./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 b5237d83 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_f812b2ba-7968-41b3-896b-16469ac16447/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/bin/utaipan-g80aRyZoba/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_f812b2ba-7968-41b3-896b-16469ac16447/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/bin/utaipan-g80aRyZoba --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-b5237d8 [2022-11-22 00:16:38,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:16:38,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:16:38,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:16:38,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:16:38,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:16:38,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:16:38,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:16:38,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:16:38,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:16:38,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:16:38,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:16:38,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:16:38,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:16:38,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:16:38,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:16:38,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:16:38,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:16:38,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:16:38,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:16:38,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:16:39,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:16:39,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:16:39,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:16:39,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:16:39,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:16:39,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:16:39,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:16:39,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:16:39,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:16:39,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:16:39,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:16:39,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:16:39,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:16:39,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:16:39,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:16:39,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:16:39,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:16:39,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:16:39,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:16:39,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:16:39,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 00:16:39,050 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:16:39,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:16:39,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:16:39,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:16:39,051 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:16:39,051 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:16:39,052 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:16:39,052 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:16:39,052 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:16:39,052 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:16:39,052 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:16:39,053 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:16:39,053 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:16:39,053 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:16:39,053 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:16:39,053 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:16:39,053 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:16:39,054 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:16:39,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:16:39,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:16:39,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:16:39,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:16:39,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:16:39,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:16:39,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:16:39,061 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:16:39,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:16:39,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:16:39,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:16:39,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:16:39,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:16:39,063 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:16:39,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:16:39,063 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:16:39,063 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:16:39,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:16:39,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:16:39,065 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:16:39,065 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_f812b2ba-7968-41b3-896b-16469ac16447/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0073111a5c7b021bc76098b9f15e3306b34538df9d4af329dd19631f32f125 [2022-11-22 00:16:39,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:16:39,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:16:39,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:16:39,406 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:16:39,407 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:16:39,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2022-11-22 00:16:42,543 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:16:43,456 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:16:43,457 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2022-11-22 00:16:43,536 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/bin/utaipan-g80aRyZoba/data/2334935a3/3b02752013e04032ad1b3a149b8b0c8d/FLAG5d6f9745d [2022-11-22 00:16:43,554 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/bin/utaipan-g80aRyZoba/data/2334935a3/3b02752013e04032ad1b3a149b8b0c8d [2022-11-22 00:16:43,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:16:43,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:16:43,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:16:43,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:16:43,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:16:43,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:16:43" (1/1) ... [2022-11-22 00:16:43,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58b553a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:16:43, skipping insertion in model container [2022-11-22 00:16:43,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:16:43" (1/1) ... [2022-11-22 00:16:43,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:16:43,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:16:51,999 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659699,659712] [2022-11-22 00:16:52,003 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659844,659857] [2022-11-22 00:16:52,004 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659990,660003] [2022-11-22 00:16:52,006 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660155,660168] [2022-11-22 00:16:52,006 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660313,660326] [2022-11-22 00:16:52,007 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660471,660484] [2022-11-22 00:16:52,007 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660629,660642] [2022-11-22 00:16:52,008 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660789,660802] [2022-11-22 00:16:52,008 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660948,660961] [2022-11-22 00:16:52,008 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661087,661100] [2022-11-22 00:16:52,009 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661229,661242] [2022-11-22 00:16:52,009 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661378,661391] [2022-11-22 00:16:52,010 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661517,661530] [2022-11-22 00:16:52,010 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661672,661685] [2022-11-22 00:16:52,011 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661832,661845] [2022-11-22 00:16:52,011 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661983,661996] [2022-11-22 00:16:52,012 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662134,662147] [2022-11-22 00:16:52,012 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662286,662299] [2022-11-22 00:16:52,013 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662435,662448] [2022-11-22 00:16:52,013 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662583,662596] [2022-11-22 00:16:52,014 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662740,662753] [2022-11-22 00:16:52,014 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662889,662902] [2022-11-22 00:16:52,015 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663045,663058] [2022-11-22 00:16:52,015 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663198,663211] [2022-11-22 00:16:52,016 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663344,663357] [2022-11-22 00:16:52,016 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663487,663500] [2022-11-22 00:16:52,016 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663639,663652] [2022-11-22 00:16:52,017 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663785,663798] [2022-11-22 00:16:52,017 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663930,663943] [2022-11-22 00:16:52,018 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664084,664097] [2022-11-22 00:16:52,018 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664235,664248] [2022-11-22 00:16:52,019 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664390,664403] [2022-11-22 00:16:52,019 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664542,664555] [2022-11-22 00:16:52,020 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664697,664710] [2022-11-22 00:16:52,020 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664861,664874] [2022-11-22 00:16:52,021 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665017,665030] [2022-11-22 00:16:52,021 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665181,665194] [2022-11-22 00:16:52,022 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665323,665336] [2022-11-22 00:16:52,022 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665481,665494] [2022-11-22 00:16:52,023 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665648,665661] [2022-11-22 00:16:52,023 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665807,665820] [2022-11-22 00:16:52,024 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665966,665979] [2022-11-22 00:16:52,024 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666115,666128] [2022-11-22 00:16:52,025 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666262,666275] [2022-11-22 00:16:52,025 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666401,666414] [2022-11-22 00:16:52,026 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666564,666577] [2022-11-22 00:16:52,026 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666730,666743] [2022-11-22 00:16:52,027 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666894,666907] [2022-11-22 00:16:52,027 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667059,667072] [2022-11-22 00:16:52,028 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667224,667237] [2022-11-22 00:16:52,028 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667390,667403] [2022-11-22 00:16:52,028 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667555,667568] [2022-11-22 00:16:52,029 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667722,667735] [2022-11-22 00:16:52,029 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667882,667895] [2022-11-22 00:16:52,030 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668044,668057] [2022-11-22 00:16:52,030 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668203,668216] [2022-11-22 00:16:52,031 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668349,668362] [2022-11-22 00:16:52,031 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668492,668505] [2022-11-22 00:16:52,032 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668636,668649] [2022-11-22 00:16:52,032 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668779,668792] [2022-11-22 00:16:52,033 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668923,668936] [2022-11-22 00:16:52,033 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669064,669077] [2022-11-22 00:16:52,033 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669202,669215] [2022-11-22 00:16:52,034 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669360,669373] [2022-11-22 00:16:52,034 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669519,669532] [2022-11-22 00:16:52,035 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669675,669688] [2022-11-22 00:16:52,035 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669824,669837] [2022-11-22 00:16:52,036 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669976,669989] [2022-11-22 00:16:52,036 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670127,670140] [2022-11-22 00:16:52,037 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670276,670289] [2022-11-22 00:16:52,037 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670428,670441] [2022-11-22 00:16:52,037 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670576,670589] [2022-11-22 00:16:52,038 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670729,670742] [2022-11-22 00:16:52,038 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670880,670893] [2022-11-22 00:16:52,039 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671030,671043] [2022-11-22 00:16:52,039 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671177,671190] [2022-11-22 00:16:52,040 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671328,671341] [2022-11-22 00:16:52,040 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671479,671492] [2022-11-22 00:16:52,041 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671627,671640] [2022-11-22 00:16:52,041 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671793,671806] [2022-11-22 00:16:52,042 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671962,671975] [2022-11-22 00:16:52,042 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672129,672142] [2022-11-22 00:16:52,043 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672297,672310] [2022-11-22 00:16:52,043 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672447,672460] [2022-11-22 00:16:52,044 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672594,672607] [2022-11-22 00:16:52,044 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672755,672768] [2022-11-22 00:16:52,044 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672925,672938] [2022-11-22 00:16:52,045 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[673087,673100] [2022-11-22 00:16:52,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:16:52,129 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:16:52,977 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659699,659712] [2022-11-22 00:16:52,978 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659844,659857] [2022-11-22 00:16:52,979 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659990,660003] [2022-11-22 00:16:52,981 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660155,660168] [2022-11-22 00:16:52,982 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660313,660326] [2022-11-22 00:16:52,983 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660471,660484] [2022-11-22 00:16:52,984 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660629,660642] [2022-11-22 00:16:52,984 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660789,660802] [2022-11-22 00:16:52,985 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660948,660961] [2022-11-22 00:16:52,985 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661087,661100] [2022-11-22 00:16:52,985 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661229,661242] [2022-11-22 00:16:52,986 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661378,661391] [2022-11-22 00:16:52,986 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661517,661530] [2022-11-22 00:16:52,987 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661672,661685] [2022-11-22 00:16:52,987 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661832,661845] [2022-11-22 00:16:52,988 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661983,661996] [2022-11-22 00:16:52,989 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662134,662147] [2022-11-22 00:16:52,989 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662286,662299] [2022-11-22 00:16:52,990 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662435,662448] [2022-11-22 00:16:52,991 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662583,662596] [2022-11-22 00:16:52,991 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662740,662753] [2022-11-22 00:16:52,992 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662889,662902] [2022-11-22 00:16:52,992 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663045,663058] [2022-11-22 00:16:52,993 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663198,663211] [2022-11-22 00:16:52,994 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663344,663357] [2022-11-22 00:16:52,995 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663487,663500] [2022-11-22 00:16:52,995 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663639,663652] [2022-11-22 00:16:52,996 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663785,663798] [2022-11-22 00:16:52,996 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663930,663943] [2022-11-22 00:16:52,997 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664084,664097] [2022-11-22 00:16:52,997 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664235,664248] [2022-11-22 00:16:52,998 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664390,664403] [2022-11-22 00:16:52,998 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664542,664555] [2022-11-22 00:16:52,999 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664697,664710] [2022-11-22 00:16:52,999 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664861,664874] [2022-11-22 00:16:53,000 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665017,665030] [2022-11-22 00:16:53,000 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665181,665194] [2022-11-22 00:16:53,001 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665323,665336] [2022-11-22 00:16:53,002 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665481,665494] [2022-11-22 00:16:53,002 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665648,665661] [2022-11-22 00:16:53,003 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665807,665820] [2022-11-22 00:16:53,004 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665966,665979] [2022-11-22 00:16:53,004 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666115,666128] [2022-11-22 00:16:53,005 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666262,666275] [2022-11-22 00:16:53,005 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666401,666414] [2022-11-22 00:16:53,006 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666564,666577] [2022-11-22 00:16:53,006 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666730,666743] [2022-11-22 00:16:53,006 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666894,666907] [2022-11-22 00:16:53,007 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667059,667072] [2022-11-22 00:16:53,007 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667224,667237] [2022-11-22 00:16:53,008 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667390,667403] [2022-11-22 00:16:53,008 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667555,667568] [2022-11-22 00:16:53,009 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667722,667735] [2022-11-22 00:16:53,010 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667882,667895] [2022-11-22 00:16:53,011 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668044,668057] [2022-11-22 00:16:53,012 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668203,668216] [2022-11-22 00:16:53,017 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668349,668362] [2022-11-22 00:16:53,018 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668492,668505] [2022-11-22 00:16:53,019 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668636,668649] [2022-11-22 00:16:53,020 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668779,668792] [2022-11-22 00:16:53,020 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668923,668936] [2022-11-22 00:16:53,022 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669064,669077] [2022-11-22 00:16:53,023 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669202,669215] [2022-11-22 00:16:53,024 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669360,669373] [2022-11-22 00:16:53,029 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669519,669532] [2022-11-22 00:16:53,033 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669675,669688] [2022-11-22 00:16:53,034 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669824,669837] [2022-11-22 00:16:53,034 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669976,669989] [2022-11-22 00:16:53,035 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670127,670140] [2022-11-22 00:16:53,035 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670276,670289] [2022-11-22 00:16:53,036 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670428,670441] [2022-11-22 00:16:53,036 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670576,670589] [2022-11-22 00:16:53,036 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670729,670742] [2022-11-22 00:16:53,038 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670880,670893] [2022-11-22 00:16:53,038 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671030,671043] [2022-11-22 00:16:53,038 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671177,671190] [2022-11-22 00:16:53,039 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671328,671341] [2022-11-22 00:16:53,039 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671479,671492] [2022-11-22 00:16:53,041 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671627,671640] [2022-11-22 00:16:53,042 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671793,671806] [2022-11-22 00:16:53,042 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671962,671975] [2022-11-22 00:16:53,042 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672129,672142] [2022-11-22 00:16:53,043 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672297,672310] [2022-11-22 00:16:53,043 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672447,672460] [2022-11-22 00:16:53,044 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672594,672607] [2022-11-22 00:16:53,045 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672755,672768] [2022-11-22 00:16:53,045 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672925,672938] [2022-11-22 00:16:53,046 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[673087,673100] [2022-11-22 00:16:53,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:16:53,399 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:16:53,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:16:53 WrapperNode [2022-11-22 00:16:53,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:16:53,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:16:53,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:16:53,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:16:53,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:16:53" (1/1) ... [2022-11-22 00:16:53,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:16:53" (1/1) ... [2022-11-22 00:16:54,085 INFO L138 Inliner]: procedures = 981, calls = 6465, calls flagged for inlining = 457, calls inlined = 329, statements flattened = 12997 [2022-11-22 00:16:54,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:16:54,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:16:54,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:16:54,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:16:54,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:16:53" (1/1) ... [2022-11-22 00:16:54,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:16:53" (1/1) ... [2022-11-22 00:16:54,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:16:53" (1/1) ... [2022-11-22 00:16:54,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:16:53" (1/1) ... [2022-11-22 00:16:54,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:16:53" (1/1) ... [2022-11-22 00:16:54,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:16:53" (1/1) ... [2022-11-22 00:16:54,539 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:16:53" (1/1) ... [2022-11-22 00:16:54,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:16:53" (1/1) ... [2022-11-22 00:16:54,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:16:54,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:16:54,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:16:54,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:16:54,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:16:53" (1/1) ... [2022-11-22 00:16:54,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:16:54,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:16:54,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:16:54,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f812b2ba-7968-41b3-896b-16469ac16447/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:16:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2022-11-22 00:16:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2022-11-22 00:16:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-22 00:16:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2022-11-22 00:16:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2022-11-22 00:16:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_DeleteNSEntry [2022-11-22 00:16:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_DeleteNSEntry [2022-11-22 00:16:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure ncp__io2vol [2022-11-22 00:16:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp__io2vol [2022-11-22 00:16:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-22 00:16:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-22 00:16:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_dates [2022-11-22 00:16:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_dates [2022-11-22 00:16:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure __ncp_start_request [2022-11-22 00:16:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncp_start_request [2022-11-22 00:16:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-22 00:16:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-22 00:16:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 00:16:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 00:16:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_info [2022-11-22 00:16:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_info [2022-11-22 00:16:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_write [2022-11-22 00:16:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_write [2022-11-22 00:16:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-11-22 00:16:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-11-22 00:16:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure sign_packet [2022-11-22 00:16:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure sign_packet [2022-11-22 00:16:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_mmap_fault [2022-11-22 00:16:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_mmap_fault [2022-11-22 00:16:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_nfs_info [2022-11-22 00:16:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_nfs_info [2022-11-22 00:16:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure grab_cache_page [2022-11-22 00:16:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure grab_cache_page [2022-11-22 00:16:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___1 [2022-11-22 00:16:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___1 [2022-11-22 00:16:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___0 [2022-11-22 00:16:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___0 [2022-11-22 00:16:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_make_open [2022-11-22 00:16:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_make_open [2022-11-22 00:16:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 00:16:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 00:16:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-11-22 00:16:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-11-22 00:16:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-22 00:16:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-22 00:16:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-22 00:16:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-22 00:16:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 00:16:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 00:16:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-22 00:16:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-22 00:16:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:16:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_ioctl [2022-11-22 00:16:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_ioctl [2022-11-22 00:16:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-22 00:16:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-22 00:16:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2022-11-22 00:16:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2022-11-22 00:16:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure iunique [2022-11-22 00:16:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure iunique [2022-11-22 00:16:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_le16 [2022-11-22 00:16:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_le16 [2022-11-22 00:16:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 00:16:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 00:16:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_statfs [2022-11-22 00:16:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_statfs [2022-11-22 00:16:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure assert_server_locked [2022-11-22 00:16:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_server_locked [2022-11-22 00:16:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-22 00:16:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-22 00:16:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_write_kernel [2022-11-22 00:16:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_write_kernel [2022-11-22 00:16:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-22 00:16:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-22 00:16:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_byte [2022-11-22 00:16:54,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_byte [2022-11-22 00:16:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:16:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-22 00:16:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-22 00:16:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~wchar_t~0~X~$Pointer$~X~int~TO~int [2022-11-22 00:16:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~wchar_t~0~X~$Pointer$~X~int~TO~int [2022-11-22 00:16:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_write [2022-11-22 00:16:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_write [2022-11-22 00:16:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-22 00:16:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-22 00:16:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:16:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_destroy_inode [2022-11-22 00:16:54,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_destroy_inode [2022-11-22 00:16:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_attrs [2022-11-22 00:16:54,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_attrs [2022-11-22 00:16:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 00:16:54,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 00:16:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:16:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 00:16:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_destroy [2022-11-22 00:16:54,764 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_destroy [2022-11-22 00:16:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-22 00:16:54,764 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-22 00:16:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_get_volume_root [2022-11-22 00:16:54,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_get_volume_root [2022-11-22 00:16:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-22 00:16:54,764 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-22 00:16:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ncp_server [2022-11-22 00:16:54,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ncp_server [2022-11-22 00:16:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure unload_nls [2022-11-22 00:16:54,765 INFO L138 BoogieDeclarations]: Found implementation of procedure unload_nls [2022-11-22 00:16:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_request [2022-11-22 00:16:54,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_request [2022-11-22 00:16:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_date_dos2unix [2022-11-22 00:16:54,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_date_dos2unix [2022-11-22 00:16:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_new_dentry [2022-11-22 00:16:54,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_new_dentry [2022-11-22 00:16:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2022-11-22 00:16:54,766 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2022-11-22 00:16:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 00:16:54,766 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 00:16:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure nls_tolower [2022-11-22 00:16:54,766 INFO L138 BoogieDeclarations]: Found implementation of procedure nls_tolower [2022-11-22 00:16:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:16:54,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:16:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 00:16:54,767 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 00:16:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_mutex_of_ncp_inode_info [2022-11-22 00:16:54,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_mutex_of_ncp_inode_info [2022-11-22 00:16:54,768 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2022-11-22 00:16:54,768 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2022-11-22 00:16:54,768 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-22 00:16:54,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-22 00:16:54,768 INFO L130 BoogieDeclarations]: Found specification of procedure dir_emit [2022-11-22 00:16:54,768 INFO L138 BoogieDeclarations]: Found implementation of procedure dir_emit [2022-11-22 00:16:54,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 00:16:54,768 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2022-11-22 00:16:54,768 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2022-11-22 00:16:54,769 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-22 00:16:54,769 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-22 00:16:54,769 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-22 00:16:54,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_146 [2022-11-22 00:16:54,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_146 [2022-11-22 00:16:54,769 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_rmdir [2022-11-22 00:16:54,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_rmdir [2022-11-22 00:16:54,769 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-22 00:16:54,769 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-22 00:16:54,769 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_read [2022-11-22 00:16:54,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_read [2022-11-22 00:16:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2022-11-22 00:16:54,770 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2022-11-22 00:16:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_i_mutex_of_inode [2022-11-22 00:16:54,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_i_mutex_of_inode [2022-11-22 00:16:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_compat_ioctl [2022-11-22 00:16:54,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_compat_ioctl [2022-11-22 00:16:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure WSET_LH [2022-11-22 00:16:54,770 INFO L138 BoogieDeclarations]: Found implementation of procedure WSET_LH [2022-11-22 00:16:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 00:16:54,771 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 00:16:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure setattr_copy [2022-11-22 00:16:54,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setattr_copy [2022-11-22 00:16:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-22 00:16:54,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-22 00:16:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2022-11-22 00:16:54,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2022-11-22 00:16:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-22 00:16:54,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-22 00:16:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_data [2022-11-22 00:16:54,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_data [2022-11-22 00:16:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:16:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 00:16:54,772 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 00:16:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-22 00:16:54,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-22 00:16:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:16:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-22 00:16:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-22 00:16:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_d_prune [2022-11-22 00:16:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_d_prune [2022-11-22 00:16:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2022-11-22 00:16:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2022-11-22 00:16:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_byte [2022-11-22 00:16:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_byte [2022-11-22 00:16:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_header [2022-11-22 00:16:54,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_header [2022-11-22 00:16:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure pagecache_get_page [2022-11-22 00:16:54,774 INFO L138 BoogieDeclarations]: Found implementation of procedure pagecache_get_page [2022-11-22 00:16:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_mem [2022-11-22 00:16:54,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_mem [2022-11-22 00:16:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure kill_anon_super [2022-11-22 00:16:54,774 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_anon_super [2022-11-22 00:16:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_root_setup_lock_of_ncp_server [2022-11-22 00:16:54,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_root_setup_lock_of_ncp_server [2022-11-22 00:16:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_is_server_root [2022-11-22 00:16:54,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_is_server_root [2022-11-22 00:16:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_is_nfs_extras [2022-11-22 00:16:54,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_is_nfs_extras [2022-11-22 00:16:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_release [2022-11-22 00:16:54,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_release [2022-11-22 00:16:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-22 00:16:54,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-22 00:16:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure ncpdgram_send [2022-11-22 00:16:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ncpdgram_send [2022-11-22 00:16:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-22 00:16:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-22 00:16:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-22 00:16:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-22 00:16:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_inode_close [2022-11-22 00:16:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_inode_close [2022-11-22 00:16:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure NCP_FINFO [2022-11-22 00:16:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure NCP_FINFO [2022-11-22 00:16:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure ncp__vol2io [2022-11-22 00:16:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp__vol2io [2022-11-22 00:16:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_creq_mutex_of_NOT_ARG_SIGN [2022-11-22 00:16:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_creq_mutex_of_NOT_ARG_SIGN [2022-11-22 00:16:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_RenameNSEntry [2022-11-22 00:16:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_RenameNSEntry [2022-11-22 00:16:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_i_mutex_of_inode [2022-11-22 00:16:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_i_mutex_of_inode [2022-11-22 00:16:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-11-22 00:16:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-11-22 00:16:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_notify_change [2022-11-22 00:16:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_notify_change [2022-11-22 00:16:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_75 [2022-11-22 00:16:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_75 [2022-11-22 00:16:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_dword [2022-11-22 00:16:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_dword [2022-11-22 00:16:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 00:16:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 00:16:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:16:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure mark_inode_dirty [2022-11-22 00:16:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_inode_dirty [2022-11-22 00:16:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_inode [2022-11-22 00:16:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_inode [2022-11-22 00:16:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_del_file_or_subdir [2022-11-22 00:16:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_del_file_or_subdir [2022-11-22 00:16:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 00:16:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 00:16:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_create_new [2022-11-22 00:16:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_create_new [2022-11-22 00:16:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-22 00:16:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-22 00:16:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-22 00:16:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-22 00:16:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_request [2022-11-22 00:16:54,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_request [2022-11-22 00:16:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure PageUptodate [2022-11-22 00:16:54,785 INFO L138 BoogieDeclarations]: Found implementation of procedure PageUptodate [2022-11-22 00:16:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-22 00:16:54,785 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-22 00:16:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2022-11-22 00:16:54,785 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2022-11-22 00:16:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure NCP_SBP [2022-11-22 00:16:54,786 INFO L138 BoogieDeclarations]: Found implementation of procedure NCP_SBP [2022-11-22 00:16:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2022-11-22 00:16:54,786 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2022-11-22 00:16:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_hash_dentry [2022-11-22 00:16:54,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_hash_dentry [2022-11-22 00:16:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure load_nls_default [2022-11-22 00:16:54,786 INFO L138 BoogieDeclarations]: Found implementation of procedure load_nls_default [2022-11-22 00:16:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-22 00:16:54,786 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-22 00:16:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_open_create_file_or_subdir [2022-11-22 00:16:54,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_open_create_file_or_subdir [2022-11-22 00:16:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-22 00:16:54,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-22 00:16:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-22 00:16:54,787 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-22 00:16:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 00:16:54,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 00:16:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure WVAL_LH___0 [2022-11-22 00:16:54,787 INFO L138 BoogieDeclarations]: Found implementation of procedure WVAL_LH___0 [2022-11-22 00:16:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure d_rehash [2022-11-22 00:16:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure d_rehash [2022-11-22 00:16:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_evict_inode [2022-11-22 00:16:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_evict_inode [2022-11-22 00:16:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_show_options [2022-11-22 00:16:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_show_options [2022-11-22 00:16:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-22 00:16:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-22 00:16:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-22 00:16:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-22 00:16:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure generic_file_llseek [2022-11-22 00:16:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_file_llseek [2022-11-22 00:16:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_before_release_sock [2022-11-22 00:16:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_before_release_sock [2022-11-22 00:16:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_be16 [2022-11-22 00:16:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_be16 [2022-11-22 00:16:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_make_closed [2022-11-22 00:16:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_make_closed [2022-11-22 00:16:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 00:16:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 00:16:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_del_file_or_subdir2 [2022-11-22 00:16:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_del_file_or_subdir2 [2022-11-22 00:16:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_modify_nfs_info [2022-11-22 00:16:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_modify_nfs_info [2022-11-22 00:16:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_case_sensitive [2022-11-22 00:16:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_case_sensitive [2022-11-22 00:16:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 00:16:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 00:16:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-22 00:16:54,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-22 00:16:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_inodecache [2022-11-22 00:16:54,791 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_inodecache [2022-11-22 00:16:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:16:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~~loff_t~0~X~~u64~0~X~int~TO~int [2022-11-22 00:16:54,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~~loff_t~0~X~~u64~0~X~int~TO~int [2022-11-22 00:16:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure __ncp_abort_request [2022-11-22 00:16:54,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncp_abort_request [2022-11-22 00:16:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2022-11-22 00:16:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2022-11-22 00:16:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2022-11-22 00:16:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_word [2022-11-22 00:16:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_word [2022-11-22 00:16:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_dword_lh [2022-11-22 00:16:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_dword_lh [2022-11-22 00:16:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 00:16:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_do_request [2022-11-22 00:16:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_do_request [2022-11-22 00:16:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-22 00:16:54,793 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-22 00:16:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_inode_close___3 [2022-11-22 00:16:54,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_inode_close___3 [2022-11-22 00:16:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 00:16:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_date_unix2dos [2022-11-22 00:16:54,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_date_unix2dos [2022-11-22 00:16:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-22 00:16:54,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-22 00:16:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-22 00:16:54,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-22 00:16:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 00:16:54,794 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 00:16:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_ren_or_mov_file_or_subdir [2022-11-22 00:16:54,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_ren_or_mov_file_or_subdir [2022-11-22 00:16:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-22 00:16:54,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-22 00:16:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-11-22 00:16:54,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-11-22 00:16:54,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_creq_mutex_of_NOT_ARG_SIGN [2022-11-22 00:16:54,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_creq_mutex_of_NOT_ARG_SIGN [2022-11-22 00:16:54,795 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_request2 [2022-11-22 00:16:54,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_request2 [2022-11-22 00:16:54,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 00:16:54,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 00:16:54,795 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_request_s [2022-11-22 00:16:54,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_request_s [2022-11-22 00:16:54,795 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-22 00:16:54,796 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-22 00:16:54,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-22 00:16:54,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-22 00:16:54,796 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_lock_server [2022-11-22 00:16:54,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_lock_server [2022-11-22 00:16:54,796 INFO L130 BoogieDeclarations]: Found specification of procedure DSET_LH [2022-11-22 00:16:54,796 INFO L138 BoogieDeclarations]: Found implementation of procedure DSET_LH [2022-11-22 00:16:54,796 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_close_file [2022-11-22 00:16:54,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_close_file [2022-11-22 00:16:54,796 INFO L130 BoogieDeclarations]: Found specification of procedure nwsign [2022-11-22 00:16:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure nwsign [2022-11-22 00:16:54,797 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-11-22 00:16:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-11-22 00:16:54,797 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_known_namespace [2022-11-22 00:16:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_known_namespace [2022-11-22 00:16:54,797 INFO L130 BoogieDeclarations]: Found specification of procedure load_nls [2022-11-22 00:16:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure load_nls [2022-11-22 00:16:54,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_sock__double_release [2022-11-22 00:16:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_sock__double_release [2022-11-22 00:16:54,798 INFO L130 BoogieDeclarations]: Found specification of procedure DVAL_LH___0 [2022-11-22 00:16:54,798 INFO L138 BoogieDeclarations]: Found implementation of procedure DVAL_LH___0 [2022-11-22 00:16:54,798 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_readdir [2022-11-22 00:16:54,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_readdir [2022-11-22 00:16:54,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-22 00:16:54,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-22 00:16:54,798 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-22 00:16:54,798 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-22 00:16:54,798 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_read_kernel [2022-11-22 00:16:54,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_read_kernel [2022-11-22 00:16:54,799 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-22 00:16:54,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-22 00:16:54,799 INFO L130 BoogieDeclarations]: Found specification of procedure rol32 [2022-11-22 00:16:54,799 INFO L138 BoogieDeclarations]: Found implementation of procedure rol32 [2022-11-22 00:16:54,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 00:16:54,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 00:16:54,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 00:16:54,799 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-22 00:16:54,799 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-22 00:16:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 00:16:54,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 00:16:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_disconnect [2022-11-22 00:16:54,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_disconnect [2022-11-22 00:16:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure inode_permission [2022-11-22 00:16:54,800 INFO L138 BoogieDeclarations]: Found implementation of procedure inode_permission [2022-11-22 00:16:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_extract_file_info [2022-11-22 00:16:54,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_extract_file_info [2022-11-22 00:16:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_modify_file_or_subdir_dos_info_path [2022-11-22 00:16:54,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_modify_file_or_subdir_dos_info_path [2022-11-22 00:16:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_put_super [2022-11-22 00:16:54,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_put_super [2022-11-22 00:16:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_lookup_volume [2022-11-22 00:16:54,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_lookup_volume [2022-11-22 00:16:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure __ncptcp_try_send [2022-11-22 00:16:54,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncptcp_try_send [2022-11-22 00:16:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-11-22 00:16:54,801 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-11-22 00:16:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 00:16:54,802 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 00:16:54,802 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_mmap [2022-11-22 00:16:54,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_mmap [2022-11-22 00:16:54,802 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_be16 [2022-11-22 00:16:54,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_be16 [2022-11-22 00:16:54,802 INFO L130 BoogieDeclarations]: Found specification of procedure do_send [2022-11-22 00:16:54,802 INFO L138 BoogieDeclarations]: Found implementation of procedure do_send [2022-11-22 00:16:54,802 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-22 00:16:54,802 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-22 00:16:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_pstring [2022-11-22 00:16:54,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_pstring [2022-11-22 00:16:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_root_setup_lock_of_ncp_server [2022-11-22 00:16:54,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_root_setup_lock_of_ncp_server [2022-11-22 00:16:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-11-22 00:16:54,803 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-11-22 00:16:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_mtime [2022-11-22 00:16:54,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_mtime [2022-11-22 00:16:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_unlink [2022-11-22 00:16:54,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_unlink [2022-11-22 00:16:54,804 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_dword [2022-11-22 00:16:54,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_dword [2022-11-22 00:16:54,804 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-11-22 00:16:54,804 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-11-22 00:16:54,804 INFO L130 BoogieDeclarations]: Found specification of procedure file_accessed [2022-11-22 00:16:54,804 INFO L138 BoogieDeclarations]: Found implementation of procedure file_accessed [2022-11-22 00:16:54,804 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-11-22 00:16:54,804 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-11-22 00:16:54,804 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_age_dentry [2022-11-22 00:16:54,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_age_dentry [2022-11-22 00:16:54,805 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_handle_path [2022-11-22 00:16:54,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_handle_path [2022-11-22 00:16:54,805 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-22 00:16:54,805 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-22 00:16:54,805 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-22 00:16:54,805 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-22 00:16:54,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:16:54,805 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-22 00:16:54,806 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-22 00:16:54,806 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-22 00:16:54,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-22 00:16:54,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-22 00:16:54,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-22 00:16:54,806 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_iget [2022-11-22 00:16:54,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_iget [2022-11-22 00:16:54,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 00:16:54,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 00:16:54,806 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_fill_cache [2022-11-22 00:16:54,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_fill_cache [2022-11-22 00:16:54,807 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_stop_tasks [2022-11-22 00:16:54,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_stop_tasks [2022-11-22 00:16:54,807 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_dirent [2022-11-22 00:16:54,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_dirent [2022-11-22 00:16:54,807 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_instantiate [2022-11-22 00:16:54,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_instantiate [2022-11-22 00:16:54,807 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_single_volume [2022-11-22 00:16:54,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_single_volume [2022-11-22 00:16:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_symlink_readpage [2022-11-22 00:16:54,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_symlink_readpage [2022-11-22 00:16:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 00:16:54,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 00:16:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure DVAL_LH [2022-11-22 00:16:54,808 INFO L138 BoogieDeclarations]: Found implementation of procedure DVAL_LH [2022-11-22 00:16:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-22 00:16:54,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-22 00:16:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_74 [2022-11-22 00:16:54,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_74 [2022-11-22 00:16:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_dword_lh [2022-11-22 00:16:54,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_dword_lh [2022-11-22 00:16:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-22 00:16:54,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-22 00:16:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 00:16:54,809 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 00:16:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_siglock_of_sighand_struct [2022-11-22 00:16:54,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_siglock_of_sighand_struct [2022-11-22 00:16:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-22 00:16:54,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-22 00:16:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2022-11-22 00:16:54,810 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2022-11-22 00:16:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-11-22 00:16:54,810 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-11-22 00:16:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-22 00:16:54,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-22 00:16:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_req_put [2022-11-22 00:16:54,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_req_put [2022-11-22 00:16:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-22 00:16:54,811 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-22 00:16:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-22 00:16:54,811 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-22 00:16:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_conn_valid [2022-11-22 00:16:54,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_conn_valid [2022-11-22 00:16:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-22 00:16:54,811 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-22 00:16:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 00:16:54,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 00:16:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_be32 [2022-11-22 00:16:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_be32 [2022-11-22 00:16:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_mutex_of_ncp_inode_info [2022-11-22 00:16:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_mutex_of_ncp_inode_info [2022-11-22 00:16:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_finish_request [2022-11-22 00:16:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_finish_request [2022-11-22 00:16:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-22 00:16:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-22 00:16:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_inode2 [2022-11-22 00:16:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_inode2 [2022-11-22 00:16:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-22 00:16:54,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-22 00:16:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:16:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2022-11-22 00:16:54,813 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2022-11-22 00:16:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-22 00:16:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_unlock_server [2022-11-22 00:16:54,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_unlock_server [2022-11-22 00:16:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2022-11-22 00:16:54,813 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2022-11-22 00:16:56,522 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:16:56,527 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:16:56,825 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 00:17:10,245 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:17:12,979 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:17:12,979 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-11-22 00:17:12,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:17:12 BoogieIcfgContainer [2022-11-22 00:17:12,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:17:12,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:17:12,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:17:12,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:17:12,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:16:43" (1/3) ... [2022-11-22 00:17:12,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a86ef3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:17:12, skipping insertion in model container [2022-11-22 00:17:12,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:16:53" (2/3) ... [2022-11-22 00:17:13,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a86ef3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:17:12, skipping insertion in model container [2022-11-22 00:17:13,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:17:12" (3/3) ... [2022-11-22 00:17:13,002 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2022-11-22 00:17:13,023 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:17:13,023 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-11-22 00:17:13,146 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:17:13,152 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;@7ce62a7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:17:13,152 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-11-22 00:17:13,172 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) [2022-11-22 00:17:13,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-22 00:17:13,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:13,184 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] [2022-11-22 00:17:13,185 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)] === [2022-11-22 00:17:13,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:13,192 INFO L85 PathProgramCache]: Analyzing trace with hash -2122548548, now seen corresponding path program 1 times [2022-11-22 00:17:13,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:17:13,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239395457] [2022-11-22 00:17:13,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:13,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:17:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:14,428 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 00:17:14,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:17:14,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239395457] [2022-11-22 00:17:14,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239395457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:17:14,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:17:14,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:17:14,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117590240] [2022-11-22 00:17:14,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:17:14,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:17:14,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:17:14,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:17:14,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:17:14,482 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) [2022-11-22 00:17:20,320 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 [] [2022-11-22 00:17:20,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:17:20,361 INFO L93 Difference]: Finished difference Result 7111 states and 10670 transitions. [2022-11-22 00:17:20,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:17:20,364 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 [2022-11-22 00:17:20,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:17:20,404 INFO L225 Difference]: With dead ends: 7111 [2022-11-22 00:17:20,404 INFO L226 Difference]: Without dead ends: 3534 [2022-11-22 00:17:20,432 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 [2022-11-22 00:17:20,435 INFO L413 NwaCegarLoop]: 4610 mSDtfsCounter, 5082 mSDsluCounter, 4602 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5087 SdHoareTripleChecker+Valid, 9212 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:17:20,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5087 Valid, 9212 Invalid, 949 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-22 00:17:20,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3534 states. [2022-11-22 00:17:20,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3534 to 3532. [2022-11-22 00:17:20,834 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) [2022-11-22 00:17:20,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 5063 transitions. [2022-11-22 00:17:20,874 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 5063 transitions. Word has length 35 [2022-11-22 00:17:20,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:17:20,875 INFO L495 AbstractCegarLoop]: Abstraction has 3532 states and 5063 transitions. [2022-11-22 00:17:20,875 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) [2022-11-22 00:17:20,876 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 5063 transitions. [2022-11-22 00:17:20,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-22 00:17:20,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:20,878 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] [2022-11-22 00:17:20,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:17:20,879 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)] === [2022-11-22 00:17:20,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:20,880 INFO L85 PathProgramCache]: Analyzing trace with hash 349814328, now seen corresponding path program 1 times [2022-11-22 00:17:20,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:17:20,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144231769] [2022-11-22 00:17:20,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:20,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:17:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:21,394 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 00:17:21,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:17:21,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144231769] [2022-11-22 00:17:21,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144231769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:17:21,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:17:21,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:17:21,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542745431] [2022-11-22 00:17:21,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:17:21,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:17:21,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:17:21,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:17:21,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:17:21,398 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) [2022-11-22 00:17:27,808 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 [] [2022-11-22 00:17:27,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:17:27,842 INFO L93 Difference]: Finished difference Result 3534 states and 5066 transitions. [2022-11-22 00:17:27,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:17:27,843 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 [2022-11-22 00:17:27,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:17:27,867 INFO L225 Difference]: With dead ends: 3534 [2022-11-22 00:17:27,867 INFO L226 Difference]: Without dead ends: 3532 [2022-11-22 00:17:27,870 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 [2022-11-22 00:17:27,871 INFO L413 NwaCegarLoop]: 4585 mSDtfsCounter, 5049 mSDsluCounter, 4580 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5054 SdHoareTripleChecker+Valid, 9165 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:17:27,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5054 Valid, 9165 Invalid, 946 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 945 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-22 00:17:27,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3532 states. [2022-11-22 00:17:28,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3532 to 3530. [2022-11-22 00:17:28,063 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) [2022-11-22 00:17:28,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 5061 transitions. [2022-11-22 00:17:28,088 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 5061 transitions. Word has length 37 [2022-11-22 00:17:28,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:17:28,088 INFO L495 AbstractCegarLoop]: Abstraction has 3530 states and 5061 transitions. [2022-11-22 00:17:28,088 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) [2022-11-22 00:17:28,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 5061 transitions. [2022-11-22 00:17:28,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-22 00:17:28,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:28,090 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] [2022-11-22 00:17:28,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:17:28,091 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)] === [2022-11-22 00:17:28,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:28,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1173807411, now seen corresponding path program 1 times [2022-11-22 00:17:28,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:17:28,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817746410] [2022-11-22 00:17:28,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:28,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:17:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:28,564 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 00:17:28,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:17:28,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817746410] [2022-11-22 00:17:28,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817746410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:17:28,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:17:28,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:17:28,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870337994] [2022-11-22 00:17:28,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:17:28,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:17:28,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:17:28,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:17:28,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:17:28,568 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) [2022-11-22 00:17:35,755 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 [] [2022-11-22 00:17:35,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:17:35,784 INFO L93 Difference]: Finished difference Result 3530 states and 5061 transitions. [2022-11-22 00:17:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:17:35,785 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 [2022-11-22 00:17:35,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:17:35,806 INFO L225 Difference]: With dead ends: 3530 [2022-11-22 00:17:35,807 INFO L226 Difference]: Without dead ends: 3528 [2022-11-22 00:17:35,810 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 [2022-11-22 00:17:35,810 INFO L413 NwaCegarLoop]: 4583 mSDtfsCounter, 5042 mSDsluCounter, 4580 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5045 SdHoareTripleChecker+Valid, 9163 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:17:35,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5045 Valid, 9163 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-11-22 00:17:35,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2022-11-22 00:17:36,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3528. [2022-11-22 00:17:36,018 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) [2022-11-22 00:17:36,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 5059 transitions. [2022-11-22 00:17:36,039 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 5059 transitions. Word has length 39 [2022-11-22 00:17:36,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:17:36,039 INFO L495 AbstractCegarLoop]: Abstraction has 3528 states and 5059 transitions. [2022-11-22 00:17:36,039 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) [2022-11-22 00:17:36,040 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 5059 transitions. [2022-11-22 00:17:36,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-22 00:17:36,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:36,049 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] [2022-11-22 00:17:36,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:17:36,050 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)] === [2022-11-22 00:17:36,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:36,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1537924703, now seen corresponding path program 1 times [2022-11-22 00:17:36,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:17:36,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587602680] [2022-11-22 00:17:36,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:36,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:17:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:36,504 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 00:17:36,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:17:36,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587602680] [2022-11-22 00:17:36,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587602680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:17:36,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:17:36,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:17:36,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665753215] [2022-11-22 00:17:36,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:17:36,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:17:36,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:17:36,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:17:36,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:17:36,507 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) [2022-11-22 00:17:41,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:17:43,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:17:43,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:17:43,539 INFO L93 Difference]: Finished difference Result 3528 states and 5059 transitions. [2022-11-22 00:17:43,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:17:43,540 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 [2022-11-22 00:17:43,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:17:43,564 INFO L225 Difference]: With dead ends: 3528 [2022-11-22 00:17:43,564 INFO L226 Difference]: Without dead ends: 3526 [2022-11-22 00:17:43,567 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 [2022-11-22 00:17:43,567 INFO L413 NwaCegarLoop]: 4581 mSDtfsCounter, 5034 mSDsluCounter, 4581 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5037 SdHoareTripleChecker+Valid, 9162 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:17:43,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5037 Valid, 9162 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-11-22 00:17:43,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3526 states. [2022-11-22 00:17:43,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3526 to 3526. [2022-11-22 00:17:43,954 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) [2022-11-22 00:17:43,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 5057 transitions. [2022-11-22 00:17:43,974 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 5057 transitions. Word has length 41 [2022-11-22 00:17:43,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:17:43,975 INFO L495 AbstractCegarLoop]: Abstraction has 3526 states and 5057 transitions. [2022-11-22 00:17:43,976 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) [2022-11-22 00:17:43,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 5057 transitions. [2022-11-22 00:17:43,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-22 00:17:43,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:43,978 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] [2022-11-22 00:17:43,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:17:43,979 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)] === [2022-11-22 00:17:43,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:43,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1578421416, now seen corresponding path program 1 times [2022-11-22 00:17:43,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:17:43,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129803598] [2022-11-22 00:17:43,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:43,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:17:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:44,411 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:17:44,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:17:44,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129803598] [2022-11-22 00:17:44,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129803598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:17:44,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:17:44,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:17:44,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845344582] [2022-11-22 00:17:44,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:17:44,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:17:44,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:17:44,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:17:44,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:17:44,414 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) [2022-11-22 00:17:50,330 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 [] [2022-11-22 00:17:50,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:17:50,354 INFO L93 Difference]: Finished difference Result 3528 states and 5060 transitions. [2022-11-22 00:17:50,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:17:50,356 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 [2022-11-22 00:17:50,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:17:50,379 INFO L225 Difference]: With dead ends: 3528 [2022-11-22 00:17:50,379 INFO L226 Difference]: Without dead ends: 3526 [2022-11-22 00:17:50,382 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 [2022-11-22 00:17:50,383 INFO L413 NwaCegarLoop]: 4579 mSDtfsCounter, 5035 mSDsluCounter, 4580 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5039 SdHoareTripleChecker+Valid, 9159 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:17:50,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5039 Valid, 9159 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-22 00:17:50,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3526 states. [2022-11-22 00:17:50,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3526 to 3524. [2022-11-22 00:17:50,620 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) [2022-11-22 00:17:50,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 5055 transitions. [2022-11-22 00:17:50,642 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 5055 transitions. Word has length 49 [2022-11-22 00:17:50,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:17:50,642 INFO L495 AbstractCegarLoop]: Abstraction has 3524 states and 5055 transitions. [2022-11-22 00:17:50,642 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) [2022-11-22 00:17:50,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 5055 transitions. [2022-11-22 00:17:50,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-22 00:17:50,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:50,645 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] [2022-11-22 00:17:50,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:17:50,645 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)] === [2022-11-22 00:17:50,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:50,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1724294130, now seen corresponding path program 1 times [2022-11-22 00:17:50,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:17:50,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160877152] [2022-11-22 00:17:50,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:50,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:17:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:51,161 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:17:51,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:17:51,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160877152] [2022-11-22 00:17:51,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160877152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:17:51,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:17:51,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:17:51,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175732782] [2022-11-22 00:17:51,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:17:51,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:17:51,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:17:51,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:17:51,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:17:51,164 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) [2022-11-22 00:17:56,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:17:58,922 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 [] [2022-11-22 00:17:58,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:17:58,960 INFO L93 Difference]: Finished difference Result 3524 states and 5055 transitions. [2022-11-22 00:17:58,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:17:58,961 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 [2022-11-22 00:17:58,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:17:58,987 INFO L225 Difference]: With dead ends: 3524 [2022-11-22 00:17:58,987 INFO L226 Difference]: Without dead ends: 3522 [2022-11-22 00:17:58,991 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 [2022-11-22 00:17:58,991 INFO L413 NwaCegarLoop]: 4577 mSDtfsCounter, 5033 mSDsluCounter, 4577 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5035 SdHoareTripleChecker+Valid, 9154 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:17:58,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5035 Valid, 9154 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-11-22 00:17:58,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2022-11-22 00:17:59,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 3522. [2022-11-22 00:17:59,379 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) [2022-11-22 00:17:59,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3522 states to 3522 states and 5053 transitions. [2022-11-22 00:17:59,404 INFO L78 Accepts]: Start accepts. Automaton has 3522 states and 5053 transitions. Word has length 54 [2022-11-22 00:17:59,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:17:59,406 INFO L495 AbstractCegarLoop]: Abstraction has 3522 states and 5053 transitions. [2022-11-22 00:17:59,406 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) [2022-11-22 00:17:59,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3522 states and 5053 transitions. [2022-11-22 00:17:59,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-22 00:17:59,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:59,409 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] [2022-11-22 00:17:59,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:17:59,410 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)] === [2022-11-22 00:17:59,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:59,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1787005869, now seen corresponding path program 1 times [2022-11-22 00:17:59,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:17:59,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897920965] [2022-11-22 00:17:59,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:59,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:17:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:59,823 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:17:59,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:17:59,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897920965] [2022-11-22 00:17:59,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897920965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:17:59,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:17:59,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:17:59,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653197940] [2022-11-22 00:17:59,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:17:59,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:17:59,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:17:59,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:17:59,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:17:59,827 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) [2022-11-22 00:18:05,541 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 [] [2022-11-22 00:18:05,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:05,564 INFO L93 Difference]: Finished difference Result 3524 states and 5056 transitions. [2022-11-22 00:18:05,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:18:05,565 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 [2022-11-22 00:18:05,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:05,587 INFO L225 Difference]: With dead ends: 3524 [2022-11-22 00:18:05,587 INFO L226 Difference]: Without dead ends: 3522 [2022-11-22 00:18:05,590 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 [2022-11-22 00:18:05,590 INFO L413 NwaCegarLoop]: 4575 mSDtfsCounter, 5029 mSDsluCounter, 4576 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5033 SdHoareTripleChecker+Valid, 9151 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:05,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5033 Valid, 9151 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-22 00:18:05,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2022-11-22 00:18:05,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 3520. [2022-11-22 00:18:05,971 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) [2022-11-22 00:18:05,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 5051 transitions. [2022-11-22 00:18:05,988 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 5051 transitions. Word has length 59 [2022-11-22 00:18:05,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:05,989 INFO L495 AbstractCegarLoop]: Abstraction has 3520 states and 5051 transitions. [2022-11-22 00:18:05,989 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) [2022-11-22 00:18:05,989 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 5051 transitions. [2022-11-22 00:18:05,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-22 00:18:05,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:05,991 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] [2022-11-22 00:18:05,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 00:18:05,991 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)] === [2022-11-22 00:18:05,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:05,992 INFO L85 PathProgramCache]: Analyzing trace with hash -2124060192, now seen corresponding path program 1 times [2022-11-22 00:18:05,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:18:05,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798091794] [2022-11-22 00:18:05,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:05,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:18:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:06,358 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:18:06,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:18:06,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798091794] [2022-11-22 00:18:06,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798091794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:06,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:06,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:18:06,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636443566] [2022-11-22 00:18:06,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:06,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:18:06,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:18:06,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:18:06,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:18:06,361 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) [2022-11-22 00:18:12,480 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 [] [2022-11-22 00:18:12,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:12,513 INFO L93 Difference]: Finished difference Result 3522 states and 5054 transitions. [2022-11-22 00:18:12,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:18:12,514 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 [2022-11-22 00:18:12,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:12,534 INFO L225 Difference]: With dead ends: 3522 [2022-11-22 00:18:12,534 INFO L226 Difference]: Without dead ends: 3520 [2022-11-22 00:18:12,537 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 [2022-11-22 00:18:12,538 INFO L413 NwaCegarLoop]: 4573 mSDtfsCounter, 5026 mSDsluCounter, 4574 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5030 SdHoareTripleChecker+Valid, 9147 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:12,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5030 Valid, 9147 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-22 00:18:12,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3520 states. [2022-11-22 00:18:12,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3520 to 3518. [2022-11-22 00:18:12,825 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) [2022-11-22 00:18:12,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3518 states to 3518 states and 5049 transitions. [2022-11-22 00:18:12,844 INFO L78 Accepts]: Start accepts. Automaton has 3518 states and 5049 transitions. Word has length 64 [2022-11-22 00:18:12,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:12,845 INFO L495 AbstractCegarLoop]: Abstraction has 3518 states and 5049 transitions. [2022-11-22 00:18:12,845 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) [2022-11-22 00:18:12,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3518 states and 5049 transitions. [2022-11-22 00:18:12,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-22 00:18:12,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:12,846 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] [2022-11-22 00:18:12,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 00:18:12,847 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)] === [2022-11-22 00:18:12,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:12,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1186259556, now seen corresponding path program 1 times [2022-11-22 00:18:12,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:18:12,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485574609] [2022-11-22 00:18:12,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:12,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:18:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:13,811 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 00:18:13,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:18:13,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485574609] [2022-11-22 00:18:13,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485574609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:13,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:13,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:18:13,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250559411] [2022-11-22 00:18:13,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:13,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:18:13,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:18:13,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:18:13,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:18:13,815 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) [2022-11-22 00:18:22,510 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 [] [2022-11-22 00:18:22,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:22,600 INFO L93 Difference]: Finished difference Result 6233 states and 9147 transitions. [2022-11-22 00:18:22,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:18:22,601 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 [2022-11-22 00:18:22,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:22,637 INFO L225 Difference]: With dead ends: 6233 [2022-11-22 00:18:22,637 INFO L226 Difference]: Without dead ends: 6231 [2022-11-22 00:18:22,642 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 [2022-11-22 00:18:22,643 INFO L413 NwaCegarLoop]: 6051 mSDtfsCounter, 3959 mSDsluCounter, 16783 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3965 SdHoareTripleChecker+Valid, 22834 SdHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:22,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3965 Valid, 22834 Invalid, 2111 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2107 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-11-22 00:18:22,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6231 states. [2022-11-22 00:18:23,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6231 to 6054. [2022-11-22 00:18:23,191 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) [2022-11-22 00:18:23,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6054 states to 6054 states and 8959 transitions. [2022-11-22 00:18:23,229 INFO L78 Accepts]: Start accepts. Automaton has 6054 states and 8959 transitions. Word has length 67 [2022-11-22 00:18:23,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:23,230 INFO L495 AbstractCegarLoop]: Abstraction has 6054 states and 8959 transitions. [2022-11-22 00:18:23,231 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) [2022-11-22 00:18:23,231 INFO L276 IsEmpty]: Start isEmpty. Operand 6054 states and 8959 transitions. [2022-11-22 00:18:23,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-22 00:18:23,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:23,233 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] [2022-11-22 00:18:23,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 00:18:23,234 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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)] === [2022-11-22 00:18:23,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:23,234 INFO L85 PathProgramCache]: Analyzing trace with hash -33553170, now seen corresponding path program 1 times [2022-11-22 00:18:23,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:18:23,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758628547] [2022-11-22 00:18:23,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:23,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:18:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:23,668 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:18:23,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:18:23,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758628547] [2022-11-22 00:18:23,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758628547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:23,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:23,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:18:23,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684246319] [2022-11-22 00:18:23,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:23,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:18:23,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:18:23,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:18:23,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:18:23,671 INFO L87 Difference]: Start difference. First operand 6054 states and 8959 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) [2022-11-22 00:18:29,371 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 [] [2022-11-22 00:18:29,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:29,411 INFO L93 Difference]: Finished difference Result 6056 states and 8962 transitions. [2022-11-22 00:18:29,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:18:29,412 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 [2022-11-22 00:18:29,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:29,442 INFO L225 Difference]: With dead ends: 6056 [2022-11-22 00:18:29,443 INFO L226 Difference]: Without dead ends: 6054 [2022-11-22 00:18:29,448 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 [2022-11-22 00:18:29,448 INFO L413 NwaCegarLoop]: 4571 mSDtfsCounter, 5023 mSDsluCounter, 4572 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5027 SdHoareTripleChecker+Valid, 9143 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:29,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5027 Valid, 9143 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-22 00:18:29,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6054 states. [2022-11-22 00:18:30,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6054 to 6054. [2022-11-22 00:18:30,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6054 states, 3567 states have (on average 1.2943650126156434) internal successors, (4617), 3665 states have internal predecessors, (4617), 2048 states have call successors, (2048), 417 states have call predecessors, (2048), 414 states have return successors, (2295), 2024 states have call predecessors, (2295), 2046 states have call successors, (2295) [2022-11-22 00:18:30,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6054 states to 6054 states and 8960 transitions. [2022-11-22 00:18:30,112 INFO L78 Accepts]: Start accepts. Automaton has 6054 states and 8960 transitions. Word has length 69 [2022-11-22 00:18:30,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:30,113 INFO L495 AbstractCegarLoop]: Abstraction has 6054 states and 8960 transitions. [2022-11-22 00:18:30,113 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) [2022-11-22 00:18:30,113 INFO L276 IsEmpty]: Start isEmpty. Operand 6054 states and 8960 transitions. [2022-11-22 00:18:30,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-22 00:18:30,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:30,116 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, 1, 1, 1] [2022-11-22 00:18:30,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 00:18:30,116 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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)] === [2022-11-22 00:18:30,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:30,117 INFO L85 PathProgramCache]: Analyzing trace with hash -358992852, now seen corresponding path program 1 times [2022-11-22 00:18:30,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:18:30,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740992469] [2022-11-22 00:18:30,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:30,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:18:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:30,878 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 00:18:30,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:18:30,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740992469] [2022-11-22 00:18:30,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740992469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:30,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:30,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:18:30,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370046275] [2022-11-22 00:18:30,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:30,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:18:30,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:18:30,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:18:30,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:18:30,881 INFO L87 Difference]: Start difference. First operand 6054 states and 8960 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, (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) [2022-11-22 00:18:40,287 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 [] [2022-11-22 00:18:40,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:40,367 INFO L93 Difference]: Finished difference Result 6707 states and 9770 transitions. [2022-11-22 00:18:40,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:18:40,367 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, (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 70 [2022-11-22 00:18:40,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:40,402 INFO L225 Difference]: With dead ends: 6707 [2022-11-22 00:18:40,402 INFO L226 Difference]: Without dead ends: 6705 [2022-11-22 00:18:40,408 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 [2022-11-22 00:18:40,409 INFO L413 NwaCegarLoop]: 5020 mSDtfsCounter, 4924 mSDsluCounter, 10743 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4931 SdHoareTripleChecker+Valid, 15763 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:40,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4931 Valid, 15763 Invalid, 1665 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1661 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-11-22 00:18:40,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6705 states. [2022-11-22 00:18:41,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6705 to 6693. [2022-11-22 00:18:41,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6693 states, 3911 states have (on average 1.281513679365891) internal successors, (5012), 4015 states have internal predecessors, (5012), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 509 states have return successors, (2501), 2220 states have call predecessors, (2501), 2246 states have call successors, (2501) [2022-11-22 00:18:41,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6693 states to 6693 states and 9761 transitions. [2022-11-22 00:18:41,147 INFO L78 Accepts]: Start accepts. Automaton has 6693 states and 9761 transitions. Word has length 70 [2022-11-22 00:18:41,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:41,147 INFO L495 AbstractCegarLoop]: Abstraction has 6693 states and 9761 transitions. [2022-11-22 00:18:41,148 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, (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) [2022-11-22 00:18:41,148 INFO L276 IsEmpty]: Start isEmpty. Operand 6693 states and 9761 transitions. [2022-11-22 00:18:41,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-22 00:18:41,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:41,154 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] [2022-11-22 00:18:41,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 00:18:41,154 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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)] === [2022-11-22 00:18:41,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:41,155 INFO L85 PathProgramCache]: Analyzing trace with hash -687431419, now seen corresponding path program 1 times [2022-11-22 00:18:41,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:18:41,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199908060] [2022-11-22 00:18:41,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:41,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:18:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:42,029 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 00:18:42,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:18:42,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199908060] [2022-11-22 00:18:42,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199908060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:42,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:42,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:18:42,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389726165] [2022-11-22 00:18:42,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:42,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:18:42,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:18:42,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:18:42,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:18:42,032 INFO L87 Difference]: Start difference. First operand 6693 states and 9761 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) [2022-11-22 00:18:45,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:18:52,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:18:52,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:52,267 INFO L93 Difference]: Finished difference Result 14359 states and 21211 transitions. [2022-11-22 00:18:52,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:18:52,267 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 [2022-11-22 00:18:52,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:52,312 INFO L225 Difference]: With dead ends: 14359 [2022-11-22 00:18:52,312 INFO L226 Difference]: Without dead ends: 7672 [2022-11-22 00:18:52,351 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 [2022-11-22 00:18:52,352 INFO L413 NwaCegarLoop]: 4810 mSDtfsCounter, 379 mSDsluCounter, 13935 mSDsCounter, 0 mSdLazyCounter, 2156 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 18745 SdHoareTripleChecker+Invalid, 2157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2156 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:52,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 18745 Invalid, 2157 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2156 Invalid, 1 Unknown, 0 Unchecked, 9.4s Time] [2022-11-22 00:18:52,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7672 states. [2022-11-22 00:18:53,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7672 to 6697. [2022-11-22 00:18:53,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6697 states, 3914 states have (on average 1.2812979049565663) internal successors, (5015), 4018 states have internal predecessors, (5015), 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) [2022-11-22 00:18:53,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6697 states to 6697 states and 9782 transitions. [2022-11-22 00:18:53,148 INFO L78 Accepts]: Start accepts. Automaton has 6697 states and 9782 transitions. Word has length 67 [2022-11-22 00:18:53,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:53,149 INFO L495 AbstractCegarLoop]: Abstraction has 6697 states and 9782 transitions. [2022-11-22 00:18:53,149 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) [2022-11-22 00:18:53,149 INFO L276 IsEmpty]: Start isEmpty. Operand 6697 states and 9782 transitions. [2022-11-22 00:18:53,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-22 00:18:53,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:53,151 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] [2022-11-22 00:18:53,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 00:18:53,151 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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)] === [2022-11-22 00:18:53,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:53,152 INFO L85 PathProgramCache]: Analyzing trace with hash -346473505, now seen corresponding path program 1 times [2022-11-22 00:18:53,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:18:53,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835205859] [2022-11-22 00:18:53,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:53,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:18:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:53,504 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:18:53,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:18:53,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835205859] [2022-11-22 00:18:53,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835205859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:53,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:53,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:18:53,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023254597] [2022-11-22 00:18:53,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:53,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:18:53,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:18:53,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:18:53,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:18:53,508 INFO L87 Difference]: Start difference. First operand 6697 states and 9782 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) [2022-11-22 00:18:59,250 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 [] [2022-11-22 00:18:59,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:59,311 INFO L93 Difference]: Finished difference Result 6697 states and 9782 transitions. [2022-11-22 00:18:59,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:18:59,311 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 [2022-11-22 00:18:59,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:59,345 INFO L225 Difference]: With dead ends: 6697 [2022-11-22 00:18:59,345 INFO L226 Difference]: Without dead ends: 6695 [2022-11-22 00:18:59,351 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 [2022-11-22 00:18:59,352 INFO L413 NwaCegarLoop]: 4569 mSDtfsCounter, 5020 mSDsluCounter, 4570 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5024 SdHoareTripleChecker+Valid, 9139 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:59,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5024 Valid, 9139 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-22 00:18:59,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6695 states. [2022-11-22 00:19:00,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6695 to 6695. [2022-11-22 00:19:00,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6695 states, 3913 states have (on average 1.2811142346026068) internal successors, (5013), 4016 states have internal predecessors, (5013), 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) [2022-11-22 00:19:00,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6695 states to 6695 states and 9780 transitions. [2022-11-22 00:19:00,265 INFO L78 Accepts]: Start accepts. Automaton has 6695 states and 9780 transitions. Word has length 74 [2022-11-22 00:19:00,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:19:00,266 INFO L495 AbstractCegarLoop]: Abstraction has 6695 states and 9780 transitions. [2022-11-22 00:19:00,266 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) [2022-11-22 00:19:00,266 INFO L276 IsEmpty]: Start isEmpty. Operand 6695 states and 9780 transitions. [2022-11-22 00:19:00,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-22 00:19:00,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:19:00,268 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] [2022-11-22 00:19:00,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 00:19:00,268 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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)] === [2022-11-22 00:19:00,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:19:00,269 INFO L85 PathProgramCache]: Analyzing trace with hash -395623126, now seen corresponding path program 1 times [2022-11-22 00:19:00,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:19:00,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530741221] [2022-11-22 00:19:00,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:19:00,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:19:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:19:00,624 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:19:00,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:19:00,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530741221] [2022-11-22 00:19:00,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530741221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:19:00,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:19:00,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:19:00,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786090350] [2022-11-22 00:19:00,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:19:00,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:19:00,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:19:00,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:19:00,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:19:00,626 INFO L87 Difference]: Start difference. First operand 6695 states and 9780 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) [2022-11-22 00:19:06,276 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 [] [2022-11-22 00:19:06,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:19:06,337 INFO L93 Difference]: Finished difference Result 6695 states and 9780 transitions. [2022-11-22 00:19:06,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:19:06,338 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 [2022-11-22 00:19:06,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:19:06,371 INFO L225 Difference]: With dead ends: 6695 [2022-11-22 00:19:06,371 INFO L226 Difference]: Without dead ends: 6693 [2022-11-22 00:19:06,376 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 [2022-11-22 00:19:06,376 INFO L413 NwaCegarLoop]: 4567 mSDtfsCounter, 5017 mSDsluCounter, 4568 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5021 SdHoareTripleChecker+Valid, 9135 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:19:06,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5021 Valid, 9135 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-22 00:19:06,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6693 states. [2022-11-22 00:19:07,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6693 to 6693. [2022-11-22 00:19:07,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6693 states, 3912 states have (on average 1.2809304703476483) internal successors, (5011), 4014 states have internal predecessors, (5011), 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) [2022-11-22 00:19:07,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6693 states to 6693 states and 9778 transitions. [2022-11-22 00:19:07,150 INFO L78 Accepts]: Start accepts. Automaton has 6693 states and 9778 transitions. Word has length 79 [2022-11-22 00:19:07,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:19:07,150 INFO L495 AbstractCegarLoop]: Abstraction has 6693 states and 9778 transitions. [2022-11-22 00:19:07,150 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) [2022-11-22 00:19:07,150 INFO L276 IsEmpty]: Start isEmpty. Operand 6693 states and 9778 transitions. [2022-11-22 00:19:07,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 00:19:07,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:19:07,152 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] [2022-11-22 00:19:07,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 00:19:07,152 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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)] === [2022-11-22 00:19:07,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:19:07,153 INFO L85 PathProgramCache]: Analyzing trace with hash 430009275, now seen corresponding path program 1 times [2022-11-22 00:19:07,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:19:07,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788954011] [2022-11-22 00:19:07,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:19:07,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:19:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:19:08,049 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-22 00:19:08,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:19:08,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788954011] [2022-11-22 00:19:08,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788954011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:19:08,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:19:08,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 00:19:08,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064036117] [2022-11-22 00:19:08,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:19:08,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:19:08,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:19:08,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:19:08,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:19:08,051 INFO L87 Difference]: Start difference. First operand 6693 states and 9778 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) [2022-11-22 00:19:20,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:19:22,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:19:24,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:19:26,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:19:26,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:19:26,532 INFO L93 Difference]: Finished difference Result 6693 states and 9778 transitions. [2022-11-22 00:19:26,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:19:26,533 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 [2022-11-22 00:19:26,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:19:26,564 INFO L225 Difference]: With dead ends: 6693 [2022-11-22 00:19:26,565 INFO L226 Difference]: Without dead ends: 6691 [2022-11-22 00:19:26,569 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 [2022-11-22 00:19:26,569 INFO L413 NwaCegarLoop]: 4566 mSDtfsCounter, 5017 mSDsluCounter, 11218 mSDsCounter, 0 mSdLazyCounter, 4365 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5022 SdHoareTripleChecker+Valid, 15784 SdHoareTripleChecker+Invalid, 4368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4365 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:19:26,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5022 Valid, 15784 Invalid, 4368 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4365 Invalid, 3 Unknown, 0 Unchecked, 17.4s Time] [2022-11-22 00:19:26,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6691 states. [2022-11-22 00:19:27,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6691 to 6691. [2022-11-22 00:19:27,332 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) [2022-11-22 00:19:27,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 9774 transitions. [2022-11-22 00:19:27,356 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 9774 transitions. Word has length 80 [2022-11-22 00:19:27,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:19:27,357 INFO L495 AbstractCegarLoop]: Abstraction has 6691 states and 9774 transitions. [2022-11-22 00:19:27,357 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) [2022-11-22 00:19:27,357 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 9774 transitions. [2022-11-22 00:19:27,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-22 00:19:27,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:19:27,358 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] [2022-11-22 00:19:27,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 00:19:27,359 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)] === [2022-11-22 00:19:27,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:19:27,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1021873923, now seen corresponding path program 1 times [2022-11-22 00:19:27,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:19:27,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937460850] [2022-11-22 00:19:27,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:19:27,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:19:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:19:27,709 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:19:27,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:19:27,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937460850] [2022-11-22 00:19:27,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937460850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:19:27,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:19:27,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:19:27,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2468605] [2022-11-22 00:19:27,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:19:27,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:19:27,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:19:27,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:19:27,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:19:27,714 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) [2022-11-22 00:19:33,821 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 [] [2022-11-22 00:19:33,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:19:33,883 INFO L93 Difference]: Finished difference Result 6691 states and 9774 transitions. [2022-11-22 00:19:33,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:19:33,884 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 [2022-11-22 00:19:33,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:19:33,916 INFO L225 Difference]: With dead ends: 6691 [2022-11-22 00:19:33,916 INFO L226 Difference]: Without dead ends: 6689 [2022-11-22 00:19:33,922 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 [2022-11-22 00:19:33,922 INFO L413 NwaCegarLoop]: 4563 mSDtfsCounter, 5016 mSDsluCounter, 4560 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5020 SdHoareTripleChecker+Valid, 9123 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:19:33,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5020 Valid, 9123 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-22 00:19:33,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6689 states. [2022-11-22 00:19:34,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6689 to 6689. [2022-11-22 00:19:34,732 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) [2022-11-22 00:19:34,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6689 states to 6689 states and 9772 transitions. [2022-11-22 00:19:34,757 INFO L78 Accepts]: Start accepts. Automaton has 6689 states and 9772 transitions. Word has length 84 [2022-11-22 00:19:34,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:19:34,758 INFO L495 AbstractCegarLoop]: Abstraction has 6689 states and 9772 transitions. [2022-11-22 00:19:34,758 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) [2022-11-22 00:19:34,758 INFO L276 IsEmpty]: Start isEmpty. Operand 6689 states and 9772 transitions. [2022-11-22 00:19:34,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-22 00:19:34,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:19:34,760 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] [2022-11-22 00:19:34,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 00:19:34,761 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)] === [2022-11-22 00:19:34,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:19:34,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1290491955, now seen corresponding path program 1 times [2022-11-22 00:19:34,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:19:34,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015799949] [2022-11-22 00:19:34,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:19:34,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:19:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:19:35,049 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-22 00:19:35,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:19:35,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015799949] [2022-11-22 00:19:35,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015799949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:19:35,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:19:35,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:19:35,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266489537] [2022-11-22 00:19:35,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:19:35,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:19:35,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:19:35,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:19:35,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:19:35,052 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) [2022-11-22 00:19:39,931 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 [] [2022-11-22 00:19:39,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:19:39,990 INFO L93 Difference]: Finished difference Result 13351 states and 19984 transitions. [2022-11-22 00:19:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:19:39,990 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 [2022-11-22 00:19:39,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:19:40,026 INFO L225 Difference]: With dead ends: 13351 [2022-11-22 00:19:40,026 INFO L226 Difference]: Without dead ends: 6681 [2022-11-22 00:19:40,071 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 [2022-11-22 00:19:40,071 INFO L413 NwaCegarLoop]: 4558 mSDtfsCounter, 5001 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5003 SdHoareTripleChecker+Valid, 4559 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:19:40,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5003 Valid, 4559 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-22 00:19:40,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6681 states. [2022-11-22 00:19:40,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6681 to 6681. [2022-11-22 00:19:40,853 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) [2022-11-22 00:19:40,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6681 states to 6681 states and 9759 transitions. [2022-11-22 00:19:40,878 INFO L78 Accepts]: Start accepts. Automaton has 6681 states and 9759 transitions. Word has length 83 [2022-11-22 00:19:40,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:19:40,878 INFO L495 AbstractCegarLoop]: Abstraction has 6681 states and 9759 transitions. [2022-11-22 00:19:40,878 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) [2022-11-22 00:19:40,878 INFO L276 IsEmpty]: Start isEmpty. Operand 6681 states and 9759 transitions. [2022-11-22 00:19:40,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-22 00:19:40,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:19:40,880 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] [2022-11-22 00:19:40,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 00:19:40,880 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)] === [2022-11-22 00:19:40,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:19:40,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1526381114, now seen corresponding path program 1 times [2022-11-22 00:19:40,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:19:40,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847969572] [2022-11-22 00:19:40,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:19:40,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:19:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:19:41,236 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:19:41,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:19:41,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847969572] [2022-11-22 00:19:41,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847969572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:19:41,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:19:41,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:19:41,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927330029] [2022-11-22 00:19:41,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:19:41,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:19:41,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:19:41,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:19:41,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:19:41,239 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) [2022-11-22 00:19:43,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:19:48,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:19:48,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:19:48,458 INFO L93 Difference]: Finished difference Result 6681 states and 9759 transitions. [2022-11-22 00:19:48,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:19:48,458 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 [2022-11-22 00:19:48,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:19:48,479 INFO L225 Difference]: With dead ends: 6681 [2022-11-22 00:19:48,479 INFO L226 Difference]: Without dead ends: 6679 [2022-11-22 00:19:48,482 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 [2022-11-22 00:19:48,483 INFO L413 NwaCegarLoop]: 4556 mSDtfsCounter, 5003 mSDsluCounter, 4557 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5007 SdHoareTripleChecker+Valid, 9113 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:19:48,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5007 Valid, 9113 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-22 00:19:48,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2022-11-22 00:19:49,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 6679. [2022-11-22 00:19:49,123 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) [2022-11-22 00:19:49,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6679 states to 6679 states and 9757 transitions. [2022-11-22 00:19:49,150 INFO L78 Accepts]: Start accepts. Automaton has 6679 states and 9757 transitions. Word has length 86 [2022-11-22 00:19:49,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:19:49,150 INFO L495 AbstractCegarLoop]: Abstraction has 6679 states and 9757 transitions. [2022-11-22 00:19:49,150 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) [2022-11-22 00:19:49,150 INFO L276 IsEmpty]: Start isEmpty. Operand 6679 states and 9757 transitions. [2022-11-22 00:19:49,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-22 00:19:49,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:19:49,152 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] [2022-11-22 00:19:49,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 00:19:49,152 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)] === [2022-11-22 00:19:49,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:19:49,153 INFO L85 PathProgramCache]: Analyzing trace with hash 362178353, now seen corresponding path program 1 times [2022-11-22 00:19:49,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:19:49,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449882857] [2022-11-22 00:19:49,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:19:49,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:19:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:19:49,497 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:19:49,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:19:49,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449882857] [2022-11-22 00:19:49,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449882857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:19:49,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:19:49,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:19:49,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489546410] [2022-11-22 00:19:49,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:19:49,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:19:49,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:19:49,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:19:49,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:19:49,502 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) [2022-11-22 00:19:55,709 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 [] [2022-11-22 00:19:55,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:19:55,775 INFO L93 Difference]: Finished difference Result 6679 states and 9757 transitions. [2022-11-22 00:19:55,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:19:55,775 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 [2022-11-22 00:19:55,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:19:55,793 INFO L225 Difference]: With dead ends: 6679 [2022-11-22 00:19:55,794 INFO L226 Difference]: Without dead ends: 6677 [2022-11-22 00:19:55,797 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 [2022-11-22 00:19:55,798 INFO L413 NwaCegarLoop]: 4554 mSDtfsCounter, 5002 mSDsluCounter, 4555 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5006 SdHoareTripleChecker+Valid, 9109 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:19:55,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5006 Valid, 9109 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-22 00:19:55,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6677 states. [2022-11-22 00:19:56,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6677 to 6677. [2022-11-22 00:19:56,592 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) [2022-11-22 00:19:56,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 9755 transitions. [2022-11-22 00:19:56,616 INFO L78 Accepts]: Start accepts. Automaton has 6677 states and 9755 transitions. Word has length 91 [2022-11-22 00:19:56,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:19:56,617 INFO L495 AbstractCegarLoop]: Abstraction has 6677 states and 9755 transitions. [2022-11-22 00:19:56,617 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) [2022-11-22 00:19:56,617 INFO L276 IsEmpty]: Start isEmpty. Operand 6677 states and 9755 transitions. [2022-11-22 00:19:56,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-22 00:19:56,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:19:56,619 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] [2022-11-22 00:19:56,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-22 00:19:56,620 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)] === [2022-11-22 00:19:56,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:19:56,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1353353360, now seen corresponding path program 1 times [2022-11-22 00:19:56,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:19:56,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783164175] [2022-11-22 00:19:56,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:19:56,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:19:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:19:56,942 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:19:56,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:19:56,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783164175] [2022-11-22 00:19:56,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783164175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:19:56,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:19:56,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:19:56,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019373407] [2022-11-22 00:19:56,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:19:56,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:19:56,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:19:56,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:19:56,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:19:56,944 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) [2022-11-22 00:20:03,655 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 [] [2022-11-22 00:20:03,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:03,723 INFO L93 Difference]: Finished difference Result 6677 states and 9755 transitions. [2022-11-22 00:20:03,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:20:03,723 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 [2022-11-22 00:20:03,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:03,744 INFO L225 Difference]: With dead ends: 6677 [2022-11-22 00:20:03,744 INFO L226 Difference]: Without dead ends: 6675 [2022-11-22 00:20:03,747 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 [2022-11-22 00:20:03,747 INFO L413 NwaCegarLoop]: 4551 mSDtfsCounter, 4999 mSDsluCounter, 4552 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5003 SdHoareTripleChecker+Valid, 9103 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:03,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5003 Valid, 9103 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 949 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-22 00:20:03,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6675 states. [2022-11-22 00:20:04,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6675 to 6675. [2022-11-22 00:20:04,467 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) [2022-11-22 00:20:04,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6675 states to 6675 states and 9753 transitions. [2022-11-22 00:20:04,492 INFO L78 Accepts]: Start accepts. Automaton has 6675 states and 9753 transitions. Word has length 96 [2022-11-22 00:20:04,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:04,493 INFO L495 AbstractCegarLoop]: Abstraction has 6675 states and 9753 transitions. [2022-11-22 00:20:04,493 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) [2022-11-22 00:20:04,493 INFO L276 IsEmpty]: Start isEmpty. Operand 6675 states and 9753 transitions. [2022-11-22 00:20:04,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-22 00:20:04,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:04,496 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] [2022-11-22 00:20:04,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-22 00:20:04,496 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)] === [2022-11-22 00:20:04,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:04,496 INFO L85 PathProgramCache]: Analyzing trace with hash 150115108, now seen corresponding path program 1 times [2022-11-22 00:20:04,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:04,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764798254] [2022-11-22 00:20:04,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:04,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:05,175 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-22 00:20:05,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:05,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764798254] [2022-11-22 00:20:05,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764798254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:05,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:05,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:20:05,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227735160] [2022-11-22 00:20:05,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:05,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:20:05,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:05,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:20:05,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:20:05,179 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) [2022-11-22 00:20:16,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:18,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:21,008 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 [] [2022-11-22 00:20:21,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:21,111 INFO L93 Difference]: Finished difference Result 6847 states and 9934 transitions. [2022-11-22 00:20:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:20:21,119 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 [2022-11-22 00:20:21,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:21,148 INFO L225 Difference]: With dead ends: 6847 [2022-11-22 00:20:21,148 INFO L226 Difference]: Without dead ends: 6845 [2022-11-22 00:20:21,151 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 [2022-11-22 00:20:21,153 INFO L413 NwaCegarLoop]: 7562 mSDtfsCounter, 5131 mSDsluCounter, 18678 mSDsCounter, 0 mSdLazyCounter, 2804 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5132 SdHoareTripleChecker+Valid, 26240 SdHoareTripleChecker+Invalid, 2807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2804 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:21,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5132 Valid, 26240 Invalid, 2807 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2804 Invalid, 3 Unknown, 0 Unchecked, 14.7s Time] [2022-11-22 00:20:21,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6845 states. [2022-11-22 00:20:21,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6845 to 6683. [2022-11-22 00:20:21,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6683 states, 3907 states have (on average 1.2779626311748145) internal successors, (4993), 4001 states have internal predecessors, (4993), 2248 states have call successors, (2248), 516 states have call predecessors, (2248), 511 states have return successors, (2515), 2222 states have call predecessors, (2515), 2246 states have call successors, (2515) [2022-11-22 00:20:22,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6683 states to 6683 states and 9756 transitions. [2022-11-22 00:20:22,068 INFO L78 Accepts]: Start accepts. Automaton has 6683 states and 9756 transitions. Word has length 102 [2022-11-22 00:20:22,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:22,069 INFO L495 AbstractCegarLoop]: Abstraction has 6683 states and 9756 transitions. [2022-11-22 00:20:22,069 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) [2022-11-22 00:20:22,069 INFO L276 IsEmpty]: Start isEmpty. Operand 6683 states and 9756 transitions. [2022-11-22 00:20:22,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-22 00:20:22,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:22,072 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] [2022-11-22 00:20:22,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-22 00:20:22,072 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)] === [2022-11-22 00:20:22,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:22,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1816690731, now seen corresponding path program 1 times [2022-11-22 00:20:22,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:22,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073784978] [2022-11-22 00:20:22,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:22,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:22,802 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-22 00:20:22,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:22,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073784978] [2022-11-22 00:20:22,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073784978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:22,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:22,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:20:22,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302376990] [2022-11-22 00:20:22,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:22,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:20:22,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:22,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:20:22,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:20:22,806 INFO L87 Difference]: Start difference. First operand 6683 states and 9756 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) [2022-11-22 00:20:25,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:32,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:34,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:34,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:34,420 INFO L93 Difference]: Finished difference Result 6705 states and 9772 transitions. [2022-11-22 00:20:34,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:20:34,423 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 [2022-11-22 00:20:34,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:34,440 INFO L225 Difference]: With dead ends: 6705 [2022-11-22 00:20:34,440 INFO L226 Difference]: Without dead ends: 6703 [2022-11-22 00:20:34,442 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 [2022-11-22 00:20:34,443 INFO L413 NwaCegarLoop]: 4556 mSDtfsCounter, 4947 mSDsluCounter, 9161 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 13717 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:34,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4949 Valid, 13717 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1436 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2022-11-22 00:20:34,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6703 states. [2022-11-22 00:20:35,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6703 to 6701. [2022-11-22 00:20:35,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6701 states, 3919 states have (on average 1.2771115080377646) internal successors, (5005), 4013 states have internal predecessors, (5005), 2248 states have call successors, (2248), 522 states have call predecessors, (2248), 517 states have return successors, (2515), 2222 states have call predecessors, (2515), 2246 states have call successors, (2515) [2022-11-22 00:20:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6701 states to 6701 states and 9768 transitions. [2022-11-22 00:20:35,155 INFO L78 Accepts]: Start accepts. Automaton has 6701 states and 9768 transitions. Word has length 104 [2022-11-22 00:20:35,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:35,156 INFO L495 AbstractCegarLoop]: Abstraction has 6701 states and 9768 transitions. [2022-11-22 00:20:35,156 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) [2022-11-22 00:20:35,156 INFO L276 IsEmpty]: Start isEmpty. Operand 6701 states and 9768 transitions. [2022-11-22 00:20:35,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-22 00:20:35,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:35,159 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] [2022-11-22 00:20:35,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-22 00:20:35,160 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)] === [2022-11-22 00:20:35,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:35,160 INFO L85 PathProgramCache]: Analyzing trace with hash 275721439, now seen corresponding path program 1 times [2022-11-22 00:20:35,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:35,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469037215] [2022-11-22 00:20:35,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:35,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:35,483 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:20:35,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:35,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469037215] [2022-11-22 00:20:35,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469037215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:35,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:35,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:20:35,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490070123] [2022-11-22 00:20:35,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:35,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:20:35,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:35,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:20:35,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:20:35,486 INFO L87 Difference]: Start difference. First operand 6701 states and 9768 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) [2022-11-22 00:20:41,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:41,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:41,603 INFO L93 Difference]: Finished difference Result 6705 states and 9774 transitions. [2022-11-22 00:20:41,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:20:41,604 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 [2022-11-22 00:20:41,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:41,621 INFO L225 Difference]: With dead ends: 6705 [2022-11-22 00:20:41,621 INFO L226 Difference]: Without dead ends: 6703 [2022-11-22 00:20:41,624 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 [2022-11-22 00:20:41,624 INFO L413 NwaCegarLoop]: 4550 mSDtfsCounter, 4996 mSDsluCounter, 4551 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5000 SdHoareTripleChecker+Valid, 9101 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:41,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5000 Valid, 9101 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-22 00:20:41,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6703 states. [2022-11-22 00:20:42,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6703 to 6699. [2022-11-22 00:20:42,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6699 states, 3918 states have (on average 1.2769270035732516) internal successors, (5003), 4011 states have internal predecessors, (5003), 2248 states have call successors, (2248), 522 states have call predecessors, (2248), 517 states have return successors, (2515), 2222 states have call predecessors, (2515), 2246 states have call successors, (2515) [2022-11-22 00:20:42,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 9766 transitions. [2022-11-22 00:20:42,341 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 9766 transitions. Word has length 101 [2022-11-22 00:20:42,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:42,341 INFO L495 AbstractCegarLoop]: Abstraction has 6699 states and 9766 transitions. [2022-11-22 00:20:42,341 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) [2022-11-22 00:20:42,342 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 9766 transitions. [2022-11-22 00:20:42,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-22 00:20:42,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:42,344 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] [2022-11-22 00:20:42,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-22 00:20:42,344 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)] === [2022-11-22 00:20:42,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:42,345 INFO L85 PathProgramCache]: Analyzing trace with hash 19365162, now seen corresponding path program 1 times [2022-11-22 00:20:42,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:42,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471023036] [2022-11-22 00:20:42,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:42,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:42,872 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-22 00:20:42,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:42,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471023036] [2022-11-22 00:20:42,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471023036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:42,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:42,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:20:42,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795786692] [2022-11-22 00:20:42,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:42,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:20:42,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:42,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:20:42,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:20:42,876 INFO L87 Difference]: Start difference. First operand 6699 states and 9766 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) [2022-11-22 00:20:53,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:55,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:57,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:59,253 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 [] [2022-11-22 00:20:59,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:59,362 INFO L93 Difference]: Finished difference Result 6711 states and 9774 transitions. [2022-11-22 00:20:59,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:20:59,362 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 [2022-11-22 00:20:59,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:59,379 INFO L225 Difference]: With dead ends: 6711 [2022-11-22 00:20:59,379 INFO L226 Difference]: Without dead ends: 6709 [2022-11-22 00:20:59,382 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 [2022-11-22 00:20:59,382 INFO L413 NwaCegarLoop]: 5113 mSDtfsCounter, 792 mSDsluCounter, 14680 mSDsCounter, 0 mSdLazyCounter, 2140 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 19793 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2140 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:59,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 19793 Invalid, 2143 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2140 Invalid, 3 Unknown, 0 Unchecked, 15.4s Time] [2022-11-22 00:20:59,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6709 states. [2022-11-22 00:21:00,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6709 to 6703. [2022-11-22 00:21:00,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6703 states, 3921 states have (on average 1.2764600867125733) internal successors, (5005), 4014 states have internal predecessors, (5005), 2248 states have call successors, (2248), 523 states have call predecessors, (2248), 518 states have return successors, (2515), 2222 states have call predecessors, (2515), 2246 states have call successors, (2515) [2022-11-22 00:21:00,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6703 states to 6703 states and 9768 transitions. [2022-11-22 00:21:00,091 INFO L78 Accepts]: Start accepts. Automaton has 6703 states and 9768 transitions. Word has length 106 [2022-11-22 00:21:00,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:21:00,092 INFO L495 AbstractCegarLoop]: Abstraction has 6703 states and 9768 transitions. [2022-11-22 00:21:00,092 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) [2022-11-22 00:21:00,092 INFO L276 IsEmpty]: Start isEmpty. Operand 6703 states and 9768 transitions. [2022-11-22 00:21:00,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-22 00:21:00,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:21:00,096 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] [2022-11-22 00:21:00,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-22 00:21:00,097 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)] === [2022-11-22 00:21:00,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:21:00,097 INFO L85 PathProgramCache]: Analyzing trace with hash 2110905678, now seen corresponding path program 1 times [2022-11-22 00:21:00,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:21:00,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770433266] [2022-11-22 00:21:00,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:00,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:21:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:00,468 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:21:00,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:21:00,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770433266] [2022-11-22 00:21:00,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770433266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:21:00,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:21:00,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:21:00,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016336804] [2022-11-22 00:21:00,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:21:00,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:21:00,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:21:00,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:21:00,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:21:00,470 INFO L87 Difference]: Start difference. First operand 6703 states and 9768 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) [2022-11-22 00:21:05,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:21:07,598 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 [] [2022-11-22 00:21:07,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:21:07,671 INFO L93 Difference]: Finished difference Result 6703 states and 9768 transitions. [2022-11-22 00:21:07,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:21:07,671 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 [2022-11-22 00:21:07,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:21:07,690 INFO L225 Difference]: With dead ends: 6703 [2022-11-22 00:21:07,690 INFO L226 Difference]: Without dead ends: 6701 [2022-11-22 00:21:07,694 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 [2022-11-22 00:21:07,695 INFO L413 NwaCegarLoop]: 4548 mSDtfsCounter, 4994 mSDsluCounter, 4548 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4996 SdHoareTripleChecker+Valid, 9096 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:21:07,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4996 Valid, 9096 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-11-22 00:21:07,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6701 states. [2022-11-22 00:21:08,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6701 to 6701. [2022-11-22 00:21:08,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6701 states, 3920 states have (on average 1.2762755102040817) internal successors, (5003), 4012 states have internal predecessors, (5003), 2248 states have call successors, (2248), 523 states have call predecessors, (2248), 518 states have return successors, (2515), 2222 states have call predecessors, (2515), 2246 states have call successors, (2515) [2022-11-22 00:21:08,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6701 states to 6701 states and 9766 transitions. [2022-11-22 00:21:08,393 INFO L78 Accepts]: Start accepts. Automaton has 6701 states and 9766 transitions. Word has length 106 [2022-11-22 00:21:08,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:21:08,393 INFO L495 AbstractCegarLoop]: Abstraction has 6701 states and 9766 transitions. [2022-11-22 00:21:08,394 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) [2022-11-22 00:21:08,394 INFO L276 IsEmpty]: Start isEmpty. Operand 6701 states and 9766 transitions. [2022-11-22 00:21:08,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 00:21:08,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:21:08,396 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] [2022-11-22 00:21:08,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-22 00:21:08,397 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)] === [2022-11-22 00:21:08,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:21:08,397 INFO L85 PathProgramCache]: Analyzing trace with hash -26294806, now seen corresponding path program 1 times [2022-11-22 00:21:08,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:21:08,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631997842] [2022-11-22 00:21:08,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:08,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:21:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-22 00:21:09,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:21:09,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631997842] [2022-11-22 00:21:09,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631997842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:21:09,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:21:09,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 00:21:09,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196655514] [2022-11-22 00:21:09,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:21:09,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 00:21:09,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:21:09,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 00:21:09,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:21:09,270 INFO L87 Difference]: Start difference. First operand 6701 states and 9766 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) [2022-11-22 00:21:44,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:21:46,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:21:48,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:21:50,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:21:54,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:21:56,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:21:58,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:21:58,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:21:58,740 INFO L93 Difference]: Finished difference Result 13281 states and 19378 transitions. [2022-11-22 00:21:58,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 00:21:58,741 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 [2022-11-22 00:21:58,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:21:58,786 INFO L225 Difference]: With dead ends: 13281 [2022-11-22 00:21:58,786 INFO L226 Difference]: Without dead ends: 13279 [2022-11-22 00:21:58,792 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 [2022-11-22 00:21:58,792 INFO L413 NwaCegarLoop]: 4792 mSDtfsCounter, 8006 mSDsluCounter, 10361 mSDsCounter, 0 mSdLazyCounter, 15498 mSolverCounterSat, 301 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8966 SdHoareTripleChecker+Valid, 15153 SdHoareTripleChecker+Invalid, 15804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 15498 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:21:58,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8966 Valid, 15153 Invalid, 15804 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [301 Valid, 15498 Invalid, 5 Unknown, 0 Unchecked, 46.7s Time] [2022-11-22 00:21:58,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13279 states. [2022-11-22 00:22:00,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13279 to 13127. [2022-11-22 00:22:00,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13127 states, 7697 states have (on average 1.2793296089385475) internal successors, (9847), 7868 states have internal predecessors, (9847), 4415 states have call successors, (4415), 1014 states have call predecessors, (4415), 1000 states have return successors, (4933), 4357 states have call predecessors, (4933), 4413 states have call successors, (4933) [2022-11-22 00:22:00,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13127 states to 13127 states and 19195 transitions. [2022-11-22 00:22:00,250 INFO L78 Accepts]: Start accepts. Automaton has 13127 states and 19195 transitions. Word has length 111 [2022-11-22 00:22:00,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:00,251 INFO L495 AbstractCegarLoop]: Abstraction has 13127 states and 19195 transitions. [2022-11-22 00:22:00,251 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) [2022-11-22 00:22:00,251 INFO L276 IsEmpty]: Start isEmpty. Operand 13127 states and 19195 transitions. [2022-11-22 00:22:00,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 00:22:00,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:00,255 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] [2022-11-22 00:22:00,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-22 00:22:00,255 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)] === [2022-11-22 00:22:00,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:00,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1438277290, now seen corresponding path program 1 times [2022-11-22 00:22:00,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:00,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228759912] [2022-11-22 00:22:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:00,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:22:00,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:00,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228759912] [2022-11-22 00:22:00,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228759912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:00,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:00,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:22:00,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237414193] [2022-11-22 00:22:00,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:00,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:22:00,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:00,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:22:00,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:22:00,594 INFO L87 Difference]: Start difference. First operand 13127 states and 19195 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) [2022-11-22 00:22:07,990 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 [] [2022-11-22 00:22:08,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:08,128 INFO L93 Difference]: Finished difference Result 13135 states and 19207 transitions. [2022-11-22 00:22:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:22:08,129 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 [2022-11-22 00:22:08,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:08,171 INFO L225 Difference]: With dead ends: 13135 [2022-11-22 00:22:08,171 INFO L226 Difference]: Without dead ends: 13133 [2022-11-22 00:22:08,177 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 [2022-11-22 00:22:08,177 INFO L413 NwaCegarLoop]: 4546 mSDtfsCounter, 4990 mSDsluCounter, 4547 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4994 SdHoareTripleChecker+Valid, 9093 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:08,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4994 Valid, 9093 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-22 00:22:08,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13133 states. [2022-11-22 00:22:09,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13133 to 13125. [2022-11-22 00:22:09,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13125 states, 7696 states have (on average 1.2792359667359667) internal successors, (9845), 7866 states have internal predecessors, (9845), 4415 states have call successors, (4415), 1014 states have call predecessors, (4415), 1000 states have return successors, (4933), 4357 states have call predecessors, (4933), 4413 states have call successors, (4933) [2022-11-22 00:22:09,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13125 states to 13125 states and 19193 transitions. [2022-11-22 00:22:09,646 INFO L78 Accepts]: Start accepts. Automaton has 13125 states and 19193 transitions. Word has length 111 [2022-11-22 00:22:09,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:09,647 INFO L495 AbstractCegarLoop]: Abstraction has 13125 states and 19193 transitions. [2022-11-22 00:22:09,647 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) [2022-11-22 00:22:09,647 INFO L276 IsEmpty]: Start isEmpty. Operand 13125 states and 19193 transitions. [2022-11-22 00:22:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 00:22:09,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:09,650 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] [2022-11-22 00:22:09,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-22 00:22:09,650 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)] === [2022-11-22 00:22:09,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:09,651 INFO L85 PathProgramCache]: Analyzing trace with hash -629582893, now seen corresponding path program 1 times [2022-11-22 00:22:09,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:09,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846478675] [2022-11-22 00:22:09,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:09,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:10,043 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:22:10,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:10,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846478675] [2022-11-22 00:22:10,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846478675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:10,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:10,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:22:10,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637674163] [2022-11-22 00:22:10,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:10,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:22:10,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:10,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:22:10,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:22:10,046 INFO L87 Difference]: Start difference. First operand 13125 states and 19193 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) [2022-11-22 00:22:16,611 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 [] [2022-11-22 00:22:16,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:16,755 INFO L93 Difference]: Finished difference Result 13133 states and 19205 transitions. [2022-11-22 00:22:16,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:22:16,756 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 [2022-11-22 00:22:16,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:16,799 INFO L225 Difference]: With dead ends: 13133 [2022-11-22 00:22:16,799 INFO L226 Difference]: Without dead ends: 13131 [2022-11-22 00:22:16,805 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 [2022-11-22 00:22:16,805 INFO L413 NwaCegarLoop]: 4544 mSDtfsCounter, 4987 mSDsluCounter, 4545 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4991 SdHoareTripleChecker+Valid, 9089 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:16,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4991 Valid, 9089 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-22 00:22:16,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13131 states. [2022-11-22 00:22:18,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13131 to 13123. [2022-11-22 00:22:18,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13123 states, 7695 states have (on average 1.2791423001949318) internal successors, (9843), 7864 states have internal predecessors, (9843), 4415 states have call successors, (4415), 1014 states have call predecessors, (4415), 1000 states have return successors, (4933), 4357 states have call predecessors, (4933), 4413 states have call successors, (4933) [2022-11-22 00:22:18,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13123 states to 13123 states and 19191 transitions. [2022-11-22 00:22:18,375 INFO L78 Accepts]: Start accepts. Automaton has 13123 states and 19191 transitions. Word has length 116 [2022-11-22 00:22:18,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:18,376 INFO L495 AbstractCegarLoop]: Abstraction has 13123 states and 19191 transitions. [2022-11-22 00:22:18,376 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) [2022-11-22 00:22:18,376 INFO L276 IsEmpty]: Start isEmpty. Operand 13123 states and 19191 transitions. [2022-11-22 00:22:18,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-22 00:22:18,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:18,380 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] [2022-11-22 00:22:18,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-22 00:22:18,380 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)] === [2022-11-22 00:22:18,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:18,381 INFO L85 PathProgramCache]: Analyzing trace with hash 701075001, now seen corresponding path program 1 times [2022-11-22 00:22:18,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:18,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679757591] [2022-11-22 00:22:18,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:18,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:19,079 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-22 00:22:19,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:19,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679757591] [2022-11-22 00:22:19,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679757591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:19,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:19,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:22:19,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392647706] [2022-11-22 00:22:19,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:19,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:22:19,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:19,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:22:19,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:22:19,082 INFO L87 Difference]: Start difference. First operand 13123 states and 19191 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) [2022-11-22 00:22:27,425 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 [] [2022-11-22 00:22:30,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:30,734 INFO L93 Difference]: Finished difference Result 25388 states and 37226 transitions. [2022-11-22 00:22:30,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:22:30,734 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 [2022-11-22 00:22:30,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:30,824 INFO L225 Difference]: With dead ends: 25388 [2022-11-22 00:22:30,825 INFO L226 Difference]: Without dead ends: 25386 [2022-11-22 00:22:30,834 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 [2022-11-22 00:22:30,835 INFO L413 NwaCegarLoop]: 5669 mSDtfsCounter, 4929 mSDsluCounter, 15563 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4931 SdHoareTripleChecker+Valid, 21232 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:30,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4931 Valid, 21232 Invalid, 1864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1860 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-11-22 00:22:30,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25386 states. [2022-11-22 00:22:34,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25386 to 25299. [2022-11-22 00:22:34,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25299 states, 14875 states have (on average 1.281075630252101) internal successors, (19056), 15191 states have internal predecessors, (19056), 8480 states have call successors, (8480), 1959 states have call predecessors, (8480), 1931 states have return successors, (9596), 8365 states have call predecessors, (9596), 8478 states have call successors, (9596) [2022-11-22 00:22:34,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25299 states to 25299 states and 37132 transitions. [2022-11-22 00:22:34,280 INFO L78 Accepts]: Start accepts. Automaton has 25299 states and 37132 transitions. Word has length 142 [2022-11-22 00:22:34,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:34,281 INFO L495 AbstractCegarLoop]: Abstraction has 25299 states and 37132 transitions. [2022-11-22 00:22:34,281 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) [2022-11-22 00:22:34,281 INFO L276 IsEmpty]: Start isEmpty. Operand 25299 states and 37132 transitions. [2022-11-22 00:22:34,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-22 00:22:34,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:34,285 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] [2022-11-22 00:22:34,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-22 00:22:34,285 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)] === [2022-11-22 00:22:34,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:34,286 INFO L85 PathProgramCache]: Analyzing trace with hash 621610883, now seen corresponding path program 1 times [2022-11-22 00:22:34,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:34,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48913840] [2022-11-22 00:22:34,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:34,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:34,995 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:22:34,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:34,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48913840] [2022-11-22 00:22:34,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48913840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:34,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:34,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:22:34,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963219701] [2022-11-22 00:22:34,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:34,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:22:34,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:34,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:22:34,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:22:34,998 INFO L87 Difference]: Start difference. First operand 25299 states and 37132 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) [2022-11-22 00:22:43,181 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 [] [2022-11-22 00:22:44,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:44,902 INFO L93 Difference]: Finished difference Result 25307 states and 37144 transitions. [2022-11-22 00:22:44,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:22:44,903 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 [2022-11-22 00:22:44,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:44,976 INFO L225 Difference]: With dead ends: 25307 [2022-11-22 00:22:44,976 INFO L226 Difference]: Without dead ends: 25305 [2022-11-22 00:22:44,985 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 [2022-11-22 00:22:44,986 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 4984 mSDsluCounter, 4543 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4988 SdHoareTripleChecker+Valid, 9085 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:44,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4988 Valid, 9085 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-22 00:22:45,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25305 states. [2022-11-22 00:22:47,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25305 to 25305. [2022-11-22 00:22:47,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25305 states, 14878 states have (on average 1.280884527490254) internal successors, (19057), 15197 states have internal predecessors, (19057), 8480 states have call successors, (8480), 1959 states have call predecessors, (8480), 1935 states have return successors, (9604), 8365 states have call predecessors, (9604), 8478 states have call successors, (9604) [2022-11-22 00:22:47,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25305 states to 25305 states and 37141 transitions. [2022-11-22 00:22:47,926 INFO L78 Accepts]: Start accepts. Automaton has 25305 states and 37141 transitions. Word has length 121 [2022-11-22 00:22:47,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:47,927 INFO L495 AbstractCegarLoop]: Abstraction has 25305 states and 37141 transitions. [2022-11-22 00:22:47,927 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) [2022-11-22 00:22:47,927 INFO L276 IsEmpty]: Start isEmpty. Operand 25305 states and 37141 transitions. [2022-11-22 00:22:47,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-22 00:22:47,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:47,929 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] [2022-11-22 00:22:47,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-22 00:22:47,930 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)] === [2022-11-22 00:22:47,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:47,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1715889705, now seen corresponding path program 1 times [2022-11-22 00:22:47,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:47,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56222328] [2022-11-22 00:22:47,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:47,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:48,223 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:22:48,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:48,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56222328] [2022-11-22 00:22:48,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56222328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:48,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:48,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:22:48,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380263417] [2022-11-22 00:22:48,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:48,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:22:48,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:48,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:22:48,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:22:48,226 INFO L87 Difference]: Start difference. First operand 25305 states and 37141 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) [2022-11-22 00:22:55,614 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 [] [2022-11-22 00:22:57,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:57,666 INFO L93 Difference]: Finished difference Result 25305 states and 37141 transitions. [2022-11-22 00:22:57,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:22:57,666 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 [2022-11-22 00:22:57,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:57,759 INFO L225 Difference]: With dead ends: 25305 [2022-11-22 00:22:57,760 INFO L226 Difference]: Without dead ends: 25303 [2022-11-22 00:22:57,770 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 [2022-11-22 00:22:57,771 INFO L413 NwaCegarLoop]: 4540 mSDtfsCounter, 4981 mSDsluCounter, 4541 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4985 SdHoareTripleChecker+Valid, 9081 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:57,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4985 Valid, 9081 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-22 00:22:57,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25303 states. [2022-11-22 00:23:00,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25303 to 25303. [2022-11-22 00:23:00,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25303 states, 14877 states have (on average 1.2807689722390267) internal successors, (19054), 15195 states have internal predecessors, (19054), 8480 states have call successors, (8480), 1959 states have call predecessors, (8480), 1935 states have return successors, (9604), 8365 states have call predecessors, (9604), 8478 states have call successors, (9604) [2022-11-22 00:23:01,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25303 states to 25303 states and 37138 transitions. [2022-11-22 00:23:01,070 INFO L78 Accepts]: Start accepts. Automaton has 25303 states and 37138 transitions. Word has length 126 [2022-11-22 00:23:01,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:23:01,070 INFO L495 AbstractCegarLoop]: Abstraction has 25303 states and 37138 transitions. [2022-11-22 00:23:01,070 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) [2022-11-22 00:23:01,071 INFO L276 IsEmpty]: Start isEmpty. Operand 25303 states and 37138 transitions. [2022-11-22 00:23:01,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-22 00:23:01,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:23:01,073 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:23:01,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-22 00:23:01,073 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)] === [2022-11-22 00:23:01,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:23:01,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1103486936, now seen corresponding path program 1 times [2022-11-22 00:23:01,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:23:01,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009053095] [2022-11-22 00:23:01,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:23:01,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:23:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:23:01,379 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:23:01,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:23:01,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009053095] [2022-11-22 00:23:01,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009053095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:23:01,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:23:01,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:23:01,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737501733] [2022-11-22 00:23:01,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:23:01,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:23:01,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:23:01,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:23:01,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:23:01,381 INFO L87 Difference]: Start difference. First operand 25303 states and 37138 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) [2022-11-22 00:23:11,466 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 [] [2022-11-22 00:23:13,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:23:13,472 INFO L93 Difference]: Finished difference Result 25559 states and 37409 transitions. [2022-11-22 00:23:13,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:23:13,473 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 [2022-11-22 00:23:13,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:23:13,549 INFO L225 Difference]: With dead ends: 25559 [2022-11-22 00:23:13,549 INFO L226 Difference]: Without dead ends: 25557 [2022-11-22 00:23:13,559 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 [2022-11-22 00:23:13,560 INFO L413 NwaCegarLoop]: 5749 mSDtfsCounter, 4902 mSDsluCounter, 10269 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4906 SdHoareTripleChecker+Valid, 16018 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:23:13,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4906 Valid, 16018 Invalid, 1423 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1421 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-11-22 00:23:13,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25557 states. [2022-11-22 00:23:16,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25557 to 25513. [2022-11-22 00:23:16,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25513 states, 14998 states have (on average 1.2785038005067342) internal successors, (19175), 15317 states have internal predecessors, (19175), 8533 states have call successors, (8533), 1995 states have call predecessors, (8533), 1971 states have return successors, (9657), 8417 states have call predecessors, (9657), 8531 states have call successors, (9657) [2022-11-22 00:23:16,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25513 states to 25513 states and 37365 transitions. [2022-11-22 00:23:16,952 INFO L78 Accepts]: Start accepts. Automaton has 25513 states and 37365 transitions. Word has length 131 [2022-11-22 00:23:16,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:23:16,953 INFO L495 AbstractCegarLoop]: Abstraction has 25513 states and 37365 transitions. [2022-11-22 00:23:16,953 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) [2022-11-22 00:23:16,953 INFO L276 IsEmpty]: Start isEmpty. Operand 25513 states and 37365 transitions. [2022-11-22 00:23:16,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-22 00:23:16,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:23:16,956 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] [2022-11-22 00:23:16,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-22 00:23:16,956 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)] === [2022-11-22 00:23:16,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:23:16,957 INFO L85 PathProgramCache]: Analyzing trace with hash -371125743, now seen corresponding path program 1 times [2022-11-22 00:23:16,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:23:16,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122325692] [2022-11-22 00:23:16,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:23:16,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:23:17,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:23:17,344 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-22 00:23:17,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:23:17,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122325692] [2022-11-22 00:23:17,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122325692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:23:17,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:23:17,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:23:17,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190185735] [2022-11-22 00:23:17,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:23:17,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:23:17,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:23:17,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:23:17,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:23:17,346 INFO L87 Difference]: Start difference. First operand 25513 states and 37365 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) [2022-11-22 00:23:27,323 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 [] [2022-11-22 00:23:28,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:23:28,838 INFO L93 Difference]: Finished difference Result 25567 states and 37402 transitions. [2022-11-22 00:23:28,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:23:28,839 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 [2022-11-22 00:23:28,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:23:28,951 INFO L225 Difference]: With dead ends: 25567 [2022-11-22 00:23:28,952 INFO L226 Difference]: Without dead ends: 25565 [2022-11-22 00:23:28,965 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 [2022-11-22 00:23:28,966 INFO L413 NwaCegarLoop]: 4546 mSDtfsCounter, 51 mSDsluCounter, 13587 mSDsCounter, 0 mSdLazyCounter, 1910 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 18133 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1910 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:23:28,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 18133 Invalid, 1912 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1910 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-11-22 00:23:28,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25565 states. [2022-11-22 00:23:32,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25565 to 25565. [2022-11-22 00:23:32,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25565 states, 15026 states have (on average 1.2777186210568348) internal successors, (19199), 15345 states have internal predecessors, (19199), 8537 states have call successors, (8537), 2015 states have call predecessors, (8537), 1991 states have return successors, (9661), 8421 states have call predecessors, (9661), 8535 states have call successors, (9661) [2022-11-22 00:23:32,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25565 states to 25565 states and 37397 transitions. [2022-11-22 00:23:32,697 INFO L78 Accepts]: Start accepts. Automaton has 25565 states and 37397 transitions. Word has length 156 [2022-11-22 00:23:32,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:23:32,698 INFO L495 AbstractCegarLoop]: Abstraction has 25565 states and 37397 transitions. [2022-11-22 00:23:32,698 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) [2022-11-22 00:23:32,698 INFO L276 IsEmpty]: Start isEmpty. Operand 25565 states and 37397 transitions. [2022-11-22 00:23:32,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-22 00:23:32,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:23:32,700 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] [2022-11-22 00:23:32,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-22 00:23:32,701 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)] === [2022-11-22 00:23:32,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:23:32,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1185082150, now seen corresponding path program 1 times [2022-11-22 00:23:32,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:23:32,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316383628] [2022-11-22 00:23:32,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:23:32,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:23:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:23:33,119 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:23:33,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:23:33,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316383628] [2022-11-22 00:23:33,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316383628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:23:33,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:23:33,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:23:33,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716869163] [2022-11-22 00:23:33,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:23:33,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:23:33,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:23:33,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:23:33,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:23:33,122 INFO L87 Difference]: Start difference. First operand 25565 states and 37397 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) [2022-11-22 00:23:40,106 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 []