions. [2022-11-03 04:05:17,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:05:17,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 109 [2022-11-03 04:05:17,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:17,314 INFO L225 Difference]: With dead ends: 8393 [2022-11-03 04:05:17,314 INFO L226 Difference]: Without dead ends: 8391 [2022-11-03 04:05:17,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:05:17,320 INFO L413 NwaCegarLoop]: 3038 mSDtfsCounter, 2866 mSDsluCounter, 4145 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 6683 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:17,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 6683 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 915 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-03 04:05:17,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8391 states. [2022-11-03 04:05:18,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8391 to 8381. [2022-11-03 04:05:18,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8381 states, 4717 states have (on average 1.239135043459826) internal successors, (5845), 4910 states have internal predecessors, (5845), 2816 states have call successors, (2816), 819 states have call predecessors, (2816), 820 states have return successors, (2866), 2770 states have call predecessors, (2866), 2814 states have call successors, (2866) [2022-11-03 04:05:18,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8381 states to 8381 states and 11527 transitions. [2022-11-03 04:05:18,515 INFO L78 Accepts]: Start accepts. Automaton has 8381 states and 11527 transitions. Word has length 109 [2022-11-03 04:05:18,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:18,516 INFO L495 AbstractCegarLoop]: Abstraction has 8381 states and 11527 transitions. [2022-11-03 04:05:18,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 04:05:18,517 INFO L276 IsEmpty]: Start isEmpty. Operand 8381 states and 11527 transitions. [2022-11-03 04:05:18,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-03 04:05:18,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:18,520 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:18,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 04:05:18,521 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:05:18,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:18,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1429717190, now seen corresponding path program 2 times [2022-11-03 04:05:18,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:18,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985311788] [2022-11-03 04:05:18,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:18,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:20,128 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-11-03 04:05:20,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:20,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985311788] [2022-11-03 04:05:20,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985311788] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:05:20,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976475133] [2022-11-03 04:05:20,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 04:05:20,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:05:20,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:05:20,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:05:20,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:05:21,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-03 04:05:21,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:05:21,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 2723 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 04:05:21,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:22,586 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-11-03 04:05:22,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:22,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976475133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:22,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 04:05:22,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2022-11-03 04:05:22,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562597317] [2022-11-03 04:05:22,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:22,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:22,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:05:22,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:22,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-03 04:05:22,589 INFO L87 Difference]: Start difference. First operand 8381 states and 11527 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-03 04:05:26,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:38,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:38,708 INFO L93 Difference]: Finished difference Result 16255 states and 22831 transitions. [2022-11-03 04:05:38,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:05:38,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 163 [2022-11-03 04:05:38,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:38,783 INFO L225 Difference]: With dead ends: 16255 [2022-11-03 04:05:38,783 INFO L226 Difference]: Without dead ends: 16253 [2022-11-03 04:05:38,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:05:38,791 INFO L413 NwaCegarLoop]: 4016 mSDtfsCounter, 2852 mSDsluCounter, 14946 mSDsCounter, 0 mSdLazyCounter, 3713 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2856 SdHoareTripleChecker+Valid, 17211 SdHoareTripleChecker+Invalid, 3716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3713 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:38,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2856 Valid, 17211 Invalid, 3716 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3713 Invalid, 1 Unknown, 0 Unchecked, 14.2s Time] [2022-11-03 04:05:38,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16253 states. [2022-11-03 04:05:40,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16253 to 15748. [2022-11-03 04:05:40,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15748 states, 8891 states have (on average 1.2420425149027106) internal successors, (11043), 9201 states have internal predecessors, (11043), 5279 states have call successors, (5279), 1532 states have call predecessors, (5279), 1550 states have return successors, (5797), 5232 states have call predecessors, (5797), 5277 states have call successors, (5797) [2022-11-03 04:05:40,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15748 states to 15748 states and 22119 transitions. [2022-11-03 04:05:40,420 INFO L78 Accepts]: Start accepts. Automaton has 15748 states and 22119 transitions. Word has length 163 [2022-11-03 04:05:40,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:40,421 INFO L495 AbstractCegarLoop]: Abstraction has 15748 states and 22119 transitions. [2022-11-03 04:05:40,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-03 04:05:40,422 INFO L276 IsEmpty]: Start isEmpty. Operand 15748 states and 22119 transitions. [2022-11-03 04:05:40,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-03 04:05:40,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:40,424 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 04:05:40,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:40,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-03 04:05:40,643 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:05:40,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:40,644 INFO L85 PathProgramCache]: Analyzing trace with hash 804878379, now seen corresponding path program 1 times [2022-11-03 04:05:40,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:40,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599167771] [2022-11-03 04:05:40,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:40,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:41,090 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:05:41,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:41,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599167771] [2022-11-03 04:05:41,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599167771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:41,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:41,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:05:41,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327379649] [2022-11-03 04:05:41,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:41,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:05:41,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:05:41,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:05:41,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:05:41,094 INFO L87 Difference]: Start difference. First operand 15748 states and 22119 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 04:05:43,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:47,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:47,870 INFO L93 Difference]: Finished difference Result 15758 states and 22124 transitions. [2022-11-03 04:05:47,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:05:47,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 114 [2022-11-03 04:05:47,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:47,956 INFO L225 Difference]: With dead ends: 15758 [2022-11-03 04:05:47,957 INFO L226 Difference]: Without dead ends: 15756 [2022-11-03 04:05:47,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:05:47,971 INFO L413 NwaCegarLoop]: 3038 mSDtfsCounter, 2863 mSDsluCounter, 4145 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2867 SdHoareTripleChecker+Valid, 6683 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:47,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2867 Valid, 6683 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 915 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 04:05:47,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15756 states. [2022-11-03 04:05:49,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15756 to 15746. [2022-11-03 04:05:49,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15746 states, 8890 states have (on average 1.2419572553430822) internal successors, (11041), 9199 states have internal predecessors, (11041), 5279 states have call successors, (5279), 1532 states have call predecessors, (5279), 1550 states have return successors, (5797), 5232 states have call predecessors, (5797), 5277 states have call successors, (5797) [2022-11-03 04:05:49,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15746 states to 15746 states and 22117 transitions. [2022-11-03 04:05:49,947 INFO L78 Accepts]: Start accepts. Automaton has 15746 states and 22117 transitions. Word has length 114 [2022-11-03 04:05:49,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:49,948 INFO L495 AbstractCegarLoop]: Abstraction has 15746 states and 22117 transitions. [2022-11-03 04:05:49,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 04:05:49,948 INFO L276 IsEmpty]: Start isEmpty. Operand 15746 states and 22117 transitions. [2022-11-03 04:05:49,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-03 04:05:49,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:49,950 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 04:05:49,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-03 04:05:49,950 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:05:49,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:49,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1939378876, now seen corresponding path program 1 times [2022-11-03 04:05:49,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:49,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10333882] [2022-11-03 04:05:49,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:49,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:50,484 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-11-03 04:05:50,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:50,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10333882] [2022-11-03 04:05:50,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10333882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:50,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:50,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:05:50,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180018842] [2022-11-03 04:05:50,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:50,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:05:50,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:05:50,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:05:50,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:05:50,488 INFO L87 Difference]: Start difference. First operand 15746 states and 22117 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 04:05:52,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:56,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:56,772 INFO L93 Difference]: Finished difference Result 31444 states and 44837 transitions. [2022-11-03 04:05:56,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:05:56,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 179 [2022-11-03 04:05:56,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:56,867 INFO L225 Difference]: With dead ends: 31444 [2022-11-03 04:05:56,867 INFO L226 Difference]: Without dead ends: 15738 [2022-11-03 04:05:56,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:05:56,969 INFO L413 NwaCegarLoop]: 3038 mSDtfsCounter, 2848 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2850 SdHoareTripleChecker+Valid, 3643 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:56,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2850 Valid, 3643 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 505 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-03 04:05:56,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15738 states. [2022-11-03 04:05:58,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15738 to 15730. [2022-11-03 04:05:58,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15730 states, 8874 states have (on average 1.240590489069191) internal successors, (11009), 9183 states have internal predecessors, (11009), 5279 states have call successors, (5279), 1532 states have call predecessors, (5279), 1550 states have return successors, (5797), 5232 states have call predecessors, (5797), 5277 states have call successors, (5797) [2022-11-03 04:05:59,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15730 states to 15730 states and 22085 transitions. [2022-11-03 04:05:59,068 INFO L78 Accepts]: Start accepts. Automaton has 15730 states and 22085 transitions. Word has length 179 [2022-11-03 04:05:59,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:59,069 INFO L495 AbstractCegarLoop]: Abstraction has 15730 states and 22085 transitions. [2022-11-03 04:05:59,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 04:05:59,069 INFO L276 IsEmpty]: Start isEmpty. Operand 15730 states and 22085 transitions. [2022-11-03 04:05:59,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-03 04:05:59,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:59,071 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 04:05:59,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-03 04:05:59,071 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:05:59,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:59,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1067816303, now seen corresponding path program 1 times [2022-11-03 04:05:59,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:59,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556291451] [2022-11-03 04:05:59,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:59,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:59,543 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:05:59,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:59,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556291451] [2022-11-03 04:05:59,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556291451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:59,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:59,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:05:59,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205106510] [2022-11-03 04:05:59,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:59,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:05:59,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:05:59,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:05:59,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:05:59,546 INFO L87 Difference]: Start difference. First operand 15730 states and 22085 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 04:06:02,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:06,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:06,891 INFO L93 Difference]: Finished difference Result 15738 states and 22089 transitions. [2022-11-03 04:06:06,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:06:06,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 119 [2022-11-03 04:06:06,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:06,977 INFO L225 Difference]: With dead ends: 15738 [2022-11-03 04:06:06,978 INFO L226 Difference]: Without dead ends: 15736 [2022-11-03 04:06:06,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:06:06,988 INFO L413 NwaCegarLoop]: 3036 mSDtfsCounter, 2855 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2859 SdHoareTripleChecker+Valid, 6679 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:06,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2859 Valid, 6679 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 915 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-03 04:06:07,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15736 states. [2022-11-03 04:06:08,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15736 to 15728. [2022-11-03 04:06:08,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15728 states, 8873 states have (on average 1.2405049025132424) internal successors, (11007), 9181 states have internal predecessors, (11007), 5279 states have call successors, (5279), 1532 states have call predecessors, (5279), 1550 states have return successors, (5797), 5232 states have call predecessors, (5797), 5277 states have call successors, (5797) [2022-11-03 04:06:09,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15728 states to 15728 states and 22083 transitions. [2022-11-03 04:06:09,021 INFO L78 Accepts]: Start accepts. Automaton has 15728 states and 22083 transitions. Word has length 119 [2022-11-03 04:06:09,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:09,021 INFO L495 AbstractCegarLoop]: Abstraction has 15728 states and 22083 transitions. [2022-11-03 04:06:09,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 04:06:09,021 INFO L276 IsEmpty]: Start isEmpty. Operand 15728 states and 22083 transitions. [2022-11-03 04:06:09,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-03 04:06:09,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:09,023 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 04:06:09,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-03 04:06:09,023 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:06:09,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:09,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1374798202, now seen corresponding path program 1 times [2022-11-03 04:06:09,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:09,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514751068] [2022-11-03 04:06:09,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:09,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:09,846 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:06:09,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:09,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514751068] [2022-11-03 04:06:09,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514751068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:09,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:09,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:06:09,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482331229] [2022-11-03 04:06:09,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:09,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:06:09,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:09,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:06:09,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:06:09,850 INFO L87 Difference]: Start difference. First operand 15728 states and 22083 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 04:06:12,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:18,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:18,023 INFO L93 Difference]: Finished difference Result 15736 states and 22087 transitions. [2022-11-03 04:06:18,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:06:18,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 124 [2022-11-03 04:06:18,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:18,094 INFO L225 Difference]: With dead ends: 15736 [2022-11-03 04:06:18,095 INFO L226 Difference]: Without dead ends: 15734 [2022-11-03 04:06:18,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:06:18,105 INFO L413 NwaCegarLoop]: 3034 mSDtfsCounter, 2852 mSDsluCounter, 4141 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2856 SdHoareTripleChecker+Valid, 6675 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:18,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2856 Valid, 6675 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 915 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-03 04:06:18,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15734 states. [2022-11-03 04:06:19,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15734 to 15726. [2022-11-03 04:06:19,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15726 states, 8872 states have (on average 1.240419296663661) internal successors, (11005), 9179 states have internal predecessors, (11005), 5279 states have call successors, (5279), 1532 states have call predecessors, (5279), 1550 states have return successors, (5797), 5232 states have call predecessors, (5797), 5277 states have call successors, (5797) [2022-11-03 04:06:19,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15726 states to 15726 states and 22081 transitions. [2022-11-03 04:06:19,976 INFO L78 Accepts]: Start accepts. Automaton has 15726 states and 22081 transitions. Word has length 124 [2022-11-03 04:06:19,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:19,976 INFO L495 AbstractCegarLoop]: Abstraction has 15726 states and 22081 transitions. [2022-11-03 04:06:19,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 04:06:19,977 INFO L276 IsEmpty]: Start isEmpty. Operand 15726 states and 22081 transitions. [2022-11-03 04:06:19,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-03 04:06:19,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:19,979 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 04:06:19,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-03 04:06:19,980 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:06:19,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:19,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1272319479, now seen corresponding path program 1 times [2022-11-03 04:06:19,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:19,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822619882] [2022-11-03 04:06:19,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:19,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:20,473 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:06:20,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:20,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822619882] [2022-11-03 04:06:20,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822619882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:20,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:20,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:06:20,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542185951] [2022-11-03 04:06:20,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:20,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:06:20,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:20,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:06:20,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:06:20,476 INFO L87 Difference]: Start difference. First operand 15726 states and 22081 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 04:06:23,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:28,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:28,039 INFO L93 Difference]: Finished difference Result 15734 states and 22085 transitions. [2022-11-03 04:06:28,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:06:28,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 129 [2022-11-03 04:06:28,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:28,102 INFO L225 Difference]: With dead ends: 15734 [2022-11-03 04:06:28,102 INFO L226 Difference]: Without dead ends: 15732 [2022-11-03 04:06:28,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:06:28,111 INFO L413 NwaCegarLoop]: 3032 mSDtfsCounter, 2849 mSDsluCounter, 4139 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2853 SdHoareTripleChecker+Valid, 6671 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:28,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2853 Valid, 6671 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 915 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-03 04:06:28,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15732 states. [2022-11-03 04:06:30,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15732 to 15724. [2022-11-03 04:06:30,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15724 states, 8871 states have (on average 1.2403336715139217) internal successors, (11003), 9177 states have internal predecessors, (11003), 5279 states have call successors, (5279), 1532 states have call predecessors, (5279), 1550 states have return successors, (5797), 5232 states have call predecessors, (5797), 5277 states have call successors, (5797) [2022-11-03 04:06:30,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15724 states to 15724 states and 22079 transitions. [2022-11-03 04:06:30,083 INFO L78 Accepts]: Start accepts. Automaton has 15724 states and 22079 transitions. Word has length 129 [2022-11-03 04:06:30,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:30,083 INFO L495 AbstractCegarLoop]: Abstraction has 15724 states and 22079 transitions. [2022-11-03 04:06:30,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 04:06:30,083 INFO L276 IsEmpty]: Start isEmpty. Operand 15724 states and 22079 transitions. [2022-11-03 04:06:30,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-03 04:06:30,085 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:30,085 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:30,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-03 04:06:30,086 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:06:30,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:30,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1430098682, now seen corresponding path program 1 times [2022-11-03 04:06:30,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:30,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111100369] [2022-11-03 04:06:30,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:30,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:30,516 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:06:30,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:30,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111100369] [2022-11-03 04:06:30,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111100369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:30,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:30,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:06:30,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50732210] [2022-11-03 04:06:30,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:30,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:06:30,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:30,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:06:30,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:06:30,521 INFO L87 Difference]: Start difference. First operand 15724 states and 22079 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 04:06:33,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:37,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:38,000 INFO L93 Difference]: Finished difference Result 15732 states and 22083 transitions. [2022-11-03 04:06:38,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:06:38,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 134 [2022-11-03 04:06:38,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:38,060 INFO L225 Difference]: With dead ends: 15732 [2022-11-03 04:06:38,060 INFO L226 Difference]: Without dead ends: 15730 [2022-11-03 04:06:38,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:06:38,069 INFO L413 NwaCegarLoop]: 3030 mSDtfsCounter, 2846 mSDsluCounter, 4137 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2850 SdHoareTripleChecker+Valid, 6667 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:38,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2850 Valid, 6667 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 915 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-03 04:06:38,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15730 states. [2022-11-03 04:06:40,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15730 to 15722. [2022-11-03 04:06:40,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15722 states, 8870 states have (on average 1.2402480270574971) internal successors, (11001), 9175 states have internal predecessors, (11001), 5279 states have call successors, (5279), 1532 states have call predecessors, (5279), 1550 states have return successors, (5797), 5232 states have call predecessors, (5797), 5277 states have call successors, (5797) [2022-11-03 04:06:40,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15722 states to 15722 states and 22077 transitions. [2022-11-03 04:06:40,292 INFO L78 Accepts]: Start accepts. Automaton has 15722 states and 22077 transitions. Word has length 134 [2022-11-03 04:06:40,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:40,292 INFO L495 AbstractCegarLoop]: Abstraction has 15722 states and 22077 transitions. [2022-11-03 04:06:40,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 04:06:40,292 INFO L276 IsEmpty]: Start isEmpty. Operand 15722 states and 22077 transitions. [2022-11-03 04:06:40,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-03 04:06:40,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:40,294 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:40,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-03 04:06:40,295 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:06:40,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:40,295 INFO L85 PathProgramCache]: Analyzing trace with hash 325565915, now seen corresponding path program 1 times [2022-11-03 04:06:40,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:40,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463822037] [2022-11-03 04:06:40,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:40,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:41,281 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-11-03 04:06:41,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:41,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463822037] [2022-11-03 04:06:41,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463822037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:41,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:41,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:06:41,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225130723] [2022-11-03 04:06:41,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:41,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:41,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:41,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:41,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:06:41,285 INFO L87 Difference]: Start difference. First operand 15722 states and 22077 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 04:06:43,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:50,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:50,009 INFO L93 Difference]: Finished difference Result 15836 states and 22170 transitions. [2022-11-03 04:06:50,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:50,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 170 [2022-11-03 04:06:50,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:50,058 INFO L225 Difference]: With dead ends: 15836 [2022-11-03 04:06:50,059 INFO L226 Difference]: Without dead ends: 15834 [2022-11-03 04:06:50,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:06:50,065 INFO L413 NwaCegarLoop]: 3021 mSDtfsCounter, 2822 mSDsluCounter, 7568 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2829 SdHoareTripleChecker+Valid, 9675 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:50,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2829 Valid, 9675 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1344 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-03 04:06:50,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15834 states. [2022-11-03 04:06:52,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15834 to 15826. [2022-11-03 04:06:52,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15826 states, 8942 states have (on average 1.2392082308208454) internal successors, (11081), 9247 states have internal predecessors, (11081), 5279 states have call successors, (5279), 1564 states have call predecessors, (5279), 1582 states have return successors, (5797), 5232 states have call predecessors, (5797), 5277 states have call successors, (5797) [2022-11-03 04:06:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15826 states to 15826 states and 22157 transitions. [2022-11-03 04:06:52,114 INFO L78 Accepts]: Start accepts. Automaton has 15826 states and 22157 transitions. Word has length 170 [2022-11-03 04:06:52,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:52,115 INFO L495 AbstractCegarLoop]: Abstraction has 15826 states and 22157 transitions. [2022-11-03 04:06:52,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 04:06:52,115 INFO L276 IsEmpty]: Start isEmpty. Operand 15826 states and 22157 transitions. [2022-11-03 04:06:52,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:06:52,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:52,117 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:52,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-03 04:06:52,117 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:06:52,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:52,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2091261356, now seen corresponding path program 1 times [2022-11-03 04:06:52,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:52,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933559161] [2022-11-03 04:06:52,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:52,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:52,418 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2022-11-03 04:06:52,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:52,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933559161] [2022-11-03 04:06:52,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933559161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:52,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:52,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:06:52,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620055355] [2022-11-03 04:06:52,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:52,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:06:52,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:52,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:06:52,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:52,421 INFO L87 Difference]: Start difference. First operand 15826 states and 22157 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 04:06:54,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:58,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:58,891 INFO L93 Difference]: Finished difference Result 31602 states and 44232 transitions. [2022-11-03 04:06:58,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:06:58,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 185 [2022-11-03 04:06:58,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:58,960 INFO L225 Difference]: With dead ends: 31602 [2022-11-03 04:06:58,960 INFO L226 Difference]: Without dead ends: 15816 [2022-11-03 04:06:59,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:59,029 INFO L413 NwaCegarLoop]: 3013 mSDtfsCounter, 2868 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 3620 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:59,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 3620 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-03 04:06:59,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15816 states. [2022-11-03 04:07:01,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15816 to 15808. [2022-11-03 04:07:01,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15808 states, 8925 states have (on average 1.2378711484593838) internal successors, (11048), 9229 states have internal predecessors, (11048), 5279 states have call successors, (5279), 1564 states have call predecessors, (5279), 1582 states have return successors, (5797), 5232 states have call predecessors, (5797), 5277 states have call successors, (5797) [2022-11-03 04:07:01,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15808 states to 15808 states and 22124 transitions. [2022-11-03 04:07:01,390 INFO L78 Accepts]: Start accepts. Automaton has 15808 states and 22124 transitions. Word has length 185 [2022-11-03 04:07:01,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:01,392 INFO L495 AbstractCegarLoop]: Abstraction has 15808 states and 22124 transitions. [2022-11-03 04:07:01,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 04:07:01,392 INFO L276 IsEmpty]: Start isEmpty. Operand 15808 states and 22124 transitions. [2022-11-03 04:07:01,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-03 04:07:01,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:01,395 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:01,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-03 04:07:01,396 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:07:01,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:01,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1567768329, now seen corresponding path program 1 times [2022-11-03 04:07:01,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:01,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880425850] [2022-11-03 04:07:01,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:01,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:01,818 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:07:01,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:01,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880425850] [2022-11-03 04:07:01,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880425850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:01,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:01,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:07:01,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047302089] [2022-11-03 04:07:01,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:01,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:07:01,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:01,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:07:01,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:07:01,822 INFO L87 Difference]: Start difference. First operand 15808 states and 22124 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 04:07:04,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:09,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:09,669 INFO L93 Difference]: Finished difference Result 15816 states and 22128 transitions. [2022-11-03 04:07:09,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:07:09,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 139 [2022-11-03 04:07:09,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:09,726 INFO L225 Difference]: With dead ends: 15816 [2022-11-03 04:07:09,726 INFO L226 Difference]: Without dead ends: 15814 [2022-11-03 04:07:09,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:07:09,882 INFO L413 NwaCegarLoop]: 3010 mSDtfsCounter, 2838 mSDsluCounter, 4115 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2842 SdHoareTripleChecker+Valid, 6627 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:09,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2842 Valid, 6627 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 911 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-03 04:07:09,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15814 states. [2022-11-03 04:07:12,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15814 to 15806. [2022-11-03 04:07:12,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15806 states, 8924 states have (on average 1.2377857463021067) internal successors, (11046), 9227 states have internal predecessors, (11046), 5279 states have call successors, (5279), 1564 states have call predecessors, (5279), 1582 states have return successors, (5797), 5232 states have call predecessors, (5797), 5277 states have call successors, (5797) [2022-11-03 04:07:12,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15806 states to 15806 states and 22122 transitions. [2022-11-03 04:07:12,100 INFO L78 Accepts]: Start accepts. Automaton has 15806 states and 22122 transitions. Word has length 139 [2022-11-03 04:07:12,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:12,100 INFO L495 AbstractCegarLoop]: Abstraction has 15806 states and 22122 transitions. [2022-11-03 04:07:12,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 04:07:12,100 INFO L276 IsEmpty]: Start isEmpty. Operand 15806 states and 22122 transitions. [2022-11-03 04:07:12,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-03 04:07:12,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:12,104 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:12,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-03 04:07:12,104 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:07:12,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:12,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1033763947, now seen corresponding path program 1 times [2022-11-03 04:07:12,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:12,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172940552] [2022-11-03 04:07:12,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:12,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:12,536 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2022-11-03 04:07:12,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:12,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172940552] [2022-11-03 04:07:12,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172940552] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:12,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118733702] [2022-11-03 04:07:12,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:12,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:07:12,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:07:12,542 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:07:12,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:07:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:13,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 3604 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 04:07:14,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:14,183 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-11-03 04:07:14,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:14,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118733702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:14,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 04:07:14,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-03 04:07:14,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79162351] [2022-11-03 04:07:14,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:14,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:07:14,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:14,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:07:14,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:07:14,186 INFO L87 Difference]: Start difference. First operand 15806 states and 22122 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 04:07:16,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:20,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:20,777 INFO L93 Difference]: Finished difference Result 31562 states and 44162 transitions. [2022-11-03 04:07:20,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:07:20,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 190 [2022-11-03 04:07:20,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:20,856 INFO L225 Difference]: With dead ends: 31562 [2022-11-03 04:07:20,856 INFO L226 Difference]: Without dead ends: 15796 [2022-11-03 04:07:20,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:07:20,922 INFO L413 NwaCegarLoop]: 3006 mSDtfsCounter, 2828 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2830 SdHoareTripleChecker+Valid, 3613 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:20,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2830 Valid, 3613 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-03 04:07:20,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15796 states. [2022-11-03 04:07:23,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 15788. [2022-11-03 04:07:23,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15788 states, 8907 states have (on average 1.2364432468844728) internal successors, (11013), 9209 states have internal predecessors, (11013), 5279 states have call successors, (5279), 1564 states have call predecessors, (5279), 1582 states have return successors, (5797), 5232 states have call predecessors, (5797), 5277 states have call successors, (5797) [2022-11-03 04:07:23,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15788 states to 15788 states and 22089 transitions. [2022-11-03 04:07:23,934 INFO L78 Accepts]: Start accepts. Automaton has 15788 states and 22089 transitions. Word has length 190 [2022-11-03 04:07:23,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:23,935 INFO L495 AbstractCegarLoop]: Abstraction has 15788 states and 22089 transitions. [2022-11-03 04:07:23,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 04:07:23,936 INFO L276 IsEmpty]: Start isEmpty. Operand 15788 states and 22089 transitions. [2022-11-03 04:07:23,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-03 04:07:23,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:23,939 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:23,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:24,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf11be0-8a08-47ca-a70b-393d8f4d1a18/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-03 04:07:24,152 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:07:24,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:24,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1134720957, now seen corresponding path program 1 times [2022-11-03 04:07:24,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:24,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816048033] [2022-11-03 04:07:24,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:24,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:24,603 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:07:24,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:24,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816048033] [2022-11-03 04:07:24,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816048033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:24,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:24,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:07:24,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372273668] [2022-11-03 04:07:24,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:24,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:07:24,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:24,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:07:24,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:07:24,608 INFO L87 Difference]: Start difference. First operand 15788 states and 22089 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 04:07:27,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:32,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:32,959 INFO L93 Difference]: Finished difference Result 15796 states and 22093 transitions. [2022-11-03 04:07:32,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:07:32,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 144 [2022-11-03 04:07:32,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:33,016 INFO L225 Difference]: With dead ends: 15796 [2022-11-03 04:07:33,016 INFO L226 Difference]: Without dead ends: 15794 [2022-11-03 04:07:33,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:07:33,023 INFO L413 NwaCegarLoop]: 3003 mSDtfsCounter, 2830 mSDsluCounter, 4108 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2834 SdHoareTripleChecker+Valid, 6613 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:33,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2834 Valid, 6613 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 911 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-03 04:07:33,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15794 states. [2022-11-03 04:07:35,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15794 to 15786. [2022-11-03 04:07:35,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15786 states, 8906 states have (on average 1.2363575117898047) internal successors, (11011), 9207 states have internal predecessors, (11011), 5279 states have call successors, (5279), 1564 states have call predecessors, (5279), 1582 states have return successors, (5797), 5232 states have call predecessors, (5797), 5277 states have call successors, (5797) [2022-11-03 04:07:35,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15786 states to 15786 states and 22087 transitions. [2022-11-03 04:07:35,498 INFO L78 Accepts]: Start accepts. Automaton has 15786 states and 22087 transitions. Word has length 144 [2022-11-03 04:07:35,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:35,499 INFO L495 AbstractCegarLoop]: Abstraction has 15786 states and 22087 transitions. [2022-11-03 04:07:35,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 04:07:35,499 INFO L276 IsEmpty]: Start isEmpty. Operand 15786 states and 22087 transitions. [2022-11-03 04:07:35,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-03 04:07:35,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:35,501 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:35,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-03 04:07:35,502 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:07:35,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:35,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1901428709, now seen corresponding path program 1 times [2022-11-03 04:07:35,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:35,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10724881] [2022-11-03 04:07:35,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:35,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:35,956 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:07:35,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:35,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10724881] [2022-11-03 04:07:35,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10724881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:35,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:35,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:07:35,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707905321] [2022-11-03 04:07:35,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:35,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:07:35,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:35,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:07:35,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:07:35,960 INFO L87 Difference]: Start difference. First operand 15786 states and 22087 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 04:07:38,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:44,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:44,260 INFO L93 Difference]: Finished difference Result 15794 states and 22091 transitions. [2022-11-03 04:07:44,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:07:44,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 149 [2022-11-03 04:07:44,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:44,438 INFO L225 Difference]: With dead ends: 15794 [2022-11-03 04:07:44,438 INFO L226 Difference]: Without dead ends: 15638 [2022-11-03 04:07:44,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:07:44,451 INFO L413 NwaCegarLoop]: 3002 mSDtfsCounter, 2827 mSDsluCounter, 4108 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2829 SdHoareTripleChecker+Valid, 6611 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:44,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2829 Valid, 6611 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 911 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-03 04:07:44,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15638 states. [2022-11-03 04:07:46,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15638 to 15630. [2022-11-03 04:07:46,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15630 states, 8831 states have (on average 1.23745895142113) internal successors, (10928), 9126 states have internal predecessors, (10928), 5223 states have call successors, (5223), 1541 states have call predecessors, (5223), 1558 states have return successors, (5739), 5180 states have call predecessors, (5739), 5219 states have call successors, (5739) [2022-11-03 04:07:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15630 states to 15630 states and 21890 transitions. [2022-11-03 04:07:47,070 INFO L78 Accepts]: Start accepts. Automaton has 15630 states and 21890 transitions. Word has length 149 [2022-11-03 04:07:47,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:47,071 INFO L495 AbstractCegarLoop]: Abstraction has 15630 states and 21890 transitions. [2022-11-03 04:07:47,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 04:07:47,071 INFO L276 IsEmpty]: Start isEmpty. Operand 15630 states and 21890 transitions. [2022-11-03 04:07:47,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-03 04:07:47,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:47,074 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:47,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-03 04:07:47,074 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:07:47,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:47,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1301266572, now seen corresponding path program 1 times [2022-11-03 04:07:47,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:47,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265678889] [2022-11-03 04:07:47,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:47,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:47,713 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-11-03 04:07:47,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:47,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265678889] [2022-11-03 04:07:47,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265678889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:47,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:47,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:07:47,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235534517] [2022-11-03 04:07:47,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:47,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:07:47,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:47,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:07:47,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:07:47,717 INFO L87 Difference]: Start difference. First operand 15630 states and 21890 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 04:07:50,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:57,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:57,634 INFO L93 Difference]: Finished difference Result 15632 states and 21891 transitions. [2022-11-03 04:07:57,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:07:57,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 188 [2022-11-03 04:07:57,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:57,687 INFO L225 Difference]: With dead ends: 15632 [2022-11-03 04:07:57,687 INFO L226 Difference]: Without dead ends: 15630 [2022-11-03 04:07:57,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:07:57,700 INFO L413 NwaCegarLoop]: 2509 mSDtfsCounter, 19 mSDsluCounter, 8540 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 10020 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:57,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 10020 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1388 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-11-03 04:07:57,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15630 states. [2022-11-03 04:08:00,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15630 to 15630. [2022-11-03 04:08:00,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15630 states, 8831 states have (on average 1.2365530517495187) internal successors, (10920), 9126 states have internal predecessors, (10920), 5223 states have call successors, (5223), 1541 states have call predecessors, (5223), 1558 states have return successors, (5739), 5180 states have call predecessors, (5739), 5219 states have call successors, (5739) [2022-11-03 04:08:00,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15630 states to 15630 states and 21882 transitions. [2022-11-03 04:08:00,386 INFO L78 Accepts]: Start accepts. Automaton has 15630 states and 21882 transitions. Word has length 188 [2022-11-03 04:08:00,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:00,386 INFO L495 AbstractCegarLoop]: Abstraction has 15630 states and 21882 transitions. [2022-11-03 04:08:00,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 04:08:00,387 INFO L276 IsEmpty]: Start isEmpty. Operand 15630 states and 21882 transitions. [2022-11-03 04:08:00,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-03 04:08:00,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:00,390 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-03 04:08:00,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-03 04:08:00,390 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:08:00,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:00,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1542292671, now seen corresponding path program 1 times [2022-11-03 04:08:00,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:00,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444301704] [2022-11-03 04:08:00,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:00,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:02,453 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-11-03 04:08:02,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:02,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444301704] [2022-11-03 04:08:02,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444301704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:02,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:02,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:08:02,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923685900] [2022-11-03 04:08:02,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:02,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:08:02,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:02,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:08:02,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:08:02,456 INFO L87 Difference]: Start difference. First operand 15630 states and 21882 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 04:08:05,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:16,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:16,660 INFO L93 Difference]: Finished difference Result 17415 states and 24098 transitions. [2022-11-03 04:08:16,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 04:08:16,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 202 [2022-11-03 04:08:16,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:16,715 INFO L225 Difference]: With dead ends: 17415 [2022-11-03 04:08:16,715 INFO L226 Difference]: Without dead ends: 17413 [2022-11-03 04:08:16,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:08:16,722 INFO L413 NwaCegarLoop]: 2671 mSDtfsCounter, 2681 mSDsluCounter, 8311 mSDsCounter, 0 mSdLazyCounter, 2827 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2685 SdHoareTripleChecker+Valid, 9873 SdHoareTripleChecker+Invalid, 2831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2827 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:16,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2685 Valid, 9873 Invalid, 2831 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2827 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2022-11-03 04:08:16,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17413 states. [2022-11-03 04:08:19,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17413 to 17315. [2022-11-03 04:08:19,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17315 states, 9777 states have (on average 1.2364733558351233) internal successors, (12089), 10096 states have internal predecessors, (12089), 5669 states have call successors, (5669), 1843 states have call predecessors, (5669), 1851 states have return successors, (6227), 5608 states have call predecessors, (6227), 5665 states have call successors, (6227) [2022-11-03 04:08:19,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17315 states to 17315 states and 23985 transitions. [2022-11-03 04:08:19,332 INFO L78 Accepts]: Start accepts. Automaton has 17315 states and 23985 transitions. Word has length 202 [2022-11-03 04:08:19,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:19,332 INFO L495 AbstractCegarLoop]: Abstraction has 17315 states and 23985 transitions. [2022-11-03 04:08:19,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 04:08:19,333 INFO L276 IsEmpty]: Start isEmpty. Operand 17315 states and 23985 transitions. [2022-11-03 04:08:19,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-03 04:08:19,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:19,337 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-03 04:08:19,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-03 04:08:19,337 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_sched_completion__wait_without_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:08:19,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:19,338 INFO L85 PathProgramCache]: Analyzing trace with hash -962811946, now seen corresponding path program 1 times [2022-11-03 04:08:19,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:19,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785486359] [2022-11-03 04:08:19,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:19,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:20,104 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-11-03 04:08:20,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:20,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785486359] [2022-11-03 04:08:20,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785486359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:20,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:20,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:08:20,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518013177] [2022-11-03 04:08:20,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:20,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:08:20,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:20,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:08:20,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:08:20,106 INFO L87 Difference]: Start difference. First operand 17315 states and 23985 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 04:08:22,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:30,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:30,510 INFO L93 Difference]: Finished difference Result 34616 states and 48557 transitions. [2022-11-03 04:08:30,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:08:30,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 205 [2022-11-03 04:08:30,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:30,573 INFO L225 Difference]: With dead ends: 34616 [2022-11-03 04:08:30,573 INFO L226 Difference]: Without dead ends: 17349 [2022-11-03 04:08:30,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:08:30,632 INFO L413 NwaCegarLoop]: 2510 mSDtfsCounter, 2 mSDsluCounter, 8551 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10030 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:30,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10030 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1392 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-11-03 04:08:30,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17349 states. [2022-11-03 04:08:33,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17349 to 17329. [2022-11-03 04:08:33,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17329 states, 9785 states have (on average 1.2362800204394482) internal successors, (12097), 10109 states have internal predecessors, (12097), 5669 states have call successors, (5669), 1843 states have call predecessors, (5669), 1857 states have return successors, (6234), 5609 states have call predecessors, (6234), 5665 states have call successors, (6234) [2022-11-03 04:08:33,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17329 states to 17329 states and 24000 transitions. [2022-11-03 04:08:33,797 INFO L78 Accepts]: Start accepts. Automaton has 17329 states and 24000 transitions. Word has length 205 [2022-11-03 04:08:33,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:33,797 INFO L495 AbstractCegarLoop]: Abstraction has 17329 states and 24000 transitions. [2022-11-03 04:08:33,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 04:08:33,798 INFO L276 IsEmpty]: Start isEmpty. Operand 17329 states and 24000 transitions. [2022-11-03 04:08:33,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-03 04:08:33,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:33,802 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:33,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-03 04:08:33,802 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_sched_completion__wait_without_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:08:33,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:33,803 INFO L85 PathProgramCache]: Analyzing trace with hash -300250669, now seen corresponding path program 1 times [2022-11-03 04:08:33,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:33,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855607834] [2022-11-03 04:08:33,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:33,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:34,344 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-11-03 04:08:34,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:34,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855607834] [2022-11-03 04:08:34,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855607834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:34,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:34,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:08:34,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320080918] [2022-11-03 04:08:34,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:34,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:08:34,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:34,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:08:34,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:08:34,346 INFO L87 Difference]: Start difference. First operand 17329 states and 24000 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 04:08:37,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:44,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:44,870 INFO L93 Difference]: Finished difference Result 34644 states and 48587 transitions. [2022-11-03 04:08:44,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:08:44,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 206 [2022-11-03 04:08:44,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:44,941 INFO L225 Difference]: With dead ends: 34644 [2022-11-03 04:08:44,941 INFO L226 Difference]: Without dead ends: 17363 [2022-11-03 04:08:45,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:08:45,010 INFO L413 NwaCegarLoop]: 2509 mSDtfsCounter, 2 mSDsluCounter, 8548 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10026 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:45,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10026 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1390 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-11-03 04:08:45,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17363 states. [2022-11-03 04:08:48,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17363 to 17329. [2022-11-03 04:08:48,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17329 states, 9785 states have (on average 1.2362800204394482) internal successors, (12097), 10109 states have internal predecessors, (12097), 5669 states have call successors, (5669), 1843 states have call predecessors, (5669), 1857 states have return successors, (6234), 5609 states have call predecessors, (6234), 5665 states have call successors, (6234) [2022-11-03 04:08:48,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17329 states to 17329 states and 24000 transitions. [2022-11-03 04:08:48,219 INFO L78 Accepts]: Start accepts. Automaton has 17329 states and 24000 transitions. Word has length 206 [2022-11-03 04:08:48,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:48,220 INFO L495 AbstractCegarLoop]: Abstraction has 17329 states and 24000 transitions. [2022-11-03 04:08:48,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 04:08:48,220 INFO L276 IsEmpty]: Start isEmpty. Operand 17329 states and 24000 transitions. [2022-11-03 04:08:48,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-03 04:08:48,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:48,224 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-03 04:08:48,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-03 04:08:48,225 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-11-03 04:08:48,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:48,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1000544066, now seen corresponding path program 1 times [2022-11-03 04:08:48,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:48,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352670038] [2022-11-03 04:08:48,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:48,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:48,713 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-11-03 04:08:48,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:48,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352670038] [2022-11-03 04:08:48,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352670038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:48,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:48,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:08:48,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073161112] [2022-11-03 04:08:48,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:48,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:08:48,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:48,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:08:48,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:08:48,716 INFO L87 Difference]: Start difference. First operand 17329 states and 24000 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 04:08:51,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:08:55,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:55,745 INFO L93 Difference]: Finished difference Result 34602 states and 48600 transitions. [2022-11-03 04:08:55,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:08:55,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 205 [2022-11-03 04:08:55,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted.