./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/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_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9 --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-6b4ec56 [2022-11-20 21:26:20,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:26:20,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:26:20,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:26:20,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:26:20,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:26:20,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:26:20,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:26:20,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:26:20,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:26:20,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:26:20,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:26:20,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:26:20,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:26:20,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:26:20,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:26:20,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:26:20,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:26:20,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:26:20,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:26:21,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:26:21,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:26:21,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:26:21,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:26:21,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:26:21,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:26:21,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:26:21,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:26:21,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:26:21,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:26:21,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:26:21,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:26:21,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:26:21,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:26:21,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:26:21,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:26:21,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:26:21,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:26:21,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:26:21,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:26:21,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:26:21,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 21:26:21,085 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:26:21,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:26:21,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:26:21,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:26:21,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:26:21,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:26:21,088 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:26:21,088 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:26:21,088 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:26:21,089 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:26:21,100 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:26:21,100 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:26:21,100 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:26:21,101 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:26:21,101 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:26:21,101 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:26:21,101 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:26:21,102 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:26:21,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:26:21,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:26:21,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:26:21,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:26:21,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:26:21,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:26:21,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:26:21,104 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:26:21,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:26:21,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:26:21,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:26:21,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:26:21,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:26:21,106 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:26:21,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:26:21,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:26:21,107 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:26:21,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:26:21,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:26:21,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:26:21,108 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_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 215f888dc671693e11ab9e6bd2129df5ac5b9449825c6d5223962a3561afda36 [2022-11-20 21:26:21,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:26:21,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:26:21,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:26:21,416 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:26:21,418 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:26:21,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i [2022-11-20 21:26:24,545 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:26:25,375 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:26:25,376 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i [2022-11-20 21:26:25,447 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/data/92a1dacce/15664f02e2ab4c49b19aa90a655a9c82/FLAG486cab315 [2022-11-20 21:26:25,471 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/data/92a1dacce/15664f02e2ab4c49b19aa90a655a9c82 [2022-11-20 21:26:25,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:26:25,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:26:25,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:26:25,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:26:25,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:26:25,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:26:25" (1/1) ... [2022-11-20 21:26:25,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7663d91c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:25, skipping insertion in model container [2022-11-20 21:26:25,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:26:25" (1/1) ... [2022-11-20 21:26:25,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:26:25,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:26:32,158 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,161 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,162 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,162 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,163 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,163 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,164 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,164 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,164 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,165 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,165 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,166 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,166 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,167 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,167 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,168 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,168 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,169 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,169 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,170 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,170 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,171 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,171 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,171 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,172 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,172 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,173 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,173 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,174 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,174 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,175 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,175 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,176 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,176 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,177 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,177 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,177 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,178 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,178 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,179 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,179 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,180 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,180 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,181 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,181 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,182 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,182 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,182 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,183 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,183 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,184 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,184 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,185 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,185 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,186 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,186 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,187 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,187 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,187 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,188 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,188 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,189 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,189 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,190 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,190 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,191 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,191 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,191 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,192 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,192 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,193 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,193 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,194 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,194 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,195 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,195 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,195 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,196 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,196 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,197 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,197 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,198 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,198 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,198 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,199 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,199 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,200 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,200 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:26:32,296 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:26:32,749 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,750 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,752 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,752 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,753 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,753 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,754 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,754 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,755 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,756 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,756 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,757 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,757 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,757 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,758 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,759 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,759 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,759 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,760 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,760 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,761 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,761 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,762 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,762 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,763 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,764 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,765 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,767 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,768 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,768 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,769 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,769 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,770 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,770 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,771 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,771 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,773 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,774 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,774 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,775 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,776 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,776 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,776 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,777 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,778 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,779 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,779 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,780 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,780 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,781 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,781 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,781 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,782 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,827 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,828 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,828 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,829 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,829 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,829 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,830 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,830 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,831 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,831 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,831 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,832 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,832 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,833 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,833 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,833 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,834 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,834 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,835 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,835 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,835 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,836 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,836 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,837 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,837 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,839 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,839 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,840 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,840 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,841 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,841 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,842 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,842 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,843 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_2a3c74ad-e7c3-4681-b011-92db50807e33/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] [2022-11-20 21:26:32,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:26:33,183 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:26:33,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:33 WrapperNode [2022-11-20 21:26:33,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:26:33,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:26:33,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:26:33,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:26:33,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:33" (1/1) ... [2022-11-20 21:26:33,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:33" (1/1) ... [2022-11-20 21:26:33,680 INFO L138 Inliner]: procedures = 800, calls = 5122, calls flagged for inlining = 403, calls inlined = 325, statements flattened = 9639 [2022-11-20 21:26:33,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:26:33,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:26:33,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:26:33,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:26:33,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:33" (1/1) ... [2022-11-20 21:26:33,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:33" (1/1) ... [2022-11-20 21:26:33,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:33" (1/1) ... [2022-11-20 21:26:33,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:33" (1/1) ... [2022-11-20 21:26:34,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:33" (1/1) ... [2022-11-20 21:26:34,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:33" (1/1) ... [2022-11-20 21:26:34,131 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:33" (1/1) ... [2022-11-20 21:26:34,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:33" (1/1) ... [2022-11-20 21:26:34,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:26:34,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:26:34,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:26:34,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:26:34,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:33" (1/1) ... [2022-11-20 21:26:34,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:26:34,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:26:34,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:26:34,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:26:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_125 [2022-11-20 21:26:34,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_125 [2022-11-20 21:26:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-20 21:26:34,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-20 21:26:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 21:26:34,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 21:26:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 21:26:34,361 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 21:26:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 21:26:34,361 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 21:26:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_rtnetlink__double_lock [2022-11-20 21:26:34,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_rtnetlink__double_lock [2022-11-20 21:26:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2022-11-20 21:26:34,363 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2022-11-20 21:26:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2022-11-20 21:26:34,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2022-11-20 21:26:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2022-11-20 21:26:34,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2022-11-20 21:26:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 21:26:34,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 21:26:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-11-20 21:26:34,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-11-20 21:26:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-20 21:26:34,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-20 21:26:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 21:26:34,365 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 21:26:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2022-11-20 21:26:34,365 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2022-11-20 21:26:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 21:26:34,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 21:26:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-11-20 21:26:34,366 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-11-20 21:26:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2022-11-20 21:26:34,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2022-11-20 21:26:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-20 21:26:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-20 21:26:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 21:26:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-20 21:26:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-20 21:26:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 21:26:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 21:26:34,368 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2022-11-20 21:26:34,368 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2022-11-20 21:26:34,368 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 21:26:34,368 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 21:26:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 21:26:34,369 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 21:26:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-11-20 21:26:34,369 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-11-20 21:26:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2022-11-20 21:26:34,369 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2022-11-20 21:26:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-20 21:26:34,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-20 21:26:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-20 21:26:34,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-20 21:26:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 21:26:34,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:26:34,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 21:26:34,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 21:26:34,371 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 21:26:34,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 21:26:34,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 21:26:34,372 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-11-20 21:26:34,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-11-20 21:26:34,373 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_start [2022-11-20 21:26:34,375 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_start [2022-11-20 21:26:34,375 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2022-11-20 21:26:34,376 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2022-11-20 21:26:34,376 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 21:26:34,376 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 21:26:34,376 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2022-11-20 21:26:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2022-11-20 21:26:34,378 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2022-11-20 21:26:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2022-11-20 21:26:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-20 21:26:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-20 21:26:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:26:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:26:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 21:26:34,384 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 21:26:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 21:26:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_tx [2022-11-20 21:26:34,384 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_tx [2022-11-20 21:26:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2022-11-20 21:26:34,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2022-11-20 21:26:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-11-20 21:26:34,386 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-11-20 21:26:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 21:26:34,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 21:26:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 21:26:34,386 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 21:26:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2022-11-20 21:26:34,387 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2022-11-20 21:26:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_122 [2022-11-20 21:26:34,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_122 [2022-11-20 21:26:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-20 21:26:34,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-20 21:26:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-11-20 21:26:34,387 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-11-20 21:26:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-20 21:26:34,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-20 21:26:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 21:26:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-20 21:26:34,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-20 21:26:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 21:26:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_stop [2022-11-20 21:26:34,388 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_stop [2022-11-20 21:26:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2022-11-20 21:26:34,389 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2022-11-20 21:26:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 21:26:34,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 21:26:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2022-11-20 21:26:34,389 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2022-11-20 21:26:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_readreg [2022-11-20 21:26:34,390 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_readreg [2022-11-20 21:26:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-20 21:26:34,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-20 21:26:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-20 21:26:34,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-20 21:26:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2022-11-20 21:26:34,391 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2022-11-20 21:26:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 21:26:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 21:26:34,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 21:26:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2022-11-20 21:26:34,392 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2022-11-20 21:26:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_conf_ac_parm [2022-11-20 21:26:34,392 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_conf_ac_parm [2022-11-20 21:26:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-20 21:26:34,393 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-20 21:26:34,393 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2022-11-20 21:26:34,393 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2022-11-20 21:26:34,393 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-20 21:26:34,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-20 21:26:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2022-11-20 21:26:34,394 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2022-11-20 21:26:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2022-11-20 21:26:34,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2022-11-20 21:26:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-20 21:26:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2022-11-20 21:26:34,395 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2022-11-20 21:26:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-11-20 21:26:34,395 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-11-20 21:26:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-11-20 21:26:34,395 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-11-20 21:26:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-20 21:26:34,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-20 21:26:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-20 21:26:34,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-20 21:26:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2022-11-20 21:26:34,396 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2022-11-20 21:26:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-11-20 21:26:34,396 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-11-20 21:26:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 21:26:34,397 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 21:26:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 21:26:34,397 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 21:26:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 21:26:34,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 21:26:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2022-11-20 21:26:34,397 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2022-11-20 21:26:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2022-11-20 21:26:34,398 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2022-11-20 21:26:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_writereg [2022-11-20 21:26:34,398 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_writereg [2022-11-20 21:26:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-20 21:26:34,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-20 21:26:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_generic_frame_duration [2022-11-20 21:26:34,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_generic_frame_duration [2022-11-20 21:26:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-20 21:26:34,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-20 21:26:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-11-20 21:26:34,399 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-11-20 21:26:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-20 21:26:34,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-20 21:26:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 21:26:34,400 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 21:26:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2022-11-20 21:26:34,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2022-11-20 21:26:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2022-11-20 21:26:34,400 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2022-11-20 21:26:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-11-20 21:26:34,400 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-11-20 21:26:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 21:26:34,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 21:26:34,401 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2022-11-20 21:26:34,401 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2022-11-20 21:26:34,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 21:26:34,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 21:26:34,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-20 21:26:34,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-20 21:26:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 21:26:34,406 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-11-20 21:26:34,406 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-11-20 21:26:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2022-11-20 21:26:34,407 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2022-11-20 21:26:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-20 21:26:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-11-20 21:26:34,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-11-20 21:26:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 21:26:34,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 21:26:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 21:26:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-20 21:26:34,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-20 21:26:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 21:26:34,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 21:26:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2022-11-20 21:26:34,410 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2022-11-20 21:26:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 21:26:34,410 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 21:26:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-20 21:26:34,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-20 21:26:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 21:26:34,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 21:26:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 21:26:34,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 21:26:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_5 [2022-11-20 21:26:34,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_5 [2022-11-20 21:26:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_6 [2022-11-20 21:26:34,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_6 [2022-11-20 21:26:34,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-20 21:26:34,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-20 21:26:34,412 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2022-11-20 21:26:34,412 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2022-11-20 21:26:34,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-20 21:26:34,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-20 21:26:34,412 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-11-20 21:26:34,412 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-11-20 21:26:34,413 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-20 21:26:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-20 21:26:34,413 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-11-20 21:26:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-11-20 21:26:34,413 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-11-20 21:26:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-11-20 21:26:34,413 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 21:26:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 21:26:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-20 21:26:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-20 21:26:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_init [2022-11-20 21:26:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_init [2022-11-20 21:26:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-20 21:26:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-20 21:26:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam2 [2022-11-20 21:26:34,415 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam2 [2022-11-20 21:26:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-11-20 21:26:34,415 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-11-20 21:26:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2022-11-20 21:26:34,415 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2022-11-20 21:26:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_basic_rates [2022-11-20 21:26:34,415 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_basic_rates [2022-11-20 21:26:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2022-11-20 21:26:34,416 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2022-11-20 21:26:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 21:26:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 21:26:34,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 21:26:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2022-11-20 21:26:34,416 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2022-11-20 21:26:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 21:26:34,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 21:26:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-20 21:26:34,417 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-20 21:26:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-11-20 21:26:34,417 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-11-20 21:26:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2022-11-20 21:26:34,417 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2022-11-20 21:26:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-20 21:26:34,417 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-20 21:26:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_set_channel [2022-11-20 21:26:34,418 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_set_channel [2022-11-20 21:26:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_rtl8180_priv [2022-11-20 21:26:34,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_rtl8180_priv [2022-11-20 21:26:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_int_disable [2022-11-20 21:26:34,418 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_int_disable [2022-11-20 21:26:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_rtl8180_priv [2022-11-20 21:26:34,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_rtl8180_priv [2022-11-20 21:26:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2022-11-20 21:26:34,419 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2022-11-20 21:26:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 21:26:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-20 21:26:34,419 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-20 21:26:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-20 21:26:34,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-20 21:26:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-20 21:26:34,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-20 21:26:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 21:26:34,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 21:26:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2022-11-20 21:26:34,420 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2022-11-20 21:26:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-20 21:26:34,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-20 21:26:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-20 21:26:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-20 21:26:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-11-20 21:26:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-11-20 21:26:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_rx [2022-11-20 21:26:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_rx [2022-11-20 21:26:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-20 21:26:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-20 21:26:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-20 21:26:34,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-20 21:26:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-11-20 21:26:34,422 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-11-20 21:26:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-20 21:26:34,422 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-20 21:26:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2022-11-20 21:26:34,422 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2022-11-20 21:26:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-20 21:26:34,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-20 21:26:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-20 21:26:34,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-20 21:26:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-20 21:26:34,423 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-20 21:26:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 21:26:34,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 21:26:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-20 21:26:34,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-20 21:26:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 21:26:34,424 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 21:26:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-11-20 21:26:34,424 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-11-20 21:26:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 21:26:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2022-11-20 21:26:34,425 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2022-11-20 21:26:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_three_wire_io [2022-11-20 21:26:34,425 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_three_wire_io [2022-11-20 21:26:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-11-20 21:26:34,425 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-11-20 21:26:35,776 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:26:35,781 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:26:36,414 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 21:26:48,081 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:26:50,452 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:26:50,453 INFO L300 CfgBuilder]: Removed 78 assume(true) statements. [2022-11-20 21:26:50,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:26:50 BoogieIcfgContainer [2022-11-20 21:26:50,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:26:50,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:26:50,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:26:50,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:26:50,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:26:25" (1/3) ... [2022-11-20 21:26:50,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71bb89e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:26:50, skipping insertion in model container [2022-11-20 21:26:50,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:33" (2/3) ... [2022-11-20 21:26:50,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71bb89e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:26:50, skipping insertion in model container [2022-11-20 21:26:50,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:26:50" (3/3) ... [2022-11-20 21:26:50,472 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i [2022-11-20 21:26:50,493 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:26:50,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2022-11-20 21:26:50,641 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:26:50,653 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;@572508fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:26:50,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-20 21:26:50,673 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) [2022-11-20 21:26:50,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-20 21:26:50,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:26:50,686 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] [2022-11-20 21:26:50,687 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)] === [2022-11-20 21:26:50,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:26:50,695 INFO L85 PathProgramCache]: Analyzing trace with hash -469019139, now seen corresponding path program 1 times [2022-11-20 21:26:50,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:26:50,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139655598] [2022-11-20 21:26:50,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:26:50,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:26:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:26:52,330 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:26:52,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:26:52,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139655598] [2022-11-20 21:26:52,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139655598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:26:52,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:26:52,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:26:52,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954048957] [2022-11-20 21:26:52,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:26:52,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:26:52,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:26:52,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:26:52,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:26:52,390 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) [2022-11-20 21:26:55,759 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 [] [2022-11-20 21:26:58,191 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 [] [2022-11-20 21:27:00,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:27:00,204 INFO L93 Difference]: Finished difference Result 6762 states and 10782 transitions. [2022-11-20 21:27:00,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:27:00,207 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 [2022-11-20 21:27:00,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:27:00,252 INFO L225 Difference]: With dead ends: 6762 [2022-11-20 21:27:00,252 INFO L226 Difference]: Without dead ends: 3267 [2022-11-20 21:27:00,286 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 [2022-11-20 21:27:00,289 INFO L413 NwaCegarLoop]: 4676 mSDtfsCounter, 4995 mSDsluCounter, 4705 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5003 SdHoareTripleChecker+Valid, 9381 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-20 21:27:00,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5003 Valid, 9381 Invalid, 738 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 737 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-11-20 21:27:00,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2022-11-20 21:27:00,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 3263. [2022-11-20 21:27:00,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3263 states, 1478 states have (on average 1.2354533152909337) internal successors, (1826), 1599 states have internal predecessors, (1826), 1598 states have call successors, (1598), 160 states have call predecessors, (1598), 159 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-20 21:27:00,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 5020 transitions. [2022-11-20 21:27:00,880 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 5020 transitions. Word has length 47 [2022-11-20 21:27:00,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:27:00,881 INFO L495 AbstractCegarLoop]: Abstraction has 3263 states and 5020 transitions. [2022-11-20 21:27:00,881 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) [2022-11-20 21:27:00,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 5020 transitions. [2022-11-20 21:27:00,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 21:27:00,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:27:00,885 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] [2022-11-20 21:27:00,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 21:27:00,887 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)] === [2022-11-20 21:27:00,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:27:00,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2088706690, now seen corresponding path program 1 times [2022-11-20 21:27:00,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:27:00,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283419454] [2022-11-20 21:27:00,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:27:00,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:27:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:27:02,089 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:27:02,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:27:02,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283419454] [2022-11-20 21:27:02,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283419454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:27:02,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:27:02,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:27:02,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900850685] [2022-11-20 21:27:02,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:27:02,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:27:02,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:27:02,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:27:02,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:27:02,099 INFO L87 Difference]: Start difference. First operand 3263 states and 5020 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) [2022-11-20 21:27:05,270 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 [] [2022-11-20 21:27:08,214 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 [] [2022-11-20 21:27:10,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:27:10,301 INFO L93 Difference]: Finished difference Result 3267 states and 5028 transitions. [2022-11-20 21:27:10,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:27:10,302 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 [2022-11-20 21:27:10,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:27:10,328 INFO L225 Difference]: With dead ends: 3267 [2022-11-20 21:27:10,328 INFO L226 Difference]: Without dead ends: 3265 [2022-11-20 21:27:10,332 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 [2022-11-20 21:27:10,333 INFO L413 NwaCegarLoop]: 4648 mSDtfsCounter, 4965 mSDsluCounter, 4675 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4973 SdHoareTripleChecker+Valid, 9323 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-20 21:27:10,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4973 Valid, 9323 Invalid, 736 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-11-20 21:27:10,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2022-11-20 21:27:10,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 3261. [2022-11-20 21:27:10,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3261 states, 1477 states have (on average 1.2349356804333107) internal successors, (1824), 1597 states have internal predecessors, (1824), 1598 states have call successors, (1598), 160 states have call predecessors, (1598), 159 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-20 21:27:10,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 5018 transitions. [2022-11-20 21:27:10,682 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 5018 transitions. Word has length 52 [2022-11-20 21:27:10,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:27:10,683 INFO L495 AbstractCegarLoop]: Abstraction has 3261 states and 5018 transitions. [2022-11-20 21:27:10,684 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) [2022-11-20 21:27:10,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 5018 transitions. [2022-11-20 21:27:10,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-20 21:27:10,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:27:10,695 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] [2022-11-20 21:27:10,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 21:27:10,696 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)] === [2022-11-20 21:27:10,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:27:10,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1119624584, now seen corresponding path program 1 times [2022-11-20 21:27:10,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:27:10,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915440354] [2022-11-20 21:27:10,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:27:10,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:27:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:27:11,550 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:27:11,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:27:11,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915440354] [2022-11-20 21:27:11,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915440354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:27:11,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:27:11,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:27:11,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136519792] [2022-11-20 21:27:11,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:27:11,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:27:11,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:27:11,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:27:11,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:27:11,554 INFO L87 Difference]: Start difference. First operand 3261 states and 5018 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) [2022-11-20 21:27:14,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-20 21:27:16,785 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 [] [2022-11-20 21:27:18,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:27:18,749 INFO L93 Difference]: Finished difference Result 3265 states and 5026 transitions. [2022-11-20 21:27:18,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:27:18,753 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 [2022-11-20 21:27:18,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:27:18,783 INFO L225 Difference]: With dead ends: 3265 [2022-11-20 21:27:18,783 INFO L226 Difference]: Without dead ends: 3263 [2022-11-20 21:27:18,786 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 [2022-11-20 21:27:18,789 INFO L413 NwaCegarLoop]: 4646 mSDtfsCounter, 4962 mSDsluCounter, 4673 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4970 SdHoareTripleChecker+Valid, 9319 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-20 21:27:18,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4970 Valid, 9319 Invalid, 736 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-11-20 21:27:18,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3263 states. [2022-11-20 21:27:19,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3263 to 3259. [2022-11-20 21:27:19,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3259 states, 1476 states have (on average 1.2344173441734418) internal successors, (1822), 1595 states have internal predecessors, (1822), 1598 states have call successors, (1598), 160 states have call predecessors, (1598), 159 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-20 21:27:19,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3259 states to 3259 states and 5016 transitions. [2022-11-20 21:27:19,132 INFO L78 Accepts]: Start accepts. Automaton has 3259 states and 5016 transitions. Word has length 57 [2022-11-20 21:27:19,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:27:19,132 INFO L495 AbstractCegarLoop]: Abstraction has 3259 states and 5016 transitions. [2022-11-20 21:27:19,132 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) [2022-11-20 21:27:19,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3259 states and 5016 transitions. [2022-11-20 21:27:19,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-20 21:27:19,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:27:19,134 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] [2022-11-20 21:27:19,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 21:27:19,135 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)] === [2022-11-20 21:27:19,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:27:19,135 INFO L85 PathProgramCache]: Analyzing trace with hash -978489621, now seen corresponding path program 1 times [2022-11-20 21:27:19,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:27:19,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763765515] [2022-11-20 21:27:19,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:27:19,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:27:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:27:20,000 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:27:20,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:27:20,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763765515] [2022-11-20 21:27:20,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763765515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:27:20,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:27:20,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:27:20,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540652923] [2022-11-20 21:27:20,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:27:20,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:27:20,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:27:20,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:27:20,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:27:20,004 INFO L87 Difference]: Start difference. First operand 3259 states and 5016 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) [2022-11-20 21:27:23,688 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 [] [2022-11-20 21:27:26,919 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 [] [2022-11-20 21:27:27,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:27:27,956 INFO L93 Difference]: Finished difference Result 3263 states and 5024 transitions. [2022-11-20 21:27:27,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:27:27,956 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 [2022-11-20 21:27:27,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:27:27,980 INFO L225 Difference]: With dead ends: 3263 [2022-11-20 21:27:27,981 INFO L226 Difference]: Without dead ends: 3261 [2022-11-20 21:27:27,983 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 [2022-11-20 21:27:27,986 INFO L413 NwaCegarLoop]: 4644 mSDtfsCounter, 4959 mSDsluCounter, 4671 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4967 SdHoareTripleChecker+Valid, 9315 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-20 21:27:27,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4967 Valid, 9315 Invalid, 736 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-11-20 21:27:27,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3261 states. [2022-11-20 21:27:28,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3261 to 3257. [2022-11-20 21:27:28,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3257 states, 1475 states have (on average 1.2338983050847459) internal successors, (1820), 1593 states have internal predecessors, (1820), 1598 states have call successors, (1598), 160 states have call predecessors, (1598), 159 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-20 21:27:28,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3257 states to 3257 states and 5014 transitions. [2022-11-20 21:27:28,314 INFO L78 Accepts]: Start accepts. Automaton has 3257 states and 5014 transitions. Word has length 62 [2022-11-20 21:27:28,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:27:28,315 INFO L495 AbstractCegarLoop]: Abstraction has 3257 states and 5014 transitions. [2022-11-20 21:27:28,315 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) [2022-11-20 21:27:28,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3257 states and 5014 transitions. [2022-11-20 21:27:28,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-20 21:27:28,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:27:28,319 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] [2022-11-20 21:27:28,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 21:27:28,320 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)] === [2022-11-20 21:27:28,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:27:28,320 INFO L85 PathProgramCache]: Analyzing trace with hash 851357546, now seen corresponding path program 1 times [2022-11-20 21:27:28,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:27:28,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44939798] [2022-11-20 21:27:28,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:27:28,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:27:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:27:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:27:29,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:27:29,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44939798] [2022-11-20 21:27:29,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44939798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:27:29,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:27:29,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:27:29,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490532729] [2022-11-20 21:27:29,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:27:29,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:27:29,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:27:29,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:27:29,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:27:29,102 INFO L87 Difference]: Start difference. First operand 3257 states and 5014 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) [2022-11-20 21:27:32,640 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 [] [2022-11-20 21:27:34,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:27:36,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:27:37,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:27:37,931 INFO L93 Difference]: Finished difference Result 3261 states and 5022 transitions. [2022-11-20 21:27:37,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:27:37,932 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 [2022-11-20 21:27:37,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:27:37,965 INFO L225 Difference]: With dead ends: 3261 [2022-11-20 21:27:37,965 INFO L226 Difference]: Without dead ends: 3259 [2022-11-20 21:27:37,969 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 [2022-11-20 21:27:37,970 INFO L413 NwaCegarLoop]: 4642 mSDtfsCounter, 4956 mSDsluCounter, 4669 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s 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, 8.4s IncrementalHoareTripleChecker+Time [2022-11-20 21:27:37,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4964 Valid, 9311 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-11-20 21:27:37,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3259 states. [2022-11-20 21:27:38,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3259 to 3255. [2022-11-20 21:27:38,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3255 states, 1474 states have (on average 1.2333785617367707) internal successors, (1818), 1591 states have internal predecessors, (1818), 1598 states have call successors, (1598), 160 states have call predecessors, (1598), 159 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-20 21:27:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 5012 transitions. [2022-11-20 21:27:38,451 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 5012 transitions. Word has length 67 [2022-11-20 21:27:38,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:27:38,454 INFO L495 AbstractCegarLoop]: Abstraction has 3255 states and 5012 transitions. [2022-11-20 21:27:38,454 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) [2022-11-20 21:27:38,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 5012 transitions. [2022-11-20 21:27:38,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-20 21:27:38,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:27:38,456 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] [2022-11-20 21:27:38,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 21:27:38,456 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)] === [2022-11-20 21:27:38,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:27:38,457 INFO L85 PathProgramCache]: Analyzing trace with hash -151065551, now seen corresponding path program 1 times [2022-11-20 21:27:38,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:27:38,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111897126] [2022-11-20 21:27:38,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:27:38,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:27:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:27:39,219 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:27:39,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:27:39,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111897126] [2022-11-20 21:27:39,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111897126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:27:39,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:27:39,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:27:39,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747740826] [2022-11-20 21:27:39,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:27:39,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:27:39,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:27:39,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:27:39,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:27:39,222 INFO L87 Difference]: Start difference. First operand 3255 states and 5012 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) [2022-11-20 21:27:42,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-20 21:27:45,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:27:46,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:27:46,567 INFO L93 Difference]: Finished difference Result 3259 states and 5020 transitions. [2022-11-20 21:27:46,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:27:46,568 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 [2022-11-20 21:27:46,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:27:46,590 INFO L225 Difference]: With dead ends: 3259 [2022-11-20 21:27:46,591 INFO L226 Difference]: Without dead ends: 3257 [2022-11-20 21:27:46,593 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 [2022-11-20 21:27:46,594 INFO L413 NwaCegarLoop]: 4640 mSDtfsCounter, 4953 mSDsluCounter, 4667 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4961 SdHoareTripleChecker+Valid, 9307 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-20 21:27:46,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4961 Valid, 9307 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-11-20 21:27:46,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2022-11-20 21:27:46,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 3253. [2022-11-20 21:27:46,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 1473 states have (on average 1.2328581126951799) internal successors, (1816), 1589 states have internal predecessors, (1816), 1598 states have call successors, (1598), 160 states have call predecessors, (1598), 159 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-20 21:27:46,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 5010 transitions. [2022-11-20 21:27:46,973 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 5010 transitions. Word has length 72 [2022-11-20 21:27:46,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:27:46,973 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 5010 transitions. [2022-11-20 21:27:46,974 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) [2022-11-20 21:27:46,974 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 5010 transitions. [2022-11-20 21:27:46,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-20 21:27:46,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:27:46,975 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] [2022-11-20 21:27:46,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 21:27:46,976 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)] === [2022-11-20 21:27:46,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:27:46,977 INFO L85 PathProgramCache]: Analyzing trace with hash -2118301298, now seen corresponding path program 1 times [2022-11-20 21:27:46,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:27:46,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088110053] [2022-11-20 21:27:46,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:27:46,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:27:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:27:47,555 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-20 21:27:47,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:27:47,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088110053] [2022-11-20 21:27:47,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088110053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:27:47,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:27:47,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:27:47,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090429094] [2022-11-20 21:27:47,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:27:47,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:27:47,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:27:47,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:27:47,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:27:47,558 INFO L87 Difference]: Start difference. First operand 3253 states and 5010 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) [2022-11-20 21:27:50,442 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 [] [2022-11-20 21:27:51,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:27:51,718 INFO L93 Difference]: Finished difference Result 6488 states and 9996 transitions. [2022-11-20 21:27:51,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:27:51,719 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 [2022-11-20 21:27:51,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:27:51,803 INFO L225 Difference]: With dead ends: 6488 [2022-11-20 21:27:51,803 INFO L226 Difference]: Without dead ends: 3253 [2022-11-20 21:27:51,827 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 [2022-11-20 21:27:51,828 INFO L413 NwaCegarLoop]: 4636 mSDtfsCounter, 4964 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4970 SdHoareTripleChecker+Valid, 4663 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-20 21:27:51,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4970 Valid, 4663 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 371 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-20 21:27:51,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3253 states. [2022-11-20 21:27:52,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3253 to 3249. [2022-11-20 21:27:52,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3249 states, 1470 states have (on average 1.2319727891156462) internal successors, (1811), 1585 states have internal predecessors, (1811), 1598 states have call successors, (1598), 160 states have call predecessors, (1598), 159 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-20 21:27:52,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 5005 transitions. [2022-11-20 21:27:52,215 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 5005 transitions. Word has length 89 [2022-11-20 21:27:52,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:27:52,217 INFO L495 AbstractCegarLoop]: Abstraction has 3249 states and 5005 transitions. [2022-11-20 21:27:52,217 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) [2022-11-20 21:27:52,217 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 5005 transitions. [2022-11-20 21:27:52,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 21:27:52,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:27:52,227 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] [2022-11-20 21:27:52,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 21:27:52,228 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)] === [2022-11-20 21:27:52,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:27:52,228 INFO L85 PathProgramCache]: Analyzing trace with hash 87427178, now seen corresponding path program 1 times [2022-11-20 21:27:52,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:27:52,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724933964] [2022-11-20 21:27:52,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:27:52,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:27:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:27:53,040 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:27:53,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:27:53,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724933964] [2022-11-20 21:27:53,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724933964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:27:53,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:27:53,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:27:53,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287475422] [2022-11-20 21:27:53,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:27:53,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:27:53,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:27:53,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:27:53,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:27:53,044 INFO L87 Difference]: Start difference. First operand 3249 states and 5005 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) [2022-11-20 21:27:56,540 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 [] [2022-11-20 21:27:58,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:27:58,663 INFO L93 Difference]: Finished difference Result 3253 states and 5013 transitions. [2022-11-20 21:27:58,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:27:58,664 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 [2022-11-20 21:27:58,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:27:58,684 INFO L225 Difference]: With dead ends: 3253 [2022-11-20 21:27:58,684 INFO L226 Difference]: Without dead ends: 3251 [2022-11-20 21:27:58,687 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 [2022-11-20 21:27:58,688 INFO L413 NwaCegarLoop]: 4633 mSDtfsCounter, 4945 mSDsluCounter, 4660 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 9293 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:27:58,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 9293 Invalid, 736 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-20 21:27:58,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3251 states. [2022-11-20 21:27:59,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3251 to 3247. [2022-11-20 21:27:59,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3247 states, 1469 states have (on average 1.2314499659632403) internal successors, (1809), 1583 states have internal predecessors, (1809), 1598 states have call successors, (1598), 160 states have call predecessors, (1598), 159 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-20 21:27:59,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 5003 transitions. [2022-11-20 21:27:59,100 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 5003 transitions. Word has length 77 [2022-11-20 21:27:59,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:27:59,101 INFO L495 AbstractCegarLoop]: Abstraction has 3247 states and 5003 transitions. [2022-11-20 21:27:59,101 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) [2022-11-20 21:27:59,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 5003 transitions. [2022-11-20 21:27:59,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-20 21:27:59,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:27:59,103 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] [2022-11-20 21:27:59,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 21:27:59,103 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)] === [2022-11-20 21:27:59,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:27:59,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1052167359, now seen corresponding path program 1 times [2022-11-20 21:27:59,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:27:59,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549182385] [2022-11-20 21:27:59,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:27:59,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:27:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:27:59,759 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-20 21:27:59,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:27:59,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549182385] [2022-11-20 21:27:59,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549182385] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:27:59,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751142663] [2022-11-20 21:27:59,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:27:59,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:27:59,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:27:59,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:27:59,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 21:28:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:28:01,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 4661 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 21:28:01,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:28:01,806 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-20 21:28:01,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:28:01,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751142663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:28:01,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 21:28:01,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-20 21:28:01,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928821899] [2022-11-20 21:28:01,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:28:01,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:28:01,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:28:01,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:28:01,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-20 21:28:01,810 INFO L87 Difference]: Start difference. First operand 3247 states and 5003 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) [2022-11-20 21:28:04,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-20 21:28:06,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:28:07,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:28:07,700 INFO L93 Difference]: Finished difference Result 6476 states and 9982 transitions. [2022-11-20 21:28:07,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:28:07,700 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 [2022-11-20 21:28:07,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:28:07,726 INFO L225 Difference]: With dead ends: 6476 [2022-11-20 21:28:07,726 INFO L226 Difference]: Without dead ends: 3247 [2022-11-20 21:28:07,751 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 [2022-11-20 21:28:07,751 INFO L413 NwaCegarLoop]: 4629 mSDtfsCounter, 4951 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s 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, 5.5s IncrementalHoareTripleChecker+Time [2022-11-20 21:28:07,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4957 Valid, 4656 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 371 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-20 21:28:07,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2022-11-20 21:28:08,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 3243. [2022-11-20 21:28:08,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3243 states, 1466 states have (on average 1.2305593451568895) internal successors, (1804), 1579 states have internal predecessors, (1804), 1598 states have call successors, (1598), 160 states have call predecessors, (1598), 159 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-20 21:28:08,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4998 transitions. [2022-11-20 21:28:08,209 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4998 transitions. Word has length 94 [2022-11-20 21:28:08,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:28:08,210 INFO L495 AbstractCegarLoop]: Abstraction has 3243 states and 4998 transitions. [2022-11-20 21:28:08,211 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) [2022-11-20 21:28:08,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4998 transitions. [2022-11-20 21:28:08,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-20 21:28:08,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:28:08,214 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] [2022-11-20 21:28:08,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 21:28:08,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-20 21:28:08,430 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)] === [2022-11-20 21:28:08,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:28:08,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1133578707, now seen corresponding path program 1 times [2022-11-20 21:28:08,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:28:08,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371967723] [2022-11-20 21:28:08,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:28:08,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:28:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:28:09,348 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:28:09,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:28:09,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371967723] [2022-11-20 21:28:09,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371967723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:28:09,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:28:09,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:28:09,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315632039] [2022-11-20 21:28:09,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:28:09,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:28:09,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:28:09,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:28:09,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:28:09,351 INFO L87 Difference]: Start difference. First operand 3243 states and 4998 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) [2022-11-20 21:28:12,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-20 21:28:15,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:28:16,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:28:16,597 INFO L93 Difference]: Finished difference Result 3247 states and 5006 transitions. [2022-11-20 21:28:16,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:28:16,597 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 [2022-11-20 21:28:16,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:28:16,619 INFO L225 Difference]: With dead ends: 3247 [2022-11-20 21:28:16,619 INFO L226 Difference]: Without dead ends: 3245 [2022-11-20 21:28:16,623 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 [2022-11-20 21:28:16,623 INFO L413 NwaCegarLoop]: 4626 mSDtfsCounter, 4941 mSDsluCounter, 4649 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 9275 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-20 21:28:16,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4949 Valid, 9275 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-11-20 21:28:16,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2022-11-20 21:28:17,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3241. [2022-11-20 21:28:17,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3241 states, 1465 states have (on average 1.2300341296928328) internal successors, (1802), 1577 states have internal predecessors, (1802), 1598 states have call successors, (1598), 160 states have call predecessors, (1598), 159 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-20 21:28:17,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 4996 transitions. [2022-11-20 21:28:17,038 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 4996 transitions. Word has length 82 [2022-11-20 21:28:17,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:28:17,039 INFO L495 AbstractCegarLoop]: Abstraction has 3241 states and 4996 transitions. [2022-11-20 21:28:17,039 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) [2022-11-20 21:28:17,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 4996 transitions. [2022-11-20 21:28:17,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-20 21:28:17,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:28:17,041 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] [2022-11-20 21:28:17,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 21:28:17,042 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)] === [2022-11-20 21:28:17,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:28:17,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1552721328, now seen corresponding path program 1 times [2022-11-20 21:28:17,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:28:17,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642882560] [2022-11-20 21:28:17,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:28:17,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:28:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:28:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:28:17,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:28:17,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642882560] [2022-11-20 21:28:17,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642882560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:28:17,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:28:17,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:28:17,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842587952] [2022-11-20 21:28:17,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:28:17,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:28:17,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:28:17,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:28:17,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:28:17,913 INFO L87 Difference]: Start difference. First operand 3241 states and 4996 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) [2022-11-20 21:28:21,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-20 21:28:23,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:28:25,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:28:26,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:28:26,676 INFO L93 Difference]: Finished difference Result 3245 states and 5004 transitions. [2022-11-20 21:28:26,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:28:26,676 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 [2022-11-20 21:28:26,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:28:26,699 INFO L225 Difference]: With dead ends: 3245 [2022-11-20 21:28:26,699 INFO L226 Difference]: Without dead ends: 3243 [2022-11-20 21:28:26,704 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 [2022-11-20 21:28:26,705 INFO L413 NwaCegarLoop]: 4624 mSDtfsCounter, 4933 mSDsluCounter, 4651 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4941 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, 8.3s IncrementalHoareTripleChecker+Time [2022-11-20 21:28:26,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4941 Valid, 9275 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-11-20 21:28:26,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3243 states. [2022-11-20 21:28:27,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3243 to 3239. [2022-11-20 21:28:27,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3239 states, 1464 states have (on average 1.2295081967213115) internal successors, (1800), 1575 states have internal predecessors, (1800), 1598 states have call successors, (1598), 160 states have call predecessors, (1598), 159 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2022-11-20 21:28:27,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3239 states to 3239 states and 4994 transitions. [2022-11-20 21:28:27,249 INFO L78 Accepts]: Start accepts. Automaton has 3239 states and 4994 transitions. Word has length 84 [2022-11-20 21:28:27,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:28:27,252 INFO L495 AbstractCegarLoop]: Abstraction has 3239 states and 4994 transitions. [2022-11-20 21:28:27,252 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) [2022-11-20 21:28:27,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3239 states and 4994 transitions. [2022-11-20 21:28:27,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-20 21:28:27,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:28:27,254 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] [2022-11-20 21:28:27,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 21:28:27,255 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)] === [2022-11-20 21:28:27,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:28:27,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1625311595, now seen corresponding path program 1 times [2022-11-20 21:28:27,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:28:27,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140929860] [2022-11-20 21:28:27,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:28:27,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:28:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:28:28,112 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:28:28,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:28:28,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140929860] [2022-11-20 21:28:28,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140929860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:28:28,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:28:28,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:28:28,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446118584] [2022-11-20 21:28:28,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:28:28,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:28:28,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:28:28,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:28:28,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:28:28,115 INFO L87 Difference]: Start difference. First operand 3239 states and 4994 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) [2022-11-20 21:28:31,771 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 [] [2022-11-20 21:28:34,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:28:35,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:28:35,396 INFO L93 Difference]: Finished difference Result 3251 states and 5011 transitions. [2022-11-20 21:28:35,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:28:35,397 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 [2022-11-20 21:28:35,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:28:35,416 INFO L225 Difference]: With dead ends: 3251 [2022-11-20 21:28:35,416 INFO L226 Difference]: Without dead ends: 3249 [2022-11-20 21:28:35,420 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 [2022-11-20 21:28:35,420 INFO L413 NwaCegarLoop]: 4622 mSDtfsCounter, 4919 mSDsluCounter, 4662 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4932 SdHoareTripleChecker+Valid, 9284 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 [2022-11-20 21:28:35,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4932 Valid, 9284 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-11-20 21:28:35,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3249 states. [2022-11-20 21:28:35,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3249 to 3243. [2022-11-20 21:28:35,775 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) [2022-11-20 21:28:35,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4995 transitions. [2022-11-20 21:28:35,800 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4995 transitions. Word has length 89 [2022-11-20 21:28:35,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:28:35,801 INFO L495 AbstractCegarLoop]: Abstraction has 3243 states and 4995 transitions. [2022-11-20 21:28:35,801 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) [2022-11-20 21:28:35,802 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4995 transitions. [2022-11-20 21:28:35,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-20 21:28:35,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:28:35,804 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] [2022-11-20 21:28:35,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 21:28:35,804 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)] === [2022-11-20 21:28:35,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:28:35,805 INFO L85 PathProgramCache]: Analyzing trace with hash -783766973, now seen corresponding path program 1 times [2022-11-20 21:28:35,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:28:35,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706628720] [2022-11-20 21:28:35,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:28:35,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:28:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:28:36,660 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:28:36,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:28:36,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706628720] [2022-11-20 21:28:36,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706628720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:28:36,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:28:36,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:28:36,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472748650] [2022-11-20 21:28:36,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:28:36,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:28:36,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:28:36,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:28:36,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:28:36,664 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) [2022-11-20 21:28:40,346 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 [] [2022-11-20 21:28:42,864 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 [] [2022-11-20 21:28:44,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:28:44,185 INFO L93 Difference]: Finished difference Result 3249 states and 5009 transitions. [2022-11-20 21:28:44,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:28:44,186 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 [2022-11-20 21:28:44,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:28:44,207 INFO L225 Difference]: With dead ends: 3249 [2022-11-20 21:28:44,207 INFO L226 Difference]: Without dead ends: 3247 [2022-11-20 21:28:44,211 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 [2022-11-20 21:28:44,212 INFO L413 NwaCegarLoop]: 4620 mSDtfsCounter, 4916 mSDsluCounter, 4660 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4929 SdHoareTripleChecker+Valid, 9280 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 [2022-11-20 21:28:44,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4929 Valid, 9280 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-11-20 21:28:44,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2022-11-20 21:28:44,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 3241. [2022-11-20 21:28:44,652 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) [2022-11-20 21:28:44,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 4993 transitions. [2022-11-20 21:28:44,678 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 4993 transitions. Word has length 94 [2022-11-20 21:28:44,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:28:44,679 INFO L495 AbstractCegarLoop]: Abstraction has 3241 states and 4993 transitions. [2022-11-20 21:28:44,679 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) [2022-11-20 21:28:44,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 4993 transitions. [2022-11-20 21:28:44,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 21:28:44,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:28:44,682 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] [2022-11-20 21:28:44,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 21:28:44,682 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)] === [2022-11-20 21:28:44,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:28:44,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1721994713, now seen corresponding path program 1 times [2022-11-20 21:28:44,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:28:44,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741693100] [2022-11-20 21:28:44,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:28:44,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:28:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:28:45,428 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:28:45,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:28:45,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741693100] [2022-11-20 21:28:45,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741693100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:28:45,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:28:45,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:28:45,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319628500] [2022-11-20 21:28:45,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:28:45,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:28:45,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:28:45,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:28:45,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:28:45,432 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) [2022-11-20 21:28:48,899 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 [] [2022-11-20 21:28:51,445 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 [] [2022-11-20 21:28:52,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:28:52,705 INFO L93 Difference]: Finished difference Result 3247 states and 5007 transitions. [2022-11-20 21:28:52,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:28:52,705 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 [2022-11-20 21:28:52,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:28:52,723 INFO L225 Difference]: With dead ends: 3247 [2022-11-20 21:28:52,723 INFO L226 Difference]: Without dead ends: 3245 [2022-11-20 21:28:52,726 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 [2022-11-20 21:28:52,727 INFO L413 NwaCegarLoop]: 4618 mSDtfsCounter, 4913 mSDsluCounter, 4658 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s 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, 6.7s IncrementalHoareTripleChecker+Time [2022-11-20 21:28:52,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4926 Valid, 9276 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-11-20 21:28:52,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2022-11-20 21:28:53,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3239. [2022-11-20 21:28:53,233 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) [2022-11-20 21:28:53,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3239 states to 3239 states and 4991 transitions. [2022-11-20 21:28:53,257 INFO L78 Accepts]: Start accepts. Automaton has 3239 states and 4991 transitions. Word has length 99 [2022-11-20 21:28:53,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:28:53,257 INFO L495 AbstractCegarLoop]: Abstraction has 3239 states and 4991 transitions. [2022-11-20 21:28:53,258 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) [2022-11-20 21:28:53,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3239 states and 4991 transitions. [2022-11-20 21:28:53,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-20 21:28:53,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:28:53,260 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] [2022-11-20 21:28:53,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 21:28:53,260 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)] === [2022-11-20 21:28:53,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:28:53,261 INFO L85 PathProgramCache]: Analyzing trace with hash 508296982, now seen corresponding path program 1 times [2022-11-20 21:28:53,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:28:53,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825533550] [2022-11-20 21:28:53,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:28:53,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:28:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:28:53,994 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:28:53,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:28:53,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825533550] [2022-11-20 21:28:53,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825533550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:28:53,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:28:53,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:28:53,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650923589] [2022-11-20 21:28:53,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:28:53,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:28:53,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:28:53,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:28:53,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:28:53,999 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) [2022-11-20 21:28:57,604 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 [] [2022-11-20 21:28:59,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:29:00,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:29:01,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:29:01,857 INFO L93 Difference]: Finished difference Result 3243 states and 4999 transitions. [2022-11-20 21:29:01,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:29:01,858 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 [2022-11-20 21:29:01,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:29:01,873 INFO L225 Difference]: With dead ends: 3243 [2022-11-20 21:29:01,873 INFO L226 Difference]: Without dead ends: 3241 [2022-11-20 21:29:01,877 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 [2022-11-20 21:29:01,878 INFO L413 NwaCegarLoop]: 4616 mSDtfsCounter, 4923 mSDsluCounter, 4643 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4931 SdHoareTripleChecker+Valid, 9259 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-20 21:29:01,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4931 Valid, 9259 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-11-20 21:29:01,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3241 states. [2022-11-20 21:29:02,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3241 to 3237. [2022-11-20 21:29:02,426 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) [2022-11-20 21:29:02,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 4989 transitions. [2022-11-20 21:29:02,452 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 4989 transitions. Word has length 104 [2022-11-20 21:29:02,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:29:02,452 INFO L495 AbstractCegarLoop]: Abstraction has 3237 states and 4989 transitions. [2022-11-20 21:29:02,453 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) [2022-11-20 21:29:02,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 4989 transitions. [2022-11-20 21:29:02,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-20 21:29:02,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:29:02,455 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] [2022-11-20 21:29:02,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 21:29:02,456 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)] === [2022-11-20 21:29:02,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:29:02,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1967701786, now seen corresponding path program 1 times [2022-11-20 21:29:02,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:29:02,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826561019] [2022-11-20 21:29:02,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:29:02,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:29:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:29:03,205 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:29:03,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:29:03,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826561019] [2022-11-20 21:29:03,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826561019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:29:03,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:29:03,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:29:03,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098402562] [2022-11-20 21:29:03,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:29:03,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:29:03,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:29:03,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:29:03,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:29:03,208 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) [2022-11-20 21:29:06,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-20 21:29:09,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:29:11,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:29:11,051 INFO L93 Difference]: Finished difference Result 3243 states and 5003 transitions. [2022-11-20 21:29:11,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:29:11,052 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 [2022-11-20 21:29:11,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:29:11,073 INFO L225 Difference]: With dead ends: 3243 [2022-11-20 21:29:11,074 INFO L226 Difference]: Without dead ends: 3241 [2022-11-20 21:29:11,077 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 [2022-11-20 21:29:11,078 INFO L413 NwaCegarLoop]: 4614 mSDtfsCounter, 4907 mSDsluCounter, 4654 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4920 SdHoareTripleChecker+Valid, 9268 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:29:11,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4920 Valid, 9268 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-11-20 21:29:11,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3241 states. [2022-11-20 21:29:11,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3241 to 3235. [2022-11-20 21:29:11,682 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) [2022-11-20 21:29:11,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3235 states to 3235 states and 4987 transitions. [2022-11-20 21:29:11,705 INFO L78 Accepts]: Start accepts. Automaton has 3235 states and 4987 transitions. Word has length 109 [2022-11-20 21:29:11,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:29:11,706 INFO L495 AbstractCegarLoop]: Abstraction has 3235 states and 4987 transitions. [2022-11-20 21:29:11,707 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) [2022-11-20 21:29:11,707 INFO L276 IsEmpty]: Start isEmpty. Operand 3235 states and 4987 transitions. [2022-11-20 21:29:11,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-20 21:29:11,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:29:11,710 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] [2022-11-20 21:29:11,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 21:29:11,711 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)] === [2022-11-20 21:29:11,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:29:11,711 INFO L85 PathProgramCache]: Analyzing trace with hash -717268787, now seen corresponding path program 1 times [2022-11-20 21:29:11,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:29:11,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293277855] [2022-11-20 21:29:11,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:29:11,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:29:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:29:13,096 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-20 21:29:13,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:29:13,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293277855] [2022-11-20 21:29:13,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293277855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:29:13,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:29:13,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 21:29:13,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112902736] [2022-11-20 21:29:13,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:29:13,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 21:29:13,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:29:13,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 21:29:13,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 21:29:13,100 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) [2022-11-20 21:29:17,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-20 21:29:19,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:29:20,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:29:23,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:29:26,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:29:26,964 INFO L93 Difference]: Finished difference Result 5457 states and 8498 transitions. [2022-11-20 21:29:26,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 21:29:26,964 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 [2022-11-20 21:29:26,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:29:27,002 INFO L225 Difference]: With dead ends: 5457 [2022-11-20 21:29:27,002 INFO L226 Difference]: Without dead ends: 5455 [2022-11-20 21:29:27,008 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 [2022-11-20 21:29:27,008 INFO L413 NwaCegarLoop]: 5868 mSDtfsCounter, 4863 mSDsluCounter, 15129 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s 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, 12.6s IncrementalHoareTripleChecker+Time [2022-11-20 21:29:27,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4870 Valid, 20997 Invalid, 1292 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1288 Invalid, 2 Unknown, 0 Unchecked, 12.6s Time] [2022-11-20 21:29:27,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5455 states. [2022-11-20 21:29:27,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5455 to 5434. [2022-11-20 21:29:27,960 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) [2022-11-20 21:29:27,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 8473 transitions. [2022-11-20 21:29:27,995 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 8473 transitions. Word has length 131 [2022-11-20 21:29:27,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:29:27,995 INFO L495 AbstractCegarLoop]: Abstraction has 5434 states and 8473 transitions. [2022-11-20 21:29:27,996 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) [2022-11-20 21:29:27,996 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 8473 transitions. [2022-11-20 21:29:27,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-20 21:29:27,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:29:27,998 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] [2022-11-20 21:29:27,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 21:29:27,999 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)] === [2022-11-20 21:29:27,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:29:28,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1571534449, now seen corresponding path program 1 times [2022-11-20 21:29:28,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:29:28,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030182028] [2022-11-20 21:29:28,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:29:28,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:29:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:29:28,920 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:29:28,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:29:28,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030182028] [2022-11-20 21:29:28,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030182028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:29:28,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:29:28,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:29:28,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183844784] [2022-11-20 21:29:28,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:29:28,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:29:28,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:29:28,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:29:28,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:29:28,925 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) [2022-11-20 21:29:32,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-20 21:29:33,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:29:35,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:29:38,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:29:38,212 INFO L93 Difference]: Finished difference Result 5438 states and 8476 transitions. [2022-11-20 21:29:38,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:29:38,212 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 [2022-11-20 21:29:38,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:29:38,241 INFO L225 Difference]: With dead ends: 5438 [2022-11-20 21:29:38,241 INFO L226 Difference]: Without dead ends: 5436 [2022-11-20 21:29:38,246 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 [2022-11-20 21:29:38,247 INFO L413 NwaCegarLoop]: 4612 mSDtfsCounter, 4917 mSDsluCounter, 4639 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s 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, 8.4s IncrementalHoareTripleChecker+Time [2022-11-20 21:29:38,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4925 Valid, 9251 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2022-11-20 21:29:38,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5436 states. [2022-11-20 21:29:39,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5436 to 5434. [2022-11-20 21:29:39,407 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) [2022-11-20 21:29:39,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 8473 transitions. [2022-11-20 21:29:39,433 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 8473 transitions. Word has length 114 [2022-11-20 21:29:39,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:29:39,433 INFO L495 AbstractCegarLoop]: Abstraction has 5434 states and 8473 transitions. [2022-11-20 21:29:39,433 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) [2022-11-20 21:29:39,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 8473 transitions. [2022-11-20 21:29:39,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-20 21:29:39,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:29:39,436 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] [2022-11-20 21:29:39,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 21:29:39,437 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)] === [2022-11-20 21:29:39,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:29:39,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1887767351, now seen corresponding path program 1 times [2022-11-20 21:29:39,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:29:39,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151476488] [2022-11-20 21:29:39,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:29:39,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:29:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:29:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:29:40,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:29:40,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151476488] [2022-11-20 21:29:40,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151476488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:29:40,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:29:40,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:29:40,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036000634] [2022-11-20 21:29:40,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:29:40,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:29:40,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:29:40,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:29:40,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:29:40,962 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) [2022-11-20 21:29:44,383 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 [] [2022-11-20 21:29:47,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:29:49,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:29:49,164 INFO L93 Difference]: Finished difference Result 5436 states and 8474 transitions. [2022-11-20 21:29:49,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:29:49,165 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 [2022-11-20 21:29:49,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:29:49,191 INFO L225 Difference]: With dead ends: 5436 [2022-11-20 21:29:49,191 INFO L226 Difference]: Without dead ends: 5434 [2022-11-20 21:29:49,195 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 [2022-11-20 21:29:49,195 INFO L413 NwaCegarLoop]: 4610 mSDtfsCounter, 4914 mSDsluCounter, 4637 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4922 SdHoareTripleChecker+Valid, 9247 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-20 21:29:49,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4922 Valid, 9247 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-11-20 21:29:49,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5434 states. [2022-11-20 21:29:50,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5434 to 5432. [2022-11-20 21:29:50,371 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) [2022-11-20 21:29:50,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 8471 transitions. [2022-11-20 21:29:50,397 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 8471 transitions. Word has length 119 [2022-11-20 21:29:50,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:29:50,397 INFO L495 AbstractCegarLoop]: Abstraction has 5432 states and 8471 transitions. [2022-11-20 21:29:50,397 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) [2022-11-20 21:29:50,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 8471 transitions. [2022-11-20 21:29:50,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-20 21:29:50,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:29:50,400 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] [2022-11-20 21:29:50,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 21:29:50,401 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)] === [2022-11-20 21:29:50,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:29:50,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1698668799, now seen corresponding path program 1 times [2022-11-20 21:29:50,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:29:50,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046052047] [2022-11-20 21:29:50,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:29:50,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:29:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:29:51,377 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-20 21:29:51,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:29:51,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046052047] [2022-11-20 21:29:51,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046052047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:29:51,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:29:51,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:29:51,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168063848] [2022-11-20 21:29:51,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:29:51,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:29:51,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:29:51,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:29:51,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:29:51,380 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) [2022-11-20 21:29:55,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-20 21:29:58,091 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 [] [2022-11-20 21:30:00,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:30:00,827 INFO L93 Difference]: Finished difference Result 5453 states and 8494 transitions. [2022-11-20 21:30:00,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 21:30:00,828 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 [2022-11-20 21:30:00,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:30:00,850 INFO L225 Difference]: With dead ends: 5453 [2022-11-20 21:30:00,850 INFO L226 Difference]: Without dead ends: 5451 [2022-11-20 21:30:00,854 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 [2022-11-20 21:30:00,854 INFO L413 NwaCegarLoop]: 7899 mSDtfsCounter, 3542 mSDsluCounter, 12452 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3543 SdHoareTripleChecker+Valid, 20351 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-20 21:30:00,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3543 Valid, 20351 Invalid, 1406 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1404 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-11-20 21:30:00,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5451 states. [2022-11-20 21:30:01,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5451 to 5440. [2022-11-20 21:30:01,835 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) [2022-11-20 21:30:01,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 8485 transitions. [2022-11-20 21:30:01,861 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 8485 transitions. Word has length 138 [2022-11-20 21:30:01,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:30:01,862 INFO L495 AbstractCegarLoop]: Abstraction has 5440 states and 8485 transitions. [2022-11-20 21:30:01,862 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) [2022-11-20 21:30:01,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 8485 transitions. [2022-11-20 21:30:01,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-20 21:30:01,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:30:01,866 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] [2022-11-20 21:30:01,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 21:30:01,866 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)] === [2022-11-20 21:30:01,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:30:01,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1352344869, now seen corresponding path program 1 times [2022-11-20 21:30:01,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:30:01,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225955709] [2022-11-20 21:30:01,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:30:01,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:30:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:30:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:30:02,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:30:02,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225955709] [2022-11-20 21:30:02,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225955709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:30:02,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:30:02,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:30:02,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431937055] [2022-11-20 21:30:02,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:30:02,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:30:02,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:30:02,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:30:02,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:30:02,599 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) [2022-11-20 21:30:06,207 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 [] [2022-11-20 21:30:08,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:30:11,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:30:11,198 INFO L93 Difference]: Finished difference Result 5451 states and 8492 transitions. [2022-11-20 21:30:11,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:30:11,198 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 [2022-11-20 21:30:11,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:30:11,227 INFO L225 Difference]: With dead ends: 5451 [2022-11-20 21:30:11,227 INFO L226 Difference]: Without dead ends: 5449 [2022-11-20 21:30:11,232 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 [2022-11-20 21:30:11,233 INFO L413 NwaCegarLoop]: 5862 mSDtfsCounter, 4865 mSDsluCounter, 9255 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s 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, 7.6s IncrementalHoareTripleChecker+Time [2022-11-20 21:30:11,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4873 Valid, 15117 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 907 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-20 21:30:11,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-11-20 21:30:12,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5438. [2022-11-20 21:30:12,074 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) [2022-11-20 21:30:12,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 8483 transitions. [2022-11-20 21:30:12,179 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 8483 transitions. Word has length 124 [2022-11-20 21:30:12,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:30:12,180 INFO L495 AbstractCegarLoop]: Abstraction has 5438 states and 8483 transitions. [2022-11-20 21:30:12,180 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) [2022-11-20 21:30:12,180 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 8483 transitions. [2022-11-20 21:30:12,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-20 21:30:12,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:30:12,182 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] [2022-11-20 21:30:12,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 21:30:12,182 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)] === [2022-11-20 21:30:12,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:30:12,182 INFO L85 PathProgramCache]: Analyzing trace with hash 208582045, now seen corresponding path program 1 times [2022-11-20 21:30:12,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:30:12,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851118504] [2022-11-20 21:30:12,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:30:12,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:30:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:30:12,865 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:30:12,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:30:12,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851118504] [2022-11-20 21:30:12,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851118504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:30:12,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:30:12,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:30:12,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602698156] [2022-11-20 21:30:12,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:30:12,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:30:12,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:30:12,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:30:12,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:30:12,869 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) [2022-11-20 21:30:16,168 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 [] [2022-11-20 21:30:19,077 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 [] [2022-11-20 21:30:21,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:30:21,292 INFO L93 Difference]: Finished difference Result 5440 states and 8484 transitions. [2022-11-20 21:30:21,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:30:21,295 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 [2022-11-20 21:30:21,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:30:21,314 INFO L225 Difference]: With dead ends: 5440 [2022-11-20 21:30:21,314 INFO L226 Difference]: Without dead ends: 5438 [2022-11-20 21:30:21,318 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 [2022-11-20 21:30:21,318 INFO L413 NwaCegarLoop]: 4606 mSDtfsCounter, 4908 mSDsluCounter, 4633 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4916 SdHoareTripleChecker+Valid, 9239 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-20 21:30:21,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4916 Valid, 9239 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-11-20 21:30:21,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5438 states. [2022-11-20 21:30:22,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5438 to 5436. [2022-11-20 21:30:22,142 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) [2022-11-20 21:30:22,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 8481 transitions. [2022-11-20 21:30:22,168 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 8481 transitions. Word has length 129 [2022-11-20 21:30:22,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:30:22,168 INFO L495 AbstractCegarLoop]: Abstraction has 5436 states and 8481 transitions. [2022-11-20 21:30:22,168 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) [2022-11-20 21:30:22,168 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 8481 transitions. [2022-11-20 21:30:22,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-20 21:30:22,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:30:22,171 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] [2022-11-20 21:30:22,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 21:30:22,172 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)] === [2022-11-20 21:30:22,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:30:22,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1205762273, now seen corresponding path program 1 times [2022-11-20 21:30:22,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:30:22,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423396291] [2022-11-20 21:30:22,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:30:22,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:30:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:30:22,805 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:30:22,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:30:22,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423396291] [2022-11-20 21:30:22,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423396291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:30:22,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:30:22,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:30:22,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805127773] [2022-11-20 21:30:22,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:30:22,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:30:22,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:30:22,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:30:22,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:30:22,807 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) [2022-11-20 21:30:26,190 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 [] [2022-11-20 21:30:28,753 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 [] [2022-11-20 21:30:30,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:30:30,247 INFO L93 Difference]: Finished difference Result 5440 states and 8488 transitions. [2022-11-20 21:30:30,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:30:30,248 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 [2022-11-20 21:30:30,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:30:30,271 INFO L225 Difference]: With dead ends: 5440 [2022-11-20 21:30:30,271 INFO L226 Difference]: Without dead ends: 5438 [2022-11-20 21:30:30,276 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 [2022-11-20 21:30:30,276 INFO L413 NwaCegarLoop]: 4604 mSDtfsCounter, 4892 mSDsluCounter, 4644 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4905 SdHoareTripleChecker+Valid, 9248 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-20 21:30:30,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4905 Valid, 9248 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-11-20 21:30:30,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5438 states. [2022-11-20 21:30:31,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5438 to 5434. [2022-11-20 21:30:31,146 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) [2022-11-20 21:30:31,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 8479 transitions. [2022-11-20 21:30:31,171 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 8479 transitions. Word has length 134 [2022-11-20 21:30:31,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:30:31,172 INFO L495 AbstractCegarLoop]: Abstraction has 5434 states and 8479 transitions. [2022-11-20 21:30:31,172 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) [2022-11-20 21:30:31,173 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 8479 transitions. [2022-11-20 21:30:31,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-20 21:30:31,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:30:31,175 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] [2022-11-20 21:30:31,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 21:30:31,175 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)] === [2022-11-20 21:30:31,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:30:31,176 INFO L85 PathProgramCache]: Analyzing trace with hash 808473213, now seen corresponding path program 1 times [2022-11-20 21:30:31,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:30:31,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614250483] [2022-11-20 21:30:31,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:30:31,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:30:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:30:33,609 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-11-20 21:30:33,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:30:33,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614250483] [2022-11-20 21:30:33,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614250483] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:30:33,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310974307] [2022-11-20 21:30:33,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:30:33,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:30:33,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:30:33,616 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:30:33,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 21:30:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:30:35,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 5178 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-20 21:30:35,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:30:35,980 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-20 21:30:35,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:30:35,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310974307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:30:35,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 21:30:35,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2022-11-20 21:30:35,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975414550] [2022-11-20 21:30:35,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:30:35,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 21:30:35,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:30:35,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 21:30:35,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-11-20 21:30:35,984 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) [2022-11-20 21:30:46,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-20 21:30:50,188 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 [] [2022-11-20 21:30:58,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:30:58,608 INFO L93 Difference]: Finished difference Result 12182 states and 19137 transitions. [2022-11-20 21:30:58,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 21:30:58,609 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 [2022-11-20 21:30:58,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:30:58,648 INFO L225 Difference]: With dead ends: 12182 [2022-11-20 21:30:58,649 INFO L226 Difference]: Without dead ends: 6765 [2022-11-20 21:30:58,794 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 [2022-11-20 21:30:58,794 INFO L413 NwaCegarLoop]: 5756 mSDtfsCounter, 1510 mSDsluCounter, 55166 mSDsCounter, 0 mSdLazyCounter, 6051 mSolverCounterSat, 1037 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1794 SdHoareTripleChecker+Valid, 60922 SdHoareTripleChecker+Invalid, 7090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1037 IncrementalHoareTripleChecker+Valid, 6051 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:30:58,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1794 Valid, 60922 Invalid, 7090 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1037 Valid, 6051 Invalid, 2 Unknown, 0 Unchecked, 20.2s Time] [2022-11-20 21:30:58,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6765 states. [2022-11-20 21:31:00,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6765 to 5446. [2022-11-20 21:31:00,027 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) [2022-11-20 21:31:00,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5446 states to 5446 states and 8495 transitions. [2022-11-20 21:31:00,068 INFO L78 Accepts]: Start accepts. Automaton has 5446 states and 8495 transitions. Word has length 166 [2022-11-20 21:31:00,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:31:00,068 INFO L495 AbstractCegarLoop]: Abstraction has 5446 states and 8495 transitions. [2022-11-20 21:31:00,068 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) [2022-11-20 21:31:00,069 INFO L276 IsEmpty]: Start isEmpty. Operand 5446 states and 8495 transitions. [2022-11-20 21:31:00,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-20 21:31:00,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:31:00,071 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] [2022-11-20 21:31:00,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 21:31:00,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-20 21:31:00,286 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)] === [2022-11-20 21:31:00,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:31:00,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2053438705, now seen corresponding path program 1 times [2022-11-20 21:31:00,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:31:00,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617318257] [2022-11-20 21:31:00,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:31:00,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:31:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:31:00,986 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:31:00,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:31:00,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617318257] [2022-11-20 21:31:00,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617318257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:31:00,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:31:00,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:31:00,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57336573] [2022-11-20 21:31:00,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:31:00,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:31:00,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:31:00,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:31:00,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:31:00,989 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) [2022-11-20 21:31:04,454 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 [] [2022-11-20 21:31:07,547 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 [] [2022-11-20 21:31:10,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:31:10,105 INFO L93 Difference]: Finished difference Result 5448 states and 8496 transitions. [2022-11-20 21:31:10,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:31:10,105 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 [2022-11-20 21:31:10,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:31:10,124 INFO L225 Difference]: With dead ends: 5448 [2022-11-20 21:31:10,124 INFO L226 Difference]: Without dead ends: 5446 [2022-11-20 21:31:10,127 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 [2022-11-20 21:31:10,128 INFO L413 NwaCegarLoop]: 4602 mSDtfsCounter, 4902 mSDsluCounter, 4629 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4910 SdHoareTripleChecker+Valid, 9231 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:31:10,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4910 Valid, 9231 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-11-20 21:31:10,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5446 states. [2022-11-20 21:31:11,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5446 to 5444. [2022-11-20 21:31:11,165 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) [2022-11-20 21:31:11,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 8493 transitions. [2022-11-20 21:31:11,189 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 8493 transitions. Word has length 139 [2022-11-20 21:31:11,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:31:11,190 INFO L495 AbstractCegarLoop]: Abstraction has 5444 states and 8493 transitions. [2022-11-20 21:31:11,190 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) [2022-11-20 21:31:11,190 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 8493 transitions. [2022-11-20 21:31:11,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-20 21:31:11,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:31:11,192 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] [2022-11-20 21:31:11,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 21:31:11,192 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)] === [2022-11-20 21:31:11,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:31:11,193 INFO L85 PathProgramCache]: Analyzing trace with hash 198158865, now seen corresponding path program 1 times [2022-11-20 21:31:11,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:31:11,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675867713] [2022-11-20 21:31:11,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:31:11,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:31:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:31:11,815 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 21:31:11,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:31:11,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675867713] [2022-11-20 21:31:11,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675867713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:31:11,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:31:11,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:31:11,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867579547] [2022-11-20 21:31:11,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:31:11,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:31:11,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:31:11,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:31:11,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:31:11,818 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) [2022-11-20 21:31:14,977 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 [] [2022-11-20 21:31:18,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:31:20,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:31:20,326 INFO L93 Difference]: Finished difference Result 5446 states and 8494 transitions. [2022-11-20 21:31:20,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:31:20,327 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 [2022-11-20 21:31:20,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:31:20,346 INFO L225 Difference]: With dead ends: 5446 [2022-11-20 21:31:20,347 INFO L226 Difference]: Without dead ends: 5292 [2022-11-20 21:31:20,350 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 [2022-11-20 21:31:20,351 INFO L413 NwaCegarLoop]: 4601 mSDtfsCounter, 4899 mSDsluCounter, 4628 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4905 SdHoareTripleChecker+Valid, 9229 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-20 21:31:20,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4905 Valid, 9229 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-11-20 21:31:20,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5292 states. [2022-11-20 21:31:21,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5292 to 5290. [2022-11-20 21:31:21,812 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) [2022-11-20 21:31:21,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 8301 transitions. [2022-11-20 21:31:21,843 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 8301 transitions. Word has length 144 [2022-11-20 21:31:21,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:31:21,843 INFO L495 AbstractCegarLoop]: Abstraction has 5290 states and 8301 transitions. [2022-11-20 21:31:21,843 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) [2022-11-20 21:31:21,843 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 8301 transitions. [2022-11-20 21:31:21,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-11-20 21:31:21,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:31:21,846 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] [2022-11-20 21:31:21,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 21:31:21,847 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)] === [2022-11-20 21:31:21,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:31:21,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1038340358, now seen corresponding path program 1 times [2022-11-20 21:31:21,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:31:21,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672325442] [2022-11-20 21:31:21,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:31:21,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:31:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:31:24,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1599 trivial. 0 not checked. [2022-11-20 21:31:24,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:31:24,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672325442] [2022-11-20 21:31:24,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672325442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:31:24,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:31:24,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 21:31:24,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293680502] [2022-11-20 21:31:24,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:31:24,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 21:31:24,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:31:24,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 21:31:24,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 21:31:24,004 INFO L87 Difference]: Start difference. First operand 5290 states and 8301 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2022-11-20 21:31:29,305 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 [] [2022-11-20 21:31:32,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:31:39,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:31:39,461 INFO L93 Difference]: Finished difference Result 5502 states and 8508 transitions. [2022-11-20 21:31:39,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 21:31:39,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 290 [2022-11-20 21:31:39,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:31:39,487 INFO L225 Difference]: With dead ends: 5502 [2022-11-20 21:31:39,487 INFO L226 Difference]: Without dead ends: 5500 [2022-11-20 21:31:39,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 21:31:39,491 INFO L413 NwaCegarLoop]: 4443 mSDtfsCounter, 4483 mSDsluCounter, 10618 mSDsCounter, 0 mSdLazyCounter, 4379 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4497 SdHoareTripleChecker+Valid, 15061 SdHoareTripleChecker+Invalid, 4383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4379 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-20 21:31:39,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4497 Valid, 15061 Invalid, 4383 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 4379 Invalid, 2 Unknown, 0 Unchecked, 13.7s Time] [2022-11-20 21:31:39,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5500 states. [2022-11-20 21:31:40,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5500 to 5494. [2022-11-20 21:31:40,616 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) [2022-11-20 21:31:40,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5494 states to 5494 states and 8497 transitions. [2022-11-20 21:31:40,647 INFO L78 Accepts]: Start accepts. Automaton has 5494 states and 8497 transitions. Word has length 290 [2022-11-20 21:31:40,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:31:40,648 INFO L495 AbstractCegarLoop]: Abstraction has 5494 states and 8497 transitions. [2022-11-20 21:31:40,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2022-11-20 21:31:40,648 INFO L276 IsEmpty]: Start isEmpty. Operand 5494 states and 8497 transitions. [2022-11-20 21:31:40,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-11-20 21:31:40,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:31:40,652 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] [2022-11-20 21:31:40,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 21:31:40,653 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)] === [2022-11-20 21:31:40,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:31:40,653 INFO L85 PathProgramCache]: Analyzing trace with hash -317212259, now seen corresponding path program 1 times [2022-11-20 21:31:40,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:31:40,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382528155] [2022-11-20 21:31:40,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:31:40,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:31:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:31:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1599 trivial. 0 not checked. [2022-11-20 21:31:41,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:31:41,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382528155] [2022-11-20 21:31:41,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382528155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:31:41,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:31:41,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:31:41,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102030347] [2022-11-20 21:31:41,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:31:41,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:31:41,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:31:41,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:31:41,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:31:41,230 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) [2022-11-20 21:31:43,945 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 [] [2022-11-20 21:31:46,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:31:46,694 INFO L93 Difference]: Finished difference Result 10964 states and 17001 transitions. [2022-11-20 21:31:46,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:31:46,698 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 [2022-11-20 21:31:46,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:31:46,732 INFO L225 Difference]: With dead ends: 10964 [2022-11-20 21:31:46,732 INFO L226 Difference]: Without dead ends: 5486 [2022-11-20 21:31:46,763 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 [2022-11-20 21:31:46,764 INFO L413 NwaCegarLoop]: 4431 mSDtfsCounter, 4673 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4679 SdHoareTripleChecker+Valid, 4458 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-20 21:31:46,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4679 Valid, 4458 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-20 21:31:46,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5486 states. [2022-11-20 21:31:47,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5486 to 5484. [2022-11-20 21:31:47,859 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) [2022-11-20 21:31:47,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 8480 transitions. [2022-11-20 21:31:47,892 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 8480 transitions. Word has length 292 [2022-11-20 21:31:47,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:31:47,893 INFO L495 AbstractCegarLoop]: Abstraction has 5484 states and 8480 transitions. [2022-11-20 21:31:47,893 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) [2022-11-20 21:31:47,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 8480 transitions. [2022-11-20 21:31:47,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2022-11-20 21:31:47,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:31:47,909 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] [2022-11-20 21:31:47,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-20 21:31:47,909 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)] === [2022-11-20 21:31:47,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:31:47,910 INFO L85 PathProgramCache]: Analyzing trace with hash 480287058, now seen corresponding path program 1 times [2022-11-20 21:31:47,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:31:47,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430236863] [2022-11-20 21:31:47,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:31:47,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:31:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:31:48,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked. [2022-11-20 21:31:48,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:31:48,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430236863] [2022-11-20 21:31:48,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430236863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:31:48,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:31:48,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:31:48,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505906533] [2022-11-20 21:31:48,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:31:48,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:31:48,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:31:48,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:31:48,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:31:48,568 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) [2022-11-20 21:31:52,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-20 21:31:54,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:31:57,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:31:57,266 INFO L93 Difference]: Finished difference Result 10960 states and 16967 transitions. [2022-11-20 21:31:57,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:31:57,266 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 [2022-11-20 21:31:57,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:31:57,290 INFO L225 Difference]: With dead ends: 10960 [2022-11-20 21:31:57,290 INFO L226 Difference]: Without dead ends: 5492 [2022-11-20 21:31:57,315 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 [2022-11-20 21:31:57,315 INFO L413 NwaCegarLoop]: 4418 mSDtfsCounter, 5 mSDsluCounter, 8823 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13241 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-20 21:31:57,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13241 Invalid, 1030 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1027 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-11-20 21:31:57,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5492 states. [2022-11-20 21:31:58,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5492 to 5490. [2022-11-20 21:31:58,434 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) [2022-11-20 21:31:58,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5490 states to 5490 states and 8486 transitions. [2022-11-20 21:31:58,459 INFO L78 Accepts]: Start accepts. Automaton has 5490 states and 8486 transitions. Word has length 407 [2022-11-20 21:31:58,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:31:58,460 INFO L495 AbstractCegarLoop]: Abstraction has 5490 states and 8486 transitions. [2022-11-20 21:31:58,461 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) [2022-11-20 21:31:58,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5490 states and 8486 transitions. [2022-11-20 21:31:58,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2022-11-20 21:31:58,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:31:58,475 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, 1] [2022-11-20 21:31:58,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-20 21:31:58,476 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)] === [2022-11-20 21:31:58,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:31:58,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1518142242, now seen corresponding path program 1 times [2022-11-20 21:31:58,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:31:58,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042017459] [2022-11-20 21:31:58,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:31:58,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:31:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:31:59,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked. [2022-11-20 21:31:59,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:31:59,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042017459] [2022-11-20 21:31:59,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042017459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:31:59,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:31:59,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:31:59,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743688737] [2022-11-20 21:31:59,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:31:59,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:31:59,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:31:59,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:31:59,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:31:59,069 INFO L87 Difference]: Start difference. First operand 5490 states and 8486 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2022-11-20 21:32:02,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-20 21:32:03,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:32:04,957 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 [] [2022-11-20 21:32:07,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:32:07,421 INFO L93 Difference]: Finished difference Result 10998 states and 17019 transitions. [2022-11-20 21:32:07,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:32:07,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 410 [2022-11-20 21:32:07,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:32:07,445 INFO L225 Difference]: With dead ends: 10998 [2022-11-20 21:32:07,445 INFO L226 Difference]: Without dead ends: 5524 [2022-11-20 21:32:07,465 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 [2022-11-20 21:32:07,466 INFO L413 NwaCegarLoop]: 4430 mSDtfsCounter, 12 mSDsluCounter, 4420 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s 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, 7.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:32:07,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 8850 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 683 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-11-20 21:32:07,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5524 states. [2022-11-20 21:32:08,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5524 to 5492. [2022-11-20 21:32:08,450 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) [2022-11-20 21:32:08,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5492 states to 5492 states and 8488 transitions. [2022-11-20 21:32:08,475 INFO L78 Accepts]: Start accepts. Automaton has 5492 states and 8488 transitions. Word has length 410 [2022-11-20 21:32:08,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:32:08,476 INFO L495 AbstractCegarLoop]: Abstraction has 5492 states and 8488 transitions. [2022-11-20 21:32:08,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2022-11-20 21:32:08,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5492 states and 8488 transitions. [2022-11-20 21:32:08,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-11-20 21:32:08,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:32:08,489 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] [2022-11-20 21:32:08,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-20 21:32:08,489 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)] === [2022-11-20 21:32:08,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:32:08,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1511339828, now seen corresponding path program 1 times [2022-11-20 21:32:08,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:32:08,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307809204] [2022-11-20 21:32:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:32:08,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:32:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:32:14,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1815 backedges. 10 proven. 116 refuted. 0 times theorem prover too weak. 1689 trivial. 0 not checked. [2022-11-20 21:32:14,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:32:14,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307809204] [2022-11-20 21:32:14,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307809204] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:32:14,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323643653] [2022-11-20 21:32:14,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:32:14,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:32:14,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:32:14,398 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:32:14,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 21:32:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:32:16,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 6342 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 21:32:16,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:32:17,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1815 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 1733 trivial. 0 not checked. [2022-11-20 21:32:17,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:32:17,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323643653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:32:17,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 21:32:17,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [9] total 20 [2022-11-20 21:32:17,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954840481] [2022-11-20 21:32:17,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:32:17,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 21:32:17,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:32:17,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 21:32:17,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2022-11-20 21:32:17,071 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) [2022-11-20 21:32:23,864 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 [] [2022-11-20 21:32:29,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:32:30,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:32:32,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:32:34,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:32:36,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:32:38,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:32:40,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:32:42,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:32:44,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:32:46,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:32:48,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:32:50,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:32:52,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:32:53,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:33:04,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:33:04,382 INFO L93 Difference]: Finished difference Result 11540 states and 17888 transitions. [2022-11-20 21:33:04,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 21:33:04,383 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 [2022-11-20 21:33:04,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:33:04,416 INFO L225 Difference]: With dead ends: 11540 [2022-11-20 21:33:04,416 INFO L226 Difference]: Without dead ends: 6063 [2022-11-20 21:33:04,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2022-11-20 21:33:04,441 INFO L413 NwaCegarLoop]: 5084 mSDtfsCounter, 426 mSDsluCounter, 65381 mSDsCounter, 0 mSdLazyCounter, 7411 mSolverCounterSat, 3 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 70465 SdHoareTripleChecker+Invalid, 7424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7411 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:33:04,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 70465 Invalid, 7424 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 7411 Invalid, 10 Unknown, 0 Unchecked, 45.1s Time] [2022-11-20 21:33:04,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6063 states. [2022-11-20 21:33:05,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6063 to 5503. [2022-11-20 21:33:05,602 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) [2022-11-20 21:33:05,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5503 states to 5503 states and 8507 transitions. [2022-11-20 21:33:05,627 INFO L78 Accepts]: Start accepts. Automaton has 5503 states and 8507 transitions. Word has length 414 [2022-11-20 21:33:05,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:33:05,627 INFO L495 AbstractCegarLoop]: Abstraction has 5503 states and 8507 transitions. [2022-11-20 21:33:05,627 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) [2022-11-20 21:33:05,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5503 states and 8507 transitions. [2022-11-20 21:33:05,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2022-11-20 21:33:05,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:33:05,634 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, 1, 1] [2022-11-20 21:33:05,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 21:33:05,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:33:05,835 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)] === [2022-11-20 21:33:05,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:33:05,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1373849960, now seen corresponding path program 1 times [2022-11-20 21:33:05,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:33:05,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574869849] [2022-11-20 21:33:05,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:33:05,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:33:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:33:07,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1826 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1826 trivial. 0 not checked. [2022-11-20 21:33:07,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:33:07,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574869849] [2022-11-20 21:33:07,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574869849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:33:07,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:33:07,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 21:33:07,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352473215] [2022-11-20 21:33:07,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:33:07,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 21:33:07,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:33:07,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 21:33:07,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 21:33:07,792 INFO L87 Difference]: Start difference. First operand 5503 states and 8507 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2022-11-20 21:33:15,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-20 21:33:21,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:33:26,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:33:28,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 21:33:30,885 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 [] [2022-11-20 21:33:40,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:33:40,554 INFO L93 Difference]: Finished difference Result 5513 states and 8513 transitions. [2022-11-20 21:33:40,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 21:33:40,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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 420 [2022-11-20 21:33:40,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:33:40,577 INFO L225 Difference]: With dead ends: 5513 [2022-11-20 21:33:40,578 INFO L226 Difference]: Without dead ends: 5511 [2022-11-20 21:33:40,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-20 21:33:40,582 INFO L413 NwaCegarLoop]: 1291 mSDtfsCounter, 3008 mSDsluCounter, 2992 mSDsCounter, 0 mSdLazyCounter, 11140 mSolverCounterSat, 5226 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3257 SdHoareTripleChecker+Valid, 4283 SdHoareTripleChecker+Invalid, 16369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5226 IncrementalHoareTripleChecker+Valid, 11140 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2022-11-20 21:33:40,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3257 Valid, 4283 Invalid, 16369 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5226 Valid, 11140 Invalid, 3 Unknown, 0 Unchecked, 30.6s Time] [2022-11-20 21:33:40,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5511 states. [2022-11-20 21:33:41,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5511 to 5504. [2022-11-20 21:33:41,810 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) [2022-11-20 21:33:41,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5504 states to 5504 states and 8501 transitions. [2022-11-20 21:33:41,834 INFO L78 Accepts]: Start accepts. Automaton has 5504 states and 8501 transitions. Word has length 420 [2022-11-20 21:33:41,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:33:41,834 INFO L495 AbstractCegarLoop]: Abstraction has 5504 states and 8501 transitions. [2022-11-20 21:33:41,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 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) [2022-11-20 21:33:41,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5504 states and 8501 transitions. [2022-11-20 21:33:41,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2022-11-20 21:33:41,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:33:41,848 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, 1, 1, 1, 1] [2022-11-20 21:33:41,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-20 21:33:41,849 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)] === [2022-11-20 21:33:41,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:33:41,849 INFO L85 PathProgramCache]: Analyzing trace with hash -328855183, now seen corresponding path program 1 times [2022-11-20 21:33:41,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:33:41,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062280863] [2022-11-20 21:33:41,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:33:41,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:33:42,083 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 21:33:42,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [614241377] [2022-11-20 21:33:42,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:33:42,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:33:42,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:33:42,085 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:33:42,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 21:33:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:33:44,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 7044 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 21:33:44,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:33:44,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1912 trivial. 0 not checked. [2022-11-20 21:33:44,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:33:44,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:33:44,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062280863] [2022-11-20 21:33:44,621 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 21:33:44,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614241377] [2022-11-20 21:33:44,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614241377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:33:44,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:33:44,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 21:33:44,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34872608] [2022-11-20 21:33:44,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:33:44,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 21:33:44,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:33:44,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 21:33:44,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 21:33:44,624 INFO L87 Difference]: Start difference. First operand 5504 states and 8501 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 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) [2022-11-20 21:33:48,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-20 21:33:50,919 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 [] [2022-11-20 21:33:53,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:33:53,837 INFO L93 Difference]: Finished difference Result 5504 states and 8501 transitions. [2022-11-20 21:33:53,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 21:33:53,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 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 447 [2022-11-20 21:33:53,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:33:53,870 INFO L225 Difference]: With dead ends: 5504 [2022-11-20 21:33:53,871 INFO L226 Difference]: Without dead ends: 5502 [2022-11-20 21:33:53,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 21:33:53,877 INFO L413 NwaCegarLoop]: 4470 mSDtfsCounter, 261 mSDsluCounter, 13190 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s 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, 7.8s IncrementalHoareTripleChecker+Time [2022-11-20 21:33:53,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 17660 Invalid, 1420 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1418 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-11-20 21:33:53,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5502 states. [2022-11-20 21:33:55,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5502 to 5502. [2022-11-20 21:33:55,094 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) [2022-11-20 21:33:55,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 8497 transitions. [2022-11-20 21:33:55,119 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 8497 transitions. Word has length 447 [2022-11-20 21:33:55,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:33:55,119 INFO L495 AbstractCegarLoop]: Abstraction has 5502 states and 8497 transitions. [2022-11-20 21:33:55,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 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) [2022-11-20 21:33:55,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 8497 transitions. [2022-11-20 21:33:55,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2022-11-20 21:33:55,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:33:55,130 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] [2022-11-20 21:33:55,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-20 21:33:55,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:33:55,332 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)] === [2022-11-20 21:33:55,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:33:55,332 INFO L85 PathProgramCache]: Analyzing trace with hash 414468439, now seen corresponding path program 1 times [2022-11-20 21:33:55,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:33:55,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837115633] [2022-11-20 21:33:55,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:33:55,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:33:55,525 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 21:33:55,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [441153759] [2022-11-20 21:33:55,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:33:55,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:33:55,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:33:55,527 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:33:55,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a3c74ad-e7c3-4681-b011-92db50807e33/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 21:33:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:33:57,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 6950 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 21:33:58,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:33:58,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1862 backedges. 200 proven. 1 refuted. 0 times theorem prover too weak. 1661 trivial. 0 not checked. [2022-11-20 21:33:58,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:33:58,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1862 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2022-11-20 21:33:58,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:33:58,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837115633] [2022-11-20 21:33:58,664 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 21:33:58,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441153759] [2022-11-20 21:33:58,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441153759] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 21:33:58,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1859833930] [2022-11-20 21:33:58,708 INFO L159 IcfgInterpreter]: Started Sifa with 251 locations of interest [2022-11-20 21:33:58,709 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 21:33:58,713 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 21:33:58,719 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 21:33:58,720 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 21:34:15,151 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 [2022-11-20 21:34:17,450 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 [2022-11-20 21:34:18,012 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 [2022-11-20 21:34:19,138 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 [2022-11-20 21:34:21,631 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 [2022-11-20 21:34:23,105 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 [2022-11-20 21:34:24,436 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