./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/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_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/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_625a8258-f6e6-4033-9a84-b513b7b4626e/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 215f888dc671693e11ab9e6bd2129df5ac5b9449825c6d5223962a3561afda36 --- 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 02:03:55,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:03:55,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:03:55,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:03:55,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:03:55,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:03:56,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:03:56,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:03:56,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:03:56,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:03:56,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:03:56,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:03:56,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:03:56,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:03:56,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:03:56,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:03:56,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:03:56,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:03:56,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:03:56,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:03:56,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:03:56,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:03:56,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:03:56,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:03:56,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:03:56,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:03:56,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:03:56,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:03:56,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:03:56,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:03:56,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:03:56,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:03:56,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:03:56,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:03:56,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:03:56,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:03:56,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:03:56,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:03:56,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:03:56,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:03:56,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:03:56,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:03:56,108 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:03:56,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:03:56,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:03:56,109 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:03:56,110 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:03:56,110 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:03:56,110 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:03:56,111 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:03:56,111 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:03:56,111 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:03:56,112 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:03:56,112 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:03:56,112 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:03:56,113 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:03:56,113 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:03:56,113 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:03:56,113 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:03:56,113 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:03:56,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:03:56,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:03:56,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:03:56,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:03:56,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:03:56,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:03:56,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:03:56,116 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:03:56,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:03:56,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:03:56,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:03:56,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:03:56,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:03:56,118 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:03:56,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:03:56,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:03:56,119 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:03:56,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:03:56,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:03:56,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:03:56,119 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_625a8258-f6e6-4033-9a84-b513b7b4626e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 215f888dc671693e11ab9e6bd2129df5ac5b9449825c6d5223962a3561afda36 [2022-11-22 02:03:56,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:03:56,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:03:56,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:03:56,420 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:03:56,421 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:03:56,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i [2022-11-22 02:03:59,391 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:04:00,237 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:04:00,237 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i [2022-11-22 02:04:00,310 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/data/108cf9059/a3c2aebd12824ac3832c72a1aa8e2bad/FLAGe4e4deb56 [2022-11-22 02:04:00,327 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/data/108cf9059/a3c2aebd12824ac3832c72a1aa8e2bad [2022-11-22 02:04:00,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:04:00,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:04:00,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:04:00,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:04:00,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:04:00,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:04:00" (1/1) ... [2022-11-22 02:04:00,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f5c513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:00, skipping insertion in model container [2022-11-22 02:04:00,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:04:00" (1/1) ... [2022-11-22 02:04:00,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:04:00,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:04:06,999 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[628967,628980] [2022-11-22 02:04:07,003 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629112,629125] [2022-11-22 02:04:07,003 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629258,629271] [2022-11-22 02:04:07,004 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629423,629436] [2022-11-22 02:04:07,004 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629581,629594] [2022-11-22 02:04:07,005 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629739,629752] [2022-11-22 02:04:07,005 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629897,629910] [2022-11-22 02:04:07,006 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630057,630070] [2022-11-22 02:04:07,006 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630216,630229] [2022-11-22 02:04:07,007 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630355,630368] [2022-11-22 02:04:07,007 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630497,630510] [2022-11-22 02:04:07,008 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630646,630659] [2022-11-22 02:04:07,008 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630785,630798] [2022-11-22 02:04:07,008 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630940,630953] [2022-11-22 02:04:07,009 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631100,631113] [2022-11-22 02:04:07,009 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631251,631264] [2022-11-22 02:04:07,010 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631402,631415] [2022-11-22 02:04:07,012 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631554,631567] [2022-11-22 02:04:07,012 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631703,631716] [2022-11-22 02:04:07,013 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631851,631864] [2022-11-22 02:04:07,013 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632008,632021] [2022-11-22 02:04:07,014 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632157,632170] [2022-11-22 02:04:07,014 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632313,632326] [2022-11-22 02:04:07,014 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632466,632479] [2022-11-22 02:04:07,015 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632612,632625] [2022-11-22 02:04:07,015 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632755,632768] [2022-11-22 02:04:07,016 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632907,632920] [2022-11-22 02:04:07,016 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633053,633066] [2022-11-22 02:04:07,017 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633198,633211] [2022-11-22 02:04:07,017 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633352,633365] [2022-11-22 02:04:07,017 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633503,633516] [2022-11-22 02:04:07,018 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633658,633671] [2022-11-22 02:04:07,018 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633810,633823] [2022-11-22 02:04:07,019 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633965,633978] [2022-11-22 02:04:07,019 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634129,634142] [2022-11-22 02:04:07,020 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634285,634298] [2022-11-22 02:04:07,020 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634449,634462] [2022-11-22 02:04:07,020 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634591,634604] [2022-11-22 02:04:07,021 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634749,634762] [2022-11-22 02:04:07,021 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634916,634929] [2022-11-22 02:04:07,022 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635075,635088] [2022-11-22 02:04:07,022 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635234,635247] [2022-11-22 02:04:07,023 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635383,635396] [2022-11-22 02:04:07,023 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635530,635543] [2022-11-22 02:04:07,023 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635669,635682] [2022-11-22 02:04:07,024 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635832,635845] [2022-11-22 02:04:07,024 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635998,636011] [2022-11-22 02:04:07,025 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636162,636175] [2022-11-22 02:04:07,025 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636327,636340] [2022-11-22 02:04:07,025 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636492,636505] [2022-11-22 02:04:07,026 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636658,636671] [2022-11-22 02:04:07,026 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636823,636836] [2022-11-22 02:04:07,027 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636990,637003] [2022-11-22 02:04:07,027 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637150,637163] [2022-11-22 02:04:07,028 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637312,637325] [2022-11-22 02:04:07,028 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637471,637484] [2022-11-22 02:04:07,029 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637617,637630] [2022-11-22 02:04:07,029 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637760,637773] [2022-11-22 02:04:07,030 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637904,637917] [2022-11-22 02:04:07,030 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638047,638060] [2022-11-22 02:04:07,030 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638191,638204] [2022-11-22 02:04:07,031 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638332,638345] [2022-11-22 02:04:07,031 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638470,638483] [2022-11-22 02:04:07,032 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638628,638641] [2022-11-22 02:04:07,032 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638787,638800] [2022-11-22 02:04:07,032 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638943,638956] [2022-11-22 02:04:07,033 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639092,639105] [2022-11-22 02:04:07,033 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639244,639257] [2022-11-22 02:04:07,034 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639395,639408] [2022-11-22 02:04:07,034 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639544,639557] [2022-11-22 02:04:07,035 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639696,639709] [2022-11-22 02:04:07,035 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639844,639857] [2022-11-22 02:04:07,036 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639997,640010] [2022-11-22 02:04:07,036 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640148,640161] [2022-11-22 02:04:07,037 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640298,640311] [2022-11-22 02:04:07,037 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640445,640458] [2022-11-22 02:04:07,038 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640596,640609] [2022-11-22 02:04:07,038 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640747,640760] [2022-11-22 02:04:07,038 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640895,640908] [2022-11-22 02:04:07,039 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641061,641074] [2022-11-22 02:04:07,039 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641230,641243] [2022-11-22 02:04:07,040 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641397,641410] [2022-11-22 02:04:07,040 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641565,641578] [2022-11-22 02:04:07,040 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641715,641728] [2022-11-22 02:04:07,041 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641862,641875] [2022-11-22 02:04:07,041 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[642023,642036] [2022-11-22 02:04:07,042 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[642193,642206] [2022-11-22 02:04:07,042 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_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[642355,642368] [2022-11-22 02:04:07,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:04:07,169 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:04:07,783 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[628967,628980] [2022-11-22 02:04:07,784 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629112,629125] [2022-11-22 02:04:07,785 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629258,629271] [2022-11-22 02:04:07,785 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629423,629436] [2022-11-22 02:04:07,786 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629581,629594] [2022-11-22 02:04:07,786 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629739,629752] [2022-11-22 02:04:07,786 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629897,629910] [2022-11-22 02:04:07,787 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630057,630070] [2022-11-22 02:04:07,787 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630216,630229] [2022-11-22 02:04:07,788 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630355,630368] [2022-11-22 02:04:07,788 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630497,630510] [2022-11-22 02:04:07,789 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630646,630659] [2022-11-22 02:04:07,789 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630785,630798] [2022-11-22 02:04:07,789 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630940,630953] [2022-11-22 02:04:07,790 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631100,631113] [2022-11-22 02:04:07,790 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631251,631264] [2022-11-22 02:04:07,791 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631402,631415] [2022-11-22 02:04:07,791 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631554,631567] [2022-11-22 02:04:07,791 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631703,631716] [2022-11-22 02:04:07,792 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631851,631864] [2022-11-22 02:04:07,792 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632008,632021] [2022-11-22 02:04:07,793 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632157,632170] [2022-11-22 02:04:07,794 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632313,632326] [2022-11-22 02:04:07,795 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632466,632479] [2022-11-22 02:04:07,795 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632612,632625] [2022-11-22 02:04:07,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632755,632768] [2022-11-22 02:04:07,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632907,632920] [2022-11-22 02:04:07,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633053,633066] [2022-11-22 02:04:07,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633198,633211] [2022-11-22 02:04:07,799 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633352,633365] [2022-11-22 02:04:07,799 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633503,633516] [2022-11-22 02:04:07,799 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633658,633671] [2022-11-22 02:04:07,800 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633810,633823] [2022-11-22 02:04:07,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633965,633978] [2022-11-22 02:04:07,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634129,634142] [2022-11-22 02:04:07,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634285,634298] [2022-11-22 02:04:07,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634449,634462] [2022-11-22 02:04:07,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634591,634604] [2022-11-22 02:04:07,804 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634749,634762] [2022-11-22 02:04:07,805 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634916,634929] [2022-11-22 02:04:07,806 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635075,635088] [2022-11-22 02:04:07,806 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635234,635247] [2022-11-22 02:04:07,807 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635383,635396] [2022-11-22 02:04:07,807 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635530,635543] [2022-11-22 02:04:07,808 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635669,635682] [2022-11-22 02:04:07,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635832,635845] [2022-11-22 02:04:07,810 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635998,636011] [2022-11-22 02:04:07,810 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636162,636175] [2022-11-22 02:04:07,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636327,636340] [2022-11-22 02:04:07,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636492,636505] [2022-11-22 02:04:07,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636658,636671] [2022-11-22 02:04:07,812 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636823,636836] [2022-11-22 02:04:07,812 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636990,637003] [2022-11-22 02:04:07,813 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637150,637163] [2022-11-22 02:04:07,818 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637312,637325] [2022-11-22 02:04:07,819 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637471,637484] [2022-11-22 02:04:07,823 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637617,637630] [2022-11-22 02:04:07,823 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637760,637773] [2022-11-22 02:04:07,824 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637904,637917] [2022-11-22 02:04:07,828 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638047,638060] [2022-11-22 02:04:07,830 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638191,638204] [2022-11-22 02:04:07,830 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638332,638345] [2022-11-22 02:04:07,832 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638470,638483] [2022-11-22 02:04:07,832 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638628,638641] [2022-11-22 02:04:07,832 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638787,638800] [2022-11-22 02:04:07,836 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638943,638956] [2022-11-22 02:04:07,837 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639092,639105] [2022-11-22 02:04:07,837 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639244,639257] [2022-11-22 02:04:07,838 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639395,639408] [2022-11-22 02:04:07,838 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639544,639557] [2022-11-22 02:04:07,839 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639696,639709] [2022-11-22 02:04:07,839 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639844,639857] [2022-11-22 02:04:07,839 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639997,640010] [2022-11-22 02:04:07,840 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640148,640161] [2022-11-22 02:04:07,841 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640298,640311] [2022-11-22 02:04:07,841 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640445,640458] [2022-11-22 02:04:07,842 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640596,640609] [2022-11-22 02:04:07,842 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640747,640760] [2022-11-22 02:04:07,843 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640895,640908] [2022-11-22 02:04:07,844 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641061,641074] [2022-11-22 02:04:07,845 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641230,641243] [2022-11-22 02:04:07,845 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641397,641410] [2022-11-22 02:04:07,845 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641565,641578] [2022-11-22 02:04:07,846 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641715,641728] [2022-11-22 02:04:07,846 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641862,641875] [2022-11-22 02:04:07,847 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[642023,642036] [2022-11-22 02:04:07,847 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[642193,642206] [2022-11-22 02:04:07,847 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[642355,642368] [2022-11-22 02:04:07,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:04:08,219 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:04:08,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:08 WrapperNode [2022-11-22 02:04:08,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:04:08,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:04:08,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:04:08,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:04:08,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:08" (1/1) ... [2022-11-22 02:04:08,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:08" (1/1) ... [2022-11-22 02:04:08,762 INFO L138 Inliner]: procedures = 800, calls = 5122, calls flagged for inlining = 403, calls inlined = 325, statements flattened = 9639 [2022-11-22 02:04:08,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:04:08,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:04:08,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:04:08,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:04:08,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:08" (1/1) ... [2022-11-22 02:04:08,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:08" (1/1) ... [2022-11-22 02:04:08,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:08" (1/1) ... [2022-11-22 02:04:08,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:08" (1/1) ... [2022-11-22 02:04:09,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:08" (1/1) ... [2022-11-22 02:04:09,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:08" (1/1) ... [2022-11-22 02:04:09,159 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:08" (1/1) ... [2022-11-22 02:04:09,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:08" (1/1) ... [2022-11-22 02:04:09,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:04:09,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:04:09,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:04:09,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:04:09,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:08" (1/1) ... [2022-11-22 02:04:09,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:04:09,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:04:09,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:04:09,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:04:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_125 [2022-11-22 02:04:09,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_125 [2022-11-22 02:04:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-22 02:04:09,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-22 02:04:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 02:04:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 02:04:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 02:04:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 02:04:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 02:04:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 02:04:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_rtnetlink__double_lock [2022-11-22 02:04:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_rtnetlink__double_lock [2022-11-22 02:04:09,481 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2022-11-22 02:04:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2022-11-22 02:04:09,481 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2022-11-22 02:04:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2022-11-22 02:04:09,481 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2022-11-22 02:04:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2022-11-22 02:04:09,482 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 02:04:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 02:04:09,482 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-11-22 02:04:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-11-22 02:04:09,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-22 02:04:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-22 02:04:09,483 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 02:04:09,483 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 02:04:09,483 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2022-11-22 02:04:09,483 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2022-11-22 02:04:09,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 02:04:09,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 02:04:09,483 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-11-22 02:04:09,484 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-11-22 02:04:09,484 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2022-11-22 02:04:09,484 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2022-11-22 02:04:09,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-22 02:04:09,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-22 02:04:09,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:04:09,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-22 02:04:09,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-22 02:04:09,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 02:04:09,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 02:04:09,485 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2022-11-22 02:04:09,485 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2022-11-22 02:04:09,485 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 02:04:09,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 02:04:09,486 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 02:04:09,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 02:04:09,486 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-11-22 02:04:09,486 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-11-22 02:04:09,486 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2022-11-22 02:04:09,486 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2022-11-22 02:04:09,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-22 02:04:09,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-22 02:04:09,487 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-22 02:04:09,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-22 02:04:09,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:04:09,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:04:09,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 02:04:09,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 02:04:09,488 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 02:04:09,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 02:04:09,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:04:09,488 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-11-22 02:04:09,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-11-22 02:04:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_start [2022-11-22 02:04:09,489 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_start [2022-11-22 02:04:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2022-11-22 02:04:09,489 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2022-11-22 02:04:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 02:04:09,489 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 02:04:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2022-11-22 02:04:09,490 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2022-11-22 02:04:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2022-11-22 02:04:09,490 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2022-11-22 02:04:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-22 02:04:09,490 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-22 02:04:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:04:09,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:04:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 02:04:09,491 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 02:04:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:04:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_tx [2022-11-22 02:04:09,491 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_tx [2022-11-22 02:04:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2022-11-22 02:04:09,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2022-11-22 02:04:09,492 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-11-22 02:04:09,492 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-11-22 02:04:09,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 02:04:09,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 02:04:09,492 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 02:04:09,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 02:04:09,493 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2022-11-22 02:04:09,493 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2022-11-22 02:04:09,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_122 [2022-11-22 02:04:09,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_122 [2022-11-22 02:04:09,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-22 02:04:09,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-22 02:04:09,493 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-11-22 02:04:09,494 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-11-22 02:04:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-22 02:04:09,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-22 02:04:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:04:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-22 02:04:09,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-22 02:04:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:04:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_stop [2022-11-22 02:04:09,495 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_stop [2022-11-22 02:04:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2022-11-22 02:04:09,495 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2022-11-22 02:04:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 02:04:09,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 02:04:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2022-11-22 02:04:09,496 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2022-11-22 02:04:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_readreg [2022-11-22 02:04:09,496 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_readreg [2022-11-22 02:04:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-22 02:04:09,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-22 02:04:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-22 02:04:09,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-22 02:04:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2022-11-22 02:04:09,497 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2022-11-22 02:04:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:04:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 02:04:09,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 02:04:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2022-11-22 02:04:09,497 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2022-11-22 02:04:09,498 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_conf_ac_parm [2022-11-22 02:04:09,498 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_conf_ac_parm [2022-11-22 02:04:09,498 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-22 02:04:09,498 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-22 02:04:09,498 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2022-11-22 02:04:09,498 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2022-11-22 02:04:09,498 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 02:04:09,499 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 02:04:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2022-11-22 02:04:09,499 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2022-11-22 02:04:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2022-11-22 02:04:09,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2022-11-22 02:04:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 02:04:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2022-11-22 02:04:09,499 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2022-11-22 02:04:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-11-22 02:04:09,500 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-11-22 02:04:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-11-22 02:04:09,500 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-11-22 02:04:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-22 02:04:09,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-22 02:04:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-22 02:04:09,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-22 02:04:09,501 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2022-11-22 02:04:09,501 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2022-11-22 02:04:09,501 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-11-22 02:04:09,501 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-11-22 02:04:09,501 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 02:04:09,501 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 02:04:09,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 02:04:09,502 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 02:04:09,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:04:09,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:04:09,502 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2022-11-22 02:04:09,502 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2022-11-22 02:04:09,502 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2022-11-22 02:04:09,503 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2022-11-22 02:04:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_writereg [2022-11-22 02:04:09,503 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_writereg [2022-11-22 02:04:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-22 02:04:09,503 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-22 02:04:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_generic_frame_duration [2022-11-22 02:04:09,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_generic_frame_duration [2022-11-22 02:04:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-22 02:04:09,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-22 02:04:09,504 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-11-22 02:04:09,504 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-11-22 02:04:09,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-22 02:04:09,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-22 02:04:09,504 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 02:04:09,504 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 02:04:09,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2022-11-22 02:04:09,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2022-11-22 02:04:09,505 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2022-11-22 02:04:09,505 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2022-11-22 02:04:09,505 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-11-22 02:04:09,505 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-11-22 02:04:09,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 02:04:09,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 02:04:09,506 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2022-11-22 02:04:09,506 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2022-11-22 02:04:09,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 02:04:09,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 02:04:09,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-22 02:04:09,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-22 02:04:09,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:04:09,507 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-11-22 02:04:09,507 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-11-22 02:04:09,507 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2022-11-22 02:04:09,507 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2022-11-22 02:04:09,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 02:04:09,507 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-11-22 02:04:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-11-22 02:04:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 02:04:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 02:04:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:04:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-22 02:04:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-22 02:04:09,509 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 02:04:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 02:04:09,509 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2022-11-22 02:04:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2022-11-22 02:04:09,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 02:04:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 02:04:09,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-22 02:04:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-22 02:04:09,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 02:04:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 02:04:09,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 02:04:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 02:04:09,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_5 [2022-11-22 02:04:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_5 [2022-11-22 02:04:09,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_6 [2022-11-22 02:04:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_6 [2022-11-22 02:04:09,511 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-22 02:04:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-22 02:04:09,511 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2022-11-22 02:04:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2022-11-22 02:04:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-22 02:04:09,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-22 02:04:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-11-22 02:04:09,512 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-11-22 02:04:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 02:04:09,512 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 02:04:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-11-22 02:04:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-11-22 02:04:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-11-22 02:04:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-11-22 02:04:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:04:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:04:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:04:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:04:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_init [2022-11-22 02:04:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_init [2022-11-22 02:04:09,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-22 02:04:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-22 02:04:09,514 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam2 [2022-11-22 02:04:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam2 [2022-11-22 02:04:09,514 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-11-22 02:04:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-11-22 02:04:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2022-11-22 02:04:09,515 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2022-11-22 02:04:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_basic_rates [2022-11-22 02:04:09,515 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_basic_rates [2022-11-22 02:04:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2022-11-22 02:04:09,515 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2022-11-22 02:04:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 02:04:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 02:04:09,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 02:04:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2022-11-22 02:04:09,516 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2022-11-22 02:04:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 02:04:09,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 02:04:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-22 02:04:09,516 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-22 02:04:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-11-22 02:04:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-11-22 02:04:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2022-11-22 02:04:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2022-11-22 02:04:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-22 02:04:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-22 02:04:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_set_channel [2022-11-22 02:04:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_set_channel [2022-11-22 02:04:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_rtl8180_priv [2022-11-22 02:04:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_rtl8180_priv [2022-11-22 02:04:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_int_disable [2022-11-22 02:04:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_int_disable [2022-11-22 02:04:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_rtl8180_priv [2022-11-22 02:04:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_rtl8180_priv [2022-11-22 02:04:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2022-11-22 02:04:09,519 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2022-11-22 02:04:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:04:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-22 02:04:09,519 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-22 02:04:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-22 02:04:09,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-22 02:04:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-22 02:04:09,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-22 02:04:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 02:04:09,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 02:04:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2022-11-22 02:04:09,520 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2022-11-22 02:04:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-22 02:04:09,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-22 02:04:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-22 02:04:09,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-22 02:04:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-11-22 02:04:09,521 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-11-22 02:04:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_rx [2022-11-22 02:04:09,521 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_rx [2022-11-22 02:04:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-22 02:04:09,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-22 02:04:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-22 02:04:09,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-22 02:04:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-11-22 02:04:09,522 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-11-22 02:04:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-22 02:04:09,522 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-22 02:04:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2022-11-22 02:04:09,522 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2022-11-22 02:04:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 02:04:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 02:04:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-22 02:04:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-22 02:04:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-22 02:04:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-22 02:04:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 02:04:09,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 02:04:09,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-22 02:04:09,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-22 02:04:09,524 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-22 02:04:09,524 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-22 02:04:09,524 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-11-22 02:04:09,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-11-22 02:04:09,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:04:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2022-11-22 02:04:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2022-11-22 02:04:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_three_wire_io [2022-11-22 02:04:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_three_wire_io [2022-11-22 02:04:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-11-22 02:04:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-11-22 02:04:10,890 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:04:10,894 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:04:11,393 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 02:04:23,016 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:04:25,215 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:04:25,216 INFO L300 CfgBuilder]: Removed 78 assume(true) statements. [2022-11-22 02:04:25,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:04:25 BoogieIcfgContainer [2022-11-22 02:04:25,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:04:25,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:04:25,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:04:25,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:04:25,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:04:00" (1/3) ... [2022-11-22 02:04:25,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111f2f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:04:25, skipping insertion in model container [2022-11-22 02:04:25,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:08" (2/3) ... [2022-11-22 02:04:25,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111f2f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:04:25, skipping insertion in model container [2022-11-22 02:04:25,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:04:25" (3/3) ... [2022-11-22 02:04:25,238 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i [2022-11-22 02:04:25,260 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:04:25,261 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2022-11-22 02:04:25,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:04:25,427 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;@b8945a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:04:25,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-22 02:04:25,445 INFO L276 IsEmpty]: Start isEmpty. Operand has 3499 states, 1710 states have (on average 1.2719298245614035) internal successors, (2175), 1910 states have internal predecessors, (2175), 1683 states have call successors, (1683), 155 states have call predecessors, (1683), 154 states have return successors, (1673), 1629 states have call predecessors, (1673), 1673 states have call successors, (1673) [2022-11-22 02:04:25,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-22 02:04:25,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:25,459 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-22 02:04:25,460 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:04:25,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:25,467 INFO L85 PathProgramCache]: Analyzing trace with hash -469019139, now seen corresponding path program 1 times [2022-11-22 02:04:25,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:25,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366228635] [2022-11-22 02:04:25,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:25,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:27,123 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:04:27,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:27,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366228635] [2022-11-22 02:04:27,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366228635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:27,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:27,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:04:27,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117216543] [2022-11-22 02:04:27,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:27,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:04:27,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:27,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:04:27,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:04:27,200 INFO L87 Difference]: Start difference. First operand has 3499 states, 1710 states have (on average 1.2719298245614035) internal successors, (2175), 1910 states have internal predecessors, (2175), 1683 states have call successors, (1683), 155 states have call predecessors, (1683), 154 states have return successors, (1673), 1629 states have call predecessors, (1673), 1673 states have call successors, (1673) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 02:04:30,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:04:33,283 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 02:04:34,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:34,859 INFO L93 Difference]: Finished difference Result 6768 states and 10790 transitions. [2022-11-22 02:04:34,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:04:34,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 47 [2022-11-22 02:04:34,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:34,907 INFO L225 Difference]: With dead ends: 6768 [2022-11-22 02:04:34,908 INFO L226 Difference]: Without dead ends: 3273 [2022-11-22 02:04:34,947 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 02:04:34,952 INFO L413 NwaCegarLoop]: 4676 mSDtfsCounter, 4982 mSDsluCounter, 4718 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4995 SdHoareTripleChecker+Valid, 9394 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:34,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4995 Valid, 9394 Invalid, 739 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 737 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-11-22 02:04:34,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2022-11-22 02:04:35,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 3267. [2022-11-22 02:04:35,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3267 states, 1480 states have (on average 1.2351351351351352) internal successors, (1828), 1601 states have internal predecessors, (1828), 1598 states have call successors, (1598), 162 states have call predecessors, (1598), 161 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:04:35,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3267 states to 3267 states and 5022 transitions. [2022-11-22 02:04:35,402 INFO L78 Accepts]: Start accepts. Automaton has 3267 states and 5022 transitions. Word has length 47 [2022-11-22 02:04:35,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:35,404 INFO L495 AbstractCegarLoop]: Abstraction has 3267 states and 5022 transitions. [2022-11-22 02:04:35,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 02:04:35,404 INFO L276 IsEmpty]: Start isEmpty. Operand 3267 states and 5022 transitions. [2022-11-22 02:04:35,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-22 02:04:35,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:35,409 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-22 02:04:35,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:04:35,410 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:04:35,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:35,411 INFO L85 PathProgramCache]: Analyzing trace with hash 2088706690, now seen corresponding path program 1 times [2022-11-22 02:04:35,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:35,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200118659] [2022-11-22 02:04:35,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:35,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:36,264 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:04:36,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:36,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200118659] [2022-11-22 02:04:36,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200118659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:36,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:36,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:04:36,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228021254] [2022-11-22 02:04:36,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:36,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:04:36,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:36,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:04:36,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:04:36,270 INFO L87 Difference]: Start difference. First operand 3267 states and 5022 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, (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 02:04:39,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:04:41,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:42,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:43,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:43,982 INFO L93 Difference]: Finished difference Result 3273 states and 5031 transitions. [2022-11-22 02:04:43,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:04:43,983 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, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 52 [2022-11-22 02:04:43,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:44,011 INFO L225 Difference]: With dead ends: 3273 [2022-11-22 02:04:44,011 INFO L226 Difference]: Without dead ends: 3271 [2022-11-22 02:04:44,016 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 02:04:44,016 INFO L413 NwaCegarLoop]: 4648 mSDtfsCounter, 4965 mSDsluCounter, 4675 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4973 SdHoareTripleChecker+Valid, 9323 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:44,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4973 Valid, 9323 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-11-22 02:04:44,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2022-11-22 02:04:44,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 3267. [2022-11-22 02:04:44,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3267 states, 1480 states have (on average 1.2344594594594596) internal successors, (1827), 1600 states have internal predecessors, (1827), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:04:44,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3267 states to 3267 states and 5021 transitions. [2022-11-22 02:04:44,343 INFO L78 Accepts]: Start accepts. Automaton has 3267 states and 5021 transitions. Word has length 52 [2022-11-22 02:04:44,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:44,344 INFO L495 AbstractCegarLoop]: Abstraction has 3267 states and 5021 transitions. [2022-11-22 02:04:44,345 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, (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 02:04:44,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3267 states and 5021 transitions. [2022-11-22 02:04:44,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-22 02:04:44,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:44,355 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-22 02:04:44,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:04:44,355 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:04:44,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:44,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1119624584, now seen corresponding path program 1 times [2022-11-22 02:04:44,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:44,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651216957] [2022-11-22 02:04:44,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:44,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:45,162 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:04:45,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:45,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651216957] [2022-11-22 02:04:45,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651216957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:45,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:45,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:04:45,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065784654] [2022-11-22 02:04:45,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:45,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:04:45,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:45,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:04:45,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:04:45,165 INFO L87 Difference]: Start difference. First operand 3267 states and 5021 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 02:04:48,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:04:51,158 WARN L539 Checker$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 02:04:52,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:52,261 INFO L93 Difference]: Finished difference Result 3273 states and 5035 transitions. [2022-11-22 02:04:52,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:04:52,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2022-11-22 02:04:52,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:52,289 INFO L225 Difference]: With dead ends: 3273 [2022-11-22 02:04:52,290 INFO L226 Difference]: Without dead ends: 3271 [2022-11-22 02:04:52,294 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 02:04:52,295 INFO L413 NwaCegarLoop]: 4646 mSDtfsCounter, 4949 mSDsluCounter, 4686 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4962 SdHoareTripleChecker+Valid, 9332 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:52,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4962 Valid, 9332 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-11-22 02:04:52,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2022-11-22 02:04:52,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 3265. [2022-11-22 02:04:52,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3265 states, 1479 states have (on average 1.2339418526031103) internal successors, (1825), 1598 states have internal predecessors, (1825), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:04:52,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3265 states to 3265 states and 5019 transitions. [2022-11-22 02:04:52,748 INFO L78 Accepts]: Start accepts. Automaton has 3265 states and 5019 transitions. Word has length 57 [2022-11-22 02:04:52,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:52,750 INFO L495 AbstractCegarLoop]: Abstraction has 3265 states and 5019 transitions. [2022-11-22 02:04:52,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 02:04:52,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3265 states and 5019 transitions. [2022-11-22 02:04:52,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-22 02:04:52,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:52,754 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-22 02:04:52,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:04:52,755 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:04:52,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:52,755 INFO L85 PathProgramCache]: Analyzing trace with hash -978489621, now seen corresponding path program 1 times [2022-11-22 02:04:52,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:52,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685090931] [2022-11-22 02:04:52,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:52,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:53,688 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:04:53,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:53,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685090931] [2022-11-22 02:04:53,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685090931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:53,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:53,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:04:53,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647982854] [2022-11-22 02:04:53,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:53,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:04:53,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:53,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:04:53,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:04:53,691 INFO L87 Difference]: Start difference. First operand 3265 states and 5019 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 02:04:56,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:04:58,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:04:59,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:59,530 INFO L93 Difference]: Finished difference Result 3269 states and 5027 transitions. [2022-11-22 02:04:59,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:04:59,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2022-11-22 02:04:59,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:59,556 INFO L225 Difference]: With dead ends: 3269 [2022-11-22 02:04:59,556 INFO L226 Difference]: Without dead ends: 3267 [2022-11-22 02:04:59,560 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 02:04:59,561 INFO L413 NwaCegarLoop]: 4644 mSDtfsCounter, 4959 mSDsluCounter, 4671 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4967 SdHoareTripleChecker+Valid, 9315 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:59,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4967 Valid, 9315 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-22 02:04:59,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2022-11-22 02:04:59,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 3263. [2022-11-22 02:04:59,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3263 states, 1478 states have (on average 1.2334235453315292) internal successors, (1823), 1596 states have internal predecessors, (1823), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:04:59,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 5017 transitions. [2022-11-22 02:04:59,970 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 5017 transitions. Word has length 62 [2022-11-22 02:04:59,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:59,971 INFO L495 AbstractCegarLoop]: Abstraction has 3263 states and 5017 transitions. [2022-11-22 02:04:59,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 02:04:59,971 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 5017 transitions. [2022-11-22 02:04:59,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-22 02:04:59,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:59,974 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:59,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:04:59,975 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:04:59,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:59,975 INFO L85 PathProgramCache]: Analyzing trace with hash 851357546, now seen corresponding path program 1 times [2022-11-22 02:04:59,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:59,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989439384] [2022-11-22 02:04:59,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:59,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:00,645 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:05:00,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:00,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989439384] [2022-11-22 02:05:00,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989439384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:00,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:00,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:05:00,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984514120] [2022-11-22 02:05:00,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:00,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:05:00,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:00,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:05:00,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:05:00,649 INFO L87 Difference]: Start difference. First operand 3263 states and 5017 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 02:05:03,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:05:05,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:07,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:07,944 INFO L93 Difference]: Finished difference Result 3267 states and 5025 transitions. [2022-11-22 02:05:07,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:05:07,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2022-11-22 02:05:07,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:07,971 INFO L225 Difference]: With dead ends: 3267 [2022-11-22 02:05:07,972 INFO L226 Difference]: Without dead ends: 3265 [2022-11-22 02:05:07,975 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 02:05:07,976 INFO L413 NwaCegarLoop]: 4642 mSDtfsCounter, 4956 mSDsluCounter, 4669 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4964 SdHoareTripleChecker+Valid, 9311 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:07,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4964 Valid, 9311 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-22 02:05:07,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2022-11-22 02:05:08,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 3261. [2022-11-22 02:05:08,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3261 states, 1477 states have (on average 1.2329045362220719) internal successors, (1821), 1594 states have internal predecessors, (1821), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:05:08,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 5015 transitions. [2022-11-22 02:05:08,386 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 5015 transitions. Word has length 67 [2022-11-22 02:05:08,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:08,387 INFO L495 AbstractCegarLoop]: Abstraction has 3261 states and 5015 transitions. [2022-11-22 02:05:08,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 02:05:08,387 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 5015 transitions. [2022-11-22 02:05:08,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-22 02:05:08,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:08,389 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-22 02:05:08,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:05:08,389 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:05:08,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:08,390 INFO L85 PathProgramCache]: Analyzing trace with hash -151065551, now seen corresponding path program 1 times [2022-11-22 02:05:08,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:08,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072927745] [2022-11-22 02:05:08,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:08,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:09,111 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:05:09,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:09,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072927745] [2022-11-22 02:05:09,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072927745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:09,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:09,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:05:09,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739581473] [2022-11-22 02:05:09,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:09,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:05:09,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:09,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:05:09,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:05:09,114 INFO L87 Difference]: Start difference. First operand 3261 states and 5015 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 02:05:12,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:05:14,600 WARN L539 Checker$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 02:05:15,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:15,677 INFO L93 Difference]: Finished difference Result 3267 states and 5029 transitions. [2022-11-22 02:05:15,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:05:15,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-11-22 02:05:15,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:15,702 INFO L225 Difference]: With dead ends: 3267 [2022-11-22 02:05:15,702 INFO L226 Difference]: Without dead ends: 3265 [2022-11-22 02:05:15,704 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 02:05:15,705 INFO L413 NwaCegarLoop]: 4640 mSDtfsCounter, 4940 mSDsluCounter, 4680 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 9320 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:15,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 9320 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-11-22 02:05:15,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2022-11-22 02:05:15,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 3259. [2022-11-22 02:05:16,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3259 states, 1476 states have (on average 1.2323848238482384) internal successors, (1819), 1592 states have internal predecessors, (1819), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:05:16,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3259 states to 3259 states and 5013 transitions. [2022-11-22 02:05:16,025 INFO L78 Accepts]: Start accepts. Automaton has 3259 states and 5013 transitions. Word has length 72 [2022-11-22 02:05:16,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:16,025 INFO L495 AbstractCegarLoop]: Abstraction has 3259 states and 5013 transitions. [2022-11-22 02:05:16,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 02:05:16,026 INFO L276 IsEmpty]: Start isEmpty. Operand 3259 states and 5013 transitions. [2022-11-22 02:05:16,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-22 02:05:16,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:16,027 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:16,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:05:16,028 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:05:16,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:16,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2118301298, now seen corresponding path program 1 times [2022-11-22 02:05:16,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:16,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460323304] [2022-11-22 02:05:16,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:16,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:16,572 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-22 02:05:16,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:16,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460323304] [2022-11-22 02:05:16,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460323304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:16,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:16,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:05:16,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800780581] [2022-11-22 02:05:16,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:16,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:05:16,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:16,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:05:16,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:05:16,577 INFO L87 Difference]: Start difference. First operand 3259 states and 5013 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 02:05:19,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:05:21,806 WARN L539 Checker$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 02:05:22,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:22,375 INFO L93 Difference]: Finished difference Result 6502 states and 10008 transitions. [2022-11-22 02:05:22,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:05:22,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 89 [2022-11-22 02:05:22,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:22,403 INFO L225 Difference]: With dead ends: 6502 [2022-11-22 02:05:22,404 INFO L226 Difference]: Without dead ends: 3261 [2022-11-22 02:05:22,428 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 02:05:22,428 INFO L413 NwaCegarLoop]: 4636 mSDtfsCounter, 4951 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4962 SdHoareTripleChecker+Valid, 4676 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:22,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4962 Valid, 4676 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 372 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-11-22 02:05:22,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3261 states. [2022-11-22 02:05:22,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3261 to 3255. [2022-11-22 02:05:22,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3255 states, 1473 states have (on average 1.231500339443313) internal successors, (1814), 1588 states have internal predecessors, (1814), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:05:22,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 5008 transitions. [2022-11-22 02:05:22,806 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 5008 transitions. Word has length 89 [2022-11-22 02:05:22,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:22,808 INFO L495 AbstractCegarLoop]: Abstraction has 3255 states and 5008 transitions. [2022-11-22 02:05:22,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 02:05:22,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 5008 transitions. [2022-11-22 02:05:22,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-22 02:05:22,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:22,817 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-22 02:05:22,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:05:22,818 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:05:22,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:22,818 INFO L85 PathProgramCache]: Analyzing trace with hash 87427178, now seen corresponding path program 1 times [2022-11-22 02:05:22,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:22,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545650231] [2022-11-22 02:05:22,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:22,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:23,561 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:05:23,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:23,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545650231] [2022-11-22 02:05:23,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545650231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:23,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:23,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:05:23,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249351020] [2022-11-22 02:05:23,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:23,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:05:23,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:23,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:05:23,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:05:23,564 INFO L87 Difference]: Start difference. First operand 3255 states and 5008 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 02:05:26,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:05:29,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:29,619 INFO L93 Difference]: Finished difference Result 3259 states and 5016 transitions. [2022-11-22 02:05:29,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:05:29,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 77 [2022-11-22 02:05:29,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:29,645 INFO L225 Difference]: With dead ends: 3259 [2022-11-22 02:05:29,645 INFO L226 Difference]: Without dead ends: 3257 [2022-11-22 02:05:29,649 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 02:05:29,650 INFO L413 NwaCegarLoop]: 4633 mSDtfsCounter, 4945 mSDsluCounter, 4660 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 9293 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:29,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 9293 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-22 02:05:29,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2022-11-22 02:05:30,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 3253. [2022-11-22 02:05:30,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 1472 states have (on average 1.2309782608695652) internal successors, (1812), 1586 states have internal predecessors, (1812), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:05:30,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 5006 transitions. [2022-11-22 02:05:30,052 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 5006 transitions. Word has length 77 [2022-11-22 02:05:30,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:30,053 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 5006 transitions. [2022-11-22 02:05:30,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 02:05:30,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 5006 transitions. [2022-11-22 02:05:30,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-22 02:05:30,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:30,055 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:30,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:05:30,056 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:05:30,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:30,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1052167359, now seen corresponding path program 1 times [2022-11-22 02:05:30,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:30,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53305561] [2022-11-22 02:05:30,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:30,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:30,640 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-22 02:05:30,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:30,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53305561] [2022-11-22 02:05:30,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53305561] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:05:30,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542566933] [2022-11-22 02:05:30,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:30,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:05:30,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:05:30,647 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:05:30,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:05:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:32,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 4661 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 02:05:32,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:05:32,577 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-22 02:05:32,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:05:32,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542566933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:32,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:05:32,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-22 02:05:32,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391650096] [2022-11-22 02:05:32,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:32,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:05:32,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:32,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:05:32,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:05:32,579 INFO L87 Difference]: Start difference. First operand 3253 states and 5006 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 02:05:35,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:05:37,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:37,234 INFO L93 Difference]: Finished difference Result 6488 states and 9988 transitions. [2022-11-22 02:05:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:05:37,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2022-11-22 02:05:37,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:37,260 INFO L225 Difference]: With dead ends: 6488 [2022-11-22 02:05:37,260 INFO L226 Difference]: Without dead ends: 3253 [2022-11-22 02:05:37,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:05:37,283 INFO L413 NwaCegarLoop]: 4629 mSDtfsCounter, 4951 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4957 SdHoareTripleChecker+Valid, 4656 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:37,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4957 Valid, 4656 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 371 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-22 02:05:37,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3253 states. [2022-11-22 02:05:37,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3253 to 3249. [2022-11-22 02:05:37,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3249 states, 1469 states have (on average 1.2300884955752212) internal successors, (1807), 1582 states have internal predecessors, (1807), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:05:37,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 5001 transitions. [2022-11-22 02:05:37,714 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 5001 transitions. Word has length 94 [2022-11-22 02:05:37,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:37,714 INFO L495 AbstractCegarLoop]: Abstraction has 3249 states and 5001 transitions. [2022-11-22 02:05:37,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 02:05:37,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 5001 transitions. [2022-11-22 02:05:37,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-22 02:05:37,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:37,716 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-22 02:05:37,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 02:05:37,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:05:37,931 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:05:37,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:37,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1133578707, now seen corresponding path program 1 times [2022-11-22 02:05:37,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:37,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866550838] [2022-11-22 02:05:37,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:37,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:38,617 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:05:38,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:38,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866550838] [2022-11-22 02:05:38,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866550838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:38,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:38,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:05:38,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512748342] [2022-11-22 02:05:38,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:38,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:05:38,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:38,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:05:38,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:05:38,620 INFO L87 Difference]: Start difference. First operand 3249 states and 5001 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 02:05:42,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:05:45,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:45,514 INFO L93 Difference]: Finished difference Result 3253 states and 5009 transitions. [2022-11-22 02:05:45,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:05:45,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 82 [2022-11-22 02:05:45,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:45,536 INFO L225 Difference]: With dead ends: 3253 [2022-11-22 02:05:45,537 INFO L226 Difference]: Without dead ends: 3251 [2022-11-22 02:05:45,540 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 02:05:45,541 INFO L413 NwaCegarLoop]: 4626 mSDtfsCounter, 4941 mSDsluCounter, 4649 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 9275 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:45,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4949 Valid, 9275 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-22 02:05:45,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3251 states. [2022-11-22 02:05:45,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3251 to 3247. [2022-11-22 02:05:45,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3247 states, 1468 states have (on average 1.2295640326975477) internal successors, (1805), 1580 states have internal predecessors, (1805), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:05:45,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 4999 transitions. [2022-11-22 02:05:45,982 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 4999 transitions. Word has length 82 [2022-11-22 02:05:45,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:45,982 INFO L495 AbstractCegarLoop]: Abstraction has 3247 states and 4999 transitions. [2022-11-22 02:05:45,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 02:05:45,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 4999 transitions. [2022-11-22 02:05:45,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-22 02:05:45,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:45,984 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:45,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:05:45,985 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:05:45,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:45,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1552721328, now seen corresponding path program 1 times [2022-11-22 02:05:45,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:45,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90534750] [2022-11-22 02:05:45,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:45,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:46,674 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:05:46,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:46,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90534750] [2022-11-22 02:05:46,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90534750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:46,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:46,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:05:46,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582379702] [2022-11-22 02:05:46,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:46,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:05:46,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:46,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:05:46,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:05:46,677 INFO L87 Difference]: Start difference. First operand 3247 states and 4999 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 02:05:50,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:05:52,546 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 02:05:54,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:54,028 INFO L93 Difference]: Finished difference Result 3253 states and 5013 transitions. [2022-11-22 02:05:54,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:05:54,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 84 [2022-11-22 02:05:54,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:54,049 INFO L225 Difference]: With dead ends: 3253 [2022-11-22 02:05:54,050 INFO L226 Difference]: Without dead ends: 3251 [2022-11-22 02:05:54,053 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 02:05:54,054 INFO L413 NwaCegarLoop]: 4624 mSDtfsCounter, 4920 mSDsluCounter, 4664 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4933 SdHoareTripleChecker+Valid, 9288 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:54,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4933 Valid, 9288 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-11-22 02:05:54,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3251 states. [2022-11-22 02:05:54,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3251 to 3245. [2022-11-22 02:05:54,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3245 states, 1467 states have (on average 1.229038854805726) internal successors, (1803), 1578 states have internal predecessors, (1803), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:05:54,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3245 states to 3245 states and 4997 transitions. [2022-11-22 02:05:54,595 INFO L78 Accepts]: Start accepts. Automaton has 3245 states and 4997 transitions. Word has length 84 [2022-11-22 02:05:54,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:54,597 INFO L495 AbstractCegarLoop]: Abstraction has 3245 states and 4997 transitions. [2022-11-22 02:05:54,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 02:05:54,598 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4997 transitions. [2022-11-22 02:05:54,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-22 02:05:54,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:54,600 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:05:54,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:05:54,600 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:05:54,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:54,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1625311595, now seen corresponding path program 1 times [2022-11-22 02:05:54,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:05:54,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698086073] [2022-11-22 02:05:54,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:54,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:05:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:55,285 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:05:55,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:05:55,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698086073] [2022-11-22 02:05:55,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698086073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:55,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:55,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:05:55,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195408887] [2022-11-22 02:05:55,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:55,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:05:55,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:55,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:05:55,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:05:55,288 INFO L87 Difference]: Start difference. First operand 3245 states and 4997 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-22 02:05:58,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:06:01,459 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 02:06:02,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:02,461 INFO L93 Difference]: Finished difference Result 3249 states and 5005 transitions. [2022-11-22 02:06:02,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:06:02,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 89 [2022-11-22 02:06:02,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:02,481 INFO L225 Difference]: With dead ends: 3249 [2022-11-22 02:06:02,481 INFO L226 Difference]: Without dead ends: 3247 [2022-11-22 02:06:02,484 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 02:06:02,485 INFO L413 NwaCegarLoop]: 4622 mSDtfsCounter, 4932 mSDsluCounter, 4649 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4940 SdHoareTripleChecker+Valid, 9271 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:02,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4940 Valid, 9271 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-11-22 02:06:02,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2022-11-22 02:06:03,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 3243. [2022-11-22 02:06:03,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3243 states, 1466 states have (on average 1.228512960436562) internal successors, (1801), 1576 states have internal predecessors, (1801), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:06:03,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4995 transitions. [2022-11-22 02:06:03,056 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4995 transitions. Word has length 89 [2022-11-22 02:06:03,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:03,057 INFO L495 AbstractCegarLoop]: Abstraction has 3243 states and 4995 transitions. [2022-11-22 02:06:03,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-22 02:06:03,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4995 transitions. [2022-11-22 02:06:03,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-22 02:06:03,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:03,059 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-22 02:06:03,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 02:06:03,059 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:06:03,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:03,060 INFO L85 PathProgramCache]: Analyzing trace with hash -783766973, now seen corresponding path program 1 times [2022-11-22 02:06:03,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:03,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295736564] [2022-11-22 02:06:03,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:03,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:03,770 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:06:03,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:03,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295736564] [2022-11-22 02:06:03,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295736564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:03,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:03,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:06:03,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609027822] [2022-11-22 02:06:03,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:03,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:06:03,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:03,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:06:03,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:06:03,773 INFO L87 Difference]: Start difference. First operand 3243 states and 4995 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 02:06:06,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:06:09,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:10,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:10,792 INFO L93 Difference]: Finished difference Result 3247 states and 5003 transitions. [2022-11-22 02:06:10,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:06:10,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 94 [2022-11-22 02:06:10,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:10,808 INFO L225 Difference]: With dead ends: 3247 [2022-11-22 02:06:10,809 INFO L226 Difference]: Without dead ends: 3245 [2022-11-22 02:06:10,811 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 02:06:10,812 INFO L413 NwaCegarLoop]: 4620 mSDtfsCounter, 4929 mSDsluCounter, 4647 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4937 SdHoareTripleChecker+Valid, 9267 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:10,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4937 Valid, 9267 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-22 02:06:10,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2022-11-22 02:06:11,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3241. [2022-11-22 02:06:11,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3241 states, 1465 states have (on average 1.227986348122867) internal successors, (1799), 1574 states have internal predecessors, (1799), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:06:11,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 4993 transitions. [2022-11-22 02:06:11,334 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 4993 transitions. Word has length 94 [2022-11-22 02:06:11,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:11,334 INFO L495 AbstractCegarLoop]: Abstraction has 3241 states and 4993 transitions. [2022-11-22 02:06:11,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 02:06:11,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 4993 transitions. [2022-11-22 02:06:11,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-22 02:06:11,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:11,338 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-22 02:06:11,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 02:06:11,338 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:06:11,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:11,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1721994713, now seen corresponding path program 1 times [2022-11-22 02:06:11,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:11,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509901754] [2022-11-22 02:06:11,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:11,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:12,030 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:06:12,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:12,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509901754] [2022-11-22 02:06:12,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509901754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:12,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:12,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:06:12,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201017487] [2022-11-22 02:06:12,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:12,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:06:12,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:12,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:06:12,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:06:12,033 INFO L87 Difference]: Start difference. First operand 3241 states and 4993 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 02:06:15,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:06:17,745 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 02:06:19,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:19,423 INFO L93 Difference]: Finished difference Result 3247 states and 5007 transitions. [2022-11-22 02:06:19,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:06:19,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2022-11-22 02:06:19,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:19,442 INFO L225 Difference]: With dead ends: 3247 [2022-11-22 02:06:19,442 INFO L226 Difference]: Without dead ends: 3245 [2022-11-22 02:06:19,446 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 02:06:19,446 INFO L413 NwaCegarLoop]: 4618 mSDtfsCounter, 4913 mSDsluCounter, 4658 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4926 SdHoareTripleChecker+Valid, 9276 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:19,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4926 Valid, 9276 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-11-22 02:06:19,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2022-11-22 02:06:20,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3239. [2022-11-22 02:06:20,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3239 states, 1464 states have (on average 1.2274590163934427) internal successors, (1797), 1572 states have internal predecessors, (1797), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:06:20,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3239 states to 3239 states and 4991 transitions. [2022-11-22 02:06:20,069 INFO L78 Accepts]: Start accepts. Automaton has 3239 states and 4991 transitions. Word has length 99 [2022-11-22 02:06:20,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:20,070 INFO L495 AbstractCegarLoop]: Abstraction has 3239 states and 4991 transitions. [2022-11-22 02:06:20,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 02:06:20,070 INFO L276 IsEmpty]: Start isEmpty. Operand 3239 states and 4991 transitions. [2022-11-22 02:06:20,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-22 02:06:20,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:20,072 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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 02:06:20,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 02:06:20,072 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:06:20,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:20,073 INFO L85 PathProgramCache]: Analyzing trace with hash 508296982, now seen corresponding path program 1 times [2022-11-22 02:06:20,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:20,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601519736] [2022-11-22 02:06:20,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:20,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:20,681 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:06:20,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:20,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601519736] [2022-11-22 02:06:20,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601519736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:20,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:20,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:06:20,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117040884] [2022-11-22 02:06:20,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:20,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:06:20,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:20,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:06:20,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:06:20,686 INFO L87 Difference]: Start difference. First operand 3239 states and 4991 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 02:06:23,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:06:26,745 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 02:06:27,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:27,787 INFO L93 Difference]: Finished difference Result 3243 states and 4999 transitions. [2022-11-22 02:06:27,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:06:27,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 104 [2022-11-22 02:06:27,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:27,800 INFO L225 Difference]: With dead ends: 3243 [2022-11-22 02:06:27,800 INFO L226 Difference]: Without dead ends: 3241 [2022-11-22 02:06:27,803 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 02:06:27,804 INFO L413 NwaCegarLoop]: 4616 mSDtfsCounter, 4923 mSDsluCounter, 4643 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4931 SdHoareTripleChecker+Valid, 9259 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:27,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4931 Valid, 9259 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-11-22 02:06:27,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3241 states. [2022-11-22 02:06:28,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3241 to 3237. [2022-11-22 02:06:28,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3237 states, 1463 states have (on average 1.226930963773069) internal successors, (1795), 1570 states have internal predecessors, (1795), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:06:28,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 4989 transitions. [2022-11-22 02:06:28,307 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 4989 transitions. Word has length 104 [2022-11-22 02:06:28,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:28,307 INFO L495 AbstractCegarLoop]: Abstraction has 3237 states and 4989 transitions. [2022-11-22 02:06:28,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 02:06:28,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 4989 transitions. [2022-11-22 02:06:28,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 02:06:28,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:28,309 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:28,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 02:06:28,310 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:06:28,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:28,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1967701786, now seen corresponding path program 1 times [2022-11-22 02:06:28,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:28,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214366780] [2022-11-22 02:06:28,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:28,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:28,822 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:06:28,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:28,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214366780] [2022-11-22 02:06:28,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214366780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:28,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:28,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:06:28,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094770899] [2022-11-22 02:06:28,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:28,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:06:28,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:28,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:06:28,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:06:28,825 INFO L87 Difference]: Start difference. First operand 3237 states and 4989 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 02:06:31,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:06:33,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:35,729 WARN L539 Checker$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 02:06:37,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:37,237 INFO L93 Difference]: Finished difference Result 3241 states and 4997 transitions. [2022-11-22 02:06:37,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:06:37,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 109 [2022-11-22 02:06:37,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:37,252 INFO L225 Difference]: With dead ends: 3241 [2022-11-22 02:06:37,252 INFO L226 Difference]: Without dead ends: 3239 [2022-11-22 02:06:37,255 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 02:06:37,256 INFO L413 NwaCegarLoop]: 4614 mSDtfsCounter, 4920 mSDsluCounter, 4641 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4928 SdHoareTripleChecker+Valid, 9255 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:37,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4928 Valid, 9255 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-11-22 02:06:37,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3239 states. [2022-11-22 02:06:37,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3239 to 3235. [2022-11-22 02:06:37,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3235 states, 1462 states have (on average 1.2264021887824896) internal successors, (1793), 1568 states have internal predecessors, (1793), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-22 02:06:37,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3235 states to 3235 states and 4987 transitions. [2022-11-22 02:06:37,916 INFO L78 Accepts]: Start accepts. Automaton has 3235 states and 4987 transitions. Word has length 109 [2022-11-22 02:06:37,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:37,917 INFO L495 AbstractCegarLoop]: Abstraction has 3235 states and 4987 transitions. [2022-11-22 02:06:37,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 02:06:37,918 INFO L276 IsEmpty]: Start isEmpty. Operand 3235 states and 4987 transitions. [2022-11-22 02:06:37,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-22 02:06:37,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:37,921 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:37,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 02:06:37,921 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_net_rtnetlink__double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:06:37,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:37,922 INFO L85 PathProgramCache]: Analyzing trace with hash -717268787, now seen corresponding path program 1 times [2022-11-22 02:06:37,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:37,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527736919] [2022-11-22 02:06:37,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:37,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:38,967 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-22 02:06:38,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:38,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527736919] [2022-11-22 02:06:38,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527736919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:38,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:38,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:06:38,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330562844] [2022-11-22 02:06:38,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:38,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:06:38,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:38,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:06:38,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:06:38,970 INFO L87 Difference]: Start difference. First operand 3235 states and 4987 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 02:06:42,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:06:45,808 WARN L539 Checker$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 02:06:46,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:50,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:50,478 INFO L93 Difference]: Finished difference Result 5457 states and 8498 transitions. [2022-11-22 02:06:50,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:06:50,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 131 [2022-11-22 02:06:50,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:50,523 INFO L225 Difference]: With dead ends: 5457 [2022-11-22 02:06:50,523 INFO L226 Difference]: Without dead ends: 5455 [2022-11-22 02:06:50,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 02:06:50,530 INFO L413 NwaCegarLoop]: 5868 mSDtfsCounter, 4863 mSDsluCounter, 15129 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4870 SdHoareTripleChecker+Valid, 20997 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:50,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4870 Valid, 20997 Invalid, 1292 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1288 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2022-11-22 02:06:50,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5455 states. [2022-11-22 02:06:51,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5455 to 5434. [2022-11-22 02:06:51,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 2341 states have (on average 1.2093122597180692) internal successors, (2831), 2508 states have internal predecessors, (2831), 2814 states have call successors, (2814), 268 states have call predecessors, (2814), 266 states have return successors, (2828), 2738 states have call predecessors, (2828), 2812 states have call successors, (2828) [2022-11-22 02:06:51,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 8473 transitions. [2022-11-22 02:06:51,777 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 8473 transitions. Word has length 131 [2022-11-22 02:06:51,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:51,777 INFO L495 AbstractCegarLoop]: Abstraction has 5434 states and 8473 transitions. [2022-11-22 02:06:51,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 02:06:51,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 8473 transitions. [2022-11-22 02:06:51,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:06:51,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:51,779 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-22 02:06:51,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 02:06:51,780 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:06:51,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:51,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1571534449, now seen corresponding path program 1 times [2022-11-22 02:06:51,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:51,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995693744] [2022-11-22 02:06:51,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:51,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:52,554 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:06:52,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:52,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995693744] [2022-11-22 02:06:52,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995693744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:52,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:52,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:06:52,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100951172] [2022-11-22 02:06:52,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:52,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:06:52,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:52,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:06:52,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:06:52,559 INFO L87 Difference]: Start difference. First operand 5434 states and 8473 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 02:06:56,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:06:59,616 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 02:07:01,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:01,285 INFO L93 Difference]: Finished difference Result 5438 states and 8476 transitions. [2022-11-22 02:07:01,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:07:01,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 114 [2022-11-22 02:07:01,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:01,306 INFO L225 Difference]: With dead ends: 5438 [2022-11-22 02:07:01,306 INFO L226 Difference]: Without dead ends: 5436 [2022-11-22 02:07:01,310 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 02:07:01,311 INFO L413 NwaCegarLoop]: 4612 mSDtfsCounter, 4917 mSDsluCounter, 4639 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4925 SdHoareTripleChecker+Valid, 9251 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:01,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4925 Valid, 9251 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-11-22 02:07:01,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5436 states. [2022-11-22 02:07:02,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5436 to 5434. [2022-11-22 02:07:02,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 2341 states have (on average 1.2088850918410936) internal successors, (2830), 2508 states have internal predecessors, (2830), 2814 states have call successors, (2814), 268 states have call predecessors, (2814), 267 states have return successors, (2829), 2738 states have call predecessors, (2829), 2812 states have call successors, (2829) [2022-11-22 02:07:02,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 8473 transitions. [2022-11-22 02:07:02,522 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 8473 transitions. Word has length 114 [2022-11-22 02:07:02,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:02,522 INFO L495 AbstractCegarLoop]: Abstraction has 5434 states and 8473 transitions. [2022-11-22 02:07:02,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 02:07:02,523 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 8473 transitions. [2022-11-22 02:07:02,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-22 02:07:02,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:02,525 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-22 02:07:02,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 02:07:02,526 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:07:02,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:02,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1887767351, now seen corresponding path program 1 times [2022-11-22 02:07:02,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:02,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114567731] [2022-11-22 02:07:02,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:02,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:04,107 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:07:04,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:04,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114567731] [2022-11-22 02:07:04,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114567731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:04,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:04,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:07:04,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949318569] [2022-11-22 02:07:04,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:04,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:07:04,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:04,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:07:04,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:07:04,110 INFO L87 Difference]: Start difference. First operand 5434 states and 8473 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 02:07:07,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:07:10,128 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 02:07:11,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:11,949 INFO L93 Difference]: Finished difference Result 5438 states and 8480 transitions. [2022-11-22 02:07:11,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:07:11,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 119 [2022-11-22 02:07:11,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:11,969 INFO L225 Difference]: With dead ends: 5438 [2022-11-22 02:07:11,969 INFO L226 Difference]: Without dead ends: 5436 [2022-11-22 02:07:11,975 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 02:07:11,975 INFO L413 NwaCegarLoop]: 4610 mSDtfsCounter, 4901 mSDsluCounter, 4650 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4914 SdHoareTripleChecker+Valid, 9260 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:11,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4914 Valid, 9260 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-11-22 02:07:11,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5436 states. [2022-11-22 02:07:12,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5436 to 5432. [2022-11-22 02:07:12,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 2340 states have (on average 1.2085470085470085) internal successors, (2828), 2506 states have internal predecessors, (2828), 2814 states have call successors, (2814), 268 states have call predecessors, (2814), 267 states have return successors, (2829), 2738 states have call predecessors, (2829), 2812 states have call successors, (2829) [2022-11-22 02:07:12,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 8471 transitions. [2022-11-22 02:07:12,981 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 8471 transitions. Word has length 119 [2022-11-22 02:07:12,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:12,982 INFO L495 AbstractCegarLoop]: Abstraction has 5432 states and 8471 transitions. [2022-11-22 02:07:12,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 02:07:12,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 8471 transitions. [2022-11-22 02:07:12,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-22 02:07:12,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:12,984 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:12,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-22 02:07:12,984 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_rtnetlink_past_rtnl_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:07:12,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:12,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1698668799, now seen corresponding path program 1 times [2022-11-22 02:07:12,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:12,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436307070] [2022-11-22 02:07:12,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:12,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:14,101 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-22 02:07:14,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:14,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436307070] [2022-11-22 02:07:14,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436307070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:14,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:14,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:07:14,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051726132] [2022-11-22 02:07:14,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:14,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:07:14,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:14,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:07:14,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:07:14,104 INFO L87 Difference]: Start difference. First operand 5432 states and 8471 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-22 02:07:17,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:07:20,419 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 02:07:23,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:23,313 INFO L93 Difference]: Finished difference Result 5453 states and 8494 transitions. [2022-11-22 02:07:23,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:07:23,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 138 [2022-11-22 02:07:23,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:23,332 INFO L225 Difference]: With dead ends: 5453 [2022-11-22 02:07:23,332 INFO L226 Difference]: Without dead ends: 5451 [2022-11-22 02:07:23,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 02:07:23,336 INFO L413 NwaCegarLoop]: 7899 mSDtfsCounter, 3542 mSDsluCounter, 12452 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3543 SdHoareTripleChecker+Valid, 20351 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:23,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3543 Valid, 20351 Invalid, 1404 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1401 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-11-22 02:07:23,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5451 states. [2022-11-22 02:07:24,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5451 to 5440. [2022-11-22 02:07:24,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 2342 states have (on average 1.2083689154568744) internal successors, (2830), 2507 states have internal predecessors, (2830), 2820 states have call successors, (2820), 269 states have call predecessors, (2820), 267 states have return successors, (2835), 2744 states have call predecessors, (2835), 2818 states have call successors, (2835) [2022-11-22 02:07:24,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 8485 transitions. [2022-11-22 02:07:24,297 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 8485 transitions. Word has length 138 [2022-11-22 02:07:24,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:24,297 INFO L495 AbstractCegarLoop]: Abstraction has 5440 states and 8485 transitions. [2022-11-22 02:07:24,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-22 02:07:24,298 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 8485 transitions. [2022-11-22 02:07:24,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-22 02:07:24,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:24,300 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-22 02:07:24,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-22 02:07:24,301 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:07:24,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:24,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1352344869, now seen corresponding path program 1 times [2022-11-22 02:07:24,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:24,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414437899] [2022-11-22 02:07:24,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:24,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:25,006 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:07:25,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:25,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414437899] [2022-11-22 02:07:25,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414437899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:25,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:25,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:07:25,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141065872] [2022-11-22 02:07:25,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:25,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:07:25,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:25,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:07:25,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:07:25,011 INFO L87 Difference]: Start difference. First operand 5440 states and 8485 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 02:07:28,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:07:30,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:07:33,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:33,115 INFO L93 Difference]: Finished difference Result 5451 states and 8492 transitions. [2022-11-22 02:07:33,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:07:33,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 124 [2022-11-22 02:07:33,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:33,138 INFO L225 Difference]: With dead ends: 5451 [2022-11-22 02:07:33,139 INFO L226 Difference]: Without dead ends: 5449 [2022-11-22 02:07:33,143 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 02:07:33,144 INFO L413 NwaCegarLoop]: 5862 mSDtfsCounter, 4865 mSDsluCounter, 9255 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4873 SdHoareTripleChecker+Valid, 15117 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:33,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4873 Valid, 15117 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 907 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-22 02:07:33,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-11-22 02:07:33,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5438. [2022-11-22 02:07:33,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 2341 states have (on average 1.2080307560871422) internal successors, (2828), 2505 states have internal predecessors, (2828), 2820 states have call successors, (2820), 269 states have call predecessors, (2820), 267 states have return successors, (2835), 2744 states have call predecessors, (2835), 2818 states have call successors, (2835) [2022-11-22 02:07:33,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 8483 transitions. [2022-11-22 02:07:33,970 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 8483 transitions. Word has length 124 [2022-11-22 02:07:33,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:33,971 INFO L495 AbstractCegarLoop]: Abstraction has 5438 states and 8483 transitions. [2022-11-22 02:07:33,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 02:07:33,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 8483 transitions. [2022-11-22 02:07:33,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-22 02:07:33,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:33,973 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:33,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-22 02:07:33,974 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:07:33,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:33,974 INFO L85 PathProgramCache]: Analyzing trace with hash 208582045, now seen corresponding path program 1 times [2022-11-22 02:07:33,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:33,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63061327] [2022-11-22 02:07:33,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:33,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:34,681 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:07:34,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:34,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63061327] [2022-11-22 02:07:34,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63061327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:34,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:34,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:07:34,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622430278] [2022-11-22 02:07:34,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:34,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:07:34,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:34,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:07:34,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:07:34,686 INFO L87 Difference]: Start difference. First operand 5438 states and 8483 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 02:07:37,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:07:40,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:07:42,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:42,571 INFO L93 Difference]: Finished difference Result 5440 states and 8484 transitions. [2022-11-22 02:07:42,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:07:42,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 129 [2022-11-22 02:07:42,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:42,590 INFO L225 Difference]: With dead ends: 5440 [2022-11-22 02:07:42,590 INFO L226 Difference]: Without dead ends: 5438 [2022-11-22 02:07:42,592 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 02:07:42,593 INFO L413 NwaCegarLoop]: 4606 mSDtfsCounter, 4908 mSDsluCounter, 4633 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4916 SdHoareTripleChecker+Valid, 9239 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:42,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4916 Valid, 9239 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-11-22 02:07:42,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5438 states. [2022-11-22 02:07:43,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5438 to 5436. [2022-11-22 02:07:43,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 2340 states have (on average 1.2076923076923076) internal successors, (2826), 2503 states have internal predecessors, (2826), 2820 states have call successors, (2820), 269 states have call predecessors, (2820), 267 states have return successors, (2835), 2744 states have call predecessors, (2835), 2818 states have call successors, (2835) [2022-11-22 02:07:43,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 8481 transitions. [2022-11-22 02:07:43,527 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 8481 transitions. Word has length 129 [2022-11-22 02:07:43,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:43,527 INFO L495 AbstractCegarLoop]: Abstraction has 5436 states and 8481 transitions. [2022-11-22 02:07:43,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 02:07:43,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 8481 transitions. [2022-11-22 02:07:43,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-22 02:07:43,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:43,531 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-22 02:07:43,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-22 02:07:43,532 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:07:43,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:43,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1205762273, now seen corresponding path program 1 times [2022-11-22 02:07:43,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:43,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237109848] [2022-11-22 02:07:43,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:43,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:44,157 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:07:44,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:44,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237109848] [2022-11-22 02:07:44,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237109848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:44,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:44,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:07:44,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470650913] [2022-11-22 02:07:44,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:44,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:07:44,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:44,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:07:44,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:07:44,160 INFO L87 Difference]: Start difference. First operand 5436 states and 8481 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 02:07:47,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:07:49,306 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 02:07:51,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:51,813 INFO L93 Difference]: Finished difference Result 5438 states and 8482 transitions. [2022-11-22 02:07:51,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:07:51,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 134 [2022-11-22 02:07:51,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:51,832 INFO L225 Difference]: With dead ends: 5438 [2022-11-22 02:07:51,833 INFO L226 Difference]: Without dead ends: 5436 [2022-11-22 02:07:51,837 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 02:07:51,838 INFO L413 NwaCegarLoop]: 4604 mSDtfsCounter, 4905 mSDsluCounter, 4631 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4913 SdHoareTripleChecker+Valid, 9235 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:51,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4913 Valid, 9235 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-22 02:07:51,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5436 states. [2022-11-22 02:07:52,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5436 to 5434. [2022-11-22 02:07:52,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 2339 states have (on average 1.2073535699016673) internal successors, (2824), 2501 states have internal predecessors, (2824), 2820 states have call successors, (2820), 269 states have call predecessors, (2820), 267 states have return successors, (2835), 2744 states have call predecessors, (2835), 2818 states have call successors, (2835) [2022-11-22 02:07:52,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 8479 transitions. [2022-11-22 02:07:52,864 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 8479 transitions. Word has length 134 [2022-11-22 02:07:52,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:52,865 INFO L495 AbstractCegarLoop]: Abstraction has 5434 states and 8479 transitions. [2022-11-22 02:07:52,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 02:07:52,865 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 8479 transitions. [2022-11-22 02:07:52,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-22 02:07:52,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:52,869 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:52,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-22 02:07:52,870 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:07:52,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:52,870 INFO L85 PathProgramCache]: Analyzing trace with hash 808473213, now seen corresponding path program 1 times [2022-11-22 02:07:52,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:52,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919505435] [2022-11-22 02:07:52,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:52,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:54,933 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-11-22 02:07:54,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:54,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919505435] [2022-11-22 02:07:54,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919505435] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:07:54,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271205549] [2022-11-22 02:07:54,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:54,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:07:54,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:07:54,939 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:07:54,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:07:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:57,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 5178 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-22 02:07:57,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:07:57,409 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-22 02:07:57,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:07:57,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271205549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:57,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:07:57,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2022-11-22 02:07:57,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335523740] [2022-11-22 02:07:57,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:57,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:07:57,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:57,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:07:57,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-11-22 02:07:57,412 INFO L87 Difference]: Start difference. First operand 5434 states and 8479 transitions. Second operand has 12 states, 9 states have (on average 6.666666666666667) internal successors, (60), 11 states have internal predecessors, (60), 7 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) [2022-11-22 02:08:07,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:08:10,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:08:12,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:08:14,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:08:16,408 WARN L539 Checker$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 02:08:18,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:08:19,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:08:24,127 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 02:08:31,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:08:31,157 INFO L93 Difference]: Finished difference Result 12182 states and 19137 transitions. [2022-11-22 02:08:31,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-22 02:08:31,158 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 6.666666666666667) internal successors, (60), 11 states have internal predecessors, (60), 7 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) Word has length 166 [2022-11-22 02:08:31,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:08:31,199 INFO L225 Difference]: With dead ends: 12182 [2022-11-22 02:08:31,200 INFO L226 Difference]: Without dead ends: 6765 [2022-11-22 02:08:31,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=648, Unknown=0, NotChecked=0, Total=756 [2022-11-22 02:08:31,247 INFO L413 NwaCegarLoop]: 5749 mSDtfsCounter, 1513 mSDsluCounter, 55111 mSDsCounter, 0 mSdLazyCounter, 6059 mSolverCounterSat, 1037 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1797 SdHoareTripleChecker+Valid, 60860 SdHoareTripleChecker+Invalid, 7100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1037 IncrementalHoareTripleChecker+Valid, 6059 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:08:31,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1797 Valid, 60860 Invalid, 7100 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1037 Valid, 6059 Invalid, 4 Unknown, 0 Unchecked, 31.5s Time] [2022-11-22 02:08:31,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6765 states. [2022-11-22 02:08:32,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6765 to 5446. [2022-11-22 02:08:32,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5446 states, 2347 states have (on average 1.2066467831273966) internal successors, (2832), 2509 states have internal predecessors, (2832), 2824 states have call successors, (2824), 269 states have call predecessors, (2824), 267 states have return successors, (2839), 2748 states have call predecessors, (2839), 2822 states have call successors, (2839) [2022-11-22 02:08:32,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5446 states to 5446 states and 8495 transitions. [2022-11-22 02:08:32,678 INFO L78 Accepts]: Start accepts. Automaton has 5446 states and 8495 transitions. Word has length 166 [2022-11-22 02:08:32,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:08:32,678 INFO L495 AbstractCegarLoop]: Abstraction has 5446 states and 8495 transitions. [2022-11-22 02:08:32,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 6.666666666666667) internal successors, (60), 11 states have internal predecessors, (60), 7 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) [2022-11-22 02:08:32,679 INFO L276 IsEmpty]: Start isEmpty. Operand 5446 states and 8495 transitions. [2022-11-22 02:08:32,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-22 02:08:32,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:08:32,682 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:08:32,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:08:32,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-22 02:08:32,901 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:08:32,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:08:32,901 INFO L85 PathProgramCache]: Analyzing trace with hash -2053438705, now seen corresponding path program 1 times [2022-11-22 02:08:32,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:08:32,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370823967] [2022-11-22 02:08:32,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:08:32,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:08:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:08:33,486 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:08:33,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:08:33,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370823967] [2022-11-22 02:08:33,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370823967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:08:33,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:08:33,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:08:33,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081492106] [2022-11-22 02:08:33,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:08:33,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:08:33,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:08:33,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:08:33,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:08:33,489 INFO L87 Difference]: Start difference. First operand 5446 states and 8495 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-22 02:08:36,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:08:38,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:08:40,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:08:40,810 INFO L93 Difference]: Finished difference Result 5448 states and 8496 transitions. [2022-11-22 02:08:40,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:08:40,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 139 [2022-11-22 02:08:40,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:08:40,829 INFO L225 Difference]: With dead ends: 5448 [2022-11-22 02:08:40,829 INFO L226 Difference]: Without dead ends: 5446 [2022-11-22 02:08:40,832 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 02:08:40,833 INFO L413 NwaCegarLoop]: 4602 mSDtfsCounter, 4902 mSDsluCounter, 4629 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4910 SdHoareTripleChecker+Valid, 9231 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:08:40,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4910 Valid, 9231 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-22 02:08:40,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5446 states. [2022-11-22 02:08:42,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5446 to 5444. [2022-11-22 02:08:42,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5444 states, 2346 states have (on average 1.206308610400682) internal successors, (2830), 2507 states have internal predecessors, (2830), 2824 states have call successors, (2824), 269 states have call predecessors, (2824), 267 states have return successors, (2839), 2748 states have call predecessors, (2839), 2822 states have call successors, (2839) [2022-11-22 02:08:42,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 8493 transitions. [2022-11-22 02:08:42,336 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 8493 transitions. Word has length 139 [2022-11-22 02:08:42,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:08:42,337 INFO L495 AbstractCegarLoop]: Abstraction has 5444 states and 8493 transitions. [2022-11-22 02:08:42,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-22 02:08:42,337 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 8493 transitions. [2022-11-22 02:08:42,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-22 02:08:42,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:08:42,339 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:08:42,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-22 02:08:42,340 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:08:42,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:08:42,340 INFO L85 PathProgramCache]: Analyzing trace with hash 198158865, now seen corresponding path program 1 times [2022-11-22 02:08:42,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:08:42,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866153097] [2022-11-22 02:08:42,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:08:42,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:08:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:08:43,011 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:08:43,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:08:43,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866153097] [2022-11-22 02:08:43,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866153097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:08:43,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:08:43,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:08:43,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245151642] [2022-11-22 02:08:43,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:08:43,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:08:43,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:08:43,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:08:43,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:08:43,014 INFO L87 Difference]: Start difference. First operand 5444 states and 8493 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-22 02:08:47,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:08:50,339 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 02:08:52,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:08:52,870 INFO L93 Difference]: Finished difference Result 5446 states and 8494 transitions. [2022-11-22 02:08:52,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:08:52,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 144 [2022-11-22 02:08:52,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:08:52,889 INFO L225 Difference]: With dead ends: 5446 [2022-11-22 02:08:52,890 INFO L226 Difference]: Without dead ends: 5292 [2022-11-22 02:08:52,893 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 02:08:52,893 INFO L413 NwaCegarLoop]: 4601 mSDtfsCounter, 4899 mSDsluCounter, 4628 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4905 SdHoareTripleChecker+Valid, 9229 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:08:52,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4905 Valid, 9229 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2022-11-22 02:08:52,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5292 states. [2022-11-22 02:08:54,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5292 to 5290. [2022-11-22 02:08:54,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5290 states, 2267 states have (on average 1.2112924569916188) internal successors, (2746), 2425 states have internal predecessors, (2746), 2769 states have call successors, (2769), 249 states have call predecessors, (2769), 248 states have return successors, (2786), 2695 states have call predecessors, (2786), 2769 states have call successors, (2786) [2022-11-22 02:08:54,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 8301 transitions. [2022-11-22 02:08:54,527 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 8301 transitions. Word has length 144 [2022-11-22 02:08:54,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:08:54,528 INFO L495 AbstractCegarLoop]: Abstraction has 5290 states and 8301 transitions. [2022-11-22 02:08:54,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-22 02:08:54,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 8301 transitions. [2022-11-22 02:08:54,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-11-22 02:08:54,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:08:54,531 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:54,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-22 02:08:54,532 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:08:54,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:08:54,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1537737469, now seen corresponding path program 1 times [2022-11-22 02:08:54,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:08:54,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102092671] [2022-11-22 02:08:54,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:08:54,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:08:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:08:56,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1599 trivial. 0 not checked. [2022-11-22 02:08:56,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:08:56,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102092671] [2022-11-22 02:08:56,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102092671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:08:56,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:08:56,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:08:56,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324271785] [2022-11-22 02:08:56,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:08:56,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:08:56,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:08:56,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:08:56,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:08:56,762 INFO L87 Difference]: Start difference. First operand 5290 states and 8301 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-22 02:09:03,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:09:08,438 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 02:09:21,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:09:21,246 INFO L93 Difference]: Finished difference Result 5711 states and 8833 transitions. [2022-11-22 02:09:21,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 02:09:21,247 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 289 [2022-11-22 02:09:21,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:09:21,269 INFO L225 Difference]: With dead ends: 5711 [2022-11-22 02:09:21,269 INFO L226 Difference]: Without dead ends: 5709 [2022-11-22 02:09:21,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:09:21,273 INFO L413 NwaCegarLoop]: 4505 mSDtfsCounter, 4388 mSDsluCounter, 12150 mSDsCounter, 0 mSdLazyCounter, 8490 mSolverCounterSat, 142 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4601 SdHoareTripleChecker+Valid, 16655 SdHoareTripleChecker+Invalid, 8634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 8490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:09:21,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4601 Valid, 16655 Invalid, 8634 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [142 Valid, 8490 Invalid, 2 Unknown, 0 Unchecked, 22.2s Time] [2022-11-22 02:09:21,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5709 states. [2022-11-22 02:09:22,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5709 to 5494. [2022-11-22 02:09:22,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5494 states, 2377 states have (on average 1.205721497686159) internal successors, (2866), 2535 states have internal predecessors, (2866), 2807 states have call successors, (2807), 305 states have call predecessors, (2807), 304 states have return successors, (2824), 2733 states have call predecessors, (2824), 2807 states have call successors, (2824) [2022-11-22 02:09:22,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5494 states to 5494 states and 8497 transitions. [2022-11-22 02:09:22,629 INFO L78 Accepts]: Start accepts. Automaton has 5494 states and 8497 transitions. Word has length 289 [2022-11-22 02:09:22,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:09:22,630 INFO L495 AbstractCegarLoop]: Abstraction has 5494 states and 8497 transitions. [2022-11-22 02:09:22,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-22 02:09:22,631 INFO L276 IsEmpty]: Start isEmpty. Operand 5494 states and 8497 transitions. [2022-11-22 02:09:22,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-11-22 02:09:22,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:09:22,635 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:22,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-22 02:09:22,635 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:09:22,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:09:22,636 INFO L85 PathProgramCache]: Analyzing trace with hash -317212259, now seen corresponding path program 1 times [2022-11-22 02:09:22,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:09:22,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580317095] [2022-11-22 02:09:22,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:09:22,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:09:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:09:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1599 trivial. 0 not checked. [2022-11-22 02:09:23,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:09:23,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580317095] [2022-11-22 02:09:23,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580317095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:09:23,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:09:23,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:09:23,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589904672] [2022-11-22 02:09:23,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:09:23,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:09:23,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:09:23,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:09:23,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:09:23,239 INFO L87 Difference]: Start difference. First operand 5494 states and 8497 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-22 02:09:26,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:09:28,672 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 02:09:30,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:09:30,499 INFO L93 Difference]: Finished difference Result 10966 states and 17007 transitions. [2022-11-22 02:09:30,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:09:30,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 292 [2022-11-22 02:09:30,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:09:30,524 INFO L225 Difference]: With dead ends: 10966 [2022-11-22 02:09:30,524 INFO L226 Difference]: Without dead ends: 5488 [2022-11-22 02:09:30,544 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 02:09:30,544 INFO L413 NwaCegarLoop]: 4431 mSDtfsCounter, 4660 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4671 SdHoareTripleChecker+Valid, 4471 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:09:30,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4671 Valid, 4471 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 347 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-11-22 02:09:30,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5488 states. [2022-11-22 02:09:31,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5488 to 5484. [2022-11-22 02:09:31,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 2368 states have (on average 1.203125) internal successors, (2849), 2525 states have internal predecessors, (2849), 2807 states have call successors, (2807), 305 states have call predecessors, (2807), 304 states have return successors, (2824), 2733 states have call predecessors, (2824), 2807 states have call successors, (2824) [2022-11-22 02:09:31,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 8480 transitions. [2022-11-22 02:09:31,619 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 8480 transitions. Word has length 292 [2022-11-22 02:09:31,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:09:31,620 INFO L495 AbstractCegarLoop]: Abstraction has 5484 states and 8480 transitions. [2022-11-22 02:09:31,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-22 02:09:31,620 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 8480 transitions. [2022-11-22 02:09:31,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2022-11-22 02:09:31,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:09:31,637 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:31,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-22 02:09:31,637 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_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:09:31,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:09:31,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1060691250, now seen corresponding path program 1 times [2022-11-22 02:09:31,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:09:31,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694866979] [2022-11-22 02:09:31,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:09:31,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:09:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:09:32,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked. [2022-11-22 02:09:32,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:09:32,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694866979] [2022-11-22 02:09:32,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694866979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:09:32,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:09:32,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:09:32,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111763560] [2022-11-22 02:09:32,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:09:32,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:09:32,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:09:32,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:09:32,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:09:32,397 INFO L87 Difference]: Start difference. First operand 5484 states and 8480 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-22 02:09:35,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:09:37,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:09:39,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:09:42,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:09:42,990 INFO L93 Difference]: Finished difference Result 10960 states and 16967 transitions. [2022-11-22 02:09:42,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:09:42,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 407 [2022-11-22 02:09:42,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:09:43,022 INFO L225 Difference]: With dead ends: 10960 [2022-11-22 02:09:43,022 INFO L226 Difference]: Without dead ends: 5492 [2022-11-22 02:09:43,051 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 02:09:43,052 INFO L413 NwaCegarLoop]: 4418 mSDtfsCounter, 5 mSDsluCounter, 8823 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13241 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:09:43,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13241 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1027 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2022-11-22 02:09:43,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5492 states. [2022-11-22 02:09:44,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5492 to 5490. [2022-11-22 02:09:44,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5490 states, 2373 states have (on average 1.2026970080067425) internal successors, (2854), 2531 states have internal predecessors, (2854), 2807 states have call successors, (2807), 305 states have call predecessors, (2807), 305 states have return successors, (2825), 2733 states have call predecessors, (2825), 2807 states have call successors, (2825) [2022-11-22 02:09:44,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5490 states to 5490 states and 8486 transitions. [2022-11-22 02:09:44,561 INFO L78 Accepts]: Start accepts. Automaton has 5490 states and 8486 transitions. Word has length 407 [2022-11-22 02:09:44,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:09:44,561 INFO L495 AbstractCegarLoop]: Abstraction has 5490 states and 8486 transitions. [2022-11-22 02:09:44,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-22 02:09:44,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5490 states and 8486 transitions. [2022-11-22 02:09:44,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2022-11-22 02:09:44,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:09:44,577 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:44,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-22 02:09:44,577 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:09:44,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:09:44,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1923559255, now seen corresponding path program 1 times [2022-11-22 02:09:44,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:09:44,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861408884] [2022-11-22 02:09:44,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:09:44,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:09:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:09:45,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked. [2022-11-22 02:09:45,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:09:45,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861408884] [2022-11-22 02:09:45,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861408884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:09:45,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:09:45,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:09:45,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151941350] [2022-11-22 02:09:45,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:09:45,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:09:45,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:09:45,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:09:45,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:09:45,236 INFO L87 Difference]: Start difference. First operand 5490 states and 8486 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-22 02:09:48,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:09:51,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:09:52,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:09:54,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:09:54,430 INFO L93 Difference]: Finished difference Result 10998 states and 17019 transitions. [2022-11-22 02:09:54,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:09:54,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 409 [2022-11-22 02:09:54,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:09:54,473 INFO L225 Difference]: With dead ends: 10998 [2022-11-22 02:09:54,473 INFO L226 Difference]: Without dead ends: 5524 [2022-11-22 02:09:54,510 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 02:09:54,511 INFO L413 NwaCegarLoop]: 4430 mSDtfsCounter, 12 mSDsluCounter, 4420 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 8850 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:09:54,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 8850 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 683 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-11-22 02:09:54,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5524 states. [2022-11-22 02:09:55,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5524 to 5492. [2022-11-22 02:09:55,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5492 states, 2375 states have (on average 1.2025263157894737) internal successors, (2856), 2533 states have internal predecessors, (2856), 2807 states have call successors, (2807), 305 states have call predecessors, (2807), 305 states have return successors, (2825), 2733 states have call predecessors, (2825), 2807 states have call successors, (2825) [2022-11-22 02:09:55,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5492 states to 5492 states and 8488 transitions. [2022-11-22 02:09:55,978 INFO L78 Accepts]: Start accepts. Automaton has 5492 states and 8488 transitions. Word has length 409 [2022-11-22 02:09:55,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:09:55,979 INFO L495 AbstractCegarLoop]: Abstraction has 5492 states and 8488 transitions. [2022-11-22 02:09:55,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-22 02:09:55,980 INFO L276 IsEmpty]: Start isEmpty. Operand 5492 states and 8488 transitions. [2022-11-22 02:09:55,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-11-22 02:09:55,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:09:55,993 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:55,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-22 02:09:55,994 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_net_rtnetlink__double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:09:55,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:09:55,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1511339828, now seen corresponding path program 1 times [2022-11-22 02:09:55,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:09:55,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971921214] [2022-11-22 02:09:55,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:09:55,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:09:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:10:02,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1815 backedges. 10 proven. 116 refuted. 0 times theorem prover too weak. 1689 trivial. 0 not checked. [2022-11-22 02:10:02,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:10:02,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971921214] [2022-11-22 02:10:02,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971921214] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:10:02,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465018271] [2022-11-22 02:10:02,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:10:02,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:10:02,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:10:02,635 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:10:02,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:10:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:10:05,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 6342 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-22 02:10:05,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:10:05,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1815 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 1733 trivial. 0 not checked. [2022-11-22 02:10:05,618 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:10:05,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465018271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:10:05,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:10:05,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [9] total 20 [2022-11-22 02:10:05,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904881997] [2022-11-22 02:10:05,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:10:05,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-22 02:10:05,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:10:05,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-22 02:10:05,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:10:05,620 INFO L87 Difference]: Start difference. First operand 5492 states and 8488 transitions. Second operand has 15 states, 11 states have (on average 12.636363636363637) internal successors, (139), 12 states have internal predecessors, (139), 5 states have call successors, (54), 2 states have call predecessors, (54), 6 states have return successors, (50), 7 states have call predecessors, (50), 5 states have call successors, (50) [2022-11-22 02:10:12,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:10:17,812 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 02:10:30,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:10:30,859 INFO L93 Difference]: Finished difference Result 11540 states and 17888 transitions. [2022-11-22 02:10:30,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-22 02:10:30,860 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 12.636363636363637) internal successors, (139), 12 states have internal predecessors, (139), 5 states have call successors, (54), 2 states have call predecessors, (54), 6 states have return successors, (50), 7 states have call predecessors, (50), 5 states have call successors, (50) Word has length 414 [2022-11-22 02:10:30,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:10:30,901 INFO L225 Difference]: With dead ends: 11540 [2022-11-22 02:10:30,902 INFO L226 Difference]: Without dead ends: 6063 [2022-11-22 02:10:30,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2022-11-22 02:10:30,924 INFO L413 NwaCegarLoop]: 5083 mSDtfsCounter, 426 mSDsluCounter, 65369 mSDsCounter, 0 mSdLazyCounter, 7406 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 70452 SdHoareTripleChecker+Invalid, 7411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7406 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:10:30,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 70452 Invalid, 7411 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 7406 Invalid, 2 Unknown, 0 Unchecked, 22.6s Time] [2022-11-22 02:10:30,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6063 states. [2022-11-22 02:10:32,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6063 to 5503. [2022-11-22 02:10:32,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5503 states, 2381 states have (on average 1.2020159596808064) internal successors, (2862), 2539 states have internal predecessors, (2862), 2811 states have call successors, (2811), 305 states have call predecessors, (2811), 306 states have return successors, (2834), 2738 states have call predecessors, (2834), 2811 states have call successors, (2834) [2022-11-22 02:10:32,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5503 states to 5503 states and 8507 transitions. [2022-11-22 02:10:32,246 INFO L78 Accepts]: Start accepts. Automaton has 5503 states and 8507 transitions. Word has length 414 [2022-11-22 02:10:32,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:10:32,247 INFO L495 AbstractCegarLoop]: Abstraction has 5503 states and 8507 transitions. [2022-11-22 02:10:32,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 12.636363636363637) internal successors, (139), 12 states have internal predecessors, (139), 5 states have call successors, (54), 2 states have call predecessors, (54), 6 states have return successors, (50), 7 states have call predecessors, (50), 5 states have call successors, (50) [2022-11-22 02:10:32,247 INFO L276 IsEmpty]: Start isEmpty. Operand 5503 states and 8507 transitions. [2022-11-22 02:10:32,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-11-22 02:10:32,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:10:32,257 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:10:32,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:10:32,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:10:32,463 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:10:32,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:10:32,464 INFO L85 PathProgramCache]: Analyzing trace with hash -649413739, now seen corresponding path program 1 times [2022-11-22 02:10:32,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:10:32,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514443240] [2022-11-22 02:10:32,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:10:32,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:10:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:10:34,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1826 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1826 trivial. 0 not checked. [2022-11-22 02:10:34,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:10:34,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514443240] [2022-11-22 02:10:34,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514443240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:10:34,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:10:34,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:10:34,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821290419] [2022-11-22 02:10:34,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:10:34,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:10:34,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:10:34,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:10:34,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:10:34,692 INFO L87 Difference]: Start difference. First operand 5503 states and 8507 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-22 02:10:42,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:10:47,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:10:55,758 WARN L539 Checker$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 02:11:06,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:11:06,209 INFO L93 Difference]: Finished difference Result 5513 states and 8513 transitions. [2022-11-22 02:11:06,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:11:06,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 418 [2022-11-22 02:11:06,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:11:06,240 INFO L225 Difference]: With dead ends: 5513 [2022-11-22 02:11:06,240 INFO L226 Difference]: Without dead ends: 5511 [2022-11-22 02:11:06,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:11:06,243 INFO L413 NwaCegarLoop]: 1293 mSDtfsCounter, 3008 mSDsluCounter, 2995 mSDsCounter, 0 mSdLazyCounter, 11132 mSolverCounterSat, 5228 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3256 SdHoareTripleChecker+Valid, 4288 SdHoareTripleChecker+Invalid, 16363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5228 IncrementalHoareTripleChecker+Valid, 11132 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:11:06,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3256 Valid, 4288 Invalid, 16363 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5228 Valid, 11132 Invalid, 3 Unknown, 0 Unchecked, 28.8s Time] [2022-11-22 02:11:06,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5511 states. [2022-11-22 02:11:07,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5511 to 5504. [2022-11-22 02:11:07,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5504 states, 2383 states have (on average 1.200167855644146) internal successors, (2860), 2540 states have internal predecessors, (2860), 2809 states have call successors, (2809), 307 states have call predecessors, (2809), 308 states have return successors, (2832), 2736 states have call predecessors, (2832), 2809 states have call successors, (2832) [2022-11-22 02:11:07,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5504 states to 5504 states and 8501 transitions. [2022-11-22 02:11:07,650 INFO L78 Accepts]: Start accepts. Automaton has 5504 states and 8501 transitions. Word has length 418 [2022-11-22 02:11:07,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:11:07,651 INFO L495 AbstractCegarLoop]: Abstraction has 5504 states and 8501 transitions. [2022-11-22 02:11:07,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-22 02:11:07,651 INFO L276 IsEmpty]: Start isEmpty. Operand 5504 states and 8501 transitions. [2022-11-22 02:11:07,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2022-11-22 02:11:07,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:11:07,661 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:07,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-22 02:11:07,661 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_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:11:07,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:11:07,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1303136129, now seen corresponding path program 1 times [2022-11-22 02:11:07,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:11:07,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408049337] [2022-11-22 02:11:07,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:07,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:11:07,920 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:11:07,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [395677953] [2022-11-22 02:11:07,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:07,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:11:07,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:11:07,923 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:11:07,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:11:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:11:10,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 7040 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-22 02:11:10,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:11:10,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1912 trivial. 0 not checked. [2022-11-22 02:11:10,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:11:10,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:11:10,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408049337] [2022-11-22 02:11:10,738 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:11:10,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395677953] [2022-11-22 02:11:10,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395677953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:11:10,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:11:10,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:11:10,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675077220] [2022-11-22 02:11:10,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:11:10,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:11:10,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:11:10,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:11:10,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:11:10,741 INFO L87 Difference]: Start difference. First operand 5504 states and 8501 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (66), 3 states have call predecessors, (66), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-11-22 02:11:15,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 02:11:18,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:11:20,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:11:20,253 INFO L93 Difference]: Finished difference Result 5504 states and 8501 transitions. [2022-11-22 02:11:20,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:11:20,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (66), 3 states have call predecessors, (66), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 443 [2022-11-22 02:11:20,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:11:20,285 INFO L225 Difference]: With dead ends: 5504 [2022-11-22 02:11:20,285 INFO L226 Difference]: Without dead ends: 5502 [2022-11-22 02:11:20,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 439 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 02:11:20,291 INFO L413 NwaCegarLoop]: 4470 mSDtfsCounter, 261 mSDsluCounter, 13190 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 17660 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:11:20,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 17660 Invalid, 1420 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1418 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-11-22 02:11:20,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5502 states. [2022-11-22 02:11:21,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5502 to 5502. [2022-11-22 02:11:21,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5502 states, 2382 states have (on average 1.198992443324937) internal successors, (2856), 2538 states have internal predecessors, (2856), 2809 states have call successors, (2809), 307 states have call predecessors, (2809), 308 states have return successors, (2832), 2736 states have call predecessors, (2832), 2809 states have call successors, (2832) [2022-11-22 02:11:21,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 8497 transitions. [2022-11-22 02:11:21,691 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 8497 transitions. Word has length 443 [2022-11-22 02:11:21,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:11:21,692 INFO L495 AbstractCegarLoop]: Abstraction has 5502 states and 8497 transitions. [2022-11-22 02:11:21,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (66), 3 states have call predecessors, (66), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-11-22 02:11:21,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 8497 transitions. [2022-11-22 02:11:21,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2022-11-22 02:11:21,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:11:21,704 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:21,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:11:21,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-11-22 02:11:21,907 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_net_rtnetlink__double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 02:11:21,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:11:21,907 INFO L85 PathProgramCache]: Analyzing trace with hash 414468439, now seen corresponding path program 1 times [2022-11-22 02:11:21,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:11:21,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543681100] [2022-11-22 02:11:21,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:21,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:11:22,150 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:11:22,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1730255545] [2022-11-22 02:11:22,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:22,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:11:22,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:11:22,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:11:22,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625a8258-f6e6-4033-9a84-b513b7b4626e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 02:11:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:11:24,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 6950 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:11:24,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:11:24,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1862 backedges. 200 proven. 1 refuted. 0 times theorem prover too weak. 1661 trivial. 0 not checked. [2022-11-22 02:11:24,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:11:25,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1862 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2022-11-22 02:11:25,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:11:25,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543681100] [2022-11-22 02:11:25,600 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:11:25,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730255545] [2022-11-22 02:11:25,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730255545] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:11:25,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1609981335] [2022-11-22 02:11:25,642 INFO L159 IcfgInterpreter]: Started Sifa with 251 locations of interest [2022-11-22 02:11:25,643 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:11:25,647 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:11:25,654 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:11:25,654 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:11:43,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 56 [2022-11-22 02:11:46,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 56 [2022-11-22 02:11:46,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 56 [2022-11-22 02:11:47,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 56 [2022-11-22 02:11:50,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 56 [2022-11-22 02:11:51,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 56 [2022-11-22 02:11:52,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 56