./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS --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 2d0073111a5c7b021bc76098b9f15e3306b34538df9d4af329dd19631f32f125 --- 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-8393723 [2022-11-19 06:36:56,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:36:56,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:36:56,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:36:56,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:36:56,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:36:56,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:36:56,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:36:56,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:36:56,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:36:56,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:36:56,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:36:56,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:36:56,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:36:56,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:36:56,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:36:56,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:36:56,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:36:56,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:36:56,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:36:56,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:36:56,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:36:56,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:36:56,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:36:56,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:36:56,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:36:56,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:36:56,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:36:56,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:36:56,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:36:56,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:36:56,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:36:56,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:36:56,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:36:56,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:36:56,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:36:56,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:36:56,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:36:56,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:36:56,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:36:56,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:36:56,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:36:56,712 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:36:56,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:36:56,712 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:36:56,712 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:36:56,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:36:56,713 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:36:56,713 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:36:56,714 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:36:56,714 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:36:56,714 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:36:56,714 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:36:56,714 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:36:56,714 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:36:56,721 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:36:56,721 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:36:56,722 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:36:56,722 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:36:56,722 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:36:56,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:36:56,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:36:56,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:36:56,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:36:56,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:36:56,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:36:56,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:36:56,724 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:36:56,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:36:56,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:36:56,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:36:56,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:36:56,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:36:56,727 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:36:56,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:36:56,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:36:56,727 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:36:56,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:36:56,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:36:56,729 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:36:56,729 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_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0073111a5c7b021bc76098b9f15e3306b34538df9d4af329dd19631f32f125 [2022-11-19 06:36:57,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:36:57,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:36:57,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:36:57,135 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:36:57,136 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:36:57,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2022-11-19 06:36:57,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/data/19c430c87/5e127a3efb9a4d67b2fe0936726c9c3e/FLAGad87380a4 [2022-11-19 06:36:58,560 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:36:58,563 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2022-11-19 06:36:58,652 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/data/19c430c87/5e127a3efb9a4d67b2fe0936726c9c3e/FLAGad87380a4 [2022-11-19 06:36:58,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/data/19c430c87/5e127a3efb9a4d67b2fe0936726c9c3e [2022-11-19 06:36:58,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:36:58,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:36:58,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:36:58,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:36:58,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:36:58,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:36:58" (1/1) ... [2022-11-19 06:36:58,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dcedf79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:36:58, skipping insertion in model container [2022-11-19 06:36:58,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:36:58" (1/1) ... [2022-11-19 06:36:58,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:36:58,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:37:08,025 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659699,659712] [2022-11-19 06:37:08,029 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659844,659857] [2022-11-19 06:37:08,030 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659990,660003] [2022-11-19 06:37:08,030 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660155,660168] [2022-11-19 06:37:08,031 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660313,660326] [2022-11-19 06:37:08,031 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660471,660484] [2022-11-19 06:37:08,032 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660629,660642] [2022-11-19 06:37:08,033 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660789,660802] [2022-11-19 06:37:08,033 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660948,660961] [2022-11-19 06:37:08,034 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661087,661100] [2022-11-19 06:37:08,034 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661229,661242] [2022-11-19 06:37:08,035 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661378,661391] [2022-11-19 06:37:08,036 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661517,661530] [2022-11-19 06:37:08,036 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661672,661685] [2022-11-19 06:37:08,037 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661832,661845] [2022-11-19 06:37:08,037 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661983,661996] [2022-11-19 06:37:08,038 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662134,662147] [2022-11-19 06:37:08,052 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662286,662299] [2022-11-19 06:37:08,052 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662435,662448] [2022-11-19 06:37:08,053 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662583,662596] [2022-11-19 06:37:08,054 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662740,662753] [2022-11-19 06:37:08,054 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662889,662902] [2022-11-19 06:37:08,055 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663045,663058] [2022-11-19 06:37:08,056 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663198,663211] [2022-11-19 06:37:08,056 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663344,663357] [2022-11-19 06:37:08,057 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663487,663500] [2022-11-19 06:37:08,057 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663639,663652] [2022-11-19 06:37:08,061 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663785,663798] [2022-11-19 06:37:08,062 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663930,663943] [2022-11-19 06:37:08,064 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664084,664097] [2022-11-19 06:37:08,066 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664235,664248] [2022-11-19 06:37:08,067 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664390,664403] [2022-11-19 06:37:08,067 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664542,664555] [2022-11-19 06:37:08,069 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664697,664710] [2022-11-19 06:37:08,069 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664861,664874] [2022-11-19 06:37:08,070 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665017,665030] [2022-11-19 06:37:08,071 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665181,665194] [2022-11-19 06:37:08,072 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665323,665336] [2022-11-19 06:37:08,072 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665481,665494] [2022-11-19 06:37:08,073 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665648,665661] [2022-11-19 06:37:08,074 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665807,665820] [2022-11-19 06:37:08,075 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665966,665979] [2022-11-19 06:37:08,076 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666115,666128] [2022-11-19 06:37:08,077 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666262,666275] [2022-11-19 06:37:08,078 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666401,666414] [2022-11-19 06:37:08,078 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666564,666577] [2022-11-19 06:37:08,079 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666730,666743] [2022-11-19 06:37:08,080 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666894,666907] [2022-11-19 06:37:08,081 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667059,667072] [2022-11-19 06:37:08,082 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667224,667237] [2022-11-19 06:37:08,082 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667390,667403] [2022-11-19 06:37:08,083 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667555,667568] [2022-11-19 06:37:08,083 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667722,667735] [2022-11-19 06:37:08,084 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667882,667895] [2022-11-19 06:37:08,085 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668044,668057] [2022-11-19 06:37:08,086 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668203,668216] [2022-11-19 06:37:08,086 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668349,668362] [2022-11-19 06:37:08,087 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668492,668505] [2022-11-19 06:37:08,087 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668636,668649] [2022-11-19 06:37:08,088 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668779,668792] [2022-11-19 06:37:08,089 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668923,668936] [2022-11-19 06:37:08,090 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669064,669077] [2022-11-19 06:37:08,090 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669202,669215] [2022-11-19 06:37:08,091 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669360,669373] [2022-11-19 06:37:08,091 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669519,669532] [2022-11-19 06:37:08,092 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669675,669688] [2022-11-19 06:37:08,093 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669824,669837] [2022-11-19 06:37:08,093 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669976,669989] [2022-11-19 06:37:08,094 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670127,670140] [2022-11-19 06:37:08,095 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670276,670289] [2022-11-19 06:37:08,095 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670428,670441] [2022-11-19 06:37:08,096 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670576,670589] [2022-11-19 06:37:08,096 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670729,670742] [2022-11-19 06:37:08,097 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670880,670893] [2022-11-19 06:37:08,098 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671030,671043] [2022-11-19 06:37:08,098 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671177,671190] [2022-11-19 06:37:08,099 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671328,671341] [2022-11-19 06:37:08,100 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671479,671492] [2022-11-19 06:37:08,100 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671627,671640] [2022-11-19 06:37:08,101 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671793,671806] [2022-11-19 06:37:08,102 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671962,671975] [2022-11-19 06:37:08,102 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672129,672142] [2022-11-19 06:37:08,103 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672297,672310] [2022-11-19 06:37:08,103 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672447,672460] [2022-11-19 06:37:08,104 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672594,672607] [2022-11-19 06:37:08,105 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672755,672768] [2022-11-19 06:37:08,105 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672925,672938] [2022-11-19 06:37:08,106 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[673087,673100] [2022-11-19 06:37:08,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:37:08,206 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:37:09,085 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659699,659712] [2022-11-19 06:37:09,086 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659844,659857] [2022-11-19 06:37:09,087 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659990,660003] [2022-11-19 06:37:09,087 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660155,660168] [2022-11-19 06:37:09,088 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660313,660326] [2022-11-19 06:37:09,088 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660471,660484] [2022-11-19 06:37:09,089 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660629,660642] [2022-11-19 06:37:09,089 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660789,660802] [2022-11-19 06:37:09,090 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660948,660961] [2022-11-19 06:37:09,091 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661087,661100] [2022-11-19 06:37:09,091 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661229,661242] [2022-11-19 06:37:09,092 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661378,661391] [2022-11-19 06:37:09,092 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661517,661530] [2022-11-19 06:37:09,093 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661672,661685] [2022-11-19 06:37:09,093 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661832,661845] [2022-11-19 06:37:09,094 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661983,661996] [2022-11-19 06:37:09,094 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662134,662147] [2022-11-19 06:37:09,095 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662286,662299] [2022-11-19 06:37:09,095 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662435,662448] [2022-11-19 06:37:09,096 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662583,662596] [2022-11-19 06:37:09,096 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662740,662753] [2022-11-19 06:37:09,097 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662889,662902] [2022-11-19 06:37:09,098 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663045,663058] [2022-11-19 06:37:09,098 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663198,663211] [2022-11-19 06:37:09,099 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663344,663357] [2022-11-19 06:37:09,100 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663487,663500] [2022-11-19 06:37:09,100 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663639,663652] [2022-11-19 06:37:09,101 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663785,663798] [2022-11-19 06:37:09,101 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663930,663943] [2022-11-19 06:37:09,102 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664084,664097] [2022-11-19 06:37:09,103 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664235,664248] [2022-11-19 06:37:09,103 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664390,664403] [2022-11-19 06:37:09,104 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664542,664555] [2022-11-19 06:37:09,104 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664697,664710] [2022-11-19 06:37:09,105 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664861,664874] [2022-11-19 06:37:09,106 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665017,665030] [2022-11-19 06:37:09,106 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665181,665194] [2022-11-19 06:37:09,107 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665323,665336] [2022-11-19 06:37:09,107 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665481,665494] [2022-11-19 06:37:09,108 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665648,665661] [2022-11-19 06:37:09,108 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665807,665820] [2022-11-19 06:37:09,109 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665966,665979] [2022-11-19 06:37:09,109 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666115,666128] [2022-11-19 06:37:09,110 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666262,666275] [2022-11-19 06:37:09,110 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666401,666414] [2022-11-19 06:37:09,111 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666564,666577] [2022-11-19 06:37:09,111 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666730,666743] [2022-11-19 06:37:09,112 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666894,666907] [2022-11-19 06:37:09,112 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667059,667072] [2022-11-19 06:37:09,113 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667224,667237] [2022-11-19 06:37:09,113 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667390,667403] [2022-11-19 06:37:09,114 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667555,667568] [2022-11-19 06:37:09,114 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667722,667735] [2022-11-19 06:37:09,115 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667882,667895] [2022-11-19 06:37:09,116 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668044,668057] [2022-11-19 06:37:09,116 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668203,668216] [2022-11-19 06:37:09,117 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668349,668362] [2022-11-19 06:37:09,118 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668492,668505] [2022-11-19 06:37:09,118 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668636,668649] [2022-11-19 06:37:09,119 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668779,668792] [2022-11-19 06:37:09,119 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668923,668936] [2022-11-19 06:37:09,120 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669064,669077] [2022-11-19 06:37:09,120 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669202,669215] [2022-11-19 06:37:09,121 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669360,669373] [2022-11-19 06:37:09,121 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669519,669532] [2022-11-19 06:37:09,122 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669675,669688] [2022-11-19 06:37:09,123 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669824,669837] [2022-11-19 06:37:09,123 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669976,669989] [2022-11-19 06:37:09,124 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670127,670140] [2022-11-19 06:37:09,124 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670276,670289] [2022-11-19 06:37:09,125 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670428,670441] [2022-11-19 06:37:09,125 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670576,670589] [2022-11-19 06:37:09,126 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670729,670742] [2022-11-19 06:37:09,126 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670880,670893] [2022-11-19 06:37:09,126 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671030,671043] [2022-11-19 06:37:09,127 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671177,671190] [2022-11-19 06:37:09,127 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671328,671341] [2022-11-19 06:37:09,128 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671479,671492] [2022-11-19 06:37:09,128 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671627,671640] [2022-11-19 06:37:09,129 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671793,671806] [2022-11-19 06:37:09,129 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671962,671975] [2022-11-19 06:37:09,130 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672129,672142] [2022-11-19 06:37:09,130 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672297,672310] [2022-11-19 06:37:09,131 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672447,672460] [2022-11-19 06:37:09,131 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672594,672607] [2022-11-19 06:37:09,132 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672755,672768] [2022-11-19 06:37:09,132 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672925,672938] [2022-11-19 06:37:09,133 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[673087,673100] [2022-11-19 06:37:09,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:37:09,612 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:37:09,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:09 WrapperNode [2022-11-19 06:37:09,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:37:09,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:37:09,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:37:09,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:37:09,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:09" (1/1) ... [2022-11-19 06:37:09,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:09" (1/1) ... [2022-11-19 06:37:10,274 INFO L138 Inliner]: procedures = 981, calls = 6465, calls flagged for inlining = 457, calls inlined = 329, statements flattened = 13013 [2022-11-19 06:37:10,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:37:10,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:37:10,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:37:10,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:37:10,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:09" (1/1) ... [2022-11-19 06:37:10,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:09" (1/1) ... [2022-11-19 06:37:10,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:09" (1/1) ... [2022-11-19 06:37:10,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:09" (1/1) ... [2022-11-19 06:37:10,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:09" (1/1) ... [2022-11-19 06:37:10,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:09" (1/1) ... [2022-11-19 06:37:10,841 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:09" (1/1) ... [2022-11-19 06:37:10,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:09" (1/1) ... [2022-11-19 06:37:11,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:37:11,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:37:11,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:37:11,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:37:11,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:09" (1/1) ... [2022-11-19 06:37:11,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:37:11,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:37:11,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:37:11,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:37:11,236 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2022-11-19 06:37:11,236 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2022-11-19 06:37:11,236 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-19 06:37:11,237 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2022-11-19 06:37:11,237 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2022-11-19 06:37:11,237 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_DeleteNSEntry [2022-11-19 06:37:11,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_DeleteNSEntry [2022-11-19 06:37:11,237 INFO L130 BoogieDeclarations]: Found specification of procedure ncp__io2vol [2022-11-19 06:37:11,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp__io2vol [2022-11-19 06:37:11,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-19 06:37:11,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-19 06:37:11,238 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_dates [2022-11-19 06:37:11,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_dates [2022-11-19 06:37:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure __ncp_start_request [2022-11-19 06:37:11,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncp_start_request [2022-11-19 06:37:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-19 06:37:11,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-19 06:37:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 06:37:11,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 06:37:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_info [2022-11-19 06:37:11,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_info [2022-11-19 06:37:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_write [2022-11-19 06:37:11,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_write [2022-11-19 06:37:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-11-19 06:37:11,241 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-11-19 06:37:11,241 INFO L130 BoogieDeclarations]: Found specification of procedure sign_packet [2022-11-19 06:37:11,241 INFO L138 BoogieDeclarations]: Found implementation of procedure sign_packet [2022-11-19 06:37:11,241 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_mmap_fault [2022-11-19 06:37:11,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_mmap_fault [2022-11-19 06:37:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_nfs_info [2022-11-19 06:37:11,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_nfs_info [2022-11-19 06:37:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure grab_cache_page [2022-11-19 06:37:11,242 INFO L138 BoogieDeclarations]: Found implementation of procedure grab_cache_page [2022-11-19 06:37:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___1 [2022-11-19 06:37:11,243 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___1 [2022-11-19 06:37:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___0 [2022-11-19 06:37:11,243 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___0 [2022-11-19 06:37:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_make_open [2022-11-19 06:37:11,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_make_open [2022-11-19 06:37:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 06:37:11,244 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 06:37:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-11-19 06:37:11,244 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-11-19 06:37:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-19 06:37:11,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-19 06:37:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-19 06:37:11,245 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-19 06:37:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 06:37:11,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 06:37:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-19 06:37:11,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-19 06:37:11,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:37:11,259 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_ioctl [2022-11-19 06:37:11,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_ioctl [2022-11-19 06:37:11,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-19 06:37:11,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-19 06:37:11,260 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2022-11-19 06:37:11,260 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2022-11-19 06:37:11,260 INFO L130 BoogieDeclarations]: Found specification of procedure iunique [2022-11-19 06:37:11,260 INFO L138 BoogieDeclarations]: Found implementation of procedure iunique [2022-11-19 06:37:11,261 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_le16 [2022-11-19 06:37:11,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_le16 [2022-11-19 06:37:11,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 06:37:11,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 06:37:11,261 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_statfs [2022-11-19 06:37:11,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_statfs [2022-11-19 06:37:11,262 INFO L130 BoogieDeclarations]: Found specification of procedure assert_server_locked [2022-11-19 06:37:11,262 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_server_locked [2022-11-19 06:37:11,262 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-19 06:37:11,262 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-19 06:37:11,263 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_write_kernel [2022-11-19 06:37:11,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_write_kernel [2022-11-19 06:37:11,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-19 06:37:11,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-19 06:37:11,263 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_byte [2022-11-19 06:37:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_byte [2022-11-19 06:37:11,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:37:11,264 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-19 06:37:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-19 06:37:11,264 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~wchar_t~0~X~$Pointer$~X~int~TO~int [2022-11-19 06:37:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~wchar_t~0~X~$Pointer$~X~int~TO~int [2022-11-19 06:37:11,265 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_write [2022-11-19 06:37:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_write [2022-11-19 06:37:11,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-19 06:37:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-19 06:37:11,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:37:11,266 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_destroy_inode [2022-11-19 06:37:11,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_destroy_inode [2022-11-19 06:37:11,266 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_attrs [2022-11-19 06:37:11,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_attrs [2022-11-19 06:37:11,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 06:37:11,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 06:37:11,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:37:11,267 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 06:37:11,267 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_destroy [2022-11-19 06:37:11,267 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_destroy [2022-11-19 06:37:11,267 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-19 06:37:11,268 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-19 06:37:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_get_volume_root [2022-11-19 06:37:11,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_get_volume_root [2022-11-19 06:37:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 06:37:11,268 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 06:37:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ncp_server [2022-11-19 06:37:11,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ncp_server [2022-11-19 06:37:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure unload_nls [2022-11-19 06:37:11,269 INFO L138 BoogieDeclarations]: Found implementation of procedure unload_nls [2022-11-19 06:37:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_request [2022-11-19 06:37:11,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_request [2022-11-19 06:37:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_date_dos2unix [2022-11-19 06:37:11,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_date_dos2unix [2022-11-19 06:37:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_new_dentry [2022-11-19 06:37:11,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_new_dentry [2022-11-19 06:37:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2022-11-19 06:37:11,270 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2022-11-19 06:37:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 06:37:11,271 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 06:37:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure nls_tolower [2022-11-19 06:37:11,271 INFO L138 BoogieDeclarations]: Found implementation of procedure nls_tolower [2022-11-19 06:37:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:37:11,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:37:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 06:37:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 06:37:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_mutex_of_ncp_inode_info [2022-11-19 06:37:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_mutex_of_ncp_inode_info [2022-11-19 06:37:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2022-11-19 06:37:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2022-11-19 06:37:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-19 06:37:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-19 06:37:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure dir_emit [2022-11-19 06:37:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure dir_emit [2022-11-19 06:37:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 06:37:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2022-11-19 06:37:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2022-11-19 06:37:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-19 06:37:11,274 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-19 06:37:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-19 06:37:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_146 [2022-11-19 06:37:11,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_146 [2022-11-19 06:37:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_rmdir [2022-11-19 06:37:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_rmdir [2022-11-19 06:37:11,298 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-19 06:37:11,299 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-19 06:37:11,299 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_read [2022-11-19 06:37:11,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_read [2022-11-19 06:37:11,299 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2022-11-19 06:37:11,299 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2022-11-19 06:37:11,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_i_mutex_of_inode [2022-11-19 06:37:11,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_i_mutex_of_inode [2022-11-19 06:37:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_compat_ioctl [2022-11-19 06:37:11,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_compat_ioctl [2022-11-19 06:37:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure WSET_LH [2022-11-19 06:37:11,300 INFO L138 BoogieDeclarations]: Found implementation of procedure WSET_LH [2022-11-19 06:37:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 06:37:11,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 06:37:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure setattr_copy [2022-11-19 06:37:11,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setattr_copy [2022-11-19 06:37:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-19 06:37:11,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-19 06:37:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2022-11-19 06:37:11,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2022-11-19 06:37:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-19 06:37:11,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-19 06:37:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_data [2022-11-19 06:37:11,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_data [2022-11-19 06:37:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:37:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 06:37:11,302 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 06:37:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-19 06:37:11,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-19 06:37:11,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:37:11,303 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-19 06:37:11,303 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-19 06:37:11,303 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_d_prune [2022-11-19 06:37:11,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_d_prune [2022-11-19 06:37:11,303 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2022-11-19 06:37:11,303 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2022-11-19 06:37:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_byte [2022-11-19 06:37:11,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_byte [2022-11-19 06:37:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_header [2022-11-19 06:37:11,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_header [2022-11-19 06:37:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure pagecache_get_page [2022-11-19 06:37:11,304 INFO L138 BoogieDeclarations]: Found implementation of procedure pagecache_get_page [2022-11-19 06:37:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_mem [2022-11-19 06:37:11,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_mem [2022-11-19 06:37:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure kill_anon_super [2022-11-19 06:37:11,305 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_anon_super [2022-11-19 06:37:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_root_setup_lock_of_ncp_server [2022-11-19 06:37:11,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_root_setup_lock_of_ncp_server [2022-11-19 06:37:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_is_server_root [2022-11-19 06:37:11,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_is_server_root [2022-11-19 06:37:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_is_nfs_extras [2022-11-19 06:37:11,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_is_nfs_extras [2022-11-19 06:37:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_release [2022-11-19 06:37:11,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_release [2022-11-19 06:37:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-19 06:37:11,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-19 06:37:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure ncpdgram_send [2022-11-19 06:37:11,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ncpdgram_send [2022-11-19 06:37:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-19 06:37:11,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-19 06:37:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-19 06:37:11,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-19 06:37:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_inode_close [2022-11-19 06:37:11,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_inode_close [2022-11-19 06:37:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure NCP_FINFO [2022-11-19 06:37:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure NCP_FINFO [2022-11-19 06:37:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure ncp__vol2io [2022-11-19 06:37:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp__vol2io [2022-11-19 06:37:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_creq_mutex_of_NOT_ARG_SIGN [2022-11-19 06:37:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_creq_mutex_of_NOT_ARG_SIGN [2022-11-19 06:37:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_RenameNSEntry [2022-11-19 06:37:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_RenameNSEntry [2022-11-19 06:37:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_i_mutex_of_inode [2022-11-19 06:37:11,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_i_mutex_of_inode [2022-11-19 06:37:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-11-19 06:37:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-11-19 06:37:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_notify_change [2022-11-19 06:37:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_notify_change [2022-11-19 06:37:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_75 [2022-11-19 06:37:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_75 [2022-11-19 06:37:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_dword [2022-11-19 06:37:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_dword [2022-11-19 06:37:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-19 06:37:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-19 06:37:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:37:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure mark_inode_dirty [2022-11-19 06:37:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_inode_dirty [2022-11-19 06:37:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_inode [2022-11-19 06:37:11,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_inode [2022-11-19 06:37:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_del_file_or_subdir [2022-11-19 06:37:11,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_del_file_or_subdir [2022-11-19 06:37:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 06:37:11,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 06:37:11,340 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_create_new [2022-11-19 06:37:11,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_create_new [2022-11-19 06:37:11,340 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-19 06:37:11,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-19 06:37:11,340 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-19 06:37:11,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-19 06:37:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_request [2022-11-19 06:37:11,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_request [2022-11-19 06:37:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure PageUptodate [2022-11-19 06:37:11,341 INFO L138 BoogieDeclarations]: Found implementation of procedure PageUptodate [2022-11-19 06:37:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-19 06:37:11,341 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-19 06:37:11,342 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2022-11-19 06:37:11,342 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2022-11-19 06:37:11,342 INFO L130 BoogieDeclarations]: Found specification of procedure NCP_SBP [2022-11-19 06:37:11,342 INFO L138 BoogieDeclarations]: Found implementation of procedure NCP_SBP [2022-11-19 06:37:11,342 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2022-11-19 06:37:11,342 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2022-11-19 06:37:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_hash_dentry [2022-11-19 06:37:11,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_hash_dentry [2022-11-19 06:37:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure load_nls_default [2022-11-19 06:37:11,343 INFO L138 BoogieDeclarations]: Found implementation of procedure load_nls_default [2022-11-19 06:37:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 06:37:11,343 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 06:37:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_open_create_file_or_subdir [2022-11-19 06:37:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_open_create_file_or_subdir [2022-11-19 06:37:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-19 06:37:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-19 06:37:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-19 06:37:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-19 06:37:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 06:37:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 06:37:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure WVAL_LH___0 [2022-11-19 06:37:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure WVAL_LH___0 [2022-11-19 06:37:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure d_rehash [2022-11-19 06:37:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure d_rehash [2022-11-19 06:37:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_evict_inode [2022-11-19 06:37:11,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_evict_inode [2022-11-19 06:37:11,346 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_show_options [2022-11-19 06:37:11,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_show_options [2022-11-19 06:37:11,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-19 06:37:11,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-19 06:37:11,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-19 06:37:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-19 06:37:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure generic_file_llseek [2022-11-19 06:37:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_file_llseek [2022-11-19 06:37:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_before_release_sock [2022-11-19 06:37:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_before_release_sock [2022-11-19 06:37:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_be16 [2022-11-19 06:37:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_be16 [2022-11-19 06:37:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_make_closed [2022-11-19 06:37:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_make_closed [2022-11-19 06:37:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 06:37:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 06:37:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_del_file_or_subdir2 [2022-11-19 06:37:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_del_file_or_subdir2 [2022-11-19 06:37:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_modify_nfs_info [2022-11-19 06:37:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_modify_nfs_info [2022-11-19 06:37:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_case_sensitive [2022-11-19 06:37:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_case_sensitive [2022-11-19 06:37:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 06:37:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 06:37:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-19 06:37:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-19 06:37:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_inodecache [2022-11-19 06:37:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_inodecache [2022-11-19 06:37:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:37:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~~loff_t~0~X~~u64~0~X~int~TO~int [2022-11-19 06:37:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~~loff_t~0~X~~u64~0~X~int~TO~int [2022-11-19 06:37:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure __ncp_abort_request [2022-11-19 06:37:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncp_abort_request [2022-11-19 06:37:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2022-11-19 06:37:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2022-11-19 06:37:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2022-11-19 06:37:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_word [2022-11-19 06:37:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_word [2022-11-19 06:37:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_dword_lh [2022-11-19 06:37:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_dword_lh [2022-11-19 06:37:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 06:37:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_do_request [2022-11-19 06:37:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_do_request [2022-11-19 06:37:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 06:37:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 06:37:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_inode_close___3 [2022-11-19 06:37:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_inode_close___3 [2022-11-19 06:37:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 06:37:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_date_unix2dos [2022-11-19 06:37:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_date_unix2dos [2022-11-19 06:37:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-19 06:37:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-19 06:37:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-19 06:37:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-19 06:37:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 06:37:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 06:37:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_ren_or_mov_file_or_subdir [2022-11-19 06:37:11,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_ren_or_mov_file_or_subdir [2022-11-19 06:37:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-19 06:37:11,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-19 06:37:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-11-19 06:37:11,371 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-11-19 06:37:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_creq_mutex_of_NOT_ARG_SIGN [2022-11-19 06:37:11,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_creq_mutex_of_NOT_ARG_SIGN [2022-11-19 06:37:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_request2 [2022-11-19 06:37:11,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_request2 [2022-11-19 06:37:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 06:37:11,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 06:37:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_request_s [2022-11-19 06:37:11,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_request_s [2022-11-19 06:37:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-19 06:37:11,373 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-19 06:37:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-19 06:37:11,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-19 06:37:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_lock_server [2022-11-19 06:37:11,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_lock_server [2022-11-19 06:37:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure DSET_LH [2022-11-19 06:37:11,374 INFO L138 BoogieDeclarations]: Found implementation of procedure DSET_LH [2022-11-19 06:37:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_close_file [2022-11-19 06:37:11,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_close_file [2022-11-19 06:37:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure nwsign [2022-11-19 06:37:11,374 INFO L138 BoogieDeclarations]: Found implementation of procedure nwsign [2022-11-19 06:37:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-11-19 06:37:11,375 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-11-19 06:37:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_known_namespace [2022-11-19 06:37:11,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_known_namespace [2022-11-19 06:37:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure load_nls [2022-11-19 06:37:11,375 INFO L138 BoogieDeclarations]: Found implementation of procedure load_nls [2022-11-19 06:37:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_sock__double_release [2022-11-19 06:37:11,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_sock__double_release [2022-11-19 06:37:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure DVAL_LH___0 [2022-11-19 06:37:11,376 INFO L138 BoogieDeclarations]: Found implementation of procedure DVAL_LH___0 [2022-11-19 06:37:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_readdir [2022-11-19 06:37:11,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_readdir [2022-11-19 06:37:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-19 06:37:11,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-19 06:37:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-19 06:37:11,377 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-19 06:37:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_read_kernel [2022-11-19 06:37:11,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_read_kernel [2022-11-19 06:37:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-19 06:37:11,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-19 06:37:11,378 INFO L130 BoogieDeclarations]: Found specification of procedure rol32 [2022-11-19 06:37:11,378 INFO L138 BoogieDeclarations]: Found implementation of procedure rol32 [2022-11-19 06:37:11,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 06:37:11,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 06:37:11,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 06:37:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-19 06:37:11,379 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-19 06:37:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 06:37:11,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 06:37:11,379 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_disconnect [2022-11-19 06:37:11,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_disconnect [2022-11-19 06:37:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure inode_permission [2022-11-19 06:37:11,380 INFO L138 BoogieDeclarations]: Found implementation of procedure inode_permission [2022-11-19 06:37:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_extract_file_info [2022-11-19 06:37:11,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_extract_file_info [2022-11-19 06:37:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_modify_file_or_subdir_dos_info_path [2022-11-19 06:37:11,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_modify_file_or_subdir_dos_info_path [2022-11-19 06:37:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_put_super [2022-11-19 06:37:11,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_put_super [2022-11-19 06:37:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_lookup_volume [2022-11-19 06:37:11,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_lookup_volume [2022-11-19 06:37:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure __ncptcp_try_send [2022-11-19 06:37:11,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncptcp_try_send [2022-11-19 06:37:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-11-19 06:37:11,382 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-11-19 06:37:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 06:37:11,382 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 06:37:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_mmap [2022-11-19 06:37:11,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_mmap [2022-11-19 06:37:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_be16 [2022-11-19 06:37:11,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_be16 [2022-11-19 06:37:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure do_send [2022-11-19 06:37:11,383 INFO L138 BoogieDeclarations]: Found implementation of procedure do_send [2022-11-19 06:37:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-19 06:37:11,383 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-19 06:37:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_pstring [2022-11-19 06:37:11,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_pstring [2022-11-19 06:37:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_root_setup_lock_of_ncp_server [2022-11-19 06:37:11,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_root_setup_lock_of_ncp_server [2022-11-19 06:37:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-11-19 06:37:11,384 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-11-19 06:37:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_mtime [2022-11-19 06:37:11,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_mtime [2022-11-19 06:37:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_unlink [2022-11-19 06:37:11,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_unlink [2022-11-19 06:37:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_dword [2022-11-19 06:37:11,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_dword [2022-11-19 06:37:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-11-19 06:37:11,386 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-11-19 06:37:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure file_accessed [2022-11-19 06:37:11,386 INFO L138 BoogieDeclarations]: Found implementation of procedure file_accessed [2022-11-19 06:37:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-11-19 06:37:11,386 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-11-19 06:37:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_age_dentry [2022-11-19 06:37:11,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_age_dentry [2022-11-19 06:37:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_handle_path [2022-11-19 06:37:11,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_handle_path [2022-11-19 06:37:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-19 06:37:11,387 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-19 06:37:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-19 06:37:11,387 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-19 06:37:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 06:37:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 06:37:11,388 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 06:37:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-19 06:37:11,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-19 06:37:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-19 06:37:11,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-19 06:37:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_iget [2022-11-19 06:37:11,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_iget [2022-11-19 06:37:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 06:37:11,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 06:37:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_fill_cache [2022-11-19 06:37:11,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_fill_cache [2022-11-19 06:37:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_stop_tasks [2022-11-19 06:37:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_stop_tasks [2022-11-19 06:37:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_dirent [2022-11-19 06:37:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_dirent [2022-11-19 06:37:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_instantiate [2022-11-19 06:37:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_instantiate [2022-11-19 06:37:11,391 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_single_volume [2022-11-19 06:37:11,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_single_volume [2022-11-19 06:37:11,391 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_symlink_readpage [2022-11-19 06:37:11,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_symlink_readpage [2022-11-19 06:37:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-19 06:37:11,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-19 06:37:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure DVAL_LH [2022-11-19 06:37:11,407 INFO L138 BoogieDeclarations]: Found implementation of procedure DVAL_LH [2022-11-19 06:37:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-19 06:37:11,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-19 06:37:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_74 [2022-11-19 06:37:11,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_74 [2022-11-19 06:37:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_dword_lh [2022-11-19 06:37:11,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_dword_lh [2022-11-19 06:37:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-19 06:37:11,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-19 06:37:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 06:37:11,409 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 06:37:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_siglock_of_sighand_struct [2022-11-19 06:37:11,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_siglock_of_sighand_struct [2022-11-19 06:37:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-19 06:37:11,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-19 06:37:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2022-11-19 06:37:11,410 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2022-11-19 06:37:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-11-19 06:37:11,410 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-11-19 06:37:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-19 06:37:11,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-19 06:37:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_req_put [2022-11-19 06:37:11,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_req_put [2022-11-19 06:37:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-19 06:37:11,411 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-19 06:37:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-19 06:37:11,411 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-19 06:37:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_conn_valid [2022-11-19 06:37:11,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_conn_valid [2022-11-19 06:37:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-19 06:37:11,412 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-19 06:37:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 06:37:11,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 06:37:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_be32 [2022-11-19 06:37:11,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_be32 [2022-11-19 06:37:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_mutex_of_ncp_inode_info [2022-11-19 06:37:11,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_mutex_of_ncp_inode_info [2022-11-19 06:37:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_finish_request [2022-11-19 06:37:11,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_finish_request [2022-11-19 06:37:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-19 06:37:11,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-19 06:37:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_inode2 [2022-11-19 06:37:11,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_inode2 [2022-11-19 06:37:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 06:37:11,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 06:37:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:37:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2022-11-19 06:37:11,414 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2022-11-19 06:37:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-19 06:37:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_unlock_server [2022-11-19 06:37:11,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_unlock_server [2022-11-19 06:37:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2022-11-19 06:37:11,415 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2022-11-19 06:37:13,222 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:37:13,228 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:37:13,511 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 06:37:28,239 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:37:31,229 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:37:31,230 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-11-19 06:37:31,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:37:31 BoogieIcfgContainer [2022-11-19 06:37:31,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:37:31,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:37:31,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:37:31,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:37:31,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:36:58" (1/3) ... [2022-11-19 06:37:31,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57298357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:37:31, skipping insertion in model container [2022-11-19 06:37:31,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:09" (2/3) ... [2022-11-19 06:37:31,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57298357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:37:31, skipping insertion in model container [2022-11-19 06:37:31,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:37:31" (3/3) ... [2022-11-19 06:37:31,250 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2022-11-19 06:37:31,270 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:37:31,271 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-11-19 06:37:31,520 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:37:31,526 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;@2fa44ab7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:37:31,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-11-19 06:37:31,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 3581 states, 2044 states have (on average 1.3087084148727985) internal successors, (2675), 2136 states have internal predecessors, (2675), 1261 states have call successors, (1261), 246 states have call predecessors, (1261), 245 states have return successors, (1252), 1230 states have call predecessors, (1252), 1252 states have call successors, (1252) [2022-11-19 06:37:31,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-19 06:37:31,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:31,551 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 06:37:31,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:37:31,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:31,558 INFO L85 PathProgramCache]: Analyzing trace with hash 377645043, now seen corresponding path program 1 times [2022-11-19 06:37:31,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:37:31,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898012842] [2022-11-19 06:37:31,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:31,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:37:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:32,703 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 06:37:32,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:37:32,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898012842] [2022-11-19 06:37:32,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898012842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:32,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:32,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:37:32,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307167021] [2022-11-19 06:37:32,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:32,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:37:32,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:37:32,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:37:32,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:37:32,764 INFO L87 Difference]: Start difference. First operand has 3581 states, 2044 states have (on average 1.3087084148727985) internal successors, (2675), 2136 states have internal predecessors, (2675), 1261 states have call successors, (1261), 246 states have call predecessors, (1261), 245 states have return successors, (1252), 1230 states have call predecessors, (1252), 1252 states have call successors, (1252) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 06:37:39,459 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 [] [2022-11-19 06:37:39,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:39,507 INFO L93 Difference]: Finished difference Result 7111 states and 10670 transitions. [2022-11-19 06:37:39,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:37:39,510 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2022-11-19 06:37:39,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:39,555 INFO L225 Difference]: With dead ends: 7111 [2022-11-19 06:37:39,555 INFO L226 Difference]: Without dead ends: 3534 [2022-11-19 06:37:39,586 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 [2022-11-19 06:37:39,589 INFO L413 NwaCegarLoop]: 4607 mSDtfsCounter, 5082 mSDsluCounter, 4599 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5087 SdHoareTripleChecker+Valid, 9206 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:39,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5087 Valid, 9206 Invalid, 955 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 954 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-19 06:37:39,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3534 states. [2022-11-19 06:37:39,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3534 to 3532. [2022-11-19 06:37:39,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3532 states, 2019 states have (on average 1.283308568598316) internal successors, (2591), 2094 states have internal predecessors, (2591), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-19 06:37:39,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 5063 transitions. [2022-11-19 06:37:39,970 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 5063 transitions. Word has length 35 [2022-11-19 06:37:39,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:39,970 INFO L495 AbstractCegarLoop]: Abstraction has 3532 states and 5063 transitions. [2022-11-19 06:37:39,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 06:37:39,971 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 5063 transitions. [2022-11-19 06:37:39,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-19 06:37:39,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:39,974 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 06:37:39,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:37:39,975 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_for_read_sectionErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:37:39,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:39,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2145775704, now seen corresponding path program 1 times [2022-11-19 06:37:39,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:37:39,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237955601] [2022-11-19 06:37:39,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:39,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:37:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:40,644 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 06:37:40,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:37:40,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237955601] [2022-11-19 06:37:40,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237955601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:40,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:40,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:37:40,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222252293] [2022-11-19 06:37:40,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:40,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:37:40,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:37:40,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:37:40,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:37:40,649 INFO L87 Difference]: Start difference. First operand 3532 states and 5063 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 06:37:47,707 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 [] [2022-11-19 06:37:47,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:47,748 INFO L93 Difference]: Finished difference Result 3532 states and 5063 transitions. [2022-11-19 06:37:47,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:37:47,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2022-11-19 06:37:47,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:47,770 INFO L225 Difference]: With dead ends: 3532 [2022-11-19 06:37:47,770 INFO L226 Difference]: Without dead ends: 3530 [2022-11-19 06:37:47,773 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 [2022-11-19 06:37:47,774 INFO L413 NwaCegarLoop]: 4582 mSDtfsCounter, 5050 mSDsluCounter, 4576 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5053 SdHoareTripleChecker+Valid, 9158 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:47,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5053 Valid, 9158 Invalid, 953 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 952 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-19 06:37:47,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3530 states. [2022-11-19 06:37:47,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3530 to 3530. [2022-11-19 06:37:47,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3530 states, 2018 states have (on average 1.2829534192269574) internal successors, (2589), 2092 states have internal predecessors, (2589), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-19 06:37:47,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 5061 transitions. [2022-11-19 06:37:47,993 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 5061 transitions. Word has length 37 [2022-11-19 06:37:47,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:47,993 INFO L495 AbstractCegarLoop]: Abstraction has 3530 states and 5061 transitions. [2022-11-19 06:37:47,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 06:37:47,994 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 5061 transitions. [2022-11-19 06:37:47,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-19 06:37:47,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:47,995 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 06:37:47,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:37:47,996 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_for_read_sectionErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:37:47,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:47,997 INFO L85 PathProgramCache]: Analyzing trace with hash -496407396, now seen corresponding path program 1 times [2022-11-19 06:37:47,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:37:47,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88680401] [2022-11-19 06:37:47,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:47,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:37:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:48,478 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 06:37:48,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:37:48,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88680401] [2022-11-19 06:37:48,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88680401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:48,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:48,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:37:48,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798855646] [2022-11-19 06:37:48,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:48,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:37:48,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:37:48,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:37:48,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:37:48,482 INFO L87 Difference]: Start difference. First operand 3530 states and 5061 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 06:37:54,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:56,548 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 [] [2022-11-19 06:37:56,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:56,589 INFO L93 Difference]: Finished difference Result 3530 states and 5061 transitions. [2022-11-19 06:37:56,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:37:56,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2022-11-19 06:37:56,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:56,617 INFO L225 Difference]: With dead ends: 3530 [2022-11-19 06:37:56,618 INFO L226 Difference]: Without dead ends: 3528 [2022-11-19 06:37:56,621 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 [2022-11-19 06:37:56,622 INFO L413 NwaCegarLoop]: 4580 mSDtfsCounter, 5042 mSDsluCounter, 4577 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5045 SdHoareTripleChecker+Valid, 9157 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:56,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5045 Valid, 9157 Invalid, 954 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-11-19 06:37:56,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2022-11-19 06:37:56,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3528. [2022-11-19 06:37:56,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 2017 states have (on average 1.282597917699554) internal successors, (2587), 2090 states have internal predecessors, (2587), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-19 06:37:56,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 5059 transitions. [2022-11-19 06:37:56,875 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 5059 transitions. Word has length 39 [2022-11-19 06:37:56,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:56,876 INFO L495 AbstractCegarLoop]: Abstraction has 3528 states and 5059 transitions. [2022-11-19 06:37:56,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 06:37:56,877 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 5059 transitions. [2022-11-19 06:37:56,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-19 06:37:56,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:56,879 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 06:37:56,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:37:56,879 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_for_read_sectionErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:37:56,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:56,880 INFO L85 PathProgramCache]: Analyzing trace with hash -296530749, now seen corresponding path program 1 times [2022-11-19 06:37:56,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:37:56,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946007704] [2022-11-19 06:37:56,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:56,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:37:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:57,490 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 06:37:57,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:37:57,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946007704] [2022-11-19 06:37:57,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946007704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:57,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:57,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:37:57,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163898641] [2022-11-19 06:37:57,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:57,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:37:57,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:37:57,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:37:57,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:37:57,494 INFO L87 Difference]: Start difference. First operand 3528 states and 5059 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 06:38:03,150 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 [] [2022-11-19 06:38:03,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:03,193 INFO L93 Difference]: Finished difference Result 3530 states and 5062 transitions. [2022-11-19 06:38:03,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:38:03,194 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, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2022-11-19 06:38:03,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:03,224 INFO L225 Difference]: With dead ends: 3530 [2022-11-19 06:38:03,224 INFO L226 Difference]: Without dead ends: 3528 [2022-11-19 06:38:03,229 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 [2022-11-19 06:38:03,232 INFO L413 NwaCegarLoop]: 4578 mSDtfsCounter, 5033 mSDsluCounter, 4579 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5038 SdHoareTripleChecker+Valid, 9157 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:03,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5038 Valid, 9157 Invalid, 954 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-19 06:38:03,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2022-11-19 06:38:03,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3526. [2022-11-19 06:38:03,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 2016 states have (on average 1.2822420634920635) internal successors, (2585), 2088 states have internal predecessors, (2585), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-19 06:38:03,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 5057 transitions. [2022-11-19 06:38:03,546 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 5057 transitions. Word has length 41 [2022-11-19 06:38:03,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:03,548 INFO L495 AbstractCegarLoop]: Abstraction has 3526 states and 5057 transitions. [2022-11-19 06:38:03,549 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, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 06:38:03,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 5057 transitions. [2022-11-19 06:38:03,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-19 06:38:03,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:03,559 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] [2022-11-19 06:38:03,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:38:03,559 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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 32 more)] === [2022-11-19 06:38:03,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:03,560 INFO L85 PathProgramCache]: Analyzing trace with hash 325959132, now seen corresponding path program 1 times [2022-11-19 06:38:03,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:03,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454181873] [2022-11-19 06:38:03,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:03,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:04,018 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:38:04,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:04,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454181873] [2022-11-19 06:38:04,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454181873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:38:04,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:38:04,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:38:04,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735732295] [2022-11-19 06:38:04,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:04,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:38:04,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:04,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:38:04,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:38:04,022 INFO L87 Difference]: Start difference. First operand 3526 states and 5057 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 06:38:09,942 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 [] [2022-11-19 06:38:09,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:09,972 INFO L93 Difference]: Finished difference Result 3528 states and 5060 transitions. [2022-11-19 06:38:09,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:38:09,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 49 [2022-11-19 06:38:09,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:10,001 INFO L225 Difference]: With dead ends: 3528 [2022-11-19 06:38:10,001 INFO L226 Difference]: Without dead ends: 3526 [2022-11-19 06:38:10,004 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 [2022-11-19 06:38:10,005 INFO L413 NwaCegarLoop]: 4576 mSDtfsCounter, 5035 mSDsluCounter, 4577 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5039 SdHoareTripleChecker+Valid, 9153 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:10,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5039 Valid, 9153 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-19 06:38:10,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3526 states. [2022-11-19 06:38:10,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3526 to 3524. [2022-11-19 06:38:10,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 2015 states have (on average 1.2818858560794044) internal successors, (2583), 2086 states have internal predecessors, (2583), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-19 06:38:10,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 5055 transitions. [2022-11-19 06:38:10,415 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 5055 transitions. Word has length 49 [2022-11-19 06:38:10,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:10,416 INFO L495 AbstractCegarLoop]: Abstraction has 3524 states and 5055 transitions. [2022-11-19 06:38:10,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 06:38:10,416 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 5055 transitions. [2022-11-19 06:38:10,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-19 06:38:10,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:10,419 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] [2022-11-19 06:38:10,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:38:10,419 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 32 more)] === [2022-11-19 06:38:10,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:10,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1954669425, now seen corresponding path program 1 times [2022-11-19 06:38:10,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:10,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861789958] [2022-11-19 06:38:10,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:10,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:10,970 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:38:10,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:10,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861789958] [2022-11-19 06:38:10,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861789958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:38:10,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:38:10,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:38:10,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262580841] [2022-11-19 06:38:10,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:10,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:38:10,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:10,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:38:10,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:38:10,974 INFO L87 Difference]: Start difference. First operand 3524 states and 5055 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-11-19 06:38:18,486 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 [] [2022-11-19 06:38:18,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:18,530 INFO L93 Difference]: Finished difference Result 3526 states and 5058 transitions. [2022-11-19 06:38:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:38:18,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 54 [2022-11-19 06:38:18,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:18,555 INFO L225 Difference]: With dead ends: 3526 [2022-11-19 06:38:18,555 INFO L226 Difference]: Without dead ends: 3524 [2022-11-19 06:38:18,559 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 [2022-11-19 06:38:18,559 INFO L413 NwaCegarLoop]: 4574 mSDtfsCounter, 5032 mSDsluCounter, 4575 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5036 SdHoareTripleChecker+Valid, 9149 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:18,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5036 Valid, 9149 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-11-19 06:38:18,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3524 states. [2022-11-19 06:38:18,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3524 to 3522. [2022-11-19 06:38:18,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3522 states, 2014 states have (on average 1.2815292949354518) internal successors, (2581), 2084 states have internal predecessors, (2581), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-19 06:38:18,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3522 states to 3522 states and 5053 transitions. [2022-11-19 06:38:18,915 INFO L78 Accepts]: Start accepts. Automaton has 3522 states and 5053 transitions. Word has length 54 [2022-11-19 06:38:18,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:18,917 INFO L495 AbstractCegarLoop]: Abstraction has 3522 states and 5053 transitions. [2022-11-19 06:38:18,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-11-19 06:38:18,918 INFO L276 IsEmpty]: Start isEmpty. Operand 3522 states and 5053 transitions. [2022-11-19 06:38:18,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-19 06:38:18,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:18,921 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] [2022-11-19 06:38:18,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 06:38:18,921 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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 32 more)] === [2022-11-19 06:38:18,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:18,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1413213687, now seen corresponding path program 1 times [2022-11-19 06:38:18,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:18,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273820285] [2022-11-19 06:38:18,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:18,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:19,356 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:38:19,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:19,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273820285] [2022-11-19 06:38:19,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273820285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:38:19,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:38:19,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:38:19,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696337922] [2022-11-19 06:38:19,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:19,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:38:19,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:19,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:38:19,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:38:19,361 INFO L87 Difference]: Start difference. First operand 3522 states and 5053 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-11-19 06:38:21,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:38:22,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:38:27,261 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 [] [2022-11-19 06:38:27,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:27,302 INFO L93 Difference]: Finished difference Result 3524 states and 5056 transitions. [2022-11-19 06:38:27,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:38:27,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 59 [2022-11-19 06:38:27,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:27,324 INFO L225 Difference]: With dead ends: 3524 [2022-11-19 06:38:27,324 INFO L226 Difference]: Without dead ends: 3522 [2022-11-19 06:38:27,327 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 [2022-11-19 06:38:27,328 INFO L413 NwaCegarLoop]: 4572 mSDtfsCounter, 5029 mSDsluCounter, 4573 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5033 SdHoareTripleChecker+Valid, 9145 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:27,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5033 Valid, 9145 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-19 06:38:27,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2022-11-19 06:38:27,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 3520. [2022-11-19 06:38:27,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3520 states, 2013 states have (on average 1.2811723795330352) internal successors, (2579), 2082 states have internal predecessors, (2579), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-19 06:38:27,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 5051 transitions. [2022-11-19 06:38:27,741 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 5051 transitions. Word has length 59 [2022-11-19 06:38:27,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:27,742 INFO L495 AbstractCegarLoop]: Abstraction has 3520 states and 5051 transitions. [2022-11-19 06:38:27,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-11-19 06:38:27,743 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 5051 transitions. [2022-11-19 06:38:27,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-19 06:38:27,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:27,746 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] [2022-11-19 06:38:27,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 06:38:27,746 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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 32 more)] === [2022-11-19 06:38:27,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:27,748 INFO L85 PathProgramCache]: Analyzing trace with hash 415610627, now seen corresponding path program 1 times [2022-11-19 06:38:27,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:27,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861085099] [2022-11-19 06:38:27,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:27,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:28,253 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:38:28,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:28,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861085099] [2022-11-19 06:38:28,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861085099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:38:28,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:38:28,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:38:28,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297055372] [2022-11-19 06:38:28,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:28,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:38:28,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:28,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:38:28,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:38:28,256 INFO L87 Difference]: Start difference. First operand 3520 states and 5051 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-11-19 06:38:34,029 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 [] [2022-11-19 06:38:34,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:34,070 INFO L93 Difference]: Finished difference Result 3522 states and 5054 transitions. [2022-11-19 06:38:34,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:38:34,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 64 [2022-11-19 06:38:34,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:34,094 INFO L225 Difference]: With dead ends: 3522 [2022-11-19 06:38:34,095 INFO L226 Difference]: Without dead ends: 3520 [2022-11-19 06:38:34,098 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 [2022-11-19 06:38:34,099 INFO L413 NwaCegarLoop]: 4570 mSDtfsCounter, 5026 mSDsluCounter, 4571 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5030 SdHoareTripleChecker+Valid, 9141 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:34,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5030 Valid, 9141 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-19 06:38:34,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3520 states. [2022-11-19 06:38:34,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3520 to 3518. [2022-11-19 06:38:34,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3518 states, 2012 states have (on average 1.2808151093439364) internal successors, (2577), 2080 states have internal predecessors, (2577), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-19 06:38:34,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3518 states to 3518 states and 5049 transitions. [2022-11-19 06:38:34,433 INFO L78 Accepts]: Start accepts. Automaton has 3518 states and 5049 transitions. Word has length 64 [2022-11-19 06:38:34,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:34,433 INFO L495 AbstractCegarLoop]: Abstraction has 3518 states and 5049 transitions. [2022-11-19 06:38:34,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-11-19 06:38:34,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3518 states and 5049 transitions. [2022-11-19 06:38:34,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-19 06:38:34,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:34,436 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-19 06:38:34,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 06:38:34,437 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__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 32 more)] === [2022-11-19 06:38:34,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:34,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1823371411, now seen corresponding path program 1 times [2022-11-19 06:38:34,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:34,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726920767] [2022-11-19 06:38:34,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:34,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:35,580 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 06:38:35,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:35,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726920767] [2022-11-19 06:38:35,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726920767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:38:35,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:38:35,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:38:35,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429364984] [2022-11-19 06:38:35,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:35,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:38:35,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:35,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:38:35,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:38:35,584 INFO L87 Difference]: Start difference. First operand 3518 states and 5049 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 06:38:45,892 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 [] [2022-11-19 06:38:46,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:46,012 INFO L93 Difference]: Finished difference Result 6233 states and 9147 transitions. [2022-11-19 06:38:46,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:38:46,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 67 [2022-11-19 06:38:46,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:46,072 INFO L225 Difference]: With dead ends: 6233 [2022-11-19 06:38:46,072 INFO L226 Difference]: Without dead ends: 6231 [2022-11-19 06:38:46,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:38:46,081 INFO L413 NwaCegarLoop]: 6047 mSDtfsCounter, 3959 mSDsluCounter, 16772 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3965 SdHoareTripleChecker+Valid, 22819 SdHoareTripleChecker+Invalid, 2135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:46,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3965 Valid, 22819 Invalid, 2135 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2131 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2022-11-19 06:38:46,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6231 states. [2022-11-19 06:38:46,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6231 to 6054. [2022-11-19 06:38:46,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6054 states, 3567 states have (on average 1.2946453602467058) internal successors, (4618), 3665 states have internal predecessors, (4618), 2048 states have call successors, (2048), 417 states have call predecessors, (2048), 413 states have return successors, (2293), 2024 states have call predecessors, (2293), 2046 states have call successors, (2293) [2022-11-19 06:38:46,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6054 states to 6054 states and 8959 transitions. [2022-11-19 06:38:46,832 INFO L78 Accepts]: Start accepts. Automaton has 6054 states and 8959 transitions. Word has length 67 [2022-11-19 06:38:46,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:46,833 INFO L495 AbstractCegarLoop]: Abstraction has 6054 states and 8959 transitions. [2022-11-19 06:38:46,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 06:38:46,834 INFO L276 IsEmpty]: Start isEmpty. Operand 6054 states and 8959 transitions. [2022-11-19 06:38:46,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-19 06:38:46,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:46,837 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-19 06:38:46,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 06:38:46,837 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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 32 more)] === [2022-11-19 06:38:46,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:46,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1457669262, now seen corresponding path program 1 times [2022-11-19 06:38:46,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:46,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718720904] [2022-11-19 06:38:46,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:46,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:47,912 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 06:38:47,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:47,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718720904] [2022-11-19 06:38:47,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718720904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:38:47,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:38:47,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:38:47,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623573185] [2022-11-19 06:38:47,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:47,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:38:47,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:47,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:38:47,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:38:47,916 INFO L87 Difference]: Start difference. First operand 6054 states and 8959 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 06:38:57,485 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 [] [2022-11-19 06:38:57,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:57,553 INFO L93 Difference]: Finished difference Result 13079 states and 19605 transitions. [2022-11-19 06:38:57,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:38:57,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 67 [2022-11-19 06:38:57,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:57,602 INFO L225 Difference]: With dead ends: 13079 [2022-11-19 06:38:57,602 INFO L226 Difference]: Without dead ends: 7031 [2022-11-19 06:38:57,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:38:57,647 INFO L413 NwaCegarLoop]: 4808 mSDtfsCounter, 379 mSDsluCounter, 13930 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 18738 SdHoareTripleChecker+Invalid, 2172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:57,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 18738 Invalid, 2172 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2171 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-11-19 06:38:57,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7031 states. [2022-11-19 06:38:58,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7031 to 6058. [2022-11-19 06:38:58,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6058 states, 3570 states have (on average 1.2943977591036415) internal successors, (4621), 3668 states have internal predecessors, (4621), 2048 states have call successors, (2048), 417 states have call predecessors, (2048), 414 states have return successors, (2311), 2025 states have call predecessors, (2311), 2046 states have call successors, (2311) [2022-11-19 06:38:58,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6058 states to 6058 states and 8980 transitions. [2022-11-19 06:38:58,364 INFO L78 Accepts]: Start accepts. Automaton has 6058 states and 8980 transitions. Word has length 67 [2022-11-19 06:38:58,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:58,364 INFO L495 AbstractCegarLoop]: Abstraction has 6058 states and 8980 transitions. [2022-11-19 06:38:58,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 06:38:58,365 INFO L276 IsEmpty]: Start isEmpty. Operand 6058 states and 8980 transitions. [2022-11-19 06:38:58,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-19 06:38:58,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:58,366 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] [2022-11-19 06:38:58,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 06:38:58,367 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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 32 more)] === [2022-11-19 06:38:58,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:58,367 INFO L85 PathProgramCache]: Analyzing trace with hash 134460171, now seen corresponding path program 1 times [2022-11-19 06:38:58,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:58,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063499896] [2022-11-19 06:38:58,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:58,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:58,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:58,784 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:38:58,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:58,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063499896] [2022-11-19 06:38:58,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063499896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:38:58,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:38:58,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:38:58,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008901337] [2022-11-19 06:38:58,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:58,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:38:58,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:58,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:38:58,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:38:58,789 INFO L87 Difference]: Start difference. First operand 6058 states and 8980 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-11-19 06:39:05,302 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 [] [2022-11-19 06:39:05,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:39:05,352 INFO L93 Difference]: Finished difference Result 6060 states and 8983 transitions. [2022-11-19 06:39:05,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:39:05,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 69 [2022-11-19 06:39:05,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:39:05,388 INFO L225 Difference]: With dead ends: 6060 [2022-11-19 06:39:05,389 INFO L226 Difference]: Without dead ends: 6058 [2022-11-19 06:39:05,394 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 [2022-11-19 06:39:05,395 INFO L413 NwaCegarLoop]: 4568 mSDtfsCounter, 5023 mSDsluCounter, 4569 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5027 SdHoareTripleChecker+Valid, 9137 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:39:05,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5027 Valid, 9137 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-19 06:39:05,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6058 states. [2022-11-19 06:39:06,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6058 to 6058. [2022-11-19 06:39:06,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6058 states, 3570 states have (on average 1.2941176470588236) internal successors, (4620), 3668 states have internal predecessors, (4620), 2048 states have call successors, (2048), 417 states have call predecessors, (2048), 415 states have return successors, (2313), 2025 states have call predecessors, (2313), 2046 states have call successors, (2313) [2022-11-19 06:39:06,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6058 states to 6058 states and 8981 transitions. [2022-11-19 06:39:06,202 INFO L78 Accepts]: Start accepts. Automaton has 6058 states and 8981 transitions. Word has length 69 [2022-11-19 06:39:06,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:39:06,203 INFO L495 AbstractCegarLoop]: Abstraction has 6058 states and 8981 transitions. [2022-11-19 06:39:06,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-11-19 06:39:06,203 INFO L276 IsEmpty]: Start isEmpty. Operand 6058 states and 8981 transitions. [2022-11-19 06:39:06,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 06:39:06,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:39:06,211 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] [2022-11-19 06:39:06,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 06:39:06,212 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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 32 more)] === [2022-11-19 06:39:06,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:39:06,212 INFO L85 PathProgramCache]: Analyzing trace with hash -886264016, now seen corresponding path program 1 times [2022-11-19 06:39:06,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:39:06,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065124630] [2022-11-19 06:39:06,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:39:06,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:39:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:39:06,629 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:39:06,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:39:06,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065124630] [2022-11-19 06:39:06,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065124630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:39:06,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:39:06,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:39:06,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273087920] [2022-11-19 06:39:06,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:39:06,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:39:06,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:39:06,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:39:06,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:39:06,632 INFO L87 Difference]: Start difference. First operand 6058 states and 8981 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 06:39:13,500 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 [] [2022-11-19 06:39:13,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:39:13,547 INFO L93 Difference]: Finished difference Result 6058 states and 8981 transitions. [2022-11-19 06:39:13,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:39:13,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 74 [2022-11-19 06:39:13,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:39:13,572 INFO L225 Difference]: With dead ends: 6058 [2022-11-19 06:39:13,573 INFO L226 Difference]: Without dead ends: 6056 [2022-11-19 06:39:13,576 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 [2022-11-19 06:39:13,576 INFO L413 NwaCegarLoop]: 4566 mSDtfsCounter, 5020 mSDsluCounter, 4567 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5024 SdHoareTripleChecker+Valid, 9133 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:39:13,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5024 Valid, 9133 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-11-19 06:39:13,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-11-19 06:39:14,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6056. [2022-11-19 06:39:14,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 3569 states have (on average 1.2939198655085458) internal successors, (4618), 3666 states have internal predecessors, (4618), 2048 states have call successors, (2048), 417 states have call predecessors, (2048), 415 states have return successors, (2313), 2025 states have call predecessors, (2313), 2046 states have call successors, (2313) [2022-11-19 06:39:14,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 8979 transitions. [2022-11-19 06:39:14,218 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 8979 transitions. Word has length 74 [2022-11-19 06:39:14,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:39:14,219 INFO L495 AbstractCegarLoop]: Abstraction has 6056 states and 8979 transitions. [2022-11-19 06:39:14,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 06:39:14,219 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 8979 transitions. [2022-11-19 06:39:14,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 06:39:14,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:39:14,221 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] [2022-11-19 06:39:14,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 06:39:14,222 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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 32 more)] === [2022-11-19 06:39:14,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:39:14,222 INFO L85 PathProgramCache]: Analyzing trace with hash -771575762, now seen corresponding path program 1 times [2022-11-19 06:39:14,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:39:14,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299084537] [2022-11-19 06:39:14,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:39:14,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:39:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:39:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:39:14,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:39:14,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299084537] [2022-11-19 06:39:14,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299084537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:39:14,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:39:14,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:39:14,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8896859] [2022-11-19 06:39:14,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:39:14,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:39:14,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:39:14,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:39:14,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:39:14,604 INFO L87 Difference]: Start difference. First operand 6056 states and 8979 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 06:39:20,653 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 [] [2022-11-19 06:39:20,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:39:20,701 INFO L93 Difference]: Finished difference Result 6056 states and 8979 transitions. [2022-11-19 06:39:20,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:39:20,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 79 [2022-11-19 06:39:20,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:39:20,733 INFO L225 Difference]: With dead ends: 6056 [2022-11-19 06:39:20,733 INFO L226 Difference]: Without dead ends: 6054 [2022-11-19 06:39:20,737 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 [2022-11-19 06:39:20,738 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5017 mSDsluCounter, 4565 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5021 SdHoareTripleChecker+Valid, 9129 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:39:20,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5021 Valid, 9129 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-19 06:39:20,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6054 states. [2022-11-19 06:39:21,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6054 to 6054. [2022-11-19 06:39:21,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6054 states, 3568 states have (on average 1.2937219730941705) internal successors, (4616), 3664 states have internal predecessors, (4616), 2048 states have call successors, (2048), 417 states have call predecessors, (2048), 415 states have return successors, (2313), 2025 states have call predecessors, (2313), 2046 states have call successors, (2313) [2022-11-19 06:39:21,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6054 states to 6054 states and 8977 transitions. [2022-11-19 06:39:21,473 INFO L78 Accepts]: Start accepts. Automaton has 6054 states and 8977 transitions. Word has length 79 [2022-11-19 06:39:21,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:39:21,474 INFO L495 AbstractCegarLoop]: Abstraction has 6054 states and 8977 transitions. [2022-11-19 06:39:21,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 06:39:21,474 INFO L276 IsEmpty]: Start isEmpty. Operand 6054 states and 8977 transitions. [2022-11-19 06:39:21,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 06:39:21,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:39:21,476 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2022-11-19 06:39:21,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 06:39:21,477 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 32 more)] === [2022-11-19 06:39:21,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:39:21,477 INFO L85 PathProgramCache]: Analyzing trace with hash 852219909, now seen corresponding path program 1 times [2022-11-19 06:39:21,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:39:21,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417979643] [2022-11-19 06:39:21,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:39:21,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:39:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:39:22,460 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-19 06:39:22,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:39:22,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417979643] [2022-11-19 06:39:22,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417979643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:39:22,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:39:22,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:39:22,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333914154] [2022-11-19 06:39:22,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:39:22,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:39:22,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:39:22,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:39:22,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:39:22,464 INFO L87 Difference]: Start difference. First operand 6054 states and 8977 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 06:39:36,884 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 [] [2022-11-19 06:39:37,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:39:37,153 INFO L93 Difference]: Finished difference Result 6054 states and 8977 transitions. [2022-11-19 06:39:37,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:39:37,154 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 80 [2022-11-19 06:39:37,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:39:37,184 INFO L225 Difference]: With dead ends: 6054 [2022-11-19 06:39:37,184 INFO L226 Difference]: Without dead ends: 6052 [2022-11-19 06:39:37,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 06:39:37,190 INFO L413 NwaCegarLoop]: 4563 mSDtfsCounter, 5016 mSDsluCounter, 11210 mSDsCounter, 0 mSdLazyCounter, 4376 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5023 SdHoareTripleChecker+Valid, 15773 SdHoareTripleChecker+Invalid, 4377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4376 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:39:37,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5023 Valid, 15773 Invalid, 4377 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4376 Invalid, 1 Unknown, 0 Unchecked, 13.7s Time] [2022-11-19 06:39:37,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6052 states. [2022-11-19 06:39:37,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6052 to 6052. [2022-11-19 06:39:37,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6052 states, 3567 states have (on average 1.2932436220913934) internal successors, (4613), 3662 states have internal predecessors, (4613), 2048 states have call successors, (2048), 417 states have call predecessors, (2048), 415 states have return successors, (2313), 2025 states have call predecessors, (2313), 2046 states have call successors, (2313) [2022-11-19 06:39:37,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6052 states to 6052 states and 8974 transitions. [2022-11-19 06:39:37,976 INFO L78 Accepts]: Start accepts. Automaton has 6052 states and 8974 transitions. Word has length 80 [2022-11-19 06:39:37,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:39:37,977 INFO L495 AbstractCegarLoop]: Abstraction has 6052 states and 8974 transitions. [2022-11-19 06:39:37,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 06:39:37,977 INFO L276 IsEmpty]: Start isEmpty. Operand 6052 states and 8974 transitions. [2022-11-19 06:39:37,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 06:39:37,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:39:37,979 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2022-11-19 06:39:37,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 06:39:37,979 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_mutex__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 32 more)] === [2022-11-19 06:39:37,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:39:37,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1297130528, now seen corresponding path program 1 times [2022-11-19 06:39:37,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:39:37,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421257216] [2022-11-19 06:39:37,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:39:37,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:39:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:39:38,766 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-19 06:39:38,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:39:38,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421257216] [2022-11-19 06:39:38,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421257216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:39:38,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:39:38,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:39:38,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421862068] [2022-11-19 06:39:38,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:39:38,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:39:38,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:39:38,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:39:38,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:39:38,769 INFO L87 Difference]: Start difference. First operand 6052 states and 8974 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 06:39:49,126 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 [] [2022-11-19 06:39:49,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:39:49,218 INFO L93 Difference]: Finished difference Result 6703 states and 9782 transitions. [2022-11-19 06:39:49,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:39:49,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 83 [2022-11-19 06:39:49,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:39:49,251 INFO L225 Difference]: With dead ends: 6703 [2022-11-19 06:39:49,252 INFO L226 Difference]: Without dead ends: 6701 [2022-11-19 06:39:49,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:39:49,257 INFO L413 NwaCegarLoop]: 5011 mSDtfsCounter, 4918 mSDsluCounter, 10723 mSDsCounter, 0 mSdLazyCounter, 1670 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4925 SdHoareTripleChecker+Valid, 15734 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1670 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:39:49,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4925 Valid, 15734 Invalid, 1674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1670 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2022-11-19 06:39:49,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6701 states. [2022-11-19 06:39:49,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6701 to 6691. [2022-11-19 06:39:49,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6691 states, 3911 states have (on average 1.28023523395551) internal successors, (5007), 4012 states have internal predecessors, (5007), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-19 06:39:49,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 9774 transitions. [2022-11-19 06:39:49,976 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 9774 transitions. Word has length 83 [2022-11-19 06:39:49,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:39:49,977 INFO L495 AbstractCegarLoop]: Abstraction has 6691 states and 9774 transitions. [2022-11-19 06:39:49,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 06:39:49,977 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 9774 transitions. [2022-11-19 06:39:49,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-19 06:39:49,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:39:49,980 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] [2022-11-19 06:39:49,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 06:39:49,980 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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 32 more)] === [2022-11-19 06:39:49,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:39:49,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1148094156, now seen corresponding path program 1 times [2022-11-19 06:39:49,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:39:49,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531605612] [2022-11-19 06:39:49,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:39:49,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:39:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:39:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:39:50,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:39:50,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531605612] [2022-11-19 06:39:50,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531605612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:39:50,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:39:50,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:39:50,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822644228] [2022-11-19 06:39:50,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:39:50,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:39:50,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:39:50,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:39:50,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:39:50,459 INFO L87 Difference]: Start difference. First operand 6691 states and 9774 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 06:39:57,601 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 [] [2022-11-19 06:39:57,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:39:57,669 INFO L93 Difference]: Finished difference Result 6691 states and 9774 transitions. [2022-11-19 06:39:57,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:39:57,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 84 [2022-11-19 06:39:57,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:39:57,702 INFO L225 Difference]: With dead ends: 6691 [2022-11-19 06:39:57,703 INFO L226 Difference]: Without dead ends: 6689 [2022-11-19 06:39:57,708 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 [2022-11-19 06:39:57,709 INFO L413 NwaCegarLoop]: 4560 mSDtfsCounter, 5017 mSDsluCounter, 4556 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5019 SdHoareTripleChecker+Valid, 9116 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:39:57,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5019 Valid, 9116 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 954 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-11-19 06:39:57,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6689 states. [2022-11-19 06:39:58,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6689 to 6689. [2022-11-19 06:39:58,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6689 states, 3910 states have (on average 1.2800511508951407) internal successors, (5005), 4010 states have internal predecessors, (5005), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-19 06:39:58,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6689 states to 6689 states and 9772 transitions. [2022-11-19 06:39:58,493 INFO L78 Accepts]: Start accepts. Automaton has 6689 states and 9772 transitions. Word has length 84 [2022-11-19 06:39:58,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:39:58,493 INFO L495 AbstractCegarLoop]: Abstraction has 6689 states and 9772 transitions. [2022-11-19 06:39:58,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 06:39:58,493 INFO L276 IsEmpty]: Start isEmpty. Operand 6689 states and 9772 transitions. [2022-11-19 06:39:58,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 06:39:58,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:39:58,495 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2022-11-19 06:39:58,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 06:39:58,496 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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 32 more)] === [2022-11-19 06:39:58,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:39:58,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1124018534, now seen corresponding path program 1 times [2022-11-19 06:39:58,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:39:58,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538119705] [2022-11-19 06:39:58,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:39:58,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:39:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:39:58,796 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-19 06:39:58,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:39:58,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538119705] [2022-11-19 06:39:58,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538119705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:39:58,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:39:58,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:39:58,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849687021] [2022-11-19 06:39:58,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:39:58,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:39:58,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:39:58,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:39:58,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:39:58,799 INFO L87 Difference]: Start difference. First operand 6689 states and 9772 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2022-11-19 06:40:03,943 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 [] [2022-11-19 06:40:04,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:40:04,002 INFO L93 Difference]: Finished difference Result 13351 states and 19984 transitions. [2022-11-19 06:40:04,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:40:04,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 83 [2022-11-19 06:40:04,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:40:04,035 INFO L225 Difference]: With dead ends: 13351 [2022-11-19 06:40:04,036 INFO L226 Difference]: Without dead ends: 6681 [2022-11-19 06:40:04,074 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 [2022-11-19 06:40:04,075 INFO L413 NwaCegarLoop]: 4555 mSDtfsCounter, 5001 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5003 SdHoareTripleChecker+Valid, 4556 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:40:04,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5003 Valid, 4556 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-19 06:40:04,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6681 states. [2022-11-19 06:40:04,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6681 to 6681. [2022-11-19 06:40:04,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6681 states, 3903 states have (on average 1.2790161414296695) internal successors, (4992), 4002 states have internal predecessors, (4992), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-19 06:40:04,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6681 states to 6681 states and 9759 transitions. [2022-11-19 06:40:04,866 INFO L78 Accepts]: Start accepts. Automaton has 6681 states and 9759 transitions. Word has length 83 [2022-11-19 06:40:04,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:40:04,867 INFO L495 AbstractCegarLoop]: Abstraction has 6681 states and 9759 transitions. [2022-11-19 06:40:04,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2022-11-19 06:40:04,867 INFO L276 IsEmpty]: Start isEmpty. Operand 6681 states and 9759 transitions. [2022-11-19 06:40:04,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-19 06:40:04,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:40:04,868 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] [2022-11-19 06:40:04,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-19 06:40:04,869 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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 32 more)] === [2022-11-19 06:40:04,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:40:04,869 INFO L85 PathProgramCache]: Analyzing trace with hash 488402295, now seen corresponding path program 1 times [2022-11-19 06:40:04,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:40:04,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527527446] [2022-11-19 06:40:04,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:40:04,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:40:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:40:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:40:05,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:40:05,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527527446] [2022-11-19 06:40:05,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527527446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:40:05,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:40:05,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:40:05,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902427870] [2022-11-19 06:40:05,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:40:05,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:40:05,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:40:05,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:40:05,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:40:05,238 INFO L87 Difference]: Start difference. First operand 6681 states and 9759 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-11-19 06:40:11,257 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 [] [2022-11-19 06:40:11,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:40:11,328 INFO L93 Difference]: Finished difference Result 6681 states and 9759 transitions. [2022-11-19 06:40:11,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:40:11,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 86 [2022-11-19 06:40:11,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:40:11,359 INFO L225 Difference]: With dead ends: 6681 [2022-11-19 06:40:11,360 INFO L226 Difference]: Without dead ends: 6679 [2022-11-19 06:40:11,365 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 [2022-11-19 06:40:11,366 INFO L413 NwaCegarLoop]: 4553 mSDtfsCounter, 5003 mSDsluCounter, 4554 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5007 SdHoareTripleChecker+Valid, 9107 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:40:11,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5007 Valid, 9107 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-19 06:40:11,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2022-11-19 06:40:12,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 6679. [2022-11-19 06:40:12,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6679 states, 3902 states have (on average 1.2788313685289594) internal successors, (4990), 4000 states have internal predecessors, (4990), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-19 06:40:12,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6679 states to 6679 states and 9757 transitions. [2022-11-19 06:40:12,217 INFO L78 Accepts]: Start accepts. Automaton has 6679 states and 9757 transitions. Word has length 86 [2022-11-19 06:40:12,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:40:12,217 INFO L495 AbstractCegarLoop]: Abstraction has 6679 states and 9757 transitions. [2022-11-19 06:40:12,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-11-19 06:40:12,218 INFO L276 IsEmpty]: Start isEmpty. Operand 6679 states and 9757 transitions. [2022-11-19 06:40:12,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-19 06:40:12,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:40:12,219 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] [2022-11-19 06:40:12,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-19 06:40:12,220 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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 32 more)] === [2022-11-19 06:40:12,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:40:12,220 INFO L85 PathProgramCache]: Analyzing trace with hash -454305323, now seen corresponding path program 1 times [2022-11-19 06:40:12,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:40:12,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723025923] [2022-11-19 06:40:12,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:40:12,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:40:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:40:12,598 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:40:12,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:40:12,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723025923] [2022-11-19 06:40:12,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723025923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:40:12,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:40:12,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:40:12,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621446704] [2022-11-19 06:40:12,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:40:12,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:40:12,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:40:12,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:40:12,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:40:12,602 INFO L87 Difference]: Start difference. First operand 6679 states and 9757 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-11-19 06:40:18,813 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 [] [2022-11-19 06:40:18,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:40:18,891 INFO L93 Difference]: Finished difference Result 6679 states and 9757 transitions. [2022-11-19 06:40:18,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:40:18,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 91 [2022-11-19 06:40:18,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:40:18,922 INFO L225 Difference]: With dead ends: 6679 [2022-11-19 06:40:18,922 INFO L226 Difference]: Without dead ends: 6677 [2022-11-19 06:40:18,926 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 [2022-11-19 06:40:18,927 INFO L413 NwaCegarLoop]: 4551 mSDtfsCounter, 5002 mSDsluCounter, 4552 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5006 SdHoareTripleChecker+Valid, 9103 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:40:18,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5006 Valid, 9103 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-19 06:40:18,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6677 states. [2022-11-19 06:40:19,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6677 to 6677. [2022-11-19 06:40:19,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6677 states, 3901 states have (on average 1.2786465008972059) internal successors, (4988), 3998 states have internal predecessors, (4988), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-19 06:40:19,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 9755 transitions. [2022-11-19 06:40:19,823 INFO L78 Accepts]: Start accepts. Automaton has 6677 states and 9755 transitions. Word has length 91 [2022-11-19 06:40:19,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:40:19,823 INFO L495 AbstractCegarLoop]: Abstraction has 6677 states and 9755 transitions. [2022-11-19 06:40:19,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-11-19 06:40:19,823 INFO L276 IsEmpty]: Start isEmpty. Operand 6677 states and 9755 transitions. [2022-11-19 06:40:19,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-19 06:40:19,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:40:19,825 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] [2022-11-19 06:40:19,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-19 06:40:19,826 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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 32 more)] === [2022-11-19 06:40:19,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:40:19,826 INFO L85 PathProgramCache]: Analyzing trace with hash 838034385, now seen corresponding path program 1 times [2022-11-19 06:40:19,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:40:19,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542603471] [2022-11-19 06:40:19,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:40:19,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:40:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:40:20,235 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:40:20,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:40:20,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542603471] [2022-11-19 06:40:20,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542603471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:40:20,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:40:20,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:40:20,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127554988] [2022-11-19 06:40:20,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:40:20,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:40:20,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:40:20,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:40:20,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:40:20,238 INFO L87 Difference]: Start difference. First operand 6677 states and 9755 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2022-11-19 06:40:26,047 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 [] [2022-11-19 06:40:26,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:40:26,114 INFO L93 Difference]: Finished difference Result 6677 states and 9755 transitions. [2022-11-19 06:40:26,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:40:26,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 96 [2022-11-19 06:40:26,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:40:26,133 INFO L225 Difference]: With dead ends: 6677 [2022-11-19 06:40:26,134 INFO L226 Difference]: Without dead ends: 6675 [2022-11-19 06:40:26,137 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 [2022-11-19 06:40:26,137 INFO L413 NwaCegarLoop]: 4548 mSDtfsCounter, 4999 mSDsluCounter, 4549 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5003 SdHoareTripleChecker+Valid, 9097 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:40:26,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5003 Valid, 9097 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 955 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-19 06:40:26,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6675 states. [2022-11-19 06:40:27,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6675 to 6675. [2022-11-19 06:40:27,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6675 states, 3900 states have (on average 1.2784615384615385) internal successors, (4986), 3996 states have internal predecessors, (4986), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-19 06:40:27,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6675 states to 6675 states and 9753 transitions. [2022-11-19 06:40:27,058 INFO L78 Accepts]: Start accepts. Automaton has 6675 states and 9753 transitions. Word has length 96 [2022-11-19 06:40:27,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:40:27,059 INFO L495 AbstractCegarLoop]: Abstraction has 6675 states and 9753 transitions. [2022-11-19 06:40:27,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2022-11-19 06:40:27,059 INFO L276 IsEmpty]: Start isEmpty. Operand 6675 states and 9753 transitions. [2022-11-19 06:40:27,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-19 06:40:27,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:40:27,061 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2022-11-19 06:40:27,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-19 06:40:27,062 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_mutex__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 32 more)] === [2022-11-19 06:40:27,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:40:27,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1733323409, now seen corresponding path program 1 times [2022-11-19 06:40:27,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:40:27,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620816518] [2022-11-19 06:40:27,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:40:27,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:40:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:40:27,665 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-19 06:40:27,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:40:27,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620816518] [2022-11-19 06:40:27,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620816518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:40:27,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:40:27,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:40:27,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922026530] [2022-11-19 06:40:27,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:40:27,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:40:27,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:40:27,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:40:27,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:40:27,669 INFO L87 Difference]: Start difference. First operand 6675 states and 9753 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 06:40:39,055 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 [] [2022-11-19 06:40:39,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:40:39,200 INFO L93 Difference]: Finished difference Result 6845 states and 9933 transitions. [2022-11-19 06:40:39,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:40:39,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 102 [2022-11-19 06:40:39,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:40:39,222 INFO L225 Difference]: With dead ends: 6845 [2022-11-19 06:40:39,222 INFO L226 Difference]: Without dead ends: 6843 [2022-11-19 06:40:39,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:40:39,226 INFO L413 NwaCegarLoop]: 7569 mSDtfsCounter, 5130 mSDsluCounter, 18689 mSDsCounter, 0 mSdLazyCounter, 2830 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5133 SdHoareTripleChecker+Valid, 26258 SdHoareTripleChecker+Invalid, 2831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2830 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:40:39,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5133 Valid, 26258 Invalid, 2831 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2830 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-19 06:40:39,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6843 states. [2022-11-19 06:40:40,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6843 to 6683. [2022-11-19 06:40:40,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6683 states, 3906 states have (on average 1.2780337941628264) internal successors, (4992), 4002 states have internal predecessors, (4992), 2248 states have call successors, (2248), 516 states have call predecessors, (2248), 512 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-19 06:40:40,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6683 states to 6683 states and 9759 transitions. [2022-11-19 06:40:40,086 INFO L78 Accepts]: Start accepts. Automaton has 6683 states and 9759 transitions. Word has length 102 [2022-11-19 06:40:40,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:40:40,087 INFO L495 AbstractCegarLoop]: Abstraction has 6683 states and 9759 transitions. [2022-11-19 06:40:40,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 06:40:40,087 INFO L276 IsEmpty]: Start isEmpty. Operand 6683 states and 9759 transitions. [2022-11-19 06:40:40,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-19 06:40:40,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:40:40,134 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2022-11-19 06:40:40,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-19 06:40:40,134 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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 32 more)] === [2022-11-19 06:40:40,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:40:40,135 INFO L85 PathProgramCache]: Analyzing trace with hash 14503757, now seen corresponding path program 1 times [2022-11-19 06:40:40,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:40:40,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342113421] [2022-11-19 06:40:40,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:40:40,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:40:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:40:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-19 06:40:40,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:40:40,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342113421] [2022-11-19 06:40:40,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342113421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:40:40,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:40:40,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:40:40,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815123592] [2022-11-19 06:40:40,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:40:40,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:40:40,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:40:40,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:40:40,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:40:40,878 INFO L87 Difference]: Start difference. First operand 6683 states and 9759 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 06:40:48,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:40:50,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:40:52,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:40:53,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:40:53,044 INFO L93 Difference]: Finished difference Result 6705 states and 9775 transitions. [2022-11-19 06:40:53,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:40:53,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 104 [2022-11-19 06:40:53,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:40:53,060 INFO L225 Difference]: With dead ends: 6705 [2022-11-19 06:40:53,061 INFO L226 Difference]: Without dead ends: 6703 [2022-11-19 06:40:53,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:40:53,063 INFO L413 NwaCegarLoop]: 4553 mSDtfsCounter, 4947 mSDsluCounter, 9155 mSDsCounter, 0 mSdLazyCounter, 1445 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 13708 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1445 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:40:53,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4949 Valid, 13708 Invalid, 1449 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1445 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2022-11-19 06:40:53,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6703 states. [2022-11-19 06:40:53,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6703 to 6701. [2022-11-19 06:40:53,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6701 states, 3918 states have (on average 1.2771822358346094) internal successors, (5004), 4014 states have internal predecessors, (5004), 2248 states have call successors, (2248), 522 states have call predecessors, (2248), 518 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-19 06:40:53,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6701 states to 6701 states and 9771 transitions. [2022-11-19 06:40:53,887 INFO L78 Accepts]: Start accepts. Automaton has 6701 states and 9771 transitions. Word has length 104 [2022-11-19 06:40:53,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:40:53,887 INFO L495 AbstractCegarLoop]: Abstraction has 6701 states and 9771 transitions. [2022-11-19 06:40:53,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 06:40:53,888 INFO L276 IsEmpty]: Start isEmpty. Operand 6701 states and 9771 transitions. [2022-11-19 06:40:53,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-19 06:40:53,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:40:53,889 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] [2022-11-19 06:40:53,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-19 06:40:53,890 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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 32 more)] === [2022-11-19 06:40:53,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:40:53,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1830208444, now seen corresponding path program 1 times [2022-11-19 06:40:53,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:40:53,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55917427] [2022-11-19 06:40:53,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:40:53,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:40:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:40:54,283 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:40:54,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:40:54,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55917427] [2022-11-19 06:40:54,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55917427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:40:54,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:40:54,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:40:54,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151911630] [2022-11-19 06:40:54,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:40:54,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:40:54,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:40:54,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:40:54,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:40:54,290 INFO L87 Difference]: Start difference. First operand 6701 states and 9771 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-11-19 06:41:00,455 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 [] [2022-11-19 06:41:00,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:41:00,541 INFO L93 Difference]: Finished difference Result 6701 states and 9771 transitions. [2022-11-19 06:41:00,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:41:00,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 101 [2022-11-19 06:41:00,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:41:00,565 INFO L225 Difference]: With dead ends: 6701 [2022-11-19 06:41:00,565 INFO L226 Difference]: Without dead ends: 6699 [2022-11-19 06:41:00,570 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 [2022-11-19 06:41:00,570 INFO L413 NwaCegarLoop]: 4547 mSDtfsCounter, 4996 mSDsluCounter, 4548 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5000 SdHoareTripleChecker+Valid, 9095 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:41:00,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5000 Valid, 9095 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-19 06:41:00,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6699 states. [2022-11-19 06:41:01,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6699 to 6699. [2022-11-19 06:41:01,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6699 states, 3917 states have (on average 1.2769977023232066) internal successors, (5002), 4012 states have internal predecessors, (5002), 2248 states have call successors, (2248), 522 states have call predecessors, (2248), 518 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-19 06:41:01,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 9769 transitions. [2022-11-19 06:41:01,498 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 9769 transitions. Word has length 101 [2022-11-19 06:41:01,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:41:01,498 INFO L495 AbstractCegarLoop]: Abstraction has 6699 states and 9769 transitions. [2022-11-19 06:41:01,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-11-19 06:41:01,499 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 9769 transitions. [2022-11-19 06:41:01,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-19 06:41:01,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:41:01,501 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2022-11-19 06:41:01,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-19 06:41:01,501 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_mutex__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 32 more)] === [2022-11-19 06:41:01,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:41:01,502 INFO L85 PathProgramCache]: Analyzing trace with hash -268806962, now seen corresponding path program 1 times [2022-11-19 06:41:01,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:41:01,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100284836] [2022-11-19 06:41:01,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:41:01,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:41:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:41:02,031 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-19 06:41:02,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:41:02,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100284836] [2022-11-19 06:41:02,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100284836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:41:02,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:41:02,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:41:02,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018175512] [2022-11-19 06:41:02,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:41:02,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:41:02,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:41:02,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:41:02,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:41:02,035 INFO L87 Difference]: Start difference. First operand 6699 states and 9769 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 06:41:14,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:41:16,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:41:18,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:41:20,171 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 [] [2022-11-19 06:41:20,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:41:20,280 INFO L93 Difference]: Finished difference Result 6711 states and 9777 transitions. [2022-11-19 06:41:20,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:41:20,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 106 [2022-11-19 06:41:20,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:41:20,304 INFO L225 Difference]: With dead ends: 6711 [2022-11-19 06:41:20,304 INFO L226 Difference]: Without dead ends: 6709 [2022-11-19 06:41:20,309 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 [2022-11-19 06:41:20,309 INFO L413 NwaCegarLoop]: 5110 mSDtfsCounter, 792 mSDsluCounter, 14671 mSDsCounter, 0 mSdLazyCounter, 2152 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 19781 SdHoareTripleChecker+Invalid, 2155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2152 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:41:20,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 19781 Invalid, 2155 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2152 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2022-11-19 06:41:20,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6709 states. [2022-11-19 06:41:21,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6709 to 6703. [2022-11-19 06:41:21,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6703 states, 3920 states have (on average 1.276530612244898) internal successors, (5004), 4015 states have internal predecessors, (5004), 2248 states have call successors, (2248), 523 states have call predecessors, (2248), 519 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-19 06:41:21,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6703 states to 6703 states and 9771 transitions. [2022-11-19 06:41:21,070 INFO L78 Accepts]: Start accepts. Automaton has 6703 states and 9771 transitions. Word has length 106 [2022-11-19 06:41:21,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:41:21,070 INFO L495 AbstractCegarLoop]: Abstraction has 6703 states and 9771 transitions. [2022-11-19 06:41:21,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 06:41:21,070 INFO L276 IsEmpty]: Start isEmpty. Operand 6703 states and 9771 transitions. [2022-11-19 06:41:21,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-19 06:41:21,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:41:21,073 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] [2022-11-19 06:41:21,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-19 06:41:21,074 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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 32 more)] === [2022-11-19 06:41:21,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:41:21,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1691624879, now seen corresponding path program 1 times [2022-11-19 06:41:21,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:41:21,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649115092] [2022-11-19 06:41:21,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:41:21,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:41:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:41:21,440 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:41:21,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:41:21,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649115092] [2022-11-19 06:41:21,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649115092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:41:21,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:41:21,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:41:21,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686571399] [2022-11-19 06:41:21,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:41:21,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:41:21,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:41:21,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:41:21,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:41:21,443 INFO L87 Difference]: Start difference. First operand 6703 states and 9771 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-11-19 06:41:27,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:41:29,365 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 [] [2022-11-19 06:41:29,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:41:29,445 INFO L93 Difference]: Finished difference Result 6703 states and 9771 transitions. [2022-11-19 06:41:29,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:41:29,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 106 [2022-11-19 06:41:29,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:41:29,469 INFO L225 Difference]: With dead ends: 6703 [2022-11-19 06:41:29,469 INFO L226 Difference]: Without dead ends: 6701 [2022-11-19 06:41:29,473 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 [2022-11-19 06:41:29,474 INFO L413 NwaCegarLoop]: 4545 mSDtfsCounter, 4994 mSDsluCounter, 4545 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4996 SdHoareTripleChecker+Valid, 9090 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:41:29,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4996 Valid, 9090 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 954 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-19 06:41:29,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6701 states. [2022-11-19 06:41:30,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6701 to 6701. [2022-11-19 06:41:30,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6701 states, 3919 states have (on average 1.2763460066343455) internal successors, (5002), 4013 states have internal predecessors, (5002), 2248 states have call successors, (2248), 523 states have call predecessors, (2248), 519 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-19 06:41:30,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6701 states to 6701 states and 9769 transitions. [2022-11-19 06:41:30,327 INFO L78 Accepts]: Start accepts. Automaton has 6701 states and 9769 transitions. Word has length 106 [2022-11-19 06:41:30,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:41:30,327 INFO L495 AbstractCegarLoop]: Abstraction has 6701 states and 9769 transitions. [2022-11-19 06:41:30,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-11-19 06:41:30,328 INFO L276 IsEmpty]: Start isEmpty. Operand 6701 states and 9769 transitions. [2022-11-19 06:41:30,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-19 06:41:30,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:41:30,331 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2022-11-19 06:41:30,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-19 06:41:30,331 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_net_sock__double_releaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:41:30,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:41:30,332 INFO L85 PathProgramCache]: Analyzing trace with hash -300132547, now seen corresponding path program 1 times [2022-11-19 06:41:30,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:41:30,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554916273] [2022-11-19 06:41:30,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:41:30,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:41:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:41:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-19 06:41:31,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:41:31,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554916273] [2022-11-19 06:41:31,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554916273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:41:31,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:41:31,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 06:41:31,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390372259] [2022-11-19 06:41:31,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:41:31,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 06:41:31,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:41:31,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 06:41:31,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:41:31,352 INFO L87 Difference]: Start difference. First operand 6701 states and 9769 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 06:42:11,218 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 [] [2022-11-19 06:42:13,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:14,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:42:14,689 INFO L93 Difference]: Finished difference Result 13279 states and 19383 transitions. [2022-11-19 06:42:14,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 06:42:14,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 111 [2022-11-19 06:42:14,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:42:14,742 INFO L225 Difference]: With dead ends: 13279 [2022-11-19 06:42:14,742 INFO L226 Difference]: Without dead ends: 13277 [2022-11-19 06:42:14,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-19 06:42:14,749 INFO L413 NwaCegarLoop]: 4789 mSDtfsCounter, 8003 mSDsluCounter, 10356 mSDsCounter, 0 mSdLazyCounter, 15505 mSolverCounterSat, 302 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8965 SdHoareTripleChecker+Valid, 15145 SdHoareTripleChecker+Invalid, 15808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 15505 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:42:14,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8965 Valid, 15145 Invalid, 15808 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [302 Valid, 15505 Invalid, 1 Unknown, 0 Unchecked, 40.2s Time] [2022-11-19 06:42:14,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13277 states. [2022-11-19 06:42:16,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13277 to 13123. [2022-11-19 06:42:16,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13123 states, 7692 states have (on average 1.279511180447218) internal successors, (9842), 7867 states have internal predecessors, (9842), 4415 states have call successors, (4415), 1014 states have call predecessors, (4415), 1001 states have return successors, (4941), 4354 states have call predecessors, (4941), 4413 states have call successors, (4941) [2022-11-19 06:42:16,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13123 states to 13123 states and 19198 transitions. [2022-11-19 06:42:16,383 INFO L78 Accepts]: Start accepts. Automaton has 13123 states and 19198 transitions. Word has length 111 [2022-11-19 06:42:16,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:42:16,383 INFO L495 AbstractCegarLoop]: Abstraction has 13123 states and 19198 transitions. [2022-11-19 06:42:16,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 06:42:16,383 INFO L276 IsEmpty]: Start isEmpty. Operand 13123 states and 19198 transitions. [2022-11-19 06:42:16,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-19 06:42:16,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:42:16,387 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] [2022-11-19 06:42:16,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-19 06:42:16,388 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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 32 more)] === [2022-11-19 06:42:16,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:42:16,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1092472440, now seen corresponding path program 1 times [2022-11-19 06:42:16,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:42:16,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585461408] [2022-11-19 06:42:16,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:42:16,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:42:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:42:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:42:16,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:42:16,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585461408] [2022-11-19 06:42:16,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585461408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:42:16,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:42:16,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:42:16,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049154083] [2022-11-19 06:42:16,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:42:16,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:42:16,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:42:16,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:42:16,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:42:16,756 INFO L87 Difference]: Start difference. First operand 13123 states and 19198 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-11-19 06:42:24,185 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 [] [2022-11-19 06:42:24,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:42:24,342 INFO L93 Difference]: Finished difference Result 13123 states and 19198 transitions. [2022-11-19 06:42:24,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:42:24,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 111 [2022-11-19 06:42:24,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:42:24,388 INFO L225 Difference]: With dead ends: 13123 [2022-11-19 06:42:24,388 INFO L226 Difference]: Without dead ends: 13121 [2022-11-19 06:42:24,393 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 [2022-11-19 06:42:24,393 INFO L413 NwaCegarLoop]: 4543 mSDtfsCounter, 4990 mSDsluCounter, 4544 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4994 SdHoareTripleChecker+Valid, 9087 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:42:24,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4994 Valid, 9087 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-19 06:42:24,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13121 states. [2022-11-19 06:42:25,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13121 to 13121. [2022-11-19 06:42:25,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13121 states, 7691 states have (on average 1.2794175009751658) internal successors, (9840), 7865 states have internal predecessors, (9840), 4415 states have call successors, (4415), 1014 states have call predecessors, (4415), 1001 states have return successors, (4941), 4354 states have call predecessors, (4941), 4413 states have call successors, (4941) [2022-11-19 06:42:25,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13121 states to 13121 states and 19196 transitions. [2022-11-19 06:42:25,901 INFO L78 Accepts]: Start accepts. Automaton has 13121 states and 19196 transitions. Word has length 111 [2022-11-19 06:42:25,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:42:25,902 INFO L495 AbstractCegarLoop]: Abstraction has 13121 states and 19196 transitions. [2022-11-19 06:42:25,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-11-19 06:42:25,902 INFO L276 IsEmpty]: Start isEmpty. Operand 13121 states and 19196 transitions. [2022-11-19 06:42:25,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-19 06:42:25,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:42:25,998 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] [2022-11-19 06:42:25,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-19 06:42:25,998 INFO L420 AbstractCegarLoop]: === Iteration 28 === 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 32 more)] === [2022-11-19 06:42:25,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:42:25,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1821128964, now seen corresponding path program 1 times [2022-11-19 06:42:25,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:42:25,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106178332] [2022-11-19 06:42:25,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:42:25,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:42:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:42:26,349 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:42:26,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:42:26,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106178332] [2022-11-19 06:42:26,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106178332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:42:26,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:42:26,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:42:26,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124242772] [2022-11-19 06:42:26,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:42:26,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:42:26,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:42:26,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:42:26,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:42:26,353 INFO L87 Difference]: Start difference. First operand 13121 states and 19196 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2022-11-19 06:42:33,732 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 [] [2022-11-19 06:42:34,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:42:34,012 INFO L93 Difference]: Finished difference Result 13121 states and 19196 transitions. [2022-11-19 06:42:34,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:42:34,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 116 [2022-11-19 06:42:34,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:42:34,048 INFO L225 Difference]: With dead ends: 13121 [2022-11-19 06:42:34,048 INFO L226 Difference]: Without dead ends: 13119 [2022-11-19 06:42:34,052 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 [2022-11-19 06:42:34,053 INFO L413 NwaCegarLoop]: 4541 mSDtfsCounter, 4987 mSDsluCounter, 4542 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4991 SdHoareTripleChecker+Valid, 9083 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:42:34,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4991 Valid, 9083 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-19 06:42:34,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13119 states. [2022-11-19 06:42:35,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13119 to 13119. [2022-11-19 06:42:35,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13119 states, 7690 states have (on average 1.2793237971391418) internal successors, (9838), 7863 states have internal predecessors, (9838), 4415 states have call successors, (4415), 1014 states have call predecessors, (4415), 1001 states have return successors, (4941), 4354 states have call predecessors, (4941), 4413 states have call successors, (4941) [2022-11-19 06:42:35,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13119 states to 13119 states and 19194 transitions. [2022-11-19 06:42:35,769 INFO L78 Accepts]: Start accepts. Automaton has 13119 states and 19194 transitions. Word has length 116 [2022-11-19 06:42:35,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:42:35,770 INFO L495 AbstractCegarLoop]: Abstraction has 13119 states and 19194 transitions. [2022-11-19 06:42:35,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2022-11-19 06:42:35,770 INFO L276 IsEmpty]: Start isEmpty. Operand 13119 states and 19194 transitions. [2022-11-19 06:42:35,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-19 06:42:35,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:42:35,774 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:42:35,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-19 06:42:35,774 INFO L420 AbstractCegarLoop]: === Iteration 29 === 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 32 more)] === [2022-11-19 06:42:35,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:42:35,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1387677897, now seen corresponding path program 1 times [2022-11-19 06:42:35,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:42:35,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653876858] [2022-11-19 06:42:35,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:42:35,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:42:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:42:36,553 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-19 06:42:36,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:42:36,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653876858] [2022-11-19 06:42:36,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653876858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:42:36,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:42:36,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:42:36,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521348817] [2022-11-19 06:42:36,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:42:36,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:42:36,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:42:36,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:42:36,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:42:36,557 INFO L87 Difference]: Start difference. First operand 13119 states and 19194 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 06:42:45,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:47,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:49,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:50,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:42:50,223 INFO L93 Difference]: Finished difference Result 13173 states and 19231 transitions. [2022-11-19 06:42:50,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:42:50,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2022-11-19 06:42:50,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:42:50,272 INFO L225 Difference]: With dead ends: 13173 [2022-11-19 06:42:50,272 INFO L226 Difference]: Without dead ends: 13171 [2022-11-19 06:42:50,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:42:50,278 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 4922 mSDsluCounter, 9123 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4924 SdHoareTripleChecker+Valid, 13665 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:42:50,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4924 Valid, 13665 Invalid, 1452 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1448 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2022-11-19 06:42:50,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13171 states. [2022-11-19 06:42:51,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13171 to 13169. [2022-11-19 06:42:51,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13169 states, 7717 states have (on average 1.2778281715692628) internal successors, (9861), 7889 states have internal predecessors, (9861), 4419 states have call successors, (4419), 1034 states have call predecessors, (4419), 1021 states have return successors, (4945), 4358 states have call predecessors, (4945), 4417 states have call successors, (4945) [2022-11-19 06:42:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13169 states to 13169 states and 19225 transitions. [2022-11-19 06:42:52,037 INFO L78 Accepts]: Start accepts. Automaton has 13169 states and 19225 transitions. Word has length 142 [2022-11-19 06:42:52,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:42:52,037 INFO L495 AbstractCegarLoop]: Abstraction has 13169 states and 19225 transitions. [2022-11-19 06:42:52,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 06:42:52,038 INFO L276 IsEmpty]: Start isEmpty. Operand 13169 states and 19225 transitions. [2022-11-19 06:42:52,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-19 06:42:52,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:42:52,042 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] [2022-11-19 06:42:52,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-19 06:42:52,042 INFO L420 AbstractCegarLoop]: === Iteration 30 === 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 32 more)] === [2022-11-19 06:42:52,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:42:52,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1033972903, now seen corresponding path program 1 times [2022-11-19 06:42:52,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:42:52,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898995081] [2022-11-19 06:42:52,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:42:52,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:42:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:42:52,824 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:42:52,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:42:52,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898995081] [2022-11-19 06:42:52,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898995081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:42:52,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:42:52,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:42:52,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906021256] [2022-11-19 06:42:52,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:42:52,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:42:52,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:42:52,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:42:52,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:42:52,827 INFO L87 Difference]: Start difference. First operand 13169 states and 19225 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2022-11-19 06:43:00,358 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 [] [2022-11-19 06:43:00,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:43:00,514 INFO L93 Difference]: Finished difference Result 13169 states and 19225 transitions. [2022-11-19 06:43:00,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:43:00,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 121 [2022-11-19 06:43:00,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:43:00,557 INFO L225 Difference]: With dead ends: 13169 [2022-11-19 06:43:00,557 INFO L226 Difference]: Without dead ends: 13167 [2022-11-19 06:43:00,563 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 [2022-11-19 06:43:00,564 INFO L413 NwaCegarLoop]: 4537 mSDtfsCounter, 4982 mSDsluCounter, 4538 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4986 SdHoareTripleChecker+Valid, 9075 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:43:00,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4986 Valid, 9075 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-19 06:43:00,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13167 states. [2022-11-19 06:43:02,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13167 to 13167. [2022-11-19 06:43:02,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13167 states, 7716 states have (on average 1.277734577501296) internal successors, (9859), 7887 states have internal predecessors, (9859), 4419 states have call successors, (4419), 1034 states have call predecessors, (4419), 1021 states have return successors, (4945), 4358 states have call predecessors, (4945), 4417 states have call successors, (4945) [2022-11-19 06:43:02,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13167 states to 13167 states and 19223 transitions. [2022-11-19 06:43:02,614 INFO L78 Accepts]: Start accepts. Automaton has 13167 states and 19223 transitions. Word has length 121 [2022-11-19 06:43:02,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:43:02,614 INFO L495 AbstractCegarLoop]: Abstraction has 13167 states and 19223 transitions. [2022-11-19 06:43:02,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2022-11-19 06:43:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 13167 states and 19223 transitions. [2022-11-19 06:43:02,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-19 06:43:02,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:43:02,618 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] [2022-11-19 06:43:02,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-19 06:43:02,618 INFO L420 AbstractCegarLoop]: === Iteration 31 === 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 32 more)] === [2022-11-19 06:43:02,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:43:02,619 INFO L85 PathProgramCache]: Analyzing trace with hash -2098959494, now seen corresponding path program 1 times [2022-11-19 06:43:02,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:43:02,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128246013] [2022-11-19 06:43:02,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:43:02,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:43:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:43:02,946 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:43:02,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:43:02,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128246013] [2022-11-19 06:43:02,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128246013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:43:02,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:43:02,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:43:02,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363754271] [2022-11-19 06:43:02,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:43:02,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:43:02,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:43:02,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:43:02,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:43:02,949 INFO L87 Difference]: Start difference. First operand 13167 states and 19223 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2022-11-19 06:43:10,319 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 [] [2022-11-19 06:43:10,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:43:10,492 INFO L93 Difference]: Finished difference Result 13167 states and 19223 transitions. [2022-11-19 06:43:10,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:43:10,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 126 [2022-11-19 06:43:10,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:43:10,537 INFO L225 Difference]: With dead ends: 13167 [2022-11-19 06:43:10,537 INFO L226 Difference]: Without dead ends: 13165 [2022-11-19 06:43:10,544 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 [2022-11-19 06:43:10,545 INFO L413 NwaCegarLoop]: 4535 mSDtfsCounter, 4979 mSDsluCounter, 4536 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4983 SdHoareTripleChecker+Valid, 9071 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:43:10,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4983 Valid, 9071 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-19 06:43:10,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13165 states. [2022-11-19 06:43:12,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13165 to 13165. [2022-11-19 06:43:12,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13165 states, 7715 states have (on average 1.2776409591704472) internal successors, (9857), 7885 states have internal predecessors, (9857), 4419 states have call successors, (4419), 1034 states have call predecessors, (4419), 1021 states have return successors, (4945), 4358 states have call predecessors, (4945), 4417 states have call successors, (4945) [2022-11-19 06:43:12,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13165 states to 13165 states and 19221 transitions. [2022-11-19 06:43:12,883 INFO L78 Accepts]: Start accepts. Automaton has 13165 states and 19221 transitions. Word has length 126 [2022-11-19 06:43:12,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:43:12,884 INFO L495 AbstractCegarLoop]: Abstraction has 13165 states and 19221 transitions. [2022-11-19 06:43:12,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2022-11-19 06:43:12,884 INFO L276 IsEmpty]: Start isEmpty. Operand 13165 states and 19221 transitions. [2022-11-19 06:43:12,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-19 06:43:12,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:43:12,888 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] [2022-11-19 06:43:12,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-19 06:43:12,888 INFO L420 AbstractCegarLoop]: === Iteration 32 === 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 32 more)] === [2022-11-19 06:43:12,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:43:12,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1570964388, now seen corresponding path program 1 times [2022-11-19 06:43:12,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:43:12,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628591885] [2022-11-19 06:43:12,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:43:12,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:43:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:43:13,214 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:43:13,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:43:13,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628591885] [2022-11-19 06:43:13,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628591885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:43:13,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:43:13,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:43:13,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91975710] [2022-11-19 06:43:13,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:43:13,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:43:13,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:43:13,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:43:13,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:43:13,217 INFO L87 Difference]: Start difference. First operand 13165 states and 19221 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2022-11-19 06:43:22,509 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 [] [2022-11-19 06:43:22,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:43:22,794 INFO L93 Difference]: Finished difference Result 13307 states and 19376 transitions. [2022-11-19 06:43:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:43:22,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 131 [2022-11-19 06:43:22,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:43:22,837 INFO L225 Difference]: With dead ends: 13307 [2022-11-19 06:43:22,837 INFO L226 Difference]: Without dead ends: 13305 [2022-11-19 06:43:22,844 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 [2022-11-19 06:43:22,845 INFO L413 NwaCegarLoop]: 5744 mSDtfsCounter, 4900 mSDsluCounter, 10259 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 16003 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:43:22,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4904 Valid, 16003 Invalid, 1432 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1430 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-19 06:43:22,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13305 states. [2022-11-19 06:43:24,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13305 to 13271. [2022-11-19 06:43:24,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13271 states, 7770 states have (on average 1.2756756756756757) internal successors, (9912), 7940 states have internal predecessors, (9912), 4453 states have call successors, (4453), 1051 states have call predecessors, (4453), 1038 states have return successors, (4979), 4392 states have call predecessors, (4979), 4451 states have call successors, (4979) [2022-11-19 06:43:24,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13271 states to 13271 states and 19344 transitions. [2022-11-19 06:43:24,761 INFO L78 Accepts]: Start accepts. Automaton has 13271 states and 19344 transitions. Word has length 131 [2022-11-19 06:43:24,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:43:24,761 INFO L495 AbstractCegarLoop]: Abstraction has 13271 states and 19344 transitions. [2022-11-19 06:43:24,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2022-11-19 06:43:24,762 INFO L276 IsEmpty]: Start isEmpty. Operand 13271 states and 19344 transitions. [2022-11-19 06:43:24,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-19 06:43:24,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:43:24,767 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:43:24,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-19 06:43:24,767 INFO L420 AbstractCegarLoop]: === Iteration 33 === 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 32 more)] === [2022-11-19 06:43:24,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:43:24,768 INFO L85 PathProgramCache]: Analyzing trace with hash 761683448, now seen corresponding path program 1 times [2022-11-19 06:43:24,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:43:24,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141364435] [2022-11-19 06:43:24,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:43:24,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:43:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:43:25,214 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-19 06:43:25,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:43:25,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141364435] [2022-11-19 06:43:25,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141364435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:43:25,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:43:25,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:43:25,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700938184] [2022-11-19 06:43:25,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:43:25,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:43:25,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:43:25,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:43:25,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:43:25,217 INFO L87 Difference]: Start difference. First operand 13271 states and 19344 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-19 06:43:36,025 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 [] [2022-11-19 06:43:36,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:43:36,223 INFO L93 Difference]: Finished difference Result 13273 states and 19345 transitions. [2022-11-19 06:43:36,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:43:36,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 156 [2022-11-19 06:43:36,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:43:36,285 INFO L225 Difference]: With dead ends: 13273 [2022-11-19 06:43:36,285 INFO L226 Difference]: Without dead ends: 13271 [2022-11-19 06:43:36,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:43:36,295 INFO L413 NwaCegarLoop]: 4541 mSDtfsCounter, 51 mSDsluCounter, 13572 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 18113 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:43:36,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 18113 Invalid, 1924 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1922 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2022-11-19 06:43:36,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13271 states. [2022-11-19 06:43:38,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13271 to 13271. [2022-11-19 06:43:38,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13271 states, 7770 states have (on average 1.2751608751608752) internal successors, (9908), 7940 states have internal predecessors, (9908), 4453 states have call successors, (4453), 1051 states have call predecessors, (4453), 1038 states have return successors, (4979), 4392 states have call predecessors, (4979), 4451 states have call successors, (4979) [2022-11-19 06:43:38,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13271 states to 13271 states and 19340 transitions. [2022-11-19 06:43:38,266 INFO L78 Accepts]: Start accepts. Automaton has 13271 states and 19340 transitions. Word has length 156 [2022-11-19 06:43:38,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:43:38,267 INFO L495 AbstractCegarLoop]: Abstraction has 13271 states and 19340 transitions. [2022-11-19 06:43:38,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-19 06:43:38,267 INFO L276 IsEmpty]: Start isEmpty. Operand 13271 states and 19340 transitions. [2022-11-19 06:43:38,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-19 06:43:38,270 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:43:38,270 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] [2022-11-19 06:43:38,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-19 06:43:38,270 INFO L420 AbstractCegarLoop]: === Iteration 34 === 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 32 more)] === [2022-11-19 06:43:38,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:43:38,271 INFO L85 PathProgramCache]: Analyzing trace with hash 748194589, now seen corresponding path program 1 times [2022-11-19 06:43:38,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:43:38,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373863705] [2022-11-19 06:43:38,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:43:38,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:43:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:43:38,589 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:43:38,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:43:38,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373863705] [2022-11-19 06:43:38,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373863705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:43:38,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:43:38,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:43:38,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976859740] [2022-11-19 06:43:38,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:43:38,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:43:38,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:43:38,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:43:38,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:43:38,592 INFO L87 Difference]: Start difference. First operand 13271 states and 19340 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2022-11-19 06:43:46,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:48,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:49,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:43:49,114 INFO L93 Difference]: Finished difference Result 13271 states and 19340 transitions. [2022-11-19 06:43:49,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:43:49,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 136 [2022-11-19 06:43:49,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:43:49,166 INFO L225 Difference]: With dead ends: 13271 [2022-11-19 06:43:49,166 INFO L226 Difference]: Without dead ends: 13269 [2022-11-19 06:43:49,174 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 [2022-11-19 06:43:49,175 INFO L413 NwaCegarLoop]: 4533 mSDtfsCounter, 4976 mSDsluCounter, 4533 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4978 SdHoareTripleChecker+Valid, 9066 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:43:49,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4978 Valid, 9066 Invalid, 955 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 954 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-11-19 06:43:49,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13269 states. [2022-11-19 06:43:51,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13269 to 13269. [2022-11-19 06:43:51,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13269 states, 7769 states have (on average 1.2750675762646415) internal successors, (9906), 7938 states have internal predecessors, (9906), 4453 states have call successors, (4453), 1051 states have call predecessors, (4453), 1038 states have return successors, (4979), 4392 states have call predecessors, (4979), 4451 states have call successors, (4979) [2022-11-19 06:43:51,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13269 states to 13269 states and 19338 transitions. [2022-11-19 06:43:51,312 INFO L78 Accepts]: Start accepts. Automaton has 13269 states and 19338 transitions. Word has length 136 [2022-11-19 06:43:51,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:43:51,312 INFO L495 AbstractCegarLoop]: Abstraction has 13269 states and 19338 transitions. [2022-11-19 06:43:51,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2022-11-19 06:43:51,313 INFO L276 IsEmpty]: Start isEmpty. Operand 13269 states and 19338 transitions. [2022-11-19 06:43:51,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-19 06:43:51,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:43:51,315 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 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] [2022-11-19 06:43:51,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-19 06:43:51,316 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:43:51,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:43:51,316 INFO L85 PathProgramCache]: Analyzing trace with hash 540164268, now seen corresponding path program 1 times [2022-11-19 06:43:51,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:43:51,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219100495] [2022-11-19 06:43:51,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:43:51,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:43:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:43:51,744 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-19 06:43:51,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:43:51,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219100495] [2022-11-19 06:43:51,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219100495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:43:51,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:43:51,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:43:51,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497527455] [2022-11-19 06:43:51,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:43:51,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:43:51,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:43:51,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:43:51,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:43:51,747 INFO L87 Difference]: Start difference. First operand 13269 states and 19338 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 06:44:02,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:04,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:07,003 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 [] [2022-11-19 06:44:07,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:44:07,185 INFO L93 Difference]: Finished difference Result 13269 states and 19338 transitions. [2022-11-19 06:44:07,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:44:07,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 144 [2022-11-19 06:44:07,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:44:07,228 INFO L225 Difference]: With dead ends: 13269 [2022-11-19 06:44:07,228 INFO L226 Difference]: Without dead ends: 13267 [2022-11-19 06:44:07,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:44:07,236 INFO L413 NwaCegarLoop]: 4531 mSDtfsCounter, 43 mSDsluCounter, 13547 mSDsCounter, 0 mSdLazyCounter, 1914 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 18078 SdHoareTripleChecker+Invalid, 1918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1914 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:44:07,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 18078 Invalid, 1918 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1914 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2022-11-19 06:44:07,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13267 states. [2022-11-19 06:44:09,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13267 to 13267. [2022-11-19 06:44:09,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13267 states, 7768 states have (on average 1.274588053553038) internal successors, (9901), 7936 states have internal predecessors, (9901), 4453 states have call successors, (4453), 1051 states have call predecessors, (4453), 1038 states have return successors, (4979), 4392 states have call predecessors, (4979), 4451 states have call successors, (4979) [2022-11-19 06:44:09,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 19333 transitions. [2022-11-19 06:44:09,213 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 19333 transitions. Word has length 144 [2022-11-19 06:44:09,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:44:09,213 INFO L495 AbstractCegarLoop]: Abstraction has 13267 states and 19333 transitions. [2022-11-19 06:44:09,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 06:44:09,214 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 19333 transitions. [2022-11-19 06:44:09,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-19 06:44:09,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:44:09,217 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] [2022-11-19 06:44:09,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-19 06:44:09,217 INFO L420 AbstractCegarLoop]: === Iteration 36 === 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 32 more)] === [2022-11-19 06:44:09,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:44:09,218 INFO L85 PathProgramCache]: Analyzing trace with hash 181694488, now seen corresponding path program 1 times [2022-11-19 06:44:09,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:44:09,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222007249] [2022-11-19 06:44:09,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:44:09,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:44:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:44:09,635 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:44:09,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:44:09,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222007249] [2022-11-19 06:44:09,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222007249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:44:09,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:44:09,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:44:09,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211858944] [2022-11-19 06:44:09,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:44:09,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:44:09,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:44:09,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:44:09,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:44:09,639 INFO L87 Difference]: Start difference. First operand 13267 states and 19333 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2022-11-19 06:44:18,516 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 [] [2022-11-19 06:44:18,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:44:18,705 INFO L93 Difference]: Finished difference Result 13267 states and 19333 transitions. [2022-11-19 06:44:18,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:44:18,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 141 [2022-11-19 06:44:18,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:44:18,744 INFO L225 Difference]: With dead ends: 13267 [2022-11-19 06:44:18,744 INFO L226 Difference]: Without dead ends: 13265 [2022-11-19 06:44:18,749 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 [2022-11-19 06:44:18,750 INFO L413 NwaCegarLoop]: 4529 mSDtfsCounter, 4970 mSDsluCounter, 4530 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4974 SdHoareTripleChecker+Valid, 9059 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:44:18,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4974 Valid, 9059 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-11-19 06:44:18,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13265 states. [2022-11-19 06:44:20,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13265 to 13265. [2022-11-19 06:44:20,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13265 states, 7767 states have (on average 1.2744946568816788) internal successors, (9899), 7934 states have internal predecessors, (9899), 4453 states have call successors, (4453), 1051 states have call predecessors, (4453), 1038 states have return successors, (4979), 4392 states have call predecessors, (4979), 4451 states have call successors, (4979) [2022-11-19 06:44:20,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13265 states to 13265 states and 19331 transitions. [2022-11-19 06:44:20,598 INFO L78 Accepts]: Start accepts. Automaton has 13265 states and 19331 transitions. Word has length 141 [2022-11-19 06:44:20,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:44:20,598 INFO L495 AbstractCegarLoop]: Abstraction has 13265 states and 19331 transitions. [2022-11-19 06:44:20,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2022-11-19 06:44:20,598 INFO L276 IsEmpty]: Start isEmpty. Operand 13265 states and 19331 transitions. [2022-11-19 06:44:20,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-19 06:44:20,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:44:20,601 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] [2022-11-19 06:44:20,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-19 06:44:20,602 INFO L420 AbstractCegarLoop]: === Iteration 37 === 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 32 more)] === [2022-11-19 06:44:20,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:44:20,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1670115116, now seen corresponding path program 1 times [2022-11-19 06:44:20,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:44:20,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283802993] [2022-11-19 06:44:20,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:44:20,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:44:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:44:20,861 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:44:20,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:44:20,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283802993] [2022-11-19 06:44:20,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283802993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:44:20,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:44:20,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:44:20,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547915868] [2022-11-19 06:44:20,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:44:20,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:44:20,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:44:20,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:44:20,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:44:20,867 INFO L87 Difference]: Start difference. First operand 13265 states and 19331 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2022-11-19 06:44:28,046 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 [] [2022-11-19 06:44:28,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:44:28,318 INFO L93 Difference]: Finished difference Result 13265 states and 19331 transitions. [2022-11-19 06:44:28,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:44:28,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 146 [2022-11-19 06:44:28,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:44:28,362 INFO L225 Difference]: With dead ends: 13265 [2022-11-19 06:44:28,362 INFO L226 Difference]: Without dead ends: 13133 [2022-11-19 06:44:28,371 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 [2022-11-19 06:44:28,372 INFO L413 NwaCegarLoop]: 4528 mSDtfsCounter, 4967 mSDsluCounter, 4529 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4969 SdHoareTripleChecker+Valid, 9057 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:44:28,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4969 Valid, 9057 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-19 06:44:28,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13133 states. [2022-11-19 06:44:30,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13133 to 13133. [2022-11-19 06:44:30,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13133 states, 7700 states have (on average 1.275974025974026) internal successors, (9825), 7862 states have internal predecessors, (9825), 4409 states have call successors, (4409), 1031 states have call predecessors, (4409), 1018 states have return successors, (4935), 4352 states have call predecessors, (4935), 4407 states have call successors, (4935) [2022-11-19 06:44:30,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13133 states to 13133 states and 19169 transitions. [2022-11-19 06:44:30,486 INFO L78 Accepts]: Start accepts. Automaton has 13133 states and 19169 transitions. Word has length 146 [2022-11-19 06:44:30,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:44:30,486 INFO L495 AbstractCegarLoop]: Abstraction has 13133 states and 19169 transitions. [2022-11-19 06:44:30,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2022-11-19 06:44:30,487 INFO L276 IsEmpty]: Start isEmpty. Operand 13133 states and 19169 transitions. [2022-11-19 06:44:30,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-19 06:44:30,491 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:44:30,491 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:44:30,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-19 06:44:30,491 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_mutex__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 32 more)] === [2022-11-19 06:44:30,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:44:30,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1209879876, now seen corresponding path program 1 times [2022-11-19 06:44:30,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:44:30,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850704047] [2022-11-19 06:44:30,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:44:30,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:44:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:44:31,612 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-11-19 06:44:31,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:44:31,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850704047] [2022-11-19 06:44:31,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850704047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:44:31,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:44:31,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:44:31,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803321445] [2022-11-19 06:44:31,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:44:31,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:44:31,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:44:31,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:44:31,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:44:31,615 INFO L87 Difference]: Start difference. First operand 13133 states and 19169 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-19 06:44:43,193 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 [] [2022-11-19 06:44:45,204 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 [] [2022-11-19 06:44:45,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:44:45,317 INFO L93 Difference]: Finished difference Result 14363 states and 20696 transitions. [2022-11-19 06:44:45,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:44:45,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 206 [2022-11-19 06:44:45,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:44:45,358 INFO L225 Difference]: With dead ends: 14363 [2022-11-19 06:44:45,358 INFO L226 Difference]: Without dead ends: 14361 [2022-11-19 06:44:45,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:44:45,368 INFO L413 NwaCegarLoop]: 4721 mSDtfsCounter, 4764 mSDsluCounter, 10150 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4769 SdHoareTripleChecker+Valid, 14871 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:44:45,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4769 Valid, 14871 Invalid, 1546 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1541 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2022-11-19 06:44:45,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14361 states. [2022-11-19 06:44:47,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14361 to 14357. [2022-11-19 06:44:47,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14357 states, 8400 states have (on average 1.2691666666666668) internal successors, (10661), 8568 states have internal predecessors, (10661), 4747 states have call successors, (4747), 1221 states have call predecessors, (4747), 1204 states have return successors, (5281), 4684 states have call predecessors, (5281), 4745 states have call successors, (5281) [2022-11-19 06:44:47,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14357 states to 14357 states and 20689 transitions. [2022-11-19 06:44:47,388 INFO L78 Accepts]: Start accepts. Automaton has 14357 states and 20689 transitions. Word has length 206 [2022-11-19 06:44:47,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:44:47,389 INFO L495 AbstractCegarLoop]: Abstraction has 14357 states and 20689 transitions. [2022-11-19 06:44:47,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-19 06:44:47,389 INFO L276 IsEmpty]: Start isEmpty. Operand 14357 states and 20689 transitions. [2022-11-19 06:44:47,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-19 06:44:47,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:44:47,393 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:44:47,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-19 06:44:47,394 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:44:47,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:44:47,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1370559468, now seen corresponding path program 1 times [2022-11-19 06:44:47,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:44:47,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42552726] [2022-11-19 06:44:47,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:44:47,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:44:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:44:47,732 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2022-11-19 06:44:47,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:44:47,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42552726] [2022-11-19 06:44:47,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42552726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:44:47,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:44:47,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:44:47,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038912018] [2022-11-19 06:44:47,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:44:47,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:44:47,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:44:47,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:44:47,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:44:47,734 INFO L87 Difference]: Start difference. First operand 14357 states and 20689 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 06:44:58,971 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 [] [2022-11-19 06:44:59,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:44:59,144 INFO L93 Difference]: Finished difference Result 28169 states and 40651 transitions. [2022-11-19 06:44:59,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:44:59,145 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 208 [2022-11-19 06:44:59,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:44:59,208 INFO L225 Difference]: With dead ends: 28169 [2022-11-19 06:44:59,208 INFO L226 Difference]: Without dead ends: 14381 [2022-11-19 06:44:59,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:44:59,271 INFO L413 NwaCegarLoop]: 4512 mSDtfsCounter, 3 mSDsluCounter, 18030 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 22542 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:44:59,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 22542 Invalid, 2391 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2390 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-11-19 06:44:59,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14381 states. [2022-11-19 06:45:01,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14381 to 14381. [2022-11-19 06:45:01,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14381 states, 8416 states have (on average 1.2686549429657794) internal successors, (10677), 8588 states have internal predecessors, (10677), 4747 states have call successors, (4747), 1221 states have call predecessors, (4747), 1212 states have return successors, (5317), 4688 states have call predecessors, (5317), 4745 states have call successors, (5317) [2022-11-19 06:45:01,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14381 states to 14381 states and 20741 transitions. [2022-11-19 06:45:01,306 INFO L78 Accepts]: Start accepts. Automaton has 14381 states and 20741 transitions. Word has length 208 [2022-11-19 06:45:01,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:45:01,307 INFO L495 AbstractCegarLoop]: Abstraction has 14381 states and 20741 transitions. [2022-11-19 06:45:01,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 06:45:01,308 INFO L276 IsEmpty]: Start isEmpty. Operand 14381 states and 20741 transitions. [2022-11-19 06:45:01,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-19 06:45:01,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:45:01,317 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:45:01,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-19 06:45:01,317 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:45:01,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:45:01,318 INFO L85 PathProgramCache]: Analyzing trace with hash 840454591, now seen corresponding path program 1 times [2022-11-19 06:45:01,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:45:01,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924106019] [2022-11-19 06:45:01,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:45:01,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:45:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:45:01,749 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2022-11-19 06:45:01,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:45:01,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924106019] [2022-11-19 06:45:01,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924106019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:45:01,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:45:01,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:45:01,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443025633] [2022-11-19 06:45:01,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:45:01,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:45:01,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:45:01,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:45:01,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:45:01,752 INFO L87 Difference]: Start difference. First operand 14381 states and 20741 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 06:45:14,108 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 [] [2022-11-19 06:45:14,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:45:14,286 INFO L93 Difference]: Finished difference Result 28209 states and 40723 transitions. [2022-11-19 06:45:14,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:45:14,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 213 [2022-11-19 06:45:14,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:45:14,340 INFO L225 Difference]: With dead ends: 28209 [2022-11-19 06:45:14,340 INFO L226 Difference]: Without dead ends: 14397 [2022-11-19 06:45:14,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:45:14,392 INFO L413 NwaCegarLoop]: 4512 mSDtfsCounter, 3 mSDsluCounter, 18028 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 22540 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:45:14,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 22540 Invalid, 2393 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2392 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2022-11-19 06:45:14,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14397 states. [2022-11-19 06:45:16,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14397 to 14397. [2022-11-19 06:45:16,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14397 states, 8428 states have (on average 1.2682724252491695) internal successors, (10689), 8600 states have internal predecessors, (10689), 4747 states have call successors, (4747), 1221 states have call predecessors, (4747), 1216 states have return successors, (5325), 4692 states have call predecessors, (5325), 4745 states have call successors, (5325) [2022-11-19 06:45:16,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14397 states to 14397 states and 20761 transitions. [2022-11-19 06:45:16,683 INFO L78 Accepts]: Start accepts. Automaton has 14397 states and 20761 transitions. Word has length 213 [2022-11-19 06:45:16,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:45:16,684 INFO L495 AbstractCegarLoop]: Abstraction has 14397 states and 20761 transitions. [2022-11-19 06:45:16,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 06:45:16,684 INFO L276 IsEmpty]: Start isEmpty. Operand 14397 states and 20761 transitions. [2022-11-19 06:45:16,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-19 06:45:16,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:45:16,695 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:45:16,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-19 06:45:16,695 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_mutex__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 32 more)] === [2022-11-19 06:45:16,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:45:16,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1128205371, now seen corresponding path program 1 times [2022-11-19 06:45:16,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:45:16,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051845082] [2022-11-19 06:45:16,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:45:16,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:45:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:45:17,680 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-11-19 06:45:17,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:45:17,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051845082] [2022-11-19 06:45:17,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051845082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:45:17,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:45:17,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:45:17,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807687633] [2022-11-19 06:45:17,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:45:17,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:45:17,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:45:17,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:45:17,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:45:17,685 INFO L87 Difference]: Start difference. First operand 14397 states and 20761 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2022-11-19 06:45:30,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:32,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:34,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:36,938 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 [] [2022-11-19 06:45:37,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:45:37,071 INFO L93 Difference]: Finished difference Result 14411 states and 20772 transitions. [2022-11-19 06:45:37,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:45:37,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 206 [2022-11-19 06:45:37,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:45:37,123 INFO L225 Difference]: With dead ends: 14411 [2022-11-19 06:45:37,123 INFO L226 Difference]: Without dead ends: 14409 [2022-11-19 06:45:37,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:45:37,132 INFO L413 NwaCegarLoop]: 5048 mSDtfsCounter, 814 mSDsluCounter, 14464 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 19512 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:45:37,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 19512 Invalid, 2158 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2155 Invalid, 3 Unknown, 0 Unchecked, 16.7s Time] [2022-11-19 06:45:37,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14409 states. [2022-11-19 06:45:39,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14409 to 14405. [2022-11-19 06:45:39,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14405 states, 8434 states have (on average 1.2678444391747687) internal successors, (10693), 8606 states have internal predecessors, (10693), 4747 states have call successors, (4747), 1223 states have call predecessors, (4747), 1218 states have return successors, (5325), 4692 states have call predecessors, (5325), 4745 states have call successors, (5325) [2022-11-19 06:45:39,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14405 states to 14405 states and 20765 transitions. [2022-11-19 06:45:39,373 INFO L78 Accepts]: Start accepts. Automaton has 14405 states and 20765 transitions. Word has length 206 [2022-11-19 06:45:39,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:45:39,373 INFO L495 AbstractCegarLoop]: Abstraction has 14405 states and 20765 transitions. [2022-11-19 06:45:39,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2022-11-19 06:45:39,373 INFO L276 IsEmpty]: Start isEmpty. Operand 14405 states and 20765 transitions. [2022-11-19 06:45:39,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-11-19 06:45:39,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:45:39,379 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:45:39,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-19 06:45:39,380 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_assert_linux_kernel_locking_mutex__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 32 more)] === [2022-11-19 06:45:39,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:45:39,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1948780935, now seen corresponding path program 1 times [2022-11-19 06:45:39,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:45:39,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703473544] [2022-11-19 06:45:39,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:45:39,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:45:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:45:40,707 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-11-19 06:45:40,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:45:40,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703473544] [2022-11-19 06:45:40,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703473544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:45:40,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:45:40,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 06:45:40,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787745628] [2022-11-19 06:45:40,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:45:40,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 06:45:40,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:45:40,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 06:45:40,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-19 06:45:40,710 INFO L87 Difference]: Start difference. First operand 14405 states and 20765 transitions. Second operand has 10 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (42), 5 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-19 06:45:59,559 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 [] [2022-11-19 06:45:59,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:45:59,738 INFO L93 Difference]: Finished difference Result 28853 states and 41694 transitions. [2022-11-19 06:45:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 06:45:59,739 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (42), 5 states have call predecessors, (42), 2 states have call successors, (42) Word has length 255 [2022-11-19 06:45:59,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:45:59,789 INFO L225 Difference]: With dead ends: 28853 [2022-11-19 06:45:59,789 INFO L226 Difference]: Without dead ends: 14467 [2022-11-19 06:45:59,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-19 06:45:59,832 INFO L413 NwaCegarLoop]: 4522 mSDtfsCounter, 7 mSDsluCounter, 36135 mSDsCounter, 0 mSdLazyCounter, 4318 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 40657 SdHoareTripleChecker+Invalid, 4321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4318 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:45:59,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 40657 Invalid, 4321 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 4318 Invalid, 1 Unknown, 0 Unchecked, 16.1s Time] [2022-11-19 06:45:59,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14467 states. [2022-11-19 06:46:01,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14467 to 14431. [2022-11-19 06:46:01,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14431 states, 8452 states have (on average 1.267274017983909) internal successors, (10711), 8622 states have internal predecessors, (10711), 4749 states have call successors, (4749), 1223 states have call predecessors, (4749), 1224 states have return successors, (5381), 4702 states have call predecessors, (5381), 4747 states have call successors, (5381) [2022-11-19 06:46:02,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14431 states to 14431 states and 20841 transitions. [2022-11-19 06:46:02,011 INFO L78 Accepts]: Start accepts. Automaton has 14431 states and 20841 transitions. Word has length 255 [2022-11-19 06:46:02,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:02,012 INFO L495 AbstractCegarLoop]: Abstraction has 14431 states and 20841 transitions. [2022-11-19 06:46:02,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (42), 5 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-19 06:46:02,013 INFO L276 IsEmpty]: Start isEmpty. Operand 14431 states and 20841 transitions. [2022-11-19 06:46:02,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-19 06:46:02,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:02,025 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:02,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-19 06:46:02,026 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_assert_linux_kernel_locking_mutex__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 32 more)] === [2022-11-19 06:46:02,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:02,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1011184168, now seen corresponding path program 1 times [2022-11-19 06:46:02,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:02,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277983737] [2022-11-19 06:46:02,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:02,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:03,343 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-11-19 06:46:03,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:03,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277983737] [2022-11-19 06:46:03,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277983737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:03,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:03,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:46:03,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185740324] [2022-11-19 06:46:03,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:03,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:46:03,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:03,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:46:03,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:46:03,348 INFO L87 Difference]: Start difference. First operand 14431 states and 20841 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-19 06:46:13,372 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 [] [2022-11-19 06:46:13,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:13,498 INFO L93 Difference]: Finished difference Result 14571 states and 20969 transitions. [2022-11-19 06:46:13,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:46:13,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 217 [2022-11-19 06:46:13,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:13,548 INFO L225 Difference]: With dead ends: 14571 [2022-11-19 06:46:13,548 INFO L226 Difference]: Without dead ends: 14569 [2022-11-19 06:46:13,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:46:13,556 INFO L413 NwaCegarLoop]: 4520 mSDtfsCounter, 4638 mSDsluCounter, 9283 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4645 SdHoareTripleChecker+Valid, 13803 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:13,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4645 Valid, 13803 Invalid, 1477 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1474 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-11-19 06:46:13,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14569 states. [2022-11-19 06:46:15,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14569 to 14567. [2022-11-19 06:46:15,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14567 states, 8538 states have (on average 1.2671585851487468) internal successors, (10819), 8714 states have internal predecessors, (10819), 4755 states have call successors, (4755), 1267 states have call predecessors, (4755), 1268 states have return successors, (5387), 4708 states have call predecessors, (5387), 4753 states have call successors, (5387) [2022-11-19 06:46:15,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14567 states to 14567 states and 20961 transitions. [2022-11-19 06:46:15,830 INFO L78 Accepts]: Start accepts. Automaton has 14567 states and 20961 transitions. Word has length 217 [2022-11-19 06:46:15,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:15,831 INFO L495 AbstractCegarLoop]: Abstraction has 14567 states and 20961 transitions. [2022-11-19 06:46:15,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-19 06:46:15,831 INFO L276 IsEmpty]: Start isEmpty. Operand 14567 states and 20961 transitions. [2022-11-19 06:46:15,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-19 06:46:15,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:15,839 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:15,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-19 06:46:15,839 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:46:15,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:15,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1331593078, now seen corresponding path program 1 times [2022-11-19 06:46:15,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:15,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177161245] [2022-11-19 06:46:15,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:15,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:16,198 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-11-19 06:46:16,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:16,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177161245] [2022-11-19 06:46:16,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177161245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:16,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:16,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:46:16,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946449186] [2022-11-19 06:46:16,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:16,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:46:16,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:16,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:46:16,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:46:16,201 INFO L87 Difference]: Start difference. First operand 14567 states and 20961 transitions. Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-19 06:46:27,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:46:28,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:28,139 INFO L93 Difference]: Finished difference Result 28605 states and 41253 transitions. [2022-11-19 06:46:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:46:28,140 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) Word has length 250 [2022-11-19 06:46:28,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:28,194 INFO L225 Difference]: With dead ends: 28605 [2022-11-19 06:46:28,194 INFO L226 Difference]: Without dead ends: 14607 [2022-11-19 06:46:28,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:46:28,241 INFO L413 NwaCegarLoop]: 4514 mSDtfsCounter, 22 mSDsluCounter, 17997 mSDsCounter, 0 mSdLazyCounter, 2387 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 22511 SdHoareTripleChecker+Invalid, 2389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:28,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 22511 Invalid, 2389 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2387 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2022-11-19 06:46:28,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14607 states. [2022-11-19 06:46:30,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14607 to 14599. [2022-11-19 06:46:30,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14599 states, 8558 states have (on average 1.266534236971255) internal successors, (10839), 8734 states have internal predecessors, (10839), 4763 states have call successors, (4763), 1267 states have call predecessors, (4763), 1272 states have return successors, (5451), 4720 states have call predecessors, (5451), 4761 states have call successors, (5451) [2022-11-19 06:46:30,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14599 states to 14599 states and 21053 transitions. [2022-11-19 06:46:30,551 INFO L78 Accepts]: Start accepts. Automaton has 14599 states and 21053 transitions. Word has length 250 [2022-11-19 06:46:30,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:30,551 INFO L495 AbstractCegarLoop]: Abstraction has 14599 states and 21053 transitions. [2022-11-19 06:46:30,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-19 06:46:30,551 INFO L276 IsEmpty]: Start isEmpty. Operand 14599 states and 21053 transitions. [2022-11-19 06:46:30,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-11-19 06:46:30,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:30,558 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:30,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-19 06:46:30,558 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:46:30,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:30,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2001509348, now seen corresponding path program 1 times [2022-11-19 06:46:30,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:30,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869186318] [2022-11-19 06:46:30,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:30,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:30,846 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-11-19 06:46:30,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:30,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869186318] [2022-11-19 06:46:30,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869186318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:30,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:30,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:46:30,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693828470] [2022-11-19 06:46:30,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:30,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:46:30,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:30,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:46:30,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:46:30,849 INFO L87 Difference]: Start difference. First operand 14599 states and 21053 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-19 06:46:39,209 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 [] [2022-11-19 06:46:39,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:39,348 INFO L93 Difference]: Finished difference Result 28729 states and 41524 transitions. [2022-11-19 06:46:39,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:46:39,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 227 [2022-11-19 06:46:39,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:39,398 INFO L225 Difference]: With dead ends: 28729 [2022-11-19 06:46:39,398 INFO L226 Difference]: Without dead ends: 14699 [2022-11-19 06:46:39,438 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 [2022-11-19 06:46:39,439 INFO L413 NwaCegarLoop]: 4524 mSDtfsCounter, 25 mSDsluCounter, 4451 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 8975 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:39,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 8975 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1004 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-19 06:46:39,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14699 states. [2022-11-19 06:46:41,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14699 to 14603. [2022-11-19 06:46:41,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14603 states, 8562 states have (on average 1.266409717355758) internal successors, (10843), 8738 states have internal predecessors, (10843), 4763 states have call successors, (4763), 1267 states have call predecessors, (4763), 1272 states have return successors, (5451), 4720 states have call predecessors, (5451), 4761 states have call successors, (5451) [2022-11-19 06:46:41,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14603 states to 14603 states and 21057 transitions. [2022-11-19 06:46:41,708 INFO L78 Accepts]: Start accepts. Automaton has 14603 states and 21057 transitions. Word has length 227 [2022-11-19 06:46:41,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:41,709 INFO L495 AbstractCegarLoop]: Abstraction has 14603 states and 21057 transitions. [2022-11-19 06:46:41,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-19 06:46:41,709 INFO L276 IsEmpty]: Start isEmpty. Operand 14603 states and 21057 transitions. [2022-11-19 06:46:41,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-19 06:46:41,718 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:41,719 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:41,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-19 06:46:41,719 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:46:41,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:41,719 INFO L85 PathProgramCache]: Analyzing trace with hash -369071111, now seen corresponding path program 1 times [2022-11-19 06:46:41,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:41,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187315121] [2022-11-19 06:46:41,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:41,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:42,535 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-11-19 06:46:42,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:42,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187315121] [2022-11-19 06:46:42,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187315121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:42,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:42,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:46:42,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842438023] [2022-11-19 06:46:42,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:42,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:46:42,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:42,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:46:42,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:46:42,539 INFO L87 Difference]: Start difference. First operand 14603 states and 21057 transitions. Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-19 06:46:58,223 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 [] [2022-11-19 06:46:58,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:58,542 INFO L93 Difference]: Finished difference Result 28627 states and 41444 transitions. [2022-11-19 06:46:58,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:46:58,543 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) Word has length 216 [2022-11-19 06:46:58,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:58,598 INFO L225 Difference]: With dead ends: 28627 [2022-11-19 06:46:58,599 INFO L226 Difference]: Without dead ends: 14593 [2022-11-19 06:46:58,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 06:46:58,647 INFO L413 NwaCegarLoop]: 4504 mSDtfsCounter, 4903 mSDsluCounter, 11046 mSDsCounter, 0 mSdLazyCounter, 4358 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4911 SdHoareTripleChecker+Valid, 15550 SdHoareTripleChecker+Invalid, 4359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4358 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:58,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4911 Valid, 15550 Invalid, 4359 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4358 Invalid, 1 Unknown, 0 Unchecked, 12.3s Time] [2022-11-19 06:46:58,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14593 states. [2022-11-19 06:47:00,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14593 to 14593. [2022-11-19 06:47:00,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14593 states, 8553 states have (on average 1.2657547059511283) internal successors, (10826), 8728 states have internal predecessors, (10826), 4763 states have call successors, (4763), 1267 states have call predecessors, (4763), 1272 states have return successors, (5451), 4720 states have call predecessors, (5451), 4761 states have call successors, (5451) [2022-11-19 06:47:01,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14593 states to 14593 states and 21040 transitions. [2022-11-19 06:47:01,065 INFO L78 Accepts]: Start accepts. Automaton has 14593 states and 21040 transitions. Word has length 216 [2022-11-19 06:47:01,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:47:01,066 INFO L495 AbstractCegarLoop]: Abstraction has 14593 states and 21040 transitions. [2022-11-19 06:47:01,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-19 06:47:01,066 INFO L276 IsEmpty]: Start isEmpty. Operand 14593 states and 21040 transitions. [2022-11-19 06:47:01,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-19 06:47:01,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:01,073 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:47:01,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-19 06:47:01,073 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_check_alloc_nonatomicErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:47:01,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:01,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1444071477, now seen corresponding path program 1 times [2022-11-19 06:47:01,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:01,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534988337] [2022-11-19 06:47:01,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:01,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:01,551 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-11-19 06:47:01,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:01,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534988337] [2022-11-19 06:47:01,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534988337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:47:01,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:47:01,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:47:01,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328723770] [2022-11-19 06:47:01,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:47:01,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:47:01,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:47:01,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:47:01,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:47:01,554 INFO L87 Difference]: Start difference. First operand 14593 states and 21040 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-19 06:47:09,401 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 [] [2022-11-19 06:47:09,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:47:09,524 INFO L93 Difference]: Finished difference Result 14593 states and 21040 transitions. [2022-11-19 06:47:09,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:47:09,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 217 [2022-11-19 06:47:09,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:47:09,589 INFO L225 Difference]: With dead ends: 14593 [2022-11-19 06:47:09,589 INFO L226 Difference]: Without dead ends: 14591 [2022-11-19 06:47:09,597 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 [2022-11-19 06:47:09,598 INFO L413 NwaCegarLoop]: 4501 mSDtfsCounter, 4896 mSDsluCounter, 4502 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4902 SdHoareTripleChecker+Valid, 9003 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:47:09,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4902 Valid, 9003 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 949 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-19 06:47:09,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14591 states. [2022-11-19 06:47:11,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14591 to 14591. [2022-11-19 06:47:11,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14591 states, 8552 states have (on average 1.2653180542563143) internal successors, (10821), 8726 states have internal predecessors, (10821), 4763 states have call successors, (4763), 1267 states have call predecessors, (4763), 1272 states have return successors, (5451), 4720 states have call predecessors, (5451), 4761 states have call successors, (5451) [2022-11-19 06:47:11,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 21035 transitions. [2022-11-19 06:47:11,906 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 21035 transitions. Word has length 217 [2022-11-19 06:47:11,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:47:11,907 INFO L495 AbstractCegarLoop]: Abstraction has 14591 states and 21035 transitions. [2022-11-19 06:47:11,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-19 06:47:11,907 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 21035 transitions. [2022-11-19 06:47:11,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-11-19 06:47:11,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:11,918 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:47:11,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-19 06:47:11,919 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_assert_linux_kernel_locking_mutex__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 32 more)] === [2022-11-19 06:47:11,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:11,919 INFO L85 PathProgramCache]: Analyzing trace with hash -834773610, now seen corresponding path program 1 times [2022-11-19 06:47:11,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:11,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437246485] [2022-11-19 06:47:11,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:11,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:12,289 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-19 06:47:12,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:12,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437246485] [2022-11-19 06:47:12,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437246485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:47:12,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:47:12,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:47:12,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980779878] [2022-11-19 06:47:12,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:47:12,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:47:12,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:47:12,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:47:12,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:47:12,292 INFO L87 Difference]: Start difference. First operand 14591 states and 21035 transitions. Second operand has 6 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-19 06:47:25,931 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 [] [2022-11-19 06:47:26,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:47:26,081 INFO L93 Difference]: Finished difference Result 28621 states and 41337 transitions. [2022-11-19 06:47:26,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:47:26,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) Word has length 230 [2022-11-19 06:47:26,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:47:26,136 INFO L225 Difference]: With dead ends: 28621 [2022-11-19 06:47:26,136 INFO L226 Difference]: Without dead ends: 14599 [2022-11-19 06:47:26,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:47:26,182 INFO L413 NwaCegarLoop]: 4502 mSDtfsCounter, 1 mSDsluCounter, 17979 mSDsCounter, 0 mSdLazyCounter, 2402 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 22481 SdHoareTripleChecker+Invalid, 2403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:47:26,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 22481 Invalid, 2403 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2402 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2022-11-19 06:47:26,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14599 states. [2022-11-19 06:47:28,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14599 to 14599. [2022-11-19 06:47:28,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14599 states, 8560 states have (on average 1.265070093457944) internal successors, (10829), 8730 states have internal predecessors, (10829), 4763 states have call successors, (4763), 1267 states have call predecessors, (4763), 1272 states have return successors, (5451), 4724 states have call predecessors, (5451), 4761 states have call successors, (5451) [2022-11-19 06:47:28,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14599 states to 14599 states and 21043 transitions. [2022-11-19 06:47:28,479 INFO L78 Accepts]: Start accepts. Automaton has 14599 states and 21043 transitions. Word has length 230 [2022-11-19 06:47:28,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:47:28,480 INFO L495 AbstractCegarLoop]: Abstraction has 14599 states and 21043 transitions. [2022-11-19 06:47:28,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-19 06:47:28,480 INFO L276 IsEmpty]: Start isEmpty. Operand 14599 states and 21043 transitions. [2022-11-19 06:47:28,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-11-19 06:47:28,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:28,487 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:47:28,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-19 06:47:28,488 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_assert_linux_kernel_locking_mutex__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 32 more)] === [2022-11-19 06:47:28,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:28,488 INFO L85 PathProgramCache]: Analyzing trace with hash 653524321, now seen corresponding path program 1 times [2022-11-19 06:47:28,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:28,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82720903] [2022-11-19 06:47:28,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:28,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:29,677 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-11-19 06:47:29,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:29,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82720903] [2022-11-19 06:47:29,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82720903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:47:29,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:47:29,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:47:29,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832552064] [2022-11-19 06:47:29,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:47:29,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:47:29,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:47:29,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:47:29,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:47:29,681 INFO L87 Difference]: Start difference. First operand 14599 states and 21043 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) [2022-11-19 06:47:39,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:41,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:43,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:45,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:45,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:47:45,387 INFO L93 Difference]: Finished difference Result 14601 states and 21044 transitions. [2022-11-19 06:47:45,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:47:45,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) Word has length 241 [2022-11-19 06:47:45,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:47:45,442 INFO L225 Difference]: With dead ends: 14601 [2022-11-19 06:47:45,443 INFO L226 Difference]: Without dead ends: 14599 [2022-11-19 06:47:45,451 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 [2022-11-19 06:47:45,452 INFO L413 NwaCegarLoop]: 4509 mSDtfsCounter, 280 mSDsluCounter, 13273 mSDsCounter, 0 mSdLazyCounter, 1895 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 17782 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1895 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:47:45,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 17782 Invalid, 1898 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1895 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2022-11-19 06:47:45,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14599 states. [2022-11-19 06:47:47,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14599 to 14599. [2022-11-19 06:47:47,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14599 states, 8560 states have (on average 1.2643691588785047) internal successors, (10823), 8730 states have internal predecessors, (10823), 4763 states have call successors, (4763), 1267 states have call predecessors, (4763), 1272 states have return successors, (5451), 4724 states have call predecessors, (5451), 4761 states have call successors, (5451) [2022-11-19 06:47:47,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14599 states to 14599 states and 21037 transitions. [2022-11-19 06:47:47,845 INFO L78 Accepts]: Start accepts. Automaton has 14599 states and 21037 transitions. Word has length 241 [2022-11-19 06:47:47,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:47:47,846 INFO L495 AbstractCegarLoop]: Abstraction has 14599 states and 21037 transitions. [2022-11-19 06:47:47,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) [2022-11-19 06:47:47,846 INFO L276 IsEmpty]: Start isEmpty. Operand 14599 states and 21037 transitions. [2022-11-19 06:47:47,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-19 06:47:47,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:47,854 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:47:47,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-19 06:47:47,855 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_assert_linux_kernel_locking_mutex__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 32 more)] === [2022-11-19 06:47:47,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:47,855 INFO L85 PathProgramCache]: Analyzing trace with hash 521913319, now seen corresponding path program 1 times [2022-11-19 06:47:47,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:47,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674495972] [2022-11-19 06:47:47,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:47,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:50,559 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-19 06:47:50,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:50,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674495972] [2022-11-19 06:47:50,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674495972] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:47:50,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975159653] [2022-11-19 06:47:50,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:50,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:47:50,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:47:50,564 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:47:50,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7ffbb-b654-4a0e-aa28-0d9234c0b565/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:47:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:52,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 3684 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-19 06:47:52,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:47:52,861 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-11-19 06:47:52,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:47:53,577 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-19 06:47:53,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975159653] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:47:53,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1581835800] [2022-11-19 06:47:53,604 INFO L159 IcfgInterpreter]: Started Sifa with 151 locations of interest [2022-11-19 06:47:53,605 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:47:53,609 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:47:53,615 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:47:53,616 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:48:23,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:48:23,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7