./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/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_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V --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 --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:46:58,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:46:59,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:46:59,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:46:59,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:46:59,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:46:59,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:46:59,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:46:59,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:46:59,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:46:59,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:46:59,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:46:59,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:46:59,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:46:59,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:46:59,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:46:59,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:46:59,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:46:59,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:46:59,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:46:59,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:46:59,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:46:59,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:46:59,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:46:59,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:46:59,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:46:59,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:46:59,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:46:59,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:46:59,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:46:59,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:46:59,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:46:59,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:46:59,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:46:59,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:46:59,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:46:59,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:46:59,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:46:59,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:46:59,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:46:59,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:46:59,167 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:46:59,218 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:46:59,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:46:59,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:46:59,226 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:46:59,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:46:59,227 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:46:59,228 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:46:59,228 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:46:59,228 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:46:59,229 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:46:59,230 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:46:59,230 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:46:59,230 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:46:59,231 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:46:59,231 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:46:59,231 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:46:59,231 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:46:59,232 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:46:59,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:46:59,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:46:59,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:46:59,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:46:59,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:46:59,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:46:59,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:46:59,235 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:46:59,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:46:59,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:46:59,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:46:59,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:46:59,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:46:59,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:46:59,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:46:59,239 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:46:59,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:46:59,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:46:59,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:46:59,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:46:59,241 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 215f888dc671693e11ab9e6bd2129df5ac5b9449825c6d5223962a3561afda36 [2021-11-23 03:46:59,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:46:59,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:46:59,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:46:59,638 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:46:59,640 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:46:59,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i [2021-11-23 03:46:59,728 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/data/1c2910294/8550c1fca42f46c29f207e5659199196/FLAGda3f235b5 [2021-11-23 03:47:00,906 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:47:00,907 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i [2021-11-23 03:47:01,003 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/data/1c2910294/8550c1fca42f46c29f207e5659199196/FLAGda3f235b5 [2021-11-23 03:47:01,072 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/data/1c2910294/8550c1fca42f46c29f207e5659199196 [2021-11-23 03:47:01,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:47:01,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:47:01,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:47:01,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:47:01,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:47:01,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:47:01" (1/1) ... [2021-11-23 03:47:01,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a130303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:01, skipping insertion in model container [2021-11-23 03:47:01,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:47:01" (1/1) ... [2021-11-23 03:47:01,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:47:01,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:47:09,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,101 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,101 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,110 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,110 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,115 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,115 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,117 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,117 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,120 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,120 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,121 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,121 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,122 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,122 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,123 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,123 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,124 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,124 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,125 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,125 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,127 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,127 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,128 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,128 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,129 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,129 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:47:09,235 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:47:09,837 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,839 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,839 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,840 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,840 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,840 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,841 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,841 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,842 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,843 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,843 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,844 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,844 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,847 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,847 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,854 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/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] [2021-11-23 03:47:09,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:47:10,209 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:47:10,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:10 WrapperNode [2021-11-23 03:47:10,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:47:10,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:47:10,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:47:10,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:47:10,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:10" (1/1) ... [2021-11-23 03:47:10,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:10" (1/1) ... [2021-11-23 03:47:10,771 INFO L137 Inliner]: procedures = 800, calls = 5082, calls flagged for inlining = 403, calls inlined = 325, statements flattened = 9643 [2021-11-23 03:47:10,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:47:10,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:47:10,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:47:10,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:47:10,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:10" (1/1) ... [2021-11-23 03:47:10,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:10" (1/1) ... [2021-11-23 03:47:10,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:10" (1/1) ... [2021-11-23 03:47:10,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:10" (1/1) ... [2021-11-23 03:47:11,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:10" (1/1) ... [2021-11-23 03:47:11,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:10" (1/1) ... [2021-11-23 03:47:11,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:10" (1/1) ... [2021-11-23 03:47:11,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:47:11,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:47:11,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:47:11,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:47:11,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:10" (1/1) ... [2021-11-23 03:47:11,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:47:11,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:47:11,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:47:11,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:47:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_125 [2021-11-23 03:47:11,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_125 [2021-11-23 03:47:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-23 03:47:11,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-23 03:47:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 03:47:11,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 03:47:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 03:47:11,447 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 03:47:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-23 03:47:11,448 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-23 03:47:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_rtnetlink__double_lock [2021-11-23 03:47:11,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_rtnetlink__double_lock [2021-11-23 03:47:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2021-11-23 03:47:11,450 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2021-11-23 03:47:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2021-11-23 03:47:11,450 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2021-11-23 03:47:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2021-11-23 03:47:11,451 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2021-11-23 03:47:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-23 03:47:11,451 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-23 03:47:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2021-11-23 03:47:11,451 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2021-11-23 03:47:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-23 03:47:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-23 03:47:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 03:47:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 03:47:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2021-11-23 03:47:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2021-11-23 03:47:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 03:47:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 03:47:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2021-11-23 03:47:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2021-11-23 03:47:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2021-11-23 03:47:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2021-11-23 03:47:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-23 03:47:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-23 03:47:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:47:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-23 03:47:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-23 03:47:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 03:47:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 03:47:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2021-11-23 03:47:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2021-11-23 03:47:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-23 03:47:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-23 03:47:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 03:47:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 03:47:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2021-11-23 03:47:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2021-11-23 03:47:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2021-11-23 03:47:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2021-11-23 03:47:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-23 03:47:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-23 03:47:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-23 03:47:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-23 03:47:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:47:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:47:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 03:47:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 03:47:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 03:47:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 03:47:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:47:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2021-11-23 03:47:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2021-11-23 03:47:11,468 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_start [2021-11-23 03:47:11,472 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_start [2021-11-23 03:47:11,472 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2021-11-23 03:47:11,472 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2021-11-23 03:47:11,472 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 03:47:11,472 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 03:47:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2021-11-23 03:47:11,473 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2021-11-23 03:47:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2021-11-23 03:47:11,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2021-11-23 03:47:11,474 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-23 03:47:11,479 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-23 03:47:11,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:47:11,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:47:11,479 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 03:47:11,480 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 03:47:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 03:47:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_tx [2021-11-23 03:47:11,480 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_tx [2021-11-23 03:47:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2021-11-23 03:47:11,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2021-11-23 03:47:11,480 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2021-11-23 03:47:11,481 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2021-11-23 03:47:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 03:47:11,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 03:47:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-23 03:47:11,482 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-23 03:47:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2021-11-23 03:47:11,482 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2021-11-23 03:47:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_122 [2021-11-23 03:47:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_122 [2021-11-23 03:47:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-23 03:47:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-23 03:47:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2021-11-23 03:47:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2021-11-23 03:47:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-23 03:47:11,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-23 03:47:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:47:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-23 03:47:11,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-23 03:47:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:47:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_stop [2021-11-23 03:47:11,484 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_stop [2021-11-23 03:47:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2021-11-23 03:47:11,485 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2021-11-23 03:47:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 03:47:11,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 03:47:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2021-11-23 03:47:11,485 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2021-11-23 03:47:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_readreg [2021-11-23 03:47:11,486 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_readreg [2021-11-23 03:47:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-23 03:47:11,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-23 03:47:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-23 03:47:11,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-23 03:47:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2021-11-23 03:47:11,487 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2021-11-23 03:47:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:47:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 03:47:11,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 03:47:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2021-11-23 03:47:11,488 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2021-11-23 03:47:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_conf_ac_parm [2021-11-23 03:47:11,488 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_conf_ac_parm [2021-11-23 03:47:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-23 03:47:11,489 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-23 03:47:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2021-11-23 03:47:11,489 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2021-11-23 03:47:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 03:47:11,489 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 03:47:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2021-11-23 03:47:11,490 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2021-11-23 03:47:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2021-11-23 03:47:11,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2021-11-23 03:47:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-23 03:47:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2021-11-23 03:47:11,490 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2021-11-23 03:47:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-11-23 03:47:11,491 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-11-23 03:47:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2021-11-23 03:47:11,491 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2021-11-23 03:47:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2021-11-23 03:47:11,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2021-11-23 03:47:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-23 03:47:11,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-23 03:47:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2021-11-23 03:47:11,492 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2021-11-23 03:47:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2021-11-23 03:47:11,492 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2021-11-23 03:47:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-23 03:47:11,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-23 03:47:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 03:47:11,493 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 03:47:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 03:47:11,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 03:47:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2021-11-23 03:47:11,493 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2021-11-23 03:47:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2021-11-23 03:47:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2021-11-23 03:47:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_writereg [2021-11-23 03:47:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_writereg [2021-11-23 03:47:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-23 03:47:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-23 03:47:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_generic_frame_duration [2021-11-23 03:47:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_generic_frame_duration [2021-11-23 03:47:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-23 03:47:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-23 03:47:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2021-11-23 03:47:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2021-11-23 03:47:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-23 03:47:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-23 03:47:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 03:47:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 03:47:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2021-11-23 03:47:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2021-11-23 03:47:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2021-11-23 03:47:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2021-11-23 03:47:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2021-11-23 03:47:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2021-11-23 03:47:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 03:47:11,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 03:47:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2021-11-23 03:47:11,497 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2021-11-23 03:47:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 03:47:11,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 03:47:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-23 03:47:11,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-23 03:47:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:47:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2021-11-23 03:47:11,498 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2021-11-23 03:47:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2021-11-23 03:47:11,498 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2021-11-23 03:47:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 03:47:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2021-11-23 03:47:11,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2021-11-23 03:47:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 03:47:11,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 03:47:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 03:47:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-23 03:47:11,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-23 03:47:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 03:47:11,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 03:47:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2021-11-23 03:47:11,502 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2021-11-23 03:47:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 03:47:11,502 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 03:47:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-23 03:47:11,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-23 03:47:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 03:47:11,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 03:47:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 03:47:11,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 03:47:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_5 [2021-11-23 03:47:11,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_5 [2021-11-23 03:47:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_6 [2021-11-23 03:47:11,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_6 [2021-11-23 03:47:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-11-23 03:47:11,504 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-11-23 03:47:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2021-11-23 03:47:11,504 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2021-11-23 03:47:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-23 03:47:11,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-23 03:47:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2021-11-23 03:47:11,505 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2021-11-23 03:47:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-23 03:47:11,505 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-23 03:47:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-11-23 03:47:11,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-11-23 03:47:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2021-11-23 03:47:11,505 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2021-11-23 03:47:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:47:11,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:47:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:47:11,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:47:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_init [2021-11-23 03:47:11,506 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_init [2021-11-23 03:47:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-23 03:47:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-23 03:47:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam2 [2021-11-23 03:47:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam2 [2021-11-23 03:47:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2021-11-23 03:47:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2021-11-23 03:47:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2021-11-23 03:47:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2021-11-23 03:47:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_basic_rates [2021-11-23 03:47:11,508 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_basic_rates [2021-11-23 03:47:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2021-11-23 03:47:11,508 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2021-11-23 03:47:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 03:47:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 03:47:11,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 03:47:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-11-23 03:47:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-11-23 03:47:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 03:47:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 03:47:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-23 03:47:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-23 03:47:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2021-11-23 03:47:11,510 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2021-11-23 03:47:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2021-11-23 03:47:11,510 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2021-11-23 03:47:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-23 03:47:11,510 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-23 03:47:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_set_channel [2021-11-23 03:47:11,510 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_set_channel [2021-11-23 03:47:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_rtl8180_priv [2021-11-23 03:47:11,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_rtl8180_priv [2021-11-23 03:47:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_int_disable [2021-11-23 03:47:11,511 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_int_disable [2021-11-23 03:47:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_rtl8180_priv [2021-11-23 03:47:11,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_rtl8180_priv [2021-11-23 03:47:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2021-11-23 03:47:11,511 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2021-11-23 03:47:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:47:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-23 03:47:11,512 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-23 03:47:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-23 03:47:11,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-23 03:47:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-23 03:47:11,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-23 03:47:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 03:47:11,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 03:47:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2021-11-23 03:47:11,513 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2021-11-23 03:47:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-23 03:47:11,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-23 03:47:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-23 03:47:11,514 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-23 03:47:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2021-11-23 03:47:11,514 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2021-11-23 03:47:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_rx [2021-11-23 03:47:11,514 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_rx [2021-11-23 03:47:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-23 03:47:11,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-23 03:47:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-23 03:47:11,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-23 03:47:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2021-11-23 03:47:11,515 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2021-11-23 03:47:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-23 03:47:11,515 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-23 03:47:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2021-11-23 03:47:11,516 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2021-11-23 03:47:11,516 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 03:47:11,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 03:47:11,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-23 03:47:11,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-23 03:47:11,516 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-23 03:47:11,516 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-23 03:47:11,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 03:47:11,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 03:47:11,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-23 03:47:11,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-23 03:47:11,517 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-23 03:47:11,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-23 03:47:11,517 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2021-11-23 03:47:11,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2021-11-23 03:47:11,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:47:11,518 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2021-11-23 03:47:11,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2021-11-23 03:47:11,518 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_three_wire_io [2021-11-23 03:47:11,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_three_wire_io [2021-11-23 03:47:11,518 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2021-11-23 03:47:11,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2021-11-23 03:47:12,950 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:47:12,954 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:47:13,432 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 03:47:23,994 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:47:25,747 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:47:25,747 INFO L301 CfgBuilder]: Removed 78 assume(true) statements. [2021-11-23 03:47:25,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:47:25 BoogieIcfgContainer [2021-11-23 03:47:25,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:47:25,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:47:25,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:47:25,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:47:25,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:47:01" (1/3) ... [2021-11-23 03:47:25,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5acf2272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:47:25, skipping insertion in model container [2021-11-23 03:47:25,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:10" (2/3) ... [2021-11-23 03:47:25,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5acf2272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:47:25, skipping insertion in model container [2021-11-23 03:47:25,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:47:25" (3/3) ... [2021-11-23 03:47:25,763 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i [2021-11-23 03:47:25,769 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:47:25,769 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-23 03:47:25,833 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:47:25,838 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:47:25,839 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-23 03:47:25,942 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) [2021-11-23 03:47:25,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 03:47:25,949 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:47:25,950 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:47:25,951 INFO L402 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)] === [2021-11-23 03:47:25,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:47:25,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2017626908, now seen corresponding path program 1 times [2021-11-23 03:47:25,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:47:25,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551243578] [2021-11-23 03:47:25,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:47:25,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:47:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:47:26,978 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:47:26,979 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:47:26,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551243578] [2021-11-23 03:47:26,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551243578] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:47:26,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:47:26,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:47:26,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964452156] [2021-11-23 03:47:26,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:47:26,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:47:26,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:47:27,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:47:27,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:47:27,035 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) [2021-11-23 03:47:30,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:47:32,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:34,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:47:34,139 INFO L93 Difference]: Finished difference Result 6768 states and 10790 transitions. [2021-11-23 03:47:34,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:47:34,141 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 [2021-11-23 03:47:34,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:47:34,212 INFO L225 Difference]: With dead ends: 6768 [2021-11-23 03:47:34,212 INFO L226 Difference]: Without dead ends: 3273 [2021-11-23 03:47:34,259 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:47:34,262 INFO L933 BasicCegarLoop]: 4670 mSDtfsCounter, 4982 mSDsluCounter, 5089 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4995 SdHoareTripleChecker+Valid, 9382 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:47:34,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4995 Valid, 9382 Invalid, 751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 749 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2021-11-23 03:47:34,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2021-11-23 03:47:34,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 3267. [2021-11-23 03:47:34,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3267 states, 1480 states have (on average 1.2351351351351352) internal successors, (1828), 1601 states have internal predecessors, (1828), 1598 states have call successors, (1598), 162 states have call predecessors, (1598), 161 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2021-11-23 03:47:34,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3267 states to 3267 states and 5022 transitions. [2021-11-23 03:47:34,917 INFO L78 Accepts]: Start accepts. Automaton has 3267 states and 5022 transitions. Word has length 47 [2021-11-23 03:47:34,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:47:34,920 INFO L470 AbstractCegarLoop]: Abstraction has 3267 states and 5022 transitions. [2021-11-23 03:47:34,920 INFO L471 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) [2021-11-23 03:47:34,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3267 states and 5022 transitions. [2021-11-23 03:47:34,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 03:47:34,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:47:34,924 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:47:34,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:47:34,925 INFO L402 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)] === [2021-11-23 03:47:34,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:47:34,930 INFO L85 PathProgramCache]: Analyzing trace with hash -790522132, now seen corresponding path program 1 times [2021-11-23 03:47:34,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:47:34,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042316929] [2021-11-23 03:47:34,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:47:34,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:47:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:47:35,399 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:47:35,399 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:47:35,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042316929] [2021-11-23 03:47:35,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042316929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:47:35,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:47:35,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:47:35,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638042980] [2021-11-23 03:47:35,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:47:35,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:47:35,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:47:35,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:47:35,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:47:35,405 INFO L87 Difference]: Start difference. First operand 3267 states and 5022 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-23 03:47:38,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:47:40,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:43,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:47:43,041 INFO L93 Difference]: Finished difference Result 3273 states and 5031 transitions. [2021-11-23 03:47:43,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:47:43,042 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 [2021-11-23 03:47:43,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:47:43,088 INFO L225 Difference]: With dead ends: 3273 [2021-11-23 03:47:43,088 INFO L226 Difference]: Without dead ends: 3271 [2021-11-23 03:47:43,093 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:47:43,094 INFO L933 BasicCegarLoop]: 4642 mSDtfsCounter, 4965 mSDsluCounter, 5044 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4973 SdHoareTripleChecker+Valid, 9311 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:47:43,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4973 Valid, 9311 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 747 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2021-11-23 03:47:43,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2021-11-23 03:47:43,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 3267. [2021-11-23 03:47:43,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3267 states, 1480 states have (on average 1.2344594594594596) internal successors, (1827), 1600 states have internal predecessors, (1827), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2021-11-23 03:47:43,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3267 states to 3267 states and 5021 transitions. [2021-11-23 03:47:43,478 INFO L78 Accepts]: Start accepts. Automaton has 3267 states and 5021 transitions. Word has length 52 [2021-11-23 03:47:43,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:47:43,479 INFO L470 AbstractCegarLoop]: Abstraction has 3267 states and 5021 transitions. [2021-11-23 03:47:43,480 INFO L471 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) [2021-11-23 03:47:43,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3267 states and 5021 transitions. [2021-11-23 03:47:43,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 03:47:43,483 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:47:43,483 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:47:43,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:47:43,484 INFO L402 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)] === [2021-11-23 03:47:43,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:47:43,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1699844791, now seen corresponding path program 1 times [2021-11-23 03:47:43,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:47:43,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512006307] [2021-11-23 03:47:43,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:47:43,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:47:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:47:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:47:44,002 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:47:44,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512006307] [2021-11-23 03:47:44,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512006307] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:47:44,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:47:44,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:47:44,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387534414] [2021-11-23 03:47:44,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:47:44,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:47:44,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:47:44,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:47:44,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:47:44,015 INFO L87 Difference]: Start difference. First operand 3267 states and 5021 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 03:47:47,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:47:49,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:50,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:47:50,862 INFO L93 Difference]: Finished difference Result 3273 states and 5035 transitions. [2021-11-23 03:47:50,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:47:50,863 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 [2021-11-23 03:47:50,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:47:50,907 INFO L225 Difference]: With dead ends: 3273 [2021-11-23 03:47:50,907 INFO L226 Difference]: Without dead ends: 3271 [2021-11-23 03:47:50,911 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:47:50,914 INFO L933 BasicCegarLoop]: 4640 mSDtfsCounter, 4949 mSDsluCounter, 5056 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4962 SdHoareTripleChecker+Valid, 9320 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:47:50,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4962 Valid, 9320 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 747 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2021-11-23 03:47:50,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2021-11-23 03:47:51,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 3265. [2021-11-23 03:47:51,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3265 states, 1479 states have (on average 1.2339418526031103) internal successors, (1825), 1598 states have internal predecessors, (1825), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2021-11-23 03:47:51,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3265 states to 3265 states and 5019 transitions. [2021-11-23 03:47:51,279 INFO L78 Accepts]: Start accepts. Automaton has 3265 states and 5019 transitions. Word has length 57 [2021-11-23 03:47:51,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:47:51,282 INFO L470 AbstractCegarLoop]: Abstraction has 3265 states and 5019 transitions. [2021-11-23 03:47:51,282 INFO L471 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) [2021-11-23 03:47:51,282 INFO L276 IsEmpty]: Start isEmpty. Operand 3265 states and 5019 transitions. [2021-11-23 03:47:51,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 03:47:51,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:47:51,289 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:47:51,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:47:51,290 INFO L402 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)] === [2021-11-23 03:47:51,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:47:51,290 INFO L85 PathProgramCache]: Analyzing trace with hash -499271093, now seen corresponding path program 1 times [2021-11-23 03:47:51,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:47:51,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150281299] [2021-11-23 03:47:51,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:47:51,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:47:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:47:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:47:51,732 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:47:51,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150281299] [2021-11-23 03:47:51,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150281299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:47:51,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:47:51,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:47:51,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7134663] [2021-11-23 03:47:51,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:47:51,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:47:51,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:47:51,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:47:51,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:47:51,735 INFO L87 Difference]: Start difference. First operand 3265 states and 5019 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 03:47:55,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:47:58,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:00,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:00,680 INFO L93 Difference]: Finished difference Result 3269 states and 5027 transitions. [2021-11-23 03:48:00,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:48:00,681 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 [2021-11-23 03:48:00,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:00,723 INFO L225 Difference]: With dead ends: 3269 [2021-11-23 03:48:00,723 INFO L226 Difference]: Without dead ends: 3267 [2021-11-23 03:48:00,728 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:48:00,731 INFO L933 BasicCegarLoop]: 4638 mSDtfsCounter, 4959 mSDsluCounter, 5040 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4967 SdHoareTripleChecker+Valid, 9303 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:00,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4967 Valid, 9303 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 746 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2021-11-23 03:48:00,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2021-11-23 03:48:01,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 3263. [2021-11-23 03:48:01,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3263 states, 1478 states have (on average 1.2334235453315292) internal successors, (1823), 1596 states have internal predecessors, (1823), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2021-11-23 03:48:01,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 5017 transitions. [2021-11-23 03:48:01,124 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 5017 transitions. Word has length 62 [2021-11-23 03:48:01,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:01,125 INFO L470 AbstractCegarLoop]: Abstraction has 3263 states and 5017 transitions. [2021-11-23 03:48:01,125 INFO L471 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) [2021-11-23 03:48:01,125 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 5017 transitions. [2021-11-23 03:48:01,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-23 03:48:01,129 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:01,129 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:48:01,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:48:01,131 INFO L402 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)] === [2021-11-23 03:48:01,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:01,131 INFO L85 PathProgramCache]: Analyzing trace with hash 348144841, now seen corresponding path program 1 times [2021-11-23 03:48:01,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:01,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261888022] [2021-11-23 03:48:01,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:01,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:01,533 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:48:01,533 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:01,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261888022] [2021-11-23 03:48:01,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261888022] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:48:01,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:48:01,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:48:01,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239811656] [2021-11-23 03:48:01,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:48:01,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:48:01,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:01,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:48:01,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:48:01,538 INFO L87 Difference]: Start difference. First operand 3263 states and 5017 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 03:48:05,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:48:08,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:09,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:09,357 INFO L93 Difference]: Finished difference Result 3267 states and 5025 transitions. [2021-11-23 03:48:09,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:48:09,358 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 [2021-11-23 03:48:09,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:09,402 INFO L225 Difference]: With dead ends: 3267 [2021-11-23 03:48:09,402 INFO L226 Difference]: Without dead ends: 3265 [2021-11-23 03:48:09,406 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:48:09,407 INFO L933 BasicCegarLoop]: 4636 mSDtfsCounter, 4956 mSDsluCounter, 5038 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4964 SdHoareTripleChecker+Valid, 9299 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:09,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4964 Valid, 9299 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 746 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2021-11-23 03:48:09,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2021-11-23 03:48:09,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 3261. [2021-11-23 03:48:09,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3261 states, 1477 states have (on average 1.2329045362220719) internal successors, (1821), 1594 states have internal predecessors, (1821), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2021-11-23 03:48:09,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 5015 transitions. [2021-11-23 03:48:09,872 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 5015 transitions. Word has length 67 [2021-11-23 03:48:09,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:09,873 INFO L470 AbstractCegarLoop]: Abstraction has 3261 states and 5015 transitions. [2021-11-23 03:48:09,873 INFO L471 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) [2021-11-23 03:48:09,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 5015 transitions. [2021-11-23 03:48:09,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 03:48:09,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:09,877 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:48:09,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:48:09,878 INFO L402 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)] === [2021-11-23 03:48:09,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:09,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1246343198, now seen corresponding path program 1 times [2021-11-23 03:48:09,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:09,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271094097] [2021-11-23 03:48:09,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:09,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:10,250 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:48:10,251 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:10,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271094097] [2021-11-23 03:48:10,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271094097] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:48:10,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:48:10,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:48:10,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200023468] [2021-11-23 03:48:10,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:48:10,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:48:10,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:10,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:48:10,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:48:10,254 INFO L87 Difference]: Start difference. First operand 3261 states and 5015 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 03:48:13,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:48:15,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:17,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:17,031 INFO L93 Difference]: Finished difference Result 3267 states and 5029 transitions. [2021-11-23 03:48:17,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:48:17,032 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 [2021-11-23 03:48:17,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:17,067 INFO L225 Difference]: With dead ends: 3267 [2021-11-23 03:48:17,067 INFO L226 Difference]: Without dead ends: 3265 [2021-11-23 03:48:17,071 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:48:17,072 INFO L933 BasicCegarLoop]: 4634 mSDtfsCounter, 4940 mSDsluCounter, 5050 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 9308 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:17,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4953 Valid, 9308 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 747 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2021-11-23 03:48:17,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2021-11-23 03:48:17,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 3259. [2021-11-23 03:48:17,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3259 states, 1476 states have (on average 1.2323848238482384) internal successors, (1819), 1592 states have internal predecessors, (1819), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2021-11-23 03:48:17,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3259 states to 3259 states and 5013 transitions. [2021-11-23 03:48:17,521 INFO L78 Accepts]: Start accepts. Automaton has 3259 states and 5013 transitions. Word has length 72 [2021-11-23 03:48:17,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:17,522 INFO L470 AbstractCegarLoop]: Abstraction has 3259 states and 5013 transitions. [2021-11-23 03:48:17,523 INFO L471 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) [2021-11-23 03:48:17,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3259 states and 5013 transitions. [2021-11-23 03:48:17,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-23 03:48:17,525 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:17,525 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:48:17,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:48:17,525 INFO L402 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)] === [2021-11-23 03:48:17,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:17,526 INFO L85 PathProgramCache]: Analyzing trace with hash -2092771624, now seen corresponding path program 1 times [2021-11-23 03:48:17,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:17,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425259303] [2021-11-23 03:48:17,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:17,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:17,896 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-23 03:48:17,896 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:17,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425259303] [2021-11-23 03:48:17,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425259303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:48:17,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:48:17,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:48:17,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884046860] [2021-11-23 03:48:17,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:48:17,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:48:17,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:17,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:48:17,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:48:17,899 INFO L87 Difference]: Start difference. First operand 3259 states and 5013 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 03:48:21,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:48:23,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:24,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:24,220 INFO L93 Difference]: Finished difference Result 6502 states and 10008 transitions. [2021-11-23 03:48:24,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:48:24,221 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 [2021-11-23 03:48:24,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:24,256 INFO L225 Difference]: With dead ends: 6502 [2021-11-23 03:48:24,256 INFO L226 Difference]: Without dead ends: 3261 [2021-11-23 03:48:24,290 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:48:24,291 INFO L933 BasicCegarLoop]: 4630 mSDtfsCounter, 4951 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4962 SdHoareTripleChecker+Valid, 4670 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:24,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4962 Valid, 4670 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 378 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2021-11-23 03:48:24,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3261 states. [2021-11-23 03:48:24,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3261 to 3255. [2021-11-23 03:48:24,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3255 states, 1473 states have (on average 1.231500339443313) internal successors, (1814), 1588 states have internal predecessors, (1814), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2021-11-23 03:48:24,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 5008 transitions. [2021-11-23 03:48:24,705 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 5008 transitions. Word has length 89 [2021-11-23 03:48:24,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:24,707 INFO L470 AbstractCegarLoop]: Abstraction has 3255 states and 5008 transitions. [2021-11-23 03:48:24,707 INFO L471 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) [2021-11-23 03:48:24,707 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 5008 transitions. [2021-11-23 03:48:24,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 03:48:24,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:24,716 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:48:24,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 03:48:24,718 INFO L402 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)] === [2021-11-23 03:48:24,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:24,719 INFO L85 PathProgramCache]: Analyzing trace with hash -504718071, now seen corresponding path program 1 times [2021-11-23 03:48:24,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:24,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283209889] [2021-11-23 03:48:24,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:24,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:48:25,076 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:25,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283209889] [2021-11-23 03:48:25,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283209889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:48:25,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:48:25,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:48:25,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033003410] [2021-11-23 03:48:25,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:48:25,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:48:25,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:25,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:48:25,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:48:25,080 INFO L87 Difference]: Start difference. First operand 3255 states and 5008 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 03:48:28,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:48:31,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:32,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:32,181 INFO L93 Difference]: Finished difference Result 3259 states and 5016 transitions. [2021-11-23 03:48:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:48:32,182 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 [2021-11-23 03:48:32,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:32,215 INFO L225 Difference]: With dead ends: 3259 [2021-11-23 03:48:32,216 INFO L226 Difference]: Without dead ends: 3257 [2021-11-23 03:48:32,219 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:48:32,220 INFO L933 BasicCegarLoop]: 4627 mSDtfsCounter, 4945 mSDsluCounter, 5029 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 9281 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:32,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4953 Valid, 9281 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 746 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2021-11-23 03:48:32,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2021-11-23 03:48:32,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 3253. [2021-11-23 03:48:32,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 1472 states have (on average 1.2309782608695652) internal successors, (1812), 1586 states have internal predecessors, (1812), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2021-11-23 03:48:32,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 5006 transitions. [2021-11-23 03:48:32,575 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 5006 transitions. Word has length 77 [2021-11-23 03:48:32,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:32,576 INFO L470 AbstractCegarLoop]: Abstraction has 3253 states and 5006 transitions. [2021-11-23 03:48:32,576 INFO L471 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) [2021-11-23 03:48:32,577 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 5006 transitions. [2021-11-23 03:48:32,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 03:48:32,579 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:32,579 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:48:32,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 03:48:32,580 INFO L402 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)] === [2021-11-23 03:48:32,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:32,580 INFO L85 PathProgramCache]: Analyzing trace with hash 163880276, now seen corresponding path program 1 times [2021-11-23 03:48:32,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:32,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874169095] [2021-11-23 03:48:32,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:32,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:32,979 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-23 03:48:32,980 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:32,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874169095] [2021-11-23 03:48:32,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874169095] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:48:32,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775693003] [2021-11-23 03:48:32,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:32,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:48:32,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:48:32,989 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:48:33,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:48:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:34,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 4394 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 03:48:34,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:48:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-23 03:48:34,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:48:34,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775693003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:48:34,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:48:34,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-23 03:48:34,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939921514] [2021-11-23 03:48:34,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:48:34,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:48:34,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:34,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:48:34,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:48:34,953 INFO L87 Difference]: Start difference. First operand 3253 states and 5006 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 03:48:37,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:48:39,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:39,848 INFO L93 Difference]: Finished difference Result 6488 states and 9988 transitions. [2021-11-23 03:48:39,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:48:39,849 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 [2021-11-23 03:48:39,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:39,872 INFO L225 Difference]: With dead ends: 6488 [2021-11-23 03:48:39,873 INFO L226 Difference]: Without dead ends: 3253 [2021-11-23 03:48:39,893 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:48:39,894 INFO L933 BasicCegarLoop]: 4623 mSDtfsCounter, 4951 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4957 SdHoareTripleChecker+Valid, 4650 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:39,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4957 Valid, 4650 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-11-23 03:48:39,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3253 states. [2021-11-23 03:48:40,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3253 to 3249. [2021-11-23 03:48:40,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3249 states, 1469 states have (on average 1.2300884955752212) internal successors, (1807), 1582 states have internal predecessors, (1807), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2021-11-23 03:48:40,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 5001 transitions. [2021-11-23 03:48:40,307 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 5001 transitions. Word has length 94 [2021-11-23 03:48:40,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:40,308 INFO L470 AbstractCegarLoop]: Abstraction has 3249 states and 5001 transitions. [2021-11-23 03:48:40,309 INFO L471 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) [2021-11-23 03:48:40,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 5001 transitions. [2021-11-23 03:48:40,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-23 03:48:40,313 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:40,313 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:48:40,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:48:40,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-23 03:48:40,536 INFO L402 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)] === [2021-11-23 03:48:40,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:40,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2059130957, now seen corresponding path program 1 times [2021-11-23 03:48:40,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:40,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451723863] [2021-11-23 03:48:40,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:40,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:40,873 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:48:40,873 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:40,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451723863] [2021-11-23 03:48:40,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451723863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:48:40,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:48:40,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:48:40,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390692950] [2021-11-23 03:48:40,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:48:40,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:48:40,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:40,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:48:40,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:48:40,877 INFO L87 Difference]: Start difference. First operand 3249 states and 5001 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 03:48:44,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:48:46,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:47,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:47,986 INFO L93 Difference]: Finished difference Result 3255 states and 5015 transitions. [2021-11-23 03:48:47,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:48:47,986 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 [2021-11-23 03:48:47,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:48,012 INFO L225 Difference]: With dead ends: 3255 [2021-11-23 03:48:48,012 INFO L226 Difference]: Without dead ends: 3253 [2021-11-23 03:48:48,016 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:48:48,017 INFO L933 BasicCegarLoop]: 4620 mSDtfsCounter, 4928 mSDsluCounter, 5032 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4941 SdHoareTripleChecker+Valid, 9276 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:48,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4941 Valid, 9276 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 747 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2021-11-23 03:48:48,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3253 states. [2021-11-23 03:48:48,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3253 to 3247. [2021-11-23 03:48:48,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3247 states, 1468 states have (on average 1.2295640326975477) internal successors, (1805), 1580 states have internal predecessors, (1805), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2021-11-23 03:48:48,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 4999 transitions. [2021-11-23 03:48:48,449 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 4999 transitions. Word has length 82 [2021-11-23 03:48:48,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:48,450 INFO L470 AbstractCegarLoop]: Abstraction has 3247 states and 4999 transitions. [2021-11-23 03:48:48,450 INFO L471 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) [2021-11-23 03:48:48,450 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 4999 transitions. [2021-11-23 03:48:48,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 03:48:48,452 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:48,453 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:48:48,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 03:48:48,453 INFO L402 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)] === [2021-11-23 03:48:48,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:48,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1155240470, now seen corresponding path program 1 times [2021-11-23 03:48:48,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:48,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26716278] [2021-11-23 03:48:48,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:48,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:48,777 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:48:48,777 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:48,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26716278] [2021-11-23 03:48:48,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26716278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:48:48,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:48:48,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:48:48,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987674475] [2021-11-23 03:48:48,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:48:48,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:48:48,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:48,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:48:48,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:48:48,781 INFO L87 Difference]: Start difference. First operand 3247 states and 4999 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 03:48:52,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:48:54,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:55,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:55,725 INFO L93 Difference]: Finished difference Result 3253 states and 5013 transitions. [2021-11-23 03:48:55,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:48:55,725 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 [2021-11-23 03:48:55,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:55,749 INFO L225 Difference]: With dead ends: 3253 [2021-11-23 03:48:55,749 INFO L226 Difference]: Without dead ends: 3251 [2021-11-23 03:48:55,753 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:48:55,754 INFO L933 BasicCegarLoop]: 4618 mSDtfsCounter, 4920 mSDsluCounter, 5034 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4933 SdHoareTripleChecker+Valid, 9276 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:55,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4933 Valid, 9276 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 747 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2021-11-23 03:48:55,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3251 states. [2021-11-23 03:48:56,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3251 to 3245. [2021-11-23 03:48:56,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3245 states, 1467 states have (on average 1.229038854805726) internal successors, (1803), 1578 states have internal predecessors, (1803), 1598 states have call successors, (1598), 163 states have call predecessors, (1598), 162 states have return successors, (1596), 1552 states have call predecessors, (1596), 1596 states have call successors, (1596) [2021-11-23 03:48:56,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3245 states to 3245 states and 4997 transitions. [2021-11-23 03:48:56,239 INFO L78 Accepts]: Start accepts. Automaton has 3245 states and 4997 transitions. Word has length 84 [2021-11-23 03:48:56,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:56,242 INFO L470 AbstractCegarLoop]: Abstraction has 3245 states and 4997 transitions. [2021-11-23 03:48:56,243 INFO L471 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) [2021-11-23 03:48:56,243 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4997 transitions. [2021-11-23 03:48:56,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-23 03:48:56,245 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:56,245 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:48:56,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 03:48:56,246 INFO L402 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)] === [2021-11-23 03:48:56,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:56,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1196819850, now seen corresponding path program 1 times [2021-11-23 03:48:56,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:56,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950656140] [2021-11-23 03:48:56,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:56,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:56,536 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:48:56,536 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:56,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950656140] [2021-11-23 03:48:56,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950656140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:48:56,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:48:56,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:48:56,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273412096] [2021-11-23 03:48:56,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:48:56,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:48:56,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:56,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:48:56,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:48:56,540 INFO L87 Difference]: Start difference. First operand 3245 states and 4997 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 03:49:00,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:49:02,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:03,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:49:03,637 INFO L93 Difference]: Finished difference Result 3251 states and 5011 transitions. [2021-11-23 03:49:03,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:49:03,642 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 [2021-11-23 03:49:03,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:49:03,666 INFO L225 Difference]: With dead ends: 3251 [2021-11-23 03:49:03,666 INFO L226 Difference]: Without dead ends: 3249 [2021-11-23 03:49:03,670 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:49:03,672 INFO L933 BasicCegarLoop]: 4616 mSDtfsCounter, 4919 mSDsluCounter, 5032 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4932 SdHoareTripleChecker+Valid, 9272 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:49:03,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4932 Valid, 9272 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 747 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2021-11-23 03:49:03,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3249 states. [2021-11-23 03:49:04,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3249 to 3243. [2021-11-23 03:49:04,076 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) [2021-11-23 03:49:04,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4995 transitions. [2021-11-23 03:49:04,102 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4995 transitions. Word has length 89 [2021-11-23 03:49:04,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:49:04,103 INFO L470 AbstractCegarLoop]: Abstraction has 3243 states and 4995 transitions. [2021-11-23 03:49:04,103 INFO L471 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) [2021-11-23 03:49:04,104 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4995 transitions. [2021-11-23 03:49:04,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 03:49:04,106 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:49:04,106 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:49:04,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 03:49:04,107 INFO L402 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)] === [2021-11-23 03:49:04,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:49:04,107 INFO L85 PathProgramCache]: Analyzing trace with hash -395774035, now seen corresponding path program 1 times [2021-11-23 03:49:04,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:49:04,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65153158] [2021-11-23 03:49:04,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:49:04,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:49:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:49:04,487 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:49:04,488 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:49:04,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65153158] [2021-11-23 03:49:04,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65153158] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:49:04,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:49:04,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:49:04,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505784720] [2021-11-23 03:49:04,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:49:04,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:49:04,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:49:04,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:49:04,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:49:04,491 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) [2021-11-23 03:49:07,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:49:10,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:11,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:49:11,845 INFO L93 Difference]: Finished difference Result 3249 states and 5009 transitions. [2021-11-23 03:49:11,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:49:11,845 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 [2021-11-23 03:49:11,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:49:11,868 INFO L225 Difference]: With dead ends: 3249 [2021-11-23 03:49:11,869 INFO L226 Difference]: Without dead ends: 3247 [2021-11-23 03:49:11,873 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:49:11,874 INFO L933 BasicCegarLoop]: 4614 mSDtfsCounter, 4916 mSDsluCounter, 5030 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4929 SdHoareTripleChecker+Valid, 9268 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:49:11,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4929 Valid, 9268 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 747 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-23 03:49:11,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2021-11-23 03:49:12,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 3241. [2021-11-23 03:49:12,296 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) [2021-11-23 03:49:12,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 4993 transitions. [2021-11-23 03:49:12,321 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 4993 transitions. Word has length 94 [2021-11-23 03:49:12,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:49:12,322 INFO L470 AbstractCegarLoop]: Abstraction has 3241 states and 4993 transitions. [2021-11-23 03:49:12,323 INFO L471 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) [2021-11-23 03:49:12,323 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 4993 transitions. [2021-11-23 03:49:12,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-23 03:49:12,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:49:12,326 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:49:12,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 03:49:12,326 INFO L402 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)] === [2021-11-23 03:49:12,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:49:12,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1471103178, now seen corresponding path program 1 times [2021-11-23 03:49:12,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:49:12,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703973870] [2021-11-23 03:49:12,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:49:12,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:49:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:49:12,616 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:49:12,616 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:49:12,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703973870] [2021-11-23 03:49:12,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703973870] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:49:12,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:49:12,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:49:12,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707498121] [2021-11-23 03:49:12,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:49:12,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:49:12,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:49:12,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:49:12,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:49:12,620 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) [2021-11-23 03:49:15,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:49:18,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:19,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:49:19,367 INFO L93 Difference]: Finished difference Result 3247 states and 5007 transitions. [2021-11-23 03:49:19,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:49:19,368 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 [2021-11-23 03:49:19,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:49:19,389 INFO L225 Difference]: With dead ends: 3247 [2021-11-23 03:49:19,389 INFO L226 Difference]: Without dead ends: 3245 [2021-11-23 03:49:19,393 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:49:19,394 INFO L933 BasicCegarLoop]: 4612 mSDtfsCounter, 4913 mSDsluCounter, 5028 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4926 SdHoareTripleChecker+Valid, 9264 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:49:19,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4926 Valid, 9264 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 747 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2021-11-23 03:49:19,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2021-11-23 03:49:19,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3239. [2021-11-23 03:49:19,821 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) [2021-11-23 03:49:19,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3239 states to 3239 states and 4991 transitions. [2021-11-23 03:49:19,846 INFO L78 Accepts]: Start accepts. Automaton has 3239 states and 4991 transitions. Word has length 99 [2021-11-23 03:49:19,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:49:19,847 INFO L470 AbstractCegarLoop]: Abstraction has 3239 states and 4991 transitions. [2021-11-23 03:49:19,847 INFO L471 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) [2021-11-23 03:49:19,848 INFO L276 IsEmpty]: Start isEmpty. Operand 3239 states and 4991 transitions. [2021-11-23 03:49:19,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-23 03:49:19,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:49:19,850 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:49:19,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 03:49:19,851 INFO L402 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)] === [2021-11-23 03:49:19,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:49:19,852 INFO L85 PathProgramCache]: Analyzing trace with hash -473610336, now seen corresponding path program 1 times [2021-11-23 03:49:19,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:49:19,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390690505] [2021-11-23 03:49:19,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:49:19,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:49:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:49:20,201 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:49:20,202 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:49:20,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390690505] [2021-11-23 03:49:20,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390690505] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:49:20,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:49:20,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:49:20,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378767703] [2021-11-23 03:49:20,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:49:20,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:49:20,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:49:20,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:49:20,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:49:20,207 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) [2021-11-23 03:49:23,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:49:25,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:27,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:28,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:49:28,691 INFO L93 Difference]: Finished difference Result 3243 states and 4999 transitions. [2021-11-23 03:49:28,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:49:28,692 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 [2021-11-23 03:49:28,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:49:28,708 INFO L225 Difference]: With dead ends: 3243 [2021-11-23 03:49:28,709 INFO L226 Difference]: Without dead ends: 3241 [2021-11-23 03:49:28,712 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:49:28,713 INFO L933 BasicCegarLoop]: 4610 mSDtfsCounter, 4923 mSDsluCounter, 5012 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4931 SdHoareTripleChecker+Valid, 9247 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:49:28,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4931 Valid, 9247 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 747 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-11-23 03:49:28,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3241 states. [2021-11-23 03:49:29,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3241 to 3237. [2021-11-23 03:49:29,141 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) [2021-11-23 03:49:29,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 4989 transitions. [2021-11-23 03:49:29,168 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 4989 transitions. Word has length 104 [2021-11-23 03:49:29,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:49:29,168 INFO L470 AbstractCegarLoop]: Abstraction has 3237 states and 4989 transitions. [2021-11-23 03:49:29,169 INFO L471 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) [2021-11-23 03:49:29,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 4989 transitions. [2021-11-23 03:49:29,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-23 03:49:29,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:49:29,181 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:49:29,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 03:49:29,181 INFO L402 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)] === [2021-11-23 03:49:29,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:49:29,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1454225211, now seen corresponding path program 1 times [2021-11-23 03:49:29,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:49:29,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152898045] [2021-11-23 03:49:29,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:49:29,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:49:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:49:29,484 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:49:29,485 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:49:29,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152898045] [2021-11-23 03:49:29,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152898045] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:49:29,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:49:29,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:49:29,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796088589] [2021-11-23 03:49:29,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:49:29,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:49:29,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:49:29,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:49:29,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:49:29,488 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) [2021-11-23 03:49:32,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:49:35,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:37,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:49:37,147 INFO L93 Difference]: Finished difference Result 3241 states and 4997 transitions. [2021-11-23 03:49:37,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:49:37,148 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 [2021-11-23 03:49:37,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:49:37,165 INFO L225 Difference]: With dead ends: 3241 [2021-11-23 03:49:37,165 INFO L226 Difference]: Without dead ends: 3239 [2021-11-23 03:49:37,168 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:49:37,168 INFO L933 BasicCegarLoop]: 4608 mSDtfsCounter, 4920 mSDsluCounter, 5010 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4928 SdHoareTripleChecker+Valid, 9243 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:49:37,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4928 Valid, 9243 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 747 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2021-11-23 03:49:37,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3239 states. [2021-11-23 03:49:37,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3239 to 3235. [2021-11-23 03:49:37,593 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) [2021-11-23 03:49:37,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3235 states to 3235 states and 4987 transitions. [2021-11-23 03:49:37,618 INFO L78 Accepts]: Start accepts. Automaton has 3235 states and 4987 transitions. Word has length 109 [2021-11-23 03:49:37,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:49:37,620 INFO L470 AbstractCegarLoop]: Abstraction has 3235 states and 4987 transitions. [2021-11-23 03:49:37,621 INFO L471 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) [2021-11-23 03:49:37,621 INFO L276 IsEmpty]: Start isEmpty. Operand 3235 states and 4987 transitions. [2021-11-23 03:49:37,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-23 03:49:37,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:49:37,626 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:49:37,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 03:49:37,626 INFO L402 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)] === [2021-11-23 03:49:37,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:49:37,627 INFO L85 PathProgramCache]: Analyzing trace with hash 440053965, now seen corresponding path program 1 times [2021-11-23 03:49:37,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:49:37,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139117545] [2021-11-23 03:49:37,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:49:37,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:49:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:49:38,012 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2021-11-23 03:49:38,012 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:49:38,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139117545] [2021-11-23 03:49:38,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139117545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:49:38,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:49:38,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:49:38,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821785918] [2021-11-23 03:49:38,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:49:38,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:49:38,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:49:38,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:49:38,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:49:38,017 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) [2021-11-23 03:49:41,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:49:44,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:46,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:49,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:49:49,683 INFO L93 Difference]: Finished difference Result 5457 states and 8498 transitions. [2021-11-23 03:49:49,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:49:49,684 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 [2021-11-23 03:49:49,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:49:49,734 INFO L225 Difference]: With dead ends: 5457 [2021-11-23 03:49:49,734 INFO L226 Difference]: Without dead ends: 5455 [2021-11-23 03:49:49,739 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:49:49,740 INFO L933 BasicCegarLoop]: 5862 mSDtfsCounter, 4863 mSDsluCounter, 16031 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4870 SdHoareTripleChecker+Valid, 20973 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:49:49,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4870 Valid, 20973 Invalid, 1316 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1312 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2021-11-23 03:49:49,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5455 states. [2021-11-23 03:49:50,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5455 to 5434. [2021-11-23 03:49:50,689 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) [2021-11-23 03:49:50,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 8473 transitions. [2021-11-23 03:49:50,728 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 8473 transitions. Word has length 131 [2021-11-23 03:49:50,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:49:50,729 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 8473 transitions. [2021-11-23 03:49:50,729 INFO L471 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) [2021-11-23 03:49:50,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 8473 transitions. [2021-11-23 03:49:50,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-23 03:49:50,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:49:50,733 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:49:50,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 03:49:50,733 INFO L402 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)] === [2021-11-23 03:49:50,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:49:50,735 INFO L85 PathProgramCache]: Analyzing trace with hash 327756540, now seen corresponding path program 1 times [2021-11-23 03:49:50,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:49:50,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545716430] [2021-11-23 03:49:50,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:49:50,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:49:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:49:51,052 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:49:51,052 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:49:51,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545716430] [2021-11-23 03:49:51,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545716430] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:49:51,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:49:51,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:49:51,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934154515] [2021-11-23 03:49:51,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:49:51,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:49:51,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:49:51,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:49:51,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:49:51,056 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) [2021-11-23 03:49:54,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:49:57,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:59,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:49:59,074 INFO L93 Difference]: Finished difference Result 5438 states and 8476 transitions. [2021-11-23 03:49:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:49:59,075 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 [2021-11-23 03:49:59,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:49:59,116 INFO L225 Difference]: With dead ends: 5438 [2021-11-23 03:49:59,117 INFO L226 Difference]: Without dead ends: 5436 [2021-11-23 03:49:59,124 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:49:59,124 INFO L933 BasicCegarLoop]: 4606 mSDtfsCounter, 4917 mSDsluCounter, 5008 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4925 SdHoareTripleChecker+Valid, 9239 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:49:59,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4925 Valid, 9239 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 746 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2021-11-23 03:49:59,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5436 states. [2021-11-23 03:49:59,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5436 to 5434. [2021-11-23 03:49:59,990 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) [2021-11-23 03:50:00,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 8473 transitions. [2021-11-23 03:50:00,020 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 8473 transitions. Word has length 114 [2021-11-23 03:50:00,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:50:00,020 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 8473 transitions. [2021-11-23 03:50:00,020 INFO L471 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) [2021-11-23 03:50:00,021 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 8473 transitions. [2021-11-23 03:50:00,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-23 03:50:00,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:50:00,025 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:50:00,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-23 03:50:00,025 INFO L402 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)] === [2021-11-23 03:50:00,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:50:00,026 INFO L85 PathProgramCache]: Analyzing trace with hash -948211892, now seen corresponding path program 1 times [2021-11-23 03:50:00,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:50:00,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584862303] [2021-11-23 03:50:00,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:50:00,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:50:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:50:00,333 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:50:00,333 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:50:00,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584862303] [2021-11-23 03:50:00,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584862303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:50:00,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:50:00,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:50:00,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373391712] [2021-11-23 03:50:00,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:50:00,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:50:00,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:50:00,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:50:00,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:50:00,338 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) [2021-11-23 03:50:03,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:50:06,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:07,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:50:07,560 INFO L93 Difference]: Finished difference Result 5438 states and 8480 transitions. [2021-11-23 03:50:07,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:50:07,561 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 [2021-11-23 03:50:07,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:50:07,603 INFO L225 Difference]: With dead ends: 5438 [2021-11-23 03:50:07,604 INFO L226 Difference]: Without dead ends: 5436 [2021-11-23 03:50:07,610 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:50:07,611 INFO L933 BasicCegarLoop]: 4604 mSDtfsCounter, 4901 mSDsluCounter, 5020 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4914 SdHoareTripleChecker+Valid, 9248 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:50:07,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4914 Valid, 9248 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 747 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2021-11-23 03:50:07,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5436 states. [2021-11-23 03:50:08,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5436 to 5432. [2021-11-23 03:50:08,512 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) [2021-11-23 03:50:08,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 8471 transitions. [2021-11-23 03:50:08,541 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 8471 transitions. Word has length 119 [2021-11-23 03:50:08,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:50:08,542 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 8471 transitions. [2021-11-23 03:50:08,542 INFO L471 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) [2021-11-23 03:50:08,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 8471 transitions. [2021-11-23 03:50:08,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-23 03:50:08,546 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:50:08,546 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:50:08,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-23 03:50:08,546 INFO L402 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)] === [2021-11-23 03:50:08,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:50:08,547 INFO L85 PathProgramCache]: Analyzing trace with hash 410155134, now seen corresponding path program 1 times [2021-11-23 03:50:08,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:50:08,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261316146] [2021-11-23 03:50:08,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:50:08,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:50:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:50:08,823 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2021-11-23 03:50:08,823 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:50:08,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261316146] [2021-11-23 03:50:08,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261316146] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:50:08,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:50:08,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:50:08,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113871127] [2021-11-23 03:50:08,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:50:08,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:50:08,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:50:08,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:50:08,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:50:08,826 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) [2021-11-23 03:50:12,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:50:15,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:19,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:50:19,207 INFO L93 Difference]: Finished difference Result 5453 states and 8494 transitions. [2021-11-23 03:50:19,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:50:19,208 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 [2021-11-23 03:50:19,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:50:19,236 INFO L225 Difference]: With dead ends: 5453 [2021-11-23 03:50:19,236 INFO L226 Difference]: Without dead ends: 5451 [2021-11-23 03:50:19,240 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:50:19,241 INFO L933 BasicCegarLoop]: 7887 mSDtfsCounter, 3542 mSDsluCounter, 13329 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3543 SdHoareTripleChecker+Valid, 20321 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:50:19,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3543 Valid, 20321 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1434 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2021-11-23 03:50:19,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5451 states. [2021-11-23 03:50:20,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5451 to 5440. [2021-11-23 03:50:20,280 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) [2021-11-23 03:50:20,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 8485 transitions. [2021-11-23 03:50:20,312 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 8485 transitions. Word has length 138 [2021-11-23 03:50:20,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:50:20,312 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 8485 transitions. [2021-11-23 03:50:20,312 INFO L471 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) [2021-11-23 03:50:20,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 8485 transitions. [2021-11-23 03:50:20,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-23 03:50:20,316 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:50:20,316 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:50:20,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-23 03:50:20,317 INFO L402 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)] === [2021-11-23 03:50:20,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:50:20,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1885007451, now seen corresponding path program 1 times [2021-11-23 03:50:20,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:50:20,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564607267] [2021-11-23 03:50:20,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:50:20,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:50:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:50:20,639 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:50:20,640 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:50:20,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564607267] [2021-11-23 03:50:20,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564607267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:50:20,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:50:20,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:50:20,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124272448] [2021-11-23 03:50:20,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:50:20,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:50:20,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:50:20,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:50:20,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:50:20,643 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) [2021-11-23 03:50:24,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:50:26,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:28,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:50:28,919 INFO L93 Difference]: Finished difference Result 5453 states and 8498 transitions. [2021-11-23 03:50:28,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:50:28,919 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 [2021-11-23 03:50:28,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:50:28,939 INFO L225 Difference]: With dead ends: 5453 [2021-11-23 03:50:28,940 INFO L226 Difference]: Without dead ends: 5451 [2021-11-23 03:50:28,942 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:50:28,943 INFO L933 BasicCegarLoop]: 5856 mSDtfsCounter, 4852 mSDsluCounter, 9798 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4865 SdHoareTripleChecker+Valid, 15112 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:50:28,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4865 Valid, 15112 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 923 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2021-11-23 03:50:28,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5451 states. [2021-11-23 03:50:29,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5451 to 5438. [2021-11-23 03:50:29,619 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) [2021-11-23 03:50:29,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 8483 transitions. [2021-11-23 03:50:29,648 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 8483 transitions. Word has length 124 [2021-11-23 03:50:29,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:50:29,649 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 8483 transitions. [2021-11-23 03:50:29,649 INFO L471 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) [2021-11-23 03:50:29,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 8483 transitions. [2021-11-23 03:50:29,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-23 03:50:29,652 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:50:29,653 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:50:29,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-23 03:50:29,653 INFO L402 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)] === [2021-11-23 03:50:29,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:50:29,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1651400156, now seen corresponding path program 1 times [2021-11-23 03:50:29,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:50:29,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054029719] [2021-11-23 03:50:29,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:50:29,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:50:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:50:30,034 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:50:30,034 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:50:30,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054029719] [2021-11-23 03:50:30,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054029719] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:50:30,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:50:30,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:50:30,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027260186] [2021-11-23 03:50:30,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:50:30,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:50:30,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:50:30,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:50:30,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:50:30,039 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) [2021-11-23 03:50:33,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:50:35,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:37,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:39,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:50:39,298 INFO L93 Difference]: Finished difference Result 5440 states and 8484 transitions. [2021-11-23 03:50:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:50:39,301 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 [2021-11-23 03:50:39,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:50:39,327 INFO L225 Difference]: With dead ends: 5440 [2021-11-23 03:50:39,327 INFO L226 Difference]: Without dead ends: 5438 [2021-11-23 03:50:39,332 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:50:39,332 INFO L933 BasicCegarLoop]: 4600 mSDtfsCounter, 4908 mSDsluCounter, 5002 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4916 SdHoareTripleChecker+Valid, 9227 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:50:39,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4916 Valid, 9227 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 746 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2021-11-23 03:50:39,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5438 states. [2021-11-23 03:50:39,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5438 to 5436. [2021-11-23 03:50:39,983 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) [2021-11-23 03:50:40,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 8481 transitions. [2021-11-23 03:50:40,008 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 8481 transitions. Word has length 129 [2021-11-23 03:50:40,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:50:40,009 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 8481 transitions. [2021-11-23 03:50:40,009 INFO L471 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) [2021-11-23 03:50:40,010 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 8481 transitions. [2021-11-23 03:50:40,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-23 03:50:40,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:50:40,014 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:50:40,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-23 03:50:40,014 INFO L402 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)] === [2021-11-23 03:50:40,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:50:40,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1683594942, now seen corresponding path program 1 times [2021-11-23 03:50:40,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:50:40,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121015983] [2021-11-23 03:50:40,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:50:40,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:50:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:50:40,276 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:50:40,276 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:50:40,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121015983] [2021-11-23 03:50:40,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121015983] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:50:40,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:50:40,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:50:40,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536046118] [2021-11-23 03:50:40,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:50:40,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:50:40,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:50:40,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:50:40,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:50:40,279 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) [2021-11-23 03:50:43,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:50:46,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:47,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:50:47,290 INFO L93 Difference]: Finished difference Result 5440 states and 8488 transitions. [2021-11-23 03:50:47,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:50:47,291 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 [2021-11-23 03:50:47,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:50:47,315 INFO L225 Difference]: With dead ends: 5440 [2021-11-23 03:50:47,315 INFO L226 Difference]: Without dead ends: 5438 [2021-11-23 03:50:47,320 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:50:47,320 INFO L933 BasicCegarLoop]: 4598 mSDtfsCounter, 4892 mSDsluCounter, 5014 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4905 SdHoareTripleChecker+Valid, 9236 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:50:47,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4905 Valid, 9236 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 747 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2021-11-23 03:50:47,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5438 states. [2021-11-23 03:50:47,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5438 to 5434. [2021-11-23 03:50:47,987 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) [2021-11-23 03:50:48,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 8479 transitions. [2021-11-23 03:50:48,012 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 8479 transitions. Word has length 134 [2021-11-23 03:50:48,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:50:48,013 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 8479 transitions. [2021-11-23 03:50:48,014 INFO L471 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) [2021-11-23 03:50:48,014 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 8479 transitions. [2021-11-23 03:50:48,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-23 03:50:48,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:50:48,018 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:50:48,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-23 03:50:48,019 INFO L402 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)] === [2021-11-23 03:50:48,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:50:48,019 INFO L85 PathProgramCache]: Analyzing trace with hash 2073384266, now seen corresponding path program 1 times [2021-11-23 03:50:48,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:50:48,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713987700] [2021-11-23 03:50:48,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:50:48,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:50:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:50:48,512 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2021-11-23 03:50:48,513 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:50:48,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713987700] [2021-11-23 03:50:48,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713987700] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:50:48,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739209677] [2021-11-23 03:50:48,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:50:48,514 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:50:48,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:50:48,518 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:50:48,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:50:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:50:50,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 4854 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-23 03:50:50,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:50:50,911 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-23 03:50:50,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:50:50,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739209677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:50:50,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:50:50,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2021-11-23 03:50:50,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340200520] [2021-11-23 03:50:50,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:50:50,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 03:50:50,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:50:50,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 03:50:50,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2021-11-23 03:50:50,914 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) [2021-11-23 03:51:01,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:51:04,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:06,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:13,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:51:13,494 INFO L93 Difference]: Finished difference Result 12182 states and 19137 transitions. [2021-11-23 03:51:13,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 03:51:13,495 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 [2021-11-23 03:51:13,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:51:13,533 INFO L225 Difference]: With dead ends: 12182 [2021-11-23 03:51:13,534 INFO L226 Difference]: Without dead ends: 6765 [2021-11-23 03:51:13,580 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:51:13,581 INFO L933 BasicCegarLoop]: 5748 mSDtfsCounter, 1506 mSDsluCounter, 59783 mSDsCounter, 0 mSdLazyCounter, 6083 mSolverCounterSat, 1044 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1790 SdHoareTripleChecker+Valid, 60879 SdHoareTripleChecker+Invalid, 7129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1044 IncrementalHoareTripleChecker+Valid, 6083 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:51:13,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1790 Valid, 60879 Invalid, 7129 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1044 Valid, 6083 Invalid, 2 Unknown, 0 Unchecked, 21.3s Time] [2021-11-23 03:51:13,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6765 states. [2021-11-23 03:51:14,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6765 to 5446. [2021-11-23 03:51:14,599 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) [2021-11-23 03:51:14,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5446 states to 5446 states and 8495 transitions. [2021-11-23 03:51:14,647 INFO L78 Accepts]: Start accepts. Automaton has 5446 states and 8495 transitions. Word has length 166 [2021-11-23 03:51:14,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:51:14,647 INFO L470 AbstractCegarLoop]: Abstraction has 5446 states and 8495 transitions. [2021-11-23 03:51:14,648 INFO L471 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) [2021-11-23 03:51:14,648 INFO L276 IsEmpty]: Start isEmpty. Operand 5446 states and 8495 transitions. [2021-11-23 03:51:14,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-23 03:51:14,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:51:14,651 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:51:14,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:51:14,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:51:14,865 INFO L402 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)] === [2021-11-23 03:51:14,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:51:14,866 INFO L85 PathProgramCache]: Analyzing trace with hash 348421454, now seen corresponding path program 1 times [2021-11-23 03:51:14,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:51:14,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498763569] [2021-11-23 03:51:14,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:51:14,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:51:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:51:15,151 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:51:15,151 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:51:15,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498763569] [2021-11-23 03:51:15,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498763569] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:51:15,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:51:15,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:51:15,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265079488] [2021-11-23 03:51:15,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:51:15,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:51:15,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:51:15,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:51:15,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:51:15,154 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) [2021-11-23 03:51:18,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:51:20,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:21,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:51:21,962 INFO L93 Difference]: Finished difference Result 5448 states and 8496 transitions. [2021-11-23 03:51:21,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:51:21,963 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 [2021-11-23 03:51:21,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:51:21,983 INFO L225 Difference]: With dead ends: 5448 [2021-11-23 03:51:21,984 INFO L226 Difference]: Without dead ends: 5446 [2021-11-23 03:51:21,986 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:51:21,987 INFO L933 BasicCegarLoop]: 4596 mSDtfsCounter, 4902 mSDsluCounter, 4998 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4910 SdHoareTripleChecker+Valid, 9219 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:51:21,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4910 Valid, 9219 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 747 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2021-11-23 03:51:21,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5446 states. [2021-11-23 03:51:22,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5446 to 5444. [2021-11-23 03:51:22,719 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) [2021-11-23 03:51:22,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 8493 transitions. [2021-11-23 03:51:22,763 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 8493 transitions. Word has length 139 [2021-11-23 03:51:22,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:51:22,764 INFO L470 AbstractCegarLoop]: Abstraction has 5444 states and 8493 transitions. [2021-11-23 03:51:22,764 INFO L471 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) [2021-11-23 03:51:22,764 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 8493 transitions. [2021-11-23 03:51:22,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-23 03:51:22,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:51:22,768 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:51:22,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-23 03:51:22,768 INFO L402 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)] === [2021-11-23 03:51:22,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:51:22,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1635650907, now seen corresponding path program 1 times [2021-11-23 03:51:22,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:51:22,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546619608] [2021-11-23 03:51:22,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:51:22,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:51:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:51:23,163 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:51:23,163 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:51:23,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546619608] [2021-11-23 03:51:23,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546619608] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:51:23,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:51:23,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:51:23,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589933718] [2021-11-23 03:51:23,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:51:23,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:51:23,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:51:23,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:51:23,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:51:23,167 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) [2021-11-23 03:51:26,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:51:29,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:31,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:51:31,239 INFO L93 Difference]: Finished difference Result 5446 states and 8494 transitions. [2021-11-23 03:51:31,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:51:31,240 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 [2021-11-23 03:51:31,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:51:31,265 INFO L225 Difference]: With dead ends: 5446 [2021-11-23 03:51:31,265 INFO L226 Difference]: Without dead ends: 5292 [2021-11-23 03:51:31,270 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:51:31,270 INFO L933 BasicCegarLoop]: 4595 mSDtfsCounter, 4899 mSDsluCounter, 4998 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4905 SdHoareTripleChecker+Valid, 9217 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:51:31,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4905 Valid, 9217 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 746 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2021-11-23 03:51:31,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5292 states. [2021-11-23 03:51:32,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5292 to 5290. [2021-11-23 03:51:32,208 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) [2021-11-23 03:51:32,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 8301 transitions. [2021-11-23 03:51:32,236 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 8301 transitions. Word has length 144 [2021-11-23 03:51:32,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:51:32,236 INFO L470 AbstractCegarLoop]: Abstraction has 5290 states and 8301 transitions. [2021-11-23 03:51:32,236 INFO L471 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) [2021-11-23 03:51:32,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 8301 transitions. [2021-11-23 03:51:32,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-23 03:51:32,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:51:32,241 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:51:32,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-23 03:51:32,241 INFO L402 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)] === [2021-11-23 03:51:32,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:51:32,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1841431983, now seen corresponding path program 1 times [2021-11-23 03:51:32,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:51:32,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565967500] [2021-11-23 03:51:32,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:51:32,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:51:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:51:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1599 trivial. 0 not checked. [2021-11-23 03:51:32,760 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:51:32,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565967500] [2021-11-23 03:51:32,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565967500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:51:32,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:51:32,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 03:51:32,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399318574] [2021-11-23 03:51:32,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:51:32,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:51:32,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:51:32,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:51:32,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:51:32,763 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) [2021-11-23 03:51:38,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:51:41,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:48,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:51:48,733 INFO L93 Difference]: Finished difference Result 5502 states and 8508 transitions. [2021-11-23 03:51:48,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:51:48,734 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 [2021-11-23 03:51:48,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:51:48,760 INFO L225 Difference]: With dead ends: 5502 [2021-11-23 03:51:48,760 INFO L226 Difference]: Without dead ends: 5500 [2021-11-23 03:51:48,765 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:51:48,765 INFO L933 BasicCegarLoop]: 4437 mSDtfsCounter, 4482 mSDsluCounter, 11671 mSDsCounter, 0 mSdLazyCounter, 4405 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4496 SdHoareTripleChecker+Valid, 15035 SdHoareTripleChecker+Invalid, 4410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4405 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:51:48,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4496 Valid, 15035 Invalid, 4410 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 4405 Invalid, 2 Unknown, 0 Unchecked, 15.0s Time] [2021-11-23 03:51:48,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5500 states. [2021-11-23 03:51:49,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5500 to 5494. [2021-11-23 03:51:49,646 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) [2021-11-23 03:51:49,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5494 states to 5494 states and 8497 transitions. [2021-11-23 03:51:49,680 INFO L78 Accepts]: Start accepts. Automaton has 5494 states and 8497 transitions. Word has length 290 [2021-11-23 03:51:49,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:51:49,681 INFO L470 AbstractCegarLoop]: Abstraction has 5494 states and 8497 transitions. [2021-11-23 03:51:49,682 INFO L471 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) [2021-11-23 03:51:49,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5494 states and 8497 transitions. [2021-11-23 03:51:49,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-23 03:51:49,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:51:49,686 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:51:49,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-23 03:51:49,687 INFO L402 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)] === [2021-11-23 03:51:49,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:51:49,688 INFO L85 PathProgramCache]: Analyzing trace with hash 915871315, now seen corresponding path program 1 times [2021-11-23 03:51:49,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:51:49,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708268203] [2021-11-23 03:51:49,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:51:49,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:51:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:51:50,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1599 trivial. 0 not checked. [2021-11-23 03:51:50,122 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:51:50,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708268203] [2021-11-23 03:51:50,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708268203] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:51:50,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:51:50,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:51:50,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950466659] [2021-11-23 03:51:50,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:51:50,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:51:50,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:51:50,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:51:50,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:51:50,126 INFO L87 Difference]: Start difference. First operand 5494 states and 8497 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-11-23 03:51:53,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:51:55,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:51:55,595 INFO L93 Difference]: Finished difference Result 10964 states and 17001 transitions. [2021-11-23 03:51:55,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:51:55,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 291 [2021-11-23 03:51:55,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:51:55,631 INFO L225 Difference]: With dead ends: 10964 [2021-11-23 03:51:55,631 INFO L226 Difference]: Without dead ends: 5486 [2021-11-23 03:51:55,666 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:51:55,667 INFO L933 BasicCegarLoop]: 4425 mSDtfsCounter, 4674 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4680 SdHoareTripleChecker+Valid, 4452 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:51:55,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4680 Valid, 4452 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2021-11-23 03:51:55,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5486 states. [2021-11-23 03:51:56,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5486 to 5484. [2021-11-23 03:51:56,427 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) [2021-11-23 03:51:56,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 8480 transitions. [2021-11-23 03:51:56,458 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 8480 transitions. Word has length 291 [2021-11-23 03:51:56,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:51:56,460 INFO L470 AbstractCegarLoop]: Abstraction has 5484 states and 8480 transitions. [2021-11-23 03:51:56,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-11-23 03:51:56,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 8480 transitions. [2021-11-23 03:51:56,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-11-23 03:51:56,481 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:51:56,482 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:51:56,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-23 03:51:56,482 INFO L402 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)] === [2021-11-23 03:51:56,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:51:56,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1551323277, now seen corresponding path program 1 times [2021-11-23 03:51:56,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:51:56,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33182383] [2021-11-23 03:51:56,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:51:56,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:51:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:51:56,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked. [2021-11-23 03:51:56,897 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:51:56,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33182383] [2021-11-23 03:51:56,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33182383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:51:56,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:51:56,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:51:56,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515359355] [2021-11-23 03:51:56,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:51:56,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:51:56,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:51:56,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:51:56,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:51:56,901 INFO L87 Difference]: Start difference. First operand 5484 states and 8480 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-23 03:52:00,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:52:03,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:05,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:07,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:52:07,200 INFO L93 Difference]: Finished difference Result 10960 states and 16967 transitions. [2021-11-23 03:52:07,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:52:07,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 409 [2021-11-23 03:52:07,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:52:07,237 INFO L225 Difference]: With dead ends: 10960 [2021-11-23 03:52:07,237 INFO L226 Difference]: Without dead ends: 5492 [2021-11-23 03:52:07,270 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:52:07,271 INFO L933 BasicCegarLoop]: 4412 mSDtfsCounter, 5 mSDsluCounter, 9493 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13223 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:52:07,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 13223 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1043 Invalid, 3 Unknown, 0 Unchecked, 9.5s Time] [2021-11-23 03:52:07,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5492 states. [2021-11-23 03:52:08,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5492 to 5490. [2021-11-23 03:52:08,216 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) [2021-11-23 03:52:08,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5490 states to 5490 states and 8486 transitions. [2021-11-23 03:52:08,249 INFO L78 Accepts]: Start accepts. Automaton has 5490 states and 8486 transitions. Word has length 409 [2021-11-23 03:52:08,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:52:08,250 INFO L470 AbstractCegarLoop]: Abstraction has 5490 states and 8486 transitions. [2021-11-23 03:52:08,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-23 03:52:08,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5490 states and 8486 transitions. [2021-11-23 03:52:08,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2021-11-23 03:52:08,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:52:08,271 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:52:08,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-23 03:52:08,271 INFO L402 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)] === [2021-11-23 03:52:08,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:52:08,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1674623740, now seen corresponding path program 1 times [2021-11-23 03:52:08,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:52:08,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20860376] [2021-11-23 03:52:08,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:52:08,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:52:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:52:08,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked. [2021-11-23 03:52:08,659 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:52:08,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20860376] [2021-11-23 03:52:08,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20860376] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:52:08,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:52:08,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:52:08,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146417860] [2021-11-23 03:52:08,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:52:08,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:52:08,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:52:08,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:52:08,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:52:08,664 INFO L87 Difference]: Start difference. First operand 5490 states and 8486 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-11-23 03:52:12,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:52:14,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:16,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:52:16,711 INFO L93 Difference]: Finished difference Result 10998 states and 17019 transitions. [2021-11-23 03:52:16,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:52:16,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 408 [2021-11-23 03:52:16,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:52:16,738 INFO L225 Difference]: With dead ends: 10998 [2021-11-23 03:52:16,738 INFO L226 Difference]: Without dead ends: 5524 [2021-11-23 03:52:16,757 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:52:16,762 INFO L933 BasicCegarLoop]: 4424 mSDtfsCounter, 12 mSDsluCounter, 4755 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 8838 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:52:16,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 8838 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 693 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2021-11-23 03:52:16,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5524 states. [2021-11-23 03:52:17,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5524 to 5492. [2021-11-23 03:52:17,497 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) [2021-11-23 03:52:17,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5492 states to 5492 states and 8488 transitions. [2021-11-23 03:52:17,528 INFO L78 Accepts]: Start accepts. Automaton has 5492 states and 8488 transitions. Word has length 408 [2021-11-23 03:52:17,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:52:17,529 INFO L470 AbstractCegarLoop]: Abstraction has 5492 states and 8488 transitions. [2021-11-23 03:52:17,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-11-23 03:52:17,529 INFO L276 IsEmpty]: Start isEmpty. Operand 5492 states and 8488 transitions. [2021-11-23 03:52:17,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-11-23 03:52:17,543 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:52:17,544 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:52:17,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-23 03:52:17,544 INFO L402 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)] === [2021-11-23 03:52:17,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:52:17,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1984374509, now seen corresponding path program 1 times [2021-11-23 03:52:17,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:52:17,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465178232] [2021-11-23 03:52:17,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:52:17,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:52:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:52:20,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1815 backedges. 10 proven. 116 refuted. 0 times theorem prover too weak. 1689 trivial. 0 not checked. [2021-11-23 03:52:20,083 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:52:20,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465178232] [2021-11-23 03:52:20,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465178232] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:52:20,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048490396] [2021-11-23 03:52:20,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:52:20,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:52:20,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:52:20,090 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:52:20,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:52:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:52:22,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 6005 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 03:52:22,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:52:23,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1815 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 1733 trivial. 0 not checked. [2021-11-23 03:52:23,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:52:23,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048490396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:52:23,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:52:23,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [9] total 20 [2021-11-23 03:52:23,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420559509] [2021-11-23 03:52:23,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:52:23,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-23 03:52:23,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:52:23,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-23 03:52:23,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2021-11-23 03:52:23,635 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) [2021-11-23 03:52:31,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:52:37,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:39,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:41,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:43,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:45,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:47,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:49,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:51,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:53,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:55,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:09,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:53:09,068 INFO L93 Difference]: Finished difference Result 11540 states and 17888 transitions. [2021-11-23 03:53:09,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-23 03:53:09,069 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 [2021-11-23 03:53:09,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:53:09,116 INFO L225 Difference]: With dead ends: 11540 [2021-11-23 03:53:09,116 INFO L226 Difference]: Without dead ends: 6063 [2021-11-23 03:53:09,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2021-11-23 03:53:09,150 INFO L933 BasicCegarLoop]: 5078 mSDtfsCounter, 425 mSDsluCounter, 71259 mSDsCounter, 0 mSdLazyCounter, 7433 mSolverCounterSat, 4 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 70446 SdHoareTripleChecker+Invalid, 7444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7433 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:53:09,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [647 Valid, 70446 Invalid, 7444 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 7433 Invalid, 7 Unknown, 0 Unchecked, 44.1s Time] [2021-11-23 03:53:09,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6063 states. [2021-11-23 03:53:10,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6063 to 5503. [2021-11-23 03:53:10,146 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) [2021-11-23 03:53:10,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5503 states to 5503 states and 8507 transitions. [2021-11-23 03:53:10,176 INFO L78 Accepts]: Start accepts. Automaton has 5503 states and 8507 transitions. Word has length 414 [2021-11-23 03:53:10,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:53:10,178 INFO L470 AbstractCegarLoop]: Abstraction has 5503 states and 8507 transitions. [2021-11-23 03:53:10,178 INFO L471 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) [2021-11-23 03:53:10,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5503 states and 8507 transitions. [2021-11-23 03:53:10,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2021-11-23 03:53:10,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:53:10,189 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:53:10,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:53:10,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:53:10,392 INFO L402 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)] === [2021-11-23 03:53:10,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:53:10,392 INFO L85 PathProgramCache]: Analyzing trace with hash 194350390, now seen corresponding path program 1 times [2021-11-23 03:53:10,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:53:10,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406361933] [2021-11-23 03:53:10,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:53:10,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:53:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:53:11,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1826 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1826 trivial. 0 not checked. [2021-11-23 03:53:11,048 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:53:11,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406361933] [2021-11-23 03:53:11,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406361933] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:53:11,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:53:11,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 03:53:11,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94037003] [2021-11-23 03:53:11,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:53:11,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:53:11,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:53:11,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:53:11,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:53:11,052 INFO L87 Difference]: Start difference. First operand 5503 states and 8507 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2021-11-23 03:53:17,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:53:21,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:23,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:26,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:31,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:32,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:33,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:41,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:53:41,030 INFO L93 Difference]: Finished difference Result 5513 states and 8513 transitions. [2021-11-23 03:53:41,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:53:41,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 418 [2021-11-23 03:53:41,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:53:41,065 INFO L225 Difference]: With dead ends: 5513 [2021-11-23 03:53:41,065 INFO L226 Difference]: Without dead ends: 5511 [2021-11-23 03:53:41,071 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:53:41,072 INFO L933 BasicCegarLoop]: 2902 mSDtfsCounter, 2976 mSDsluCounter, 5534 mSDsCounter, 0 mSdLazyCounter, 7519 mSolverCounterSat, 5260 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3225 SdHoareTripleChecker+Valid, 7904 SdHoareTripleChecker+Invalid, 12782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5260 IncrementalHoareTripleChecker+Valid, 7519 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:53:41,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3225 Valid, 7904 Invalid, 12782 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5260 Valid, 7519 Invalid, 3 Unknown, 0 Unchecked, 28.8s Time] [2021-11-23 03:53:41,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5511 states. [2021-11-23 03:53:42,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5511 to 5504. [2021-11-23 03:53:42,118 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) [2021-11-23 03:53:42,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5504 states to 5504 states and 8501 transitions. [2021-11-23 03:53:42,145 INFO L78 Accepts]: Start accepts. Automaton has 5504 states and 8501 transitions. Word has length 418 [2021-11-23 03:53:42,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:53:42,147 INFO L470 AbstractCegarLoop]: Abstraction has 5504 states and 8501 transitions. [2021-11-23 03:53:42,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2021-11-23 03:53:42,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5504 states and 8501 transitions. [2021-11-23 03:53:42,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-11-23 03:53:42,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:53:42,167 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:53:42,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-23 03:53:42,167 INFO L402 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)] === [2021-11-23 03:53:42,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:53:42,168 INFO L85 PathProgramCache]: Analyzing trace with hash 480359603, now seen corresponding path program 1 times [2021-11-23 03:53:42,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:53:42,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027247137] [2021-11-23 03:53:42,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:53:42,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:53:42,373 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:53:42,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224354186] [2021-11-23 03:53:42,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:53:42,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:53:42,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:53:42,377 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:53:42,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 03:53:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:53:44,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 6437 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 03:53:44,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:53:45,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1912 trivial. 0 not checked. [2021-11-23 03:53:45,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:53:45,103 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:53:45,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027247137] [2021-11-23 03:53:45,103 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:53:45,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224354186] [2021-11-23 03:53:45,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224354186] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:53:45,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:53:45,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:53:45,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165474486] [2021-11-23 03:53:45,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:53:45,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:53:45,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:53:45,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:53:45,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:53:45,107 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) [2021-11-23 03:53:48,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:53:51,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:54,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:53:54,701 INFO L93 Difference]: Finished difference Result 5504 states and 8501 transitions. [2021-11-23 03:53:54,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:53:54,702 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 [2021-11-23 03:53:54,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:53:54,738 INFO L225 Difference]: With dead ends: 5504 [2021-11-23 03:53:54,738 INFO L226 Difference]: Without dead ends: 5502 [2021-11-23 03:53:54,744 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:53:54,745 INFO L933 BasicCegarLoop]: 4462 mSDtfsCounter, 261 mSDsluCounter, 14235 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 17630 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:53:54,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 17630 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1448 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2021-11-23 03:53:54,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5502 states. [2021-11-23 03:53:55,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5502 to 5502. [2021-11-23 03:53:55,763 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) [2021-11-23 03:53:55,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 8497 transitions. [2021-11-23 03:53:55,791 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 8497 transitions. Word has length 447 [2021-11-23 03:53:55,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:53:55,792 INFO L470 AbstractCegarLoop]: Abstraction has 5502 states and 8497 transitions. [2021-11-23 03:53:55,792 INFO L471 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) [2021-11-23 03:53:55,792 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 8497 transitions. [2021-11-23 03:53:55,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2021-11-23 03:53:55,807 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:53:55,807 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:53:55,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:53:56,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:53:56,008 INFO L402 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)] === [2021-11-23 03:53:56,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:53:56,009 INFO L85 PathProgramCache]: Analyzing trace with hash -2074805959, now seen corresponding path program 1 times [2021-11-23 03:53:56,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:53:56,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395658766] [2021-11-23 03:53:56,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:53:56,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:53:56,183 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:53:56,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2088208990] [2021-11-23 03:53:56,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:53:56,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:53:56,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:53:56,186 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:53:56,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2ff9c98-bc2e-416d-b4f2-07d6c95a5e4e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 03:53:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:53:58,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 6557 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:53:58,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:53:59,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1862 backedges. 200 proven. 1 refuted. 0 times theorem prover too weak. 1661 trivial. 0 not checked. [2021-11-23 03:53:59,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:54:00,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1862 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2021-11-23 03:54:00,466 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:54:00,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395658766] [2021-11-23 03:54:00,466 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:54:00,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088208990] [2021-11-23 03:54:00,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088208990] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:54:00,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [975859695] [2021-11-23 03:54:00,503 INFO L159 IcfgInterpreter]: Started Sifa with 251 locations of interest [2021-11-23 03:54:00,503 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:54:00,512 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:54:00,518 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:54:00,519 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:54:15,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:54:17,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:54:17,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:54:19,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:54:21,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:54:22,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:54:24,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:58:47,611 WARN L227 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 6602 DAG size of output: 6293 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-23 03:59:00,307 WARN L227 SmtUtils]: Spent 5.00s on a formula simplification. DAG size of input: 6602 DAG size of output: 6293 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)