./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--staging--ozwpan--ozwpan.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 35c53346dd316b8c10606df4fbc6b2f8282f97860ff3738ef0364e482c1db87c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 16:11:35,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 16:11:35,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 16:11:35,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 16:11:35,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 16:11:35,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 16:11:35,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 16:11:35,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 16:11:35,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 16:11:35,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 16:11:35,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 16:11:35,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 16:11:35,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 16:11:35,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 16:11:35,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 16:11:35,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 16:11:35,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 16:11:35,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 16:11:35,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 16:11:35,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 16:11:35,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 16:11:35,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 16:11:35,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 16:11:35,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 16:11:35,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 16:11:35,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 16:11:35,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 16:11:35,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 16:11:35,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 16:11:35,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 16:11:35,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 16:11:35,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 16:11:35,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 16:11:35,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 16:11:35,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 16:11:35,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 16:11:35,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 16:11:35,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 16:11:35,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 16:11:35,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 16:11:35,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 16:11:35,993 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 16:11:36,018 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 16:11:36,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 16:11:36,019 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 16:11:36,019 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 16:11:36,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 16:11:36,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 16:11:36,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 16:11:36,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 16:11:36,021 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 16:11:36,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 16:11:36,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 16:11:36,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 16:11:36,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 16:11:36,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 16:11:36,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 16:11:36,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 16:11:36,022 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 16:11:36,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 16:11:36,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 16:11:36,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 16:11:36,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 16:11:36,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 16:11:36,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 16:11:36,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 16:11:36,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 16:11:36,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 16:11:36,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 16:11:36,024 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 16:11:36,025 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 16:11:36,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 16:11:36,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 16:11:36,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35c53346dd316b8c10606df4fbc6b2f8282f97860ff3738ef0364e482c1db87c [2021-12-18 16:11:36,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 16:11:36,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 16:11:36,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 16:11:36,216 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 16:11:36,216 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 16:11:36,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i [2021-12-18 16:11:36,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a09eeda43/954fb0b5ef0b4476a25788054851c3b2/FLAG2916a7f65 [2021-12-18 16:11:36,960 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 16:11:36,961 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i [2021-12-18 16:11:37,013 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a09eeda43/954fb0b5ef0b4476a25788054851c3b2/FLAG2916a7f65 [2021-12-18 16:11:37,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a09eeda43/954fb0b5ef0b4476a25788054851c3b2 [2021-12-18 16:11:37,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 16:11:37,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 16:11:37,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 16:11:37,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 16:11:37,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 16:11:37,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:11:37" (1/1) ... [2021-12-18 16:11:37,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bcd8ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:11:37, skipping insertion in model container [2021-12-18 16:11:37,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:11:37" (1/1) ... [2021-12-18 16:11:37,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 16:11:37,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 16:11:43,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[671828,671841] [2021-12-18 16:11:43,273 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[671973,671986] [2021-12-18 16:11:43,274 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[672119,672132] [2021-12-18 16:11:43,275 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[672284,672297] [2021-12-18 16:11:43,275 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[672442,672455] [2021-12-18 16:11:43,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[672600,672613] [2021-12-18 16:11:43,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[672758,672771] [2021-12-18 16:11:43,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[672918,672931] [2021-12-18 16:11:43,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[673077,673090] [2021-12-18 16:11:43,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[673216,673229] [2021-12-18 16:11:43,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[673358,673371] [2021-12-18 16:11:43,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[673507,673520] [2021-12-18 16:11:43,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[673646,673659] [2021-12-18 16:11:43,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[673801,673814] [2021-12-18 16:11:43,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[673961,673974] [2021-12-18 16:11:43,290 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[674112,674125] [2021-12-18 16:11:43,290 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[674263,674276] [2021-12-18 16:11:43,291 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[674415,674428] [2021-12-18 16:11:43,291 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[674564,674577] [2021-12-18 16:11:43,292 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[674712,674725] [2021-12-18 16:11:43,292 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[674869,674882] [2021-12-18 16:11:43,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[675018,675031] [2021-12-18 16:11:43,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[675174,675187] [2021-12-18 16:11:43,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[675327,675340] [2021-12-18 16:11:43,295 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[675473,675486] [2021-12-18 16:11:43,295 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[675616,675629] [2021-12-18 16:11:43,295 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[675768,675781] [2021-12-18 16:11:43,298 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[675914,675927] [2021-12-18 16:11:43,299 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[676059,676072] [2021-12-18 16:11:43,300 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[676213,676226] [2021-12-18 16:11:43,300 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[676364,676377] [2021-12-18 16:11:43,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[676519,676532] [2021-12-18 16:11:43,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[676671,676684] [2021-12-18 16:11:43,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[676826,676839] [2021-12-18 16:11:43,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[676990,677003] [2021-12-18 16:11:43,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[677146,677159] [2021-12-18 16:11:43,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[677310,677323] [2021-12-18 16:11:43,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[677452,677465] [2021-12-18 16:11:43,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[677610,677623] [2021-12-18 16:11:43,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[677777,677790] [2021-12-18 16:11:43,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[677936,677949] [2021-12-18 16:11:43,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[678095,678108] [2021-12-18 16:11:43,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[678244,678257] [2021-12-18 16:11:43,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[678391,678404] [2021-12-18 16:11:43,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[678530,678543] [2021-12-18 16:11:43,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[678693,678706] [2021-12-18 16:11:43,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[678859,678872] [2021-12-18 16:11:43,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[679023,679036] [2021-12-18 16:11:43,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[679188,679201] [2021-12-18 16:11:43,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[679353,679366] [2021-12-18 16:11:43,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[679519,679532] [2021-12-18 16:11:43,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[679684,679697] [2021-12-18 16:11:43,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[679851,679864] [2021-12-18 16:11:43,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[680011,680024] [2021-12-18 16:11:43,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[680173,680186] [2021-12-18 16:11:43,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[680332,680345] [2021-12-18 16:11:43,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[680478,680491] [2021-12-18 16:11:43,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[680621,680634] [2021-12-18 16:11:43,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[680765,680778] [2021-12-18 16:11:43,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[680908,680921] [2021-12-18 16:11:43,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[681052,681065] [2021-12-18 16:11:43,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[681193,681206] [2021-12-18 16:11:43,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[681331,681344] [2021-12-18 16:11:43,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[681489,681502] [2021-12-18 16:11:43,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[681648,681661] [2021-12-18 16:11:43,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[681804,681817] [2021-12-18 16:11:43,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[681953,681966] [2021-12-18 16:11:43,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[682105,682118] [2021-12-18 16:11:43,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[682256,682269] [2021-12-18 16:11:43,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[682405,682418] [2021-12-18 16:11:43,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[682557,682570] [2021-12-18 16:11:43,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[682705,682718] [2021-12-18 16:11:43,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[682858,682871] [2021-12-18 16:11:43,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[683009,683022] [2021-12-18 16:11:43,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[683159,683172] [2021-12-18 16:11:43,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[683306,683319] [2021-12-18 16:11:43,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[683457,683470] [2021-12-18 16:11:43,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[683608,683621] [2021-12-18 16:11:43,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[683756,683769] [2021-12-18 16:11:43,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[683922,683935] [2021-12-18 16:11:43,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[684091,684104] [2021-12-18 16:11:43,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[684258,684271] [2021-12-18 16:11:43,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[684426,684439] [2021-12-18 16:11:43,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[684576,684589] [2021-12-18 16:11:43,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[684723,684736] [2021-12-18 16:11:43,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[684884,684897] [2021-12-18 16:11:43,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[685054,685067] [2021-12-18 16:11:43,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[685216,685229] [2021-12-18 16:11:43,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 16:11:43,365 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 16:11:43,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[671828,671841] [2021-12-18 16:11:43,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[671973,671986] [2021-12-18 16:11:43,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[672119,672132] [2021-12-18 16:11:43,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[672284,672297] [2021-12-18 16:11:43,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[672442,672455] [2021-12-18 16:11:43,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[672600,672613] [2021-12-18 16:11:43,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[672758,672771] [2021-12-18 16:11:43,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[672918,672931] [2021-12-18 16:11:43,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[673077,673090] [2021-12-18 16:11:43,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[673216,673229] [2021-12-18 16:11:43,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[673358,673371] [2021-12-18 16:11:43,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[673507,673520] [2021-12-18 16:11:43,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[673646,673659] [2021-12-18 16:11:43,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[673801,673814] [2021-12-18 16:11:43,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[673961,673974] [2021-12-18 16:11:43,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[674112,674125] [2021-12-18 16:11:43,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[674263,674276] [2021-12-18 16:11:43,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[674415,674428] [2021-12-18 16:11:43,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[674564,674577] [2021-12-18 16:11:43,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[674712,674725] [2021-12-18 16:11:43,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[674869,674882] [2021-12-18 16:11:43,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[675018,675031] [2021-12-18 16:11:43,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[675174,675187] [2021-12-18 16:11:43,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[675327,675340] [2021-12-18 16:11:43,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[675473,675486] [2021-12-18 16:11:43,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[675616,675629] [2021-12-18 16:11:43,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[675768,675781] [2021-12-18 16:11:43,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[675914,675927] [2021-12-18 16:11:43,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[676059,676072] [2021-12-18 16:11:43,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[676213,676226] [2021-12-18 16:11:43,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[676364,676377] [2021-12-18 16:11:43,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[676519,676532] [2021-12-18 16:11:43,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[676671,676684] [2021-12-18 16:11:43,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[676826,676839] [2021-12-18 16:11:43,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[676990,677003] [2021-12-18 16:11:43,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[677146,677159] [2021-12-18 16:11:43,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[677310,677323] [2021-12-18 16:11:43,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[677452,677465] [2021-12-18 16:11:43,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[677610,677623] [2021-12-18 16:11:43,809 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[677777,677790] [2021-12-18 16:11:43,809 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[677936,677949] [2021-12-18 16:11:43,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[678095,678108] [2021-12-18 16:11:43,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[678244,678257] [2021-12-18 16:11:43,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[678391,678404] [2021-12-18 16:11:43,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[678530,678543] [2021-12-18 16:11:43,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[678693,678706] [2021-12-18 16:11:43,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[678859,678872] [2021-12-18 16:11:43,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[679023,679036] [2021-12-18 16:11:43,812 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[679188,679201] [2021-12-18 16:11:43,812 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[679353,679366] [2021-12-18 16:11:43,812 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[679519,679532] [2021-12-18 16:11:43,812 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[679684,679697] [2021-12-18 16:11:43,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[679851,679864] [2021-12-18 16:11:43,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[680011,680024] [2021-12-18 16:11:43,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[680173,680186] [2021-12-18 16:11:43,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[680332,680345] [2021-12-18 16:11:43,814 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[680478,680491] [2021-12-18 16:11:43,814 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[680621,680634] [2021-12-18 16:11:43,814 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[680765,680778] [2021-12-18 16:11:43,815 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[680908,680921] [2021-12-18 16:11:43,815 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[681052,681065] [2021-12-18 16:11:43,816 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[681193,681206] [2021-12-18 16:11:43,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[681331,681344] [2021-12-18 16:11:43,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[681489,681502] [2021-12-18 16:11:43,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[681648,681661] [2021-12-18 16:11:43,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[681804,681817] [2021-12-18 16:11:43,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[681953,681966] [2021-12-18 16:11:43,823 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[682105,682118] [2021-12-18 16:11:43,823 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[682256,682269] [2021-12-18 16:11:43,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[682405,682418] [2021-12-18 16:11:43,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[682557,682570] [2021-12-18 16:11:43,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[682705,682718] [2021-12-18 16:11:43,828 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[682858,682871] [2021-12-18 16:11:43,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[683009,683022] [2021-12-18 16:11:43,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[683159,683172] [2021-12-18 16:11:43,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[683306,683319] [2021-12-18 16:11:43,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[683457,683470] [2021-12-18 16:11:43,830 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[683608,683621] [2021-12-18 16:11:43,831 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[683756,683769] [2021-12-18 16:11:43,831 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[683922,683935] [2021-12-18 16:11:43,831 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[684091,684104] [2021-12-18 16:11:43,832 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[684258,684271] [2021-12-18 16:11:43,832 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[684426,684439] [2021-12-18 16:11:43,832 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[684576,684589] [2021-12-18 16:11:43,833 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[684723,684736] [2021-12-18 16:11:43,833 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[684884,684897] [2021-12-18 16:11:43,833 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[685054,685067] [2021-12-18 16:11:43,833 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i[685216,685229] [2021-12-18 16:11:43,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 16:11:44,091 INFO L208 MainTranslator]: Completed translation [2021-12-18 16:11:44,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:11:44 WrapperNode [2021-12-18 16:11:44,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 16:11:44,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 16:11:44,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 16:11:44,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 16:11:44,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:11:44" (1/1) ... [2021-12-18 16:11:44,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:11:44" (1/1) ... [2021-12-18 16:11:44,423 INFO L137 Inliner]: procedures = 971, calls = 5529, calls flagged for inlining = 439, calls inlined = 309, statements flattened = 10272 [2021-12-18 16:11:44,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 16:11:44,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 16:11:44,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 16:11:44,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 16:11:44,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:11:44" (1/1) ... [2021-12-18 16:11:44,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:11:44" (1/1) ... [2021-12-18 16:11:44,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:11:44" (1/1) ... [2021-12-18 16:11:44,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:11:44" (1/1) ... [2021-12-18 16:11:44,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:11:44" (1/1) ... [2021-12-18 16:11:44,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:11:44" (1/1) ... [2021-12-18 16:11:44,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:11:44" (1/1) ... [2021-12-18 16:11:44,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 16:11:44,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 16:11:44,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 16:11:44,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 16:11:44,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:11:44" (1/1) ... [2021-12-18 16:11:44,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 16:11:44,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:11:44,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 16:11:44,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 16:11:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2021-12-18 16:11:44,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2021-12-18 16:11:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure oz_usb_farewell [2021-12-18 16:11:44,721 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_usb_farewell [2021-12-18 16:11:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-18 16:11:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-12-18 16:11:44,722 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-12-18 16:11:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2021-12-18 16:11:44,722 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2021-12-18 16:11:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure oz_usb_stop [2021-12-18 16:11:44,722 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_usb_stop [2021-12-18 16:11:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_134 [2021-12-18 16:11:44,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_134 [2021-12-18 16:11:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-12-18 16:11:44,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-12-18 16:11:44,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 16:11:44,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 16:11:44,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_tx_frame_lock_of_oz_pd [2021-12-18 16:11:44,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_tx_frame_lock_of_oz_pd [2021-12-18 16:11:44,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_g_tasklet_lock [2021-12-18 16:11:44,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_g_tasklet_lock [2021-12-18 16:11:44,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_152 [2021-12-18 16:11:44,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_152 [2021-12-18 16:11:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-18 16:11:44,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-18 16:11:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure oz_get_port_from_addr [2021-12-18 16:11:44,724 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_get_port_from_addr [2021-12-18 16:11:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure oz_tx_isoc_free [2021-12-18 16:11:44,724 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_tx_isoc_free [2021-12-18 16:11:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 16:11:44,724 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 16:11:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure oz_pd_stop [2021-12-18 16:11:44,725 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_pd_stop [2021-12-18 16:11:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-12-18 16:11:44,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-12-18 16:11:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 16:11:44,725 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 16:11:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-18 16:11:44,725 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-18 16:11:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure oz_usb_start [2021-12-18 16:11:44,725 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_usb_start [2021-12-18 16:11:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure oz_tx_frame_alloc [2021-12-18 16:11:44,726 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_tx_frame_alloc [2021-12-18 16:11:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 16:11:44,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 16:11:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 16:11:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-12-18 16:11:44,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-12-18 16:11:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-12-18 16:11:44,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-12-18 16:11:44,727 INFO L130 BoogieDeclarations]: Found specification of procedure oz_usb_get_frame_number [2021-12-18 16:11:44,727 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_usb_get_frame_number [2021-12-18 16:11:44,727 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2021-12-18 16:11:44,727 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2021-12-18 16:11:44,727 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2021-12-18 16:11:44,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2021-12-18 16:11:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 16:11:44,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 16:11:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure oz_hcd_buffer_data [2021-12-18 16:11:44,728 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_hcd_buffer_data [2021-12-18 16:11:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-18 16:11:44,728 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-18 16:11:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure oz_usb_get_desc_req [2021-12-18 16:11:44,728 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_usb_get_desc_req [2021-12-18 16:11:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure oz_usb_request_heartbeat [2021-12-18 16:11:44,729 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_usb_request_heartbeat [2021-12-18 16:11:44,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-12-18 16:11:44,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-12-18 16:11:44,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 16:11:44,729 INFO L130 BoogieDeclarations]: Found specification of procedure oz_elt_info_alloc [2021-12-18 16:11:44,729 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_elt_info_alloc [2021-12-18 16:11:44,730 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-18 16:11:44,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-18 16:11:44,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 16:11:44,732 INFO L130 BoogieDeclarations]: Found specification of procedure hrtimer_cancel [2021-12-18 16:11:44,732 INFO L138 BoogieDeclarations]: Found implementation of procedure hrtimer_cancel [2021-12-18 16:11:44,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 16:11:44,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 16:11:44,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 16:11:44,733 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 16:11:44,733 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_set [2021-12-18 16:11:44,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_set [2021-12-18 16:11:44,734 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-18 16:11:44,734 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-18 16:11:44,734 INFO L130 BoogieDeclarations]: Found specification of procedure oz_hcd_data_ind [2021-12-18 16:11:44,734 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_hcd_data_ind [2021-12-18 16:11:44,734 INFO L130 BoogieDeclarations]: Found specification of procedure oz_usb_submit_elt [2021-12-18 16:11:44,735 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_usb_submit_elt [2021-12-18 16:11:44,735 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put___0 [2021-12-18 16:11:44,735 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put___0 [2021-12-18 16:11:44,735 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-18 16:11:44,735 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-18 16:11:44,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_122___0 [2021-12-18 16:11:44,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_122___0 [2021-12-18 16:11:44,735 INFO L130 BoogieDeclarations]: Found specification of procedure oz_clean_endpoints_for_interface [2021-12-18 16:11:44,735 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_clean_endpoints_for_interface [2021-12-18 16:11:44,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_oz_elt_buf [2021-12-18 16:11:44,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_oz_elt_buf [2021-12-18 16:11:44,736 INFO L130 BoogieDeclarations]: Found specification of procedure oz_hcd_bus_suspend [2021-12-18 16:11:44,736 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_hcd_bus_suspend [2021-12-18 16:11:44,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_121___0 [2021-12-18 16:11:44,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_121___0 [2021-12-18 16:11:44,736 INFO L130 BoogieDeclarations]: Found specification of procedure oz_hcd_shutdown [2021-12-18 16:11:44,736 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_hcd_shutdown [2021-12-18 16:11:44,736 INFO L130 BoogieDeclarations]: Found specification of procedure oz_pd_set_state [2021-12-18 16:11:44,737 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_pd_set_state [2021-12-18 16:11:44,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 16:11:44,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 16:11:44,737 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-18 16:11:44,737 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-18 16:11:44,737 INFO L130 BoogieDeclarations]: Found specification of procedure oz_plat_remove [2021-12-18 16:11:44,737 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_plat_remove [2021-12-18 16:11:44,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 16:11:44,737 INFO L130 BoogieDeclarations]: Found specification of procedure oz_hcd_claim [2021-12-18 16:11:44,738 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_hcd_claim [2021-12-18 16:11:44,738 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-18 16:11:44,738 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-18 16:11:44,738 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-18 16:11:44,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_hcd_lock_of_oz_hcd [2021-12-18 16:11:44,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_hcd_lock_of_oz_hcd [2021-12-18 16:11:44,739 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2021-12-18 16:11:44,739 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2021-12-18 16:11:44,739 INFO L130 BoogieDeclarations]: Found specification of procedure dev_hard_header [2021-12-18 16:11:44,739 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_hard_header [2021-12-18 16:11:44,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 16:11:44,739 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 16:11:44,739 INFO L130 BoogieDeclarations]: Found specification of procedure oz_pd_get [2021-12-18 16:11:44,740 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_pd_get [2021-12-18 16:11:44,740 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-12-18 16:11:44,740 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-12-18 16:11:44,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-12-18 16:11:44,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-12-18 16:11:44,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_125 [2021-12-18 16:11:44,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_125 [2021-12-18 16:11:44,740 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2021-12-18 16:11:44,740 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2021-12-18 16:11:44,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-12-18 16:11:44,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-12-18 16:11:44,741 INFO L130 BoogieDeclarations]: Found specification of procedure timespec_to_ns [2021-12-18 16:11:44,741 INFO L138 BoogieDeclarations]: Found implementation of procedure timespec_to_ns [2021-12-18 16:11:44,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 16:11:44,741 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 16:11:44,741 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 16:11:44,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-12-18 16:11:44,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-12-18 16:11:44,741 INFO L130 BoogieDeclarations]: Found specification of procedure oz_app_enable [2021-12-18 16:11:44,742 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_app_enable [2021-12-18 16:11:44,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_base_class__double_registration [2021-12-18 16:11:44,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_base_class__double_registration [2021-12-18 16:11:44,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 16:11:44,742 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-12-18 16:11:44,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-12-18 16:11:44,742 INFO L130 BoogieDeclarations]: Found specification of procedure oz_hcd_start [2021-12-18 16:11:44,742 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_hcd_start [2021-12-18 16:11:44,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_121 [2021-12-18 16:11:44,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_121 [2021-12-18 16:11:44,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_126 [2021-12-18 16:11:44,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_126 [2021-12-18 16:11:44,743 INFO L130 BoogieDeclarations]: Found specification of procedure oz_isoc_stream_free [2021-12-18 16:11:44,743 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_isoc_stream_free [2021-12-18 16:11:44,743 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2021-12-18 16:11:44,743 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2021-12-18 16:11:44,743 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 16:11:44,743 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 16:11:44,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_124___3 [2021-12-18 16:11:44,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_124___3 [2021-12-18 16:11:44,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_oz_cdev [2021-12-18 16:11:44,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_oz_cdev [2021-12-18 16:11:44,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 16:11:44,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 16:11:44,744 INFO L130 BoogieDeclarations]: Found specification of procedure oz_process_ep0_urb [2021-12-18 16:11:44,744 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_process_ep0_urb [2021-12-18 16:11:44,744 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-18 16:11:44,744 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-18 16:11:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-18 16:11:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-18 16:11:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-12-18 16:11:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-12-18 16:11:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-12-18 16:11:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-12-18 16:11:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure oz_hcd_bus_resume [2021-12-18 16:11:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_hcd_bus_resume [2021-12-18 16:11:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure oz_ep_free [2021-12-18 16:11:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_ep_free [2021-12-18 16:11:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 16:11:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 16:11:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 16:11:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2021-12-18 16:11:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2021-12-18 16:11:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132___0 [2021-12-18 16:11:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132___0 [2021-12-18 16:11:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure oz_plat_shutdown [2021-12-18 16:11:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_plat_shutdown [2021-12-18 16:11:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure oz_hcd_control_cnf [2021-12-18 16:11:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_hcd_control_cnf [2021-12-18 16:11:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_unregister_chrdev_region [2021-12-18 16:11:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_unregister_chrdev_region [2021-12-18 16:11:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-12-18 16:11:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-12-18 16:11:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-12-18 16:11:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-12-18 16:11:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-18 16:11:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-18 16:11:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure oz_plat_resume [2021-12-18 16:11:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_plat_resume [2021-12-18 16:11:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure oz_usb_get [2021-12-18 16:11:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_usb_get [2021-12-18 16:11:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure oz_queue_elt_info [2021-12-18 16:11:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_queue_elt_info [2021-12-18 16:11:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadget [2021-12-18 16:11:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadget [2021-12-18 16:11:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-18 16:11:44,749 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-18 16:11:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2021-12-18 16:11:44,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2021-12-18 16:11:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure oz_cdev_claim_ctx [2021-12-18 16:11:44,749 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_cdev_claim_ctx [2021-12-18 16:11:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-12-18 16:11:44,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-12-18 16:11:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure getrawmonotonic [2021-12-18 16:11:44,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getrawmonotonic [2021-12-18 16:11:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure dev_queue_xmit [2021-12-18 16:11:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_queue_xmit [2021-12-18 16:11:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 16:11:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 16:11:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure oz_binding_add [2021-12-18 16:11:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_binding_add [2021-12-18 16:11:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_139 [2021-12-18 16:11:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_139 [2021-12-18 16:11:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_133 [2021-12-18 16:11:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_133 [2021-12-18 16:11:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure oz_retire_frame [2021-12-18 16:11:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_retire_frame [2021-12-18 16:11:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 16:11:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 16:11:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_151 [2021-12-18 16:11:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_151 [2021-12-18 16:11:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-12-18 16:11:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-12-18 16:11:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-12-18 16:11:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-12-18 16:11:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 16:11:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 16:11:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure oz_find_urb_by_id [2021-12-18 16:11:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_find_urb_by_id [2021-12-18 16:11:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_tx_frame_lock_of_oz_pd [2021-12-18 16:11:44,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_tx_frame_lock_of_oz_pd [2021-12-18 16:11:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure hrtimer_active [2021-12-18 16:11:44,755 INFO L138 BoogieDeclarations]: Found implementation of procedure hrtimer_active [2021-12-18 16:11:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 16:11:44,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 16:11:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-12-18 16:11:44,755 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-12-18 16:11:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 16:11:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 16:11:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-12-18 16:11:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-12-18 16:11:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del [2021-12-18 16:11:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del [2021-12-18 16:11:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 16:11:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-12-18 16:11:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-12-18 16:11:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2021-12-18 16:11:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2021-12-18 16:11:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-18 16:11:44,757 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-18 16:11:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure oz_pd_request_heartbeat [2021-12-18 16:11:44,757 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_pd_request_heartbeat [2021-12-18 16:11:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-12-18 16:11:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure timespec_sub [2021-12-18 16:11:44,757 INFO L138 BoogieDeclarations]: Found implementation of procedure timespec_sub [2021-12-18 16:11:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure oz_build_endpoints_for_interface [2021-12-18 16:11:44,757 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_build_endpoints_for_interface [2021-12-18 16:11:44,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 16:11:44,758 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-18 16:11:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-18 16:11:44,758 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 16:11:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 16:11:44,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_123___4 [2021-12-18 16:11:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_123___4 [2021-12-18 16:11:44,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 16:11:44,758 INFO L130 BoogieDeclarations]: Found specification of procedure oz_plat_probe [2021-12-18 16:11:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_plat_probe [2021-12-18 16:11:44,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-12-18 16:11:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-12-18 16:11:44,759 INFO L130 BoogieDeclarations]: Found specification of procedure oz_pd_destroy [2021-12-18 16:11:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_pd_destroy [2021-12-18 16:11:44,759 INFO L130 BoogieDeclarations]: Found specification of procedure oz_usb_rx [2021-12-18 16:11:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_usb_rx [2021-12-18 16:11:44,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-12-18 16:11:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-12-18 16:11:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 16:11:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 16:11:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-12-18 16:11:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-12-18 16:11:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-18 16:11:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-18 16:11:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_fs_char_dev__double_registration [2021-12-18 16:11:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_fs_char_dev__double_registration [2021-12-18 16:11:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-18 16:11:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-18 16:11:44,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-12-18 16:11:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-12-18 16:11:44,761 INFO L130 BoogieDeclarations]: Found specification of procedure pd_stream_find [2021-12-18 16:11:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_stream_find [2021-12-18 16:11:44,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_135 [2021-12-18 16:11:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_135 [2021-12-18 16:11:44,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_136 [2021-12-18 16:11:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_136 [2021-12-18 16:11:44,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_143 [2021-12-18 16:11:44,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_143 [2021-12-18 16:11:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_g_tasklet_lock [2021-12-18 16:11:44,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_g_tasklet_lock [2021-12-18 16:11:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2021-12-18 16:11:44,762 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2021-12-18 16:11:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_148 [2021-12-18 16:11:44,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_148 [2021-12-18 16:11:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 16:11:44,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 16:11:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 16:11:44,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 16:11:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-18 16:11:44,763 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-18 16:11:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_g_polling_lock [2021-12-18 16:11:44,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_g_polling_lock [2021-12-18 16:11:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure oz_usb_set_clear_feature_req [2021-12-18 16:11:44,763 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_usb_set_clear_feature_req [2021-12-18 16:11:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_unregister [2021-12-18 16:11:44,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_unregister [2021-12-18 16:11:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure oz_ep_alloc [2021-12-18 16:11:44,764 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_ep_alloc [2021-12-18 16:11:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-18 16:11:44,764 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-18 16:11:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_hcd_lock_of_oz_hcd [2021-12-18 16:11:44,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_hcd_lock_of_oz_hcd [2021-12-18 16:11:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-12-18 16:11:44,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-12-18 16:11:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure oz_elt_info_free [2021-12-18 16:11:44,765 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_elt_info_free [2021-12-18 16:11:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-18 16:11:44,765 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-18 16:11:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2021-12-18 16:11:44,765 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2021-12-18 16:11:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2021-12-18 16:11:44,765 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2021-12-18 16:11:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 16:11:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 16:11:44,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 16:11:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-12-18 16:11:44,766 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-12-18 16:11:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure oz_pd_put [2021-12-18 16:11:44,766 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_pd_put [2021-12-18 16:11:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure oz_timer_add [2021-12-18 16:11:44,766 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_timer_add [2021-12-18 16:11:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 16:11:44,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 16:11:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133___0 [2021-12-18 16:11:44,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133___0 [2021-12-18 16:11:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure oz_enqueue_ep_urb [2021-12-18 16:11:44,767 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_enqueue_ep_urb [2021-12-18 16:11:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2021-12-18 16:11:44,767 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2021-12-18 16:11:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-18 16:11:44,767 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-18 16:11:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-12-18 16:11:44,767 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-12-18 16:11:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_g_polling_lock [2021-12-18 16:11:44,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_g_polling_lock [2021-12-18 16:11:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure oz_free_urb_link [2021-12-18 16:11:44,768 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_free_urb_link [2021-12-18 16:11:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 16:11:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure getnstimeofday [2021-12-18 16:11:44,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getnstimeofday [2021-12-18 16:11:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-18 16:11:44,768 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-18 16:11:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure oz_cdev_release_ctx [2021-12-18 16:11:44,768 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_cdev_release_ctx [2021-12-18 16:11:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-18 16:11:44,769 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-18 16:11:44,769 INFO L130 BoogieDeclarations]: Found specification of procedure oz_hcd_endpoint_disable [2021-12-18 16:11:44,769 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_hcd_endpoint_disable [2021-12-18 16:11:44,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-12-18 16:11:44,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-12-18 16:11:44,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 16:11:44,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 16:11:44,769 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2021-12-18 16:11:44,769 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2021-12-18 16:11:44,769 INFO L130 BoogieDeclarations]: Found specification of procedure oz_hcd_endpoint_reset [2021-12-18 16:11:44,770 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_hcd_endpoint_reset [2021-12-18 16:11:44,770 INFO L130 BoogieDeclarations]: Found specification of procedure oz_elt_stream_put [2021-12-18 16:11:44,770 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_elt_stream_put [2021-12-18 16:11:44,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_144 [2021-12-18 16:11:44,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_144 [2021-12-18 16:11:44,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_oz_cdev [2021-12-18 16:11:44,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_oz_cdev [2021-12-18 16:11:44,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_149 [2021-12-18 16:11:44,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_149 [2021-12-18 16:11:44,770 INFO L130 BoogieDeclarations]: Found specification of procedure oz_hcd_get_frame_number [2021-12-18 16:11:44,770 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_hcd_get_frame_number [2021-12-18 16:11:44,771 INFO L130 BoogieDeclarations]: Found specification of procedure oz_pd_find [2021-12-18 16:11:44,771 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_pd_find [2021-12-18 16:11:44,771 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-12-18 16:11:44,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-12-18 16:11:44,771 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2021-12-18 16:11:44,771 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2021-12-18 16:11:44,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_136 [2021-12-18 16:11:44,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_136 [2021-12-18 16:11:44,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_137 [2021-12-18 16:11:44,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_137 [2021-12-18 16:11:44,772 INFO L130 BoogieDeclarations]: Found specification of procedure oz_usb_init [2021-12-18 16:11:44,772 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_usb_init [2021-12-18 16:11:44,772 INFO L130 BoogieDeclarations]: Found specification of procedure oz_complete_urb [2021-12-18 16:11:44,772 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_complete_urb [2021-12-18 16:11:44,772 INFO L130 BoogieDeclarations]: Found specification of procedure oz_usb_heartbeat [2021-12-18 16:11:44,772 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_usb_heartbeat [2021-12-18 16:11:44,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-12-18 16:11:44,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-12-18 16:11:44,772 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 16:11:44,772 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 16:11:44,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_122 [2021-12-18 16:11:44,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_122 [2021-12-18 16:11:44,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_127 [2021-12-18 16:11:44,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_127 [2021-12-18 16:11:44,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-12-18 16:11:44,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-12-18 16:11:44,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_oz_elt_buf [2021-12-18 16:11:44,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_oz_elt_buf [2021-12-18 16:11:44,773 INFO L130 BoogieDeclarations]: Found specification of procedure oz_hcd_put [2021-12-18 16:11:44,773 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_hcd_put [2021-12-18 16:11:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_unregister_chrdev_region [2021-12-18 16:11:44,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_unregister_chrdev_region [2021-12-18 16:11:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-12-18 16:11:44,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-12-18 16:11:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_port_lock_of_oz_port [2021-12-18 16:11:44,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_port_lock_of_oz_port [2021-12-18 16:11:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-18 16:11:44,774 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-18 16:11:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure oz_services_stop [2021-12-18 16:11:44,774 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_services_stop [2021-12-18 16:11:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-18 16:11:44,775 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-18 16:11:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure oz_usb_term [2021-12-18 16:11:44,775 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_usb_term [2021-12-18 16:11:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure oz_usb_put [2021-12-18 16:11:44,775 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_usb_put [2021-12-18 16:11:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_140___0 [2021-12-18 16:11:44,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_140___0 [2021-12-18 16:11:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure hrtimer_start [2021-12-18 16:11:44,775 INFO L138 BoogieDeclarations]: Found implementation of procedure hrtimer_start [2021-12-18 16:11:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure oz_hcd_stop [2021-12-18 16:11:44,776 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_hcd_stop [2021-12-18 16:11:44,776 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-18 16:11:44,776 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-18 16:11:44,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 16:11:44,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 16:11:44,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-12-18 16:11:44,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-12-18 16:11:44,776 INFO L130 BoogieDeclarations]: Found specification of procedure dev_remove_pack [2021-12-18 16:11:44,776 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_remove_pack [2021-12-18 16:11:44,776 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2021-12-18 16:11:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2021-12-18 16:11:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure oz_alloc_urb_link [2021-12-18 16:11:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_alloc_urb_link [2021-12-18 16:11:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_port_lock_of_oz_port [2021-12-18 16:11:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_port_lock_of_oz_port [2021-12-18 16:11:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure oz_clean_endpoints_for_config [2021-12-18 16:11:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_clean_endpoints_for_config [2021-12-18 16:11:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure oz_hcd_private [2021-12-18 16:11:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure oz_hcd_private [2021-12-18 16:11:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 16:11:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 16:11:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 16:11:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2021-12-18 16:11:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2021-12-18 16:11:45,731 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 16:11:45,734 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 16:11:45,865 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 16:11:49,934 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 16:11:49,948 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 16:11:49,949 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-12-18 16:11:49,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:11:49 BoogieIcfgContainer [2021-12-18 16:11:49,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 16:11:49,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 16:11:49,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 16:11:49,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 16:11:49,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 04:11:37" (1/3) ... [2021-12-18 16:11:49,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb96f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:11:49, skipping insertion in model container [2021-12-18 16:11:49,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:11:44" (2/3) ... [2021-12-18 16:11:49,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb96f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:11:49, skipping insertion in model container [2021-12-18 16:11:49,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:11:49" (3/3) ... [2021-12-18 16:11:49,957 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--staging--ozwpan--ozwpan.ko.cil.i [2021-12-18 16:11:49,961 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 16:11:49,961 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2021-12-18 16:11:49,999 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 16:11:50,003 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=PETRI_NET, 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 [2021-12-18 16:11:50,003 INFO L340 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2021-12-18 16:11:50,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 3656 states, 2410 states have (on average 1.3406639004149377) internal successors, (3231), 2552 states have internal predecessors, (3231), 991 states have call successors, (991), 227 states have call predecessors, (991), 226 states have return successors, (983), 956 states have call predecessors, (983), 983 states have call successors, (983) [2021-12-18 16:11:50,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-18 16:11:50,054 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:11:50,055 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:11:50,055 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_fs_char_dev__double_registrationErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:11:50,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:11:50,058 INFO L85 PathProgramCache]: Analyzing trace with hash 818745350, now seen corresponding path program 1 times [2021-12-18 16:11:50,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:11:50,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925755752] [2021-12-18 16:11:50,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:11:50,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:11:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:11:50,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:11:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:11:50,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:11:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:11:50,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 16:11:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:11:50,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:11:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:11:50,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:11:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:11:50,604 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 16:11:50,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:11:50,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925755752] [2021-12-18 16:11:50,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925755752] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:11:50,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:11:50,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:11:50,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531071425] [2021-12-18 16:11:50,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:11:50,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:11:50,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:11:50,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:11:50,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:11:50,647 INFO L87 Difference]: Start difference. First operand has 3656 states, 2410 states have (on average 1.3406639004149377) internal successors, (3231), 2552 states have internal predecessors, (3231), 991 states have call successors, (991), 227 states have call predecessors, (991), 226 states have return successors, (983), 956 states have call predecessors, (983), 983 states have call successors, (983) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 16:11:57,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:11:59,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:12:01,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:12:10,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:12:12,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:12:14,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:12:16,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:12:18,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:12:20,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:12:22,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:12:24,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:12:26,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:12:27,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:27,904 INFO L93 Difference]: Finished difference Result 11256 states and 16981 transitions. [2021-12-18 16:12:27,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:12:27,907 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2021-12-18 16:12:27,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:27,967 INFO L225 Difference]: With dead ends: 11256 [2021-12-18 16:12:27,968 INFO L226 Difference]: Without dead ends: 7591 [2021-12-18 16:12:28,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:12:28,006 INFO L933 BasicCegarLoop]: 9240 mSDtfsCounter, 5259 mSDsluCounter, 23998 mSDsCounter, 0 mSdLazyCounter, 8123 mSolverCounterSat, 1870 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6078 SdHoareTripleChecker+Valid, 33238 SdHoareTripleChecker+Invalid, 10005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1870 IncrementalHoareTripleChecker+Valid, 8123 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.5s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:28,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6078 Valid, 33238 Invalid, 10005 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1870 Valid, 8123 Invalid, 12 Unknown, 0 Unchecked, 36.5s Time] [2021-12-18 16:12:28,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7591 states. [2021-12-18 16:12:28,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7591 to 6916. [2021-12-18 16:12:28,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6916 states, 4542 states have (on average 1.3113166006164685) internal successors, (5956), 4753 states have internal predecessors, (5956), 1899 states have call successors, (1899), 442 states have call predecessors, (1899), 441 states have return successors, (1897), 1870 states have call predecessors, (1897), 1897 states have call successors, (1897) [2021-12-18 16:12:28,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6916 states to 6916 states and 9752 transitions. [2021-12-18 16:12:28,359 INFO L78 Accepts]: Start accepts. Automaton has 6916 states and 9752 transitions. Word has length 37 [2021-12-18 16:12:28,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:28,360 INFO L470 AbstractCegarLoop]: Abstraction has 6916 states and 9752 transitions. [2021-12-18 16:12:28,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 16:12:28,361 INFO L276 IsEmpty]: Start isEmpty. Operand 6916 states and 9752 transitions. [2021-12-18 16:12:28,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-18 16:12:28,363 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:28,363 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-18 16:12:28,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 16:12:28,365 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:12:28,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:28,365 INFO L85 PathProgramCache]: Analyzing trace with hash -313051600, now seen corresponding path program 1 times [2021-12-18 16:12:28,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:28,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006422348] [2021-12-18 16:12:28,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:28,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:28,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:28,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:12:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:28,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 16:12:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:28,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:28,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:28,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:12:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:28,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:28,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:28,769 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-18 16:12:28,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:28,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006422348] [2021-12-18 16:12:28,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006422348] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:28,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:28,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:12:28,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441865910] [2021-12-18 16:12:28,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:28,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:12:28,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:28,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:12:28,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:12:28,772 INFO L87 Difference]: Start difference. First operand 6916 states and 9752 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-18 16:12:35,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:35,957 INFO L93 Difference]: Finished difference Result 7492 states and 10739 transitions. [2021-12-18 16:12:35,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 16:12:35,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2021-12-18 16:12:35,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:35,989 INFO L225 Difference]: With dead ends: 7492 [2021-12-18 16:12:35,990 INFO L226 Difference]: Without dead ends: 7490 [2021-12-18 16:12:35,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:12:35,993 INFO L933 BasicCegarLoop]: 4614 mSDtfsCounter, 5249 mSDsluCounter, 9977 mSDsCounter, 0 mSdLazyCounter, 3701 mSolverCounterSat, 1833 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5847 SdHoareTripleChecker+Valid, 14591 SdHoareTripleChecker+Invalid, 5534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1833 IncrementalHoareTripleChecker+Valid, 3701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:35,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5847 Valid, 14591 Invalid, 5534 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1833 Valid, 3701 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-12-18 16:12:36,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7490 states. [2021-12-18 16:12:36,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7490 to 6914. [2021-12-18 16:12:36,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6914 states, 4541 states have (on average 1.3109447258313147) internal successors, (5953), 4751 states have internal predecessors, (5953), 1899 states have call successors, (1899), 442 states have call predecessors, (1899), 441 states have return successors, (1897), 1870 states have call predecessors, (1897), 1897 states have call successors, (1897) [2021-12-18 16:12:36,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6914 states to 6914 states and 9749 transitions. [2021-12-18 16:12:36,228 INFO L78 Accepts]: Start accepts. Automaton has 6914 states and 9749 transitions. Word has length 56 [2021-12-18 16:12:36,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:36,229 INFO L470 AbstractCegarLoop]: Abstraction has 6914 states and 9749 transitions. [2021-12-18 16:12:36,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-18 16:12:36,229 INFO L276 IsEmpty]: Start isEmpty. Operand 6914 states and 9749 transitions. [2021-12-18 16:12:36,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-18 16:12:36,236 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:36,237 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:12:36,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 16:12:36,237 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:12:36,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:36,238 INFO L85 PathProgramCache]: Analyzing trace with hash -212774498, now seen corresponding path program 1 times [2021-12-18 16:12:36,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:36,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833937897] [2021-12-18 16:12:36,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:36,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:36,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:36,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:12:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:36,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 16:12:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:36,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:36,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:36,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:12:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:36,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:36,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:36,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 16:12:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:36,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 16:12:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:36,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:36,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:36,559 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-18 16:12:36,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:36,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833937897] [2021-12-18 16:12:36,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833937897] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:36,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:36,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:12:36,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158241777] [2021-12-18 16:12:36,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:36,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:12:36,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:36,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:12:36,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:12:36,561 INFO L87 Difference]: Start difference. First operand 6914 states and 9749 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 16:12:41,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:12:43,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:12:50,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:50,560 INFO L93 Difference]: Finished difference Result 8614 states and 12632 transitions. [2021-12-18 16:12:50,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 16:12:50,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2021-12-18 16:12:50,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:50,598 INFO L225 Difference]: With dead ends: 8614 [2021-12-18 16:12:50,598 INFO L226 Difference]: Without dead ends: 8612 [2021-12-18 16:12:50,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:12:50,603 INFO L933 BasicCegarLoop]: 4657 mSDtfsCounter, 6828 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 6016 mSolverCounterSat, 4105 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7460 SdHoareTripleChecker+Valid, 16442 SdHoareTripleChecker+Invalid, 10123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4105 IncrementalHoareTripleChecker+Valid, 6016 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:50,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7460 Valid, 16442 Invalid, 10123 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4105 Valid, 6016 Invalid, 2 Unknown, 0 Unchecked, 13.5s Time] [2021-12-18 16:12:50,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8612 states. [2021-12-18 16:12:50,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8612 to 7026. [2021-12-18 16:12:50,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7026 states, 4617 states have (on average 1.3066926575698505) internal successors, (6033), 4827 states have internal predecessors, (6033), 1905 states have call successors, (1905), 472 states have call predecessors, (1905), 471 states have return successors, (1903), 1876 states have call predecessors, (1903), 1903 states have call successors, (1903) [2021-12-18 16:12:50,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7026 states to 7026 states and 9841 transitions. [2021-12-18 16:12:50,854 INFO L78 Accepts]: Start accepts. Automaton has 7026 states and 9841 transitions. Word has length 91 [2021-12-18 16:12:50,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:50,854 INFO L470 AbstractCegarLoop]: Abstraction has 7026 states and 9841 transitions. [2021-12-18 16:12:50,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 16:12:50,855 INFO L276 IsEmpty]: Start isEmpty. Operand 7026 states and 9841 transitions. [2021-12-18 16:12:50,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-18 16:12:50,858 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:50,858 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:12:50,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 16:12:50,859 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:12:50,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:50,860 INFO L85 PathProgramCache]: Analyzing trace with hash -347895653, now seen corresponding path program 1 times [2021-12-18 16:12:50,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:50,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420492842] [2021-12-18 16:12:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:50,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:12:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 16:12:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:12:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 16:12:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 16:12:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 16:12:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 16:12:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:12:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:12:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 16:12:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:51,197 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-12-18 16:12:51,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:51,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420492842] [2021-12-18 16:12:51,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420492842] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:51,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:51,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 16:12:51,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542161157] [2021-12-18 16:12:51,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:51,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 16:12:51,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:51,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 16:12:51,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:12:51,200 INFO L87 Difference]: Start difference. First operand 7026 states and 9841 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-18 16:12:57,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:12:59,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:13:01,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:13:03,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:13:14,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:14,868 INFO L93 Difference]: Finished difference Result 15322 states and 22289 transitions. [2021-12-18 16:13:14,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-18 16:13:14,868 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 125 [2021-12-18 16:13:14,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:14,907 INFO L225 Difference]: With dead ends: 15322 [2021-12-18 16:13:14,907 INFO L226 Difference]: Without dead ends: 9278 [2021-12-18 16:13:14,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-12-18 16:13:14,929 INFO L933 BasicCegarLoop]: 4392 mSDtfsCounter, 5084 mSDsluCounter, 8597 mSDsCounter, 0 mSdLazyCounter, 13201 mSolverCounterSat, 5070 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5466 SdHoareTripleChecker+Valid, 12989 SdHoareTripleChecker+Invalid, 18275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5070 IncrementalHoareTripleChecker+Valid, 13201 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:14,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5466 Valid, 12989 Invalid, 18275 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5070 Valid, 13201 Invalid, 4 Unknown, 0 Unchecked, 22.9s Time] [2021-12-18 16:13:14,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9278 states. [2021-12-18 16:13:15,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9278 to 7040. [2021-12-18 16:13:15,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7040 states, 4625 states have (on average 1.307027027027027) internal successors, (6045), 4835 states have internal predecessors, (6045), 1909 states have call successors, (1909), 474 states have call predecessors, (1909), 473 states have return successors, (1907), 1880 states have call predecessors, (1907), 1907 states have call successors, (1907) [2021-12-18 16:13:15,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 9861 transitions. [2021-12-18 16:13:15,205 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 9861 transitions. Word has length 125 [2021-12-18 16:13:15,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:15,206 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 9861 transitions. [2021-12-18 16:13:15,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-18 16:13:15,207 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 9861 transitions. [2021-12-18 16:13:15,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-18 16:13:15,211 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:15,212 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:13:15,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 16:13:15,212 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:13:15,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:15,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1103630849, now seen corresponding path program 1 times [2021-12-18 16:13:15,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:15,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12670699] [2021-12-18 16:13:15,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:15,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:13:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 16:13:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:13:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 16:13:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 16:13:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 16:13:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:13:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:13:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 16:13:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-12-18 16:13:15,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:15,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12670699] [2021-12-18 16:13:15,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12670699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:15,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:15,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 16:13:15,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868572048] [2021-12-18 16:13:15,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:15,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 16:13:15,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:15,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 16:13:15,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:13:15,612 INFO L87 Difference]: Start difference. First operand 7040 states and 9861 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 16:13:28,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:13:30,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:13:32,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:13:35,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:13:37,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:13:40,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:13:42,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:42,782 INFO L93 Difference]: Finished difference Result 9280 states and 13869 transitions. [2021-12-18 16:13:42,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-18 16:13:42,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 115 [2021-12-18 16:13:42,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:42,817 INFO L225 Difference]: With dead ends: 9280 [2021-12-18 16:13:42,818 INFO L226 Difference]: Without dead ends: 9278 [2021-12-18 16:13:42,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2021-12-18 16:13:42,823 INFO L933 BasicCegarLoop]: 4437 mSDtfsCounter, 5198 mSDsluCounter, 12794 mSDsCounter, 0 mSdLazyCounter, 12700 mSolverCounterSat, 5126 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5578 SdHoareTripleChecker+Valid, 17231 SdHoareTripleChecker+Invalid, 17832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5126 IncrementalHoareTripleChecker+Valid, 12700 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.4s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:42,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5578 Valid, 17231 Invalid, 17832 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5126 Valid, 12700 Invalid, 6 Unknown, 0 Unchecked, 26.4s Time] [2021-12-18 16:13:42,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9278 states. [2021-12-18 16:13:43,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9278 to 7040. [2021-12-18 16:13:43,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7040 states, 4625 states have (on average 1.3065945945945947) internal successors, (6043), 4835 states have internal predecessors, (6043), 1909 states have call successors, (1909), 474 states have call predecessors, (1909), 473 states have return successors, (1907), 1880 states have call predecessors, (1907), 1907 states have call successors, (1907) [2021-12-18 16:13:43,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 9859 transitions. [2021-12-18 16:13:43,077 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 9859 transitions. Word has length 115 [2021-12-18 16:13:43,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:43,079 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 9859 transitions. [2021-12-18 16:13:43,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 16:13:43,079 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 9859 transitions. [2021-12-18 16:13:43,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-18 16:13:43,081 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:43,081 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2021-12-18 16:13:43,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 16:13:43,081 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:13:43,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:43,082 INFO L85 PathProgramCache]: Analyzing trace with hash -886685540, now seen corresponding path program 1 times [2021-12-18 16:13:43,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:43,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651310517] [2021-12-18 16:13:43,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:43,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:43,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:13:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 16:13:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:13:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 16:13:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 16:13:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 16:13:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:13:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 16:13:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:13:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:43,484 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-18 16:13:43,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:43,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651310517] [2021-12-18 16:13:43,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651310517] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 16:13:43,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141929829] [2021-12-18 16:13:43,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:43,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:13:43,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:13:43,486 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:13:43,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 16:13:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:44,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 3995 conjuncts, 30 conjunts are in the unsatisfiable core [2021-12-18 16:13:44,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:13:44,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 16:13:44,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 16:13:45,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 16:13:45,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-18 16:13:45,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-18 16:13:45,521 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-18 16:13:45,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 16:13:45,600 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_116 (Array Int Int)) (|v_ULTIMATE.start___skb_queue_head_init_~list#1.base_3| Int)) (or (< |v_ULTIMATE.start___skb_queue_head_init_~list#1.base_3| |c_ULTIMATE.start_skb_queue_head_init_~list#1.base|) (not (= 42 (select (select (store |c_#memory_int| |v_ULTIMATE.start___skb_queue_head_init_~list#1.base_3| v_ArrVal_116) |c_ULTIMATE.start_oz_protocol_init_~devs#1.base|) |c_ULTIMATE.start_oz_protocol_init_~devs#1.offset|))))) is different from false [2021-12-18 16:13:45,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141929829] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 16:13:45,618 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 16:13:45,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-12-18 16:13:45,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962770360] [2021-12-18 16:13:45,618 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 16:13:45,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-18 16:13:45,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:45,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-18 16:13:45,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=295, Unknown=1, NotChecked=34, Total=380 [2021-12-18 16:13:45,620 INFO L87 Difference]: Start difference. First operand 7040 states and 9859 transitions. Second operand has 17 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 13 states have internal predecessors, (118), 6 states have call successors, (31), 8 states have call predecessors, (31), 8 states have return successors, (29), 8 states have call predecessors, (29), 6 states have call successors, (29) [2021-12-18 16:14:16,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:18,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:20,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:22,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:24,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:26,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:29,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:31,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:33,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:35,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:37,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:39,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:41,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:43,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:45,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:47,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:49,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:52,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:14:59,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:14:59,922 INFO L93 Difference]: Finished difference Result 26521 states and 37935 transitions. [2021-12-18 16:14:59,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-12-18 16:14:59,923 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 13 states have internal predecessors, (118), 6 states have call successors, (31), 8 states have call predecessors, (31), 8 states have return successors, (29), 8 states have call predecessors, (29), 6 states have call successors, (29) Word has length 125 [2021-12-18 16:14:59,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:14:59,993 INFO L225 Difference]: With dead ends: 26521 [2021-12-18 16:14:59,993 INFO L226 Difference]: Without dead ends: 20365 [2021-12-18 16:15:00,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=365, Invalid=1894, Unknown=1, NotChecked=92, Total=2352 [2021-12-18 16:15:00,019 INFO L933 BasicCegarLoop]: 6389 mSDtfsCounter, 13278 mSDsluCounter, 41138 mSDsCounter, 0 mSdLazyCounter, 33900 mSolverCounterSat, 10565 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14294 SdHoareTripleChecker+Valid, 47527 SdHoareTripleChecker+Invalid, 44481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 10565 IncrementalHoareTripleChecker+Valid, 33900 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:15:00,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14294 Valid, 47527 Invalid, 44481 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [10565 Valid, 33900 Invalid, 16 Unknown, 0 Unchecked, 72.0s Time] [2021-12-18 16:15:00,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20365 states. [2021-12-18 16:15:00,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20365 to 15298. [2021-12-18 16:15:00,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15298 states, 10012 states have (on average 1.2900519376747903) internal successors, (12916), 10415 states have internal predecessors, (12916), 4078 states have call successors, (4078), 1129 states have call predecessors, (4078), 1175 states have return successors, (4249), 4021 states have call predecessors, (4249), 4076 states have call successors, (4249) [2021-12-18 16:15:00,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15298 states to 15298 states and 21243 transitions. [2021-12-18 16:15:00,714 INFO L78 Accepts]: Start accepts. Automaton has 15298 states and 21243 transitions. Word has length 125 [2021-12-18 16:15:00,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:15:00,715 INFO L470 AbstractCegarLoop]: Abstraction has 15298 states and 21243 transitions. [2021-12-18 16:15:00,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 13 states have internal predecessors, (118), 6 states have call successors, (31), 8 states have call predecessors, (31), 8 states have return successors, (29), 8 states have call predecessors, (29), 6 states have call successors, (29) [2021-12-18 16:15:00,715 INFO L276 IsEmpty]: Start isEmpty. Operand 15298 states and 21243 transitions. [2021-12-18 16:15:00,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-12-18 16:15:00,718 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:15:00,719 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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] [2021-12-18 16:15:00,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 16:15:00,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-18 16:15:00,935 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:15:00,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:15:00,936 INFO L85 PathProgramCache]: Analyzing trace with hash 236886578, now seen corresponding path program 1 times [2021-12-18 16:15:00,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:15:00,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13821720] [2021-12-18 16:15:00,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:15:00,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:15:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:15:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:15:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:15:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:15:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:15:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:15:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:15:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 16:15:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:15:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:15:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:15:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:15:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 16:15:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 16:15:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-18 16:15:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:01,316 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-12-18 16:15:01,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:15:01,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13821720] [2021-12-18 16:15:01,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13821720] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:15:01,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:15:01,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 16:15:01,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202794763] [2021-12-18 16:15:01,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:15:01,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 16:15:01,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:15:01,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 16:15:01,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:15:01,318 INFO L87 Difference]: Start difference. First operand 15298 states and 21243 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 16:15:10,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:15:12,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:15:14,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:15:16,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:15:18,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:15:31,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:15:31,860 INFO L93 Difference]: Finished difference Result 34581 states and 49498 transitions. [2021-12-18 16:15:31,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-18 16:15:31,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) Word has length 142 [2021-12-18 16:15:31,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:15:31,965 INFO L225 Difference]: With dead ends: 34581 [2021-12-18 16:15:31,965 INFO L226 Difference]: Without dead ends: 27211 [2021-12-18 16:15:31,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2021-12-18 16:15:32,000 INFO L933 BasicCegarLoop]: 5312 mSDtfsCounter, 9194 mSDsluCounter, 25594 mSDsCounter, 0 mSdLazyCounter, 13664 mSolverCounterSat, 6540 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10124 SdHoareTripleChecker+Valid, 30906 SdHoareTripleChecker+Invalid, 20208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6540 IncrementalHoareTripleChecker+Valid, 13664 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2021-12-18 16:15:32,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10124 Valid, 30906 Invalid, 20208 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6540 Valid, 13664 Invalid, 4 Unknown, 0 Unchecked, 28.8s Time] [2021-12-18 16:15:32,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27211 states. [2021-12-18 16:15:33,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27211 to 22218. [2021-12-18 16:15:33,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22218 states, 14550 states have (on average 1.290446735395189) internal successors, (18776), 15111 states have internal predecessors, (18776), 5920 states have call successors, (5920), 1643 states have call predecessors, (5920), 1715 states have return successors, (6183), 5843 states have call predecessors, (6183), 5918 states have call successors, (6183) [2021-12-18 16:15:33,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22218 states to 22218 states and 30879 transitions. [2021-12-18 16:15:33,149 INFO L78 Accepts]: Start accepts. Automaton has 22218 states and 30879 transitions. Word has length 142 [2021-12-18 16:15:33,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:15:33,149 INFO L470 AbstractCegarLoop]: Abstraction has 22218 states and 30879 transitions. [2021-12-18 16:15:33,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 16:15:33,150 INFO L276 IsEmpty]: Start isEmpty. Operand 22218 states and 30879 transitions. [2021-12-18 16:15:33,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-18 16:15:33,154 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:15:33,154 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 16:15:33,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 16:15:33,155 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_fs_char_dev_unregister_chrdev_regionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:15:33,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:15:33,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1114056958, now seen corresponding path program 1 times [2021-12-18 16:15:33,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:15:33,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187296293] [2021-12-18 16:15:33,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:15:33,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:15:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:15:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:15:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 16:15:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:15:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:15:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:15:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 16:15:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 16:15:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:15:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:15:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:15:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:15:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:15:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 16:15:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:15:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:15:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 16:15:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 16:15:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 16:15:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 16:15:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 16:15:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 16:15:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 16:15:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:33,703 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-18 16:15:33,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:15:33,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187296293] [2021-12-18 16:15:33,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187296293] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:15:33,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:15:33,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:15:33,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687184018] [2021-12-18 16:15:33,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:15:33,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:15:33,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:15:33,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:15:33,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:15:33,706 INFO L87 Difference]: Start difference. First operand 22218 states and 30879 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 16:15:44,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:15:44,740 INFO L93 Difference]: Finished difference Result 45391 states and 65214 transitions. [2021-12-18 16:15:44,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:15:44,740 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 172 [2021-12-18 16:15:44,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:15:44,845 INFO L225 Difference]: With dead ends: 45391 [2021-12-18 16:15:44,846 INFO L226 Difference]: Without dead ends: 23226 [2021-12-18 16:15:44,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:15:44,928 INFO L933 BasicCegarLoop]: 4724 mSDtfsCounter, 4058 mSDsluCounter, 11905 mSDsCounter, 0 mSdLazyCounter, 5766 mSolverCounterSat, 4426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4241 SdHoareTripleChecker+Valid, 16629 SdHoareTripleChecker+Invalid, 10192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4426 IncrementalHoareTripleChecker+Valid, 5766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-12-18 16:15:44,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4241 Valid, 16629 Invalid, 10192 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4426 Valid, 5766 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2021-12-18 16:15:44,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23226 states. [2021-12-18 16:15:45,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23226 to 18586. [2021-12-18 16:15:45,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18586 states, 12276 states have (on average 1.310198761811665) internal successors, (16084), 12752 states have internal predecessors, (16084), 5019 states have call successors, (5019), 1251 states have call predecessors, (5019), 1258 states have return successors, (5061), 4958 states have call predecessors, (5061), 5017 states have call successors, (5061) [2021-12-18 16:15:45,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18586 states to 18586 states and 26164 transitions. [2021-12-18 16:15:45,840 INFO L78 Accepts]: Start accepts. Automaton has 18586 states and 26164 transitions. Word has length 172 [2021-12-18 16:15:45,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:15:45,841 INFO L470 AbstractCegarLoop]: Abstraction has 18586 states and 26164 transitions. [2021-12-18 16:15:45,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 16:15:45,841 INFO L276 IsEmpty]: Start isEmpty. Operand 18586 states and 26164 transitions. [2021-12-18 16:15:45,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-18 16:15:45,844 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:15:45,844 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 16:15:45,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 16:15:45,844 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_fs_char_dev_unregister_chrdev_regionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:15:45,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:15:45,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2138762102, now seen corresponding path program 1 times [2021-12-18 16:15:45,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:15:45,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860949746] [2021-12-18 16:15:45,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:15:45,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:15:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:15:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:15:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:15:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:15:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:15:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:15:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:15:46,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 16:15:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:15:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:15:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 16:15:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:15:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:15:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 16:15:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:15:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:15:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 16:15:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-18 16:15:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 16:15:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 16:15:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 16:15:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 16:15:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 16:15:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:46,434 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-18 16:15:46,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:15:46,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860949746] [2021-12-18 16:15:46,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860949746] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 16:15:46,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699576770] [2021-12-18 16:15:46,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:15:46,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:15:46,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:15:46,436 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:15:46,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 16:15:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:47,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 4190 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-18 16:15:47,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:15:47,906 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-12-18 16:15:47,906 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:15:47,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699576770] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:15:47,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 16:15:47,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2021-12-18 16:15:47,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172570995] [2021-12-18 16:15:47,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:15:47,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-18 16:15:47,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:15:47,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-18 16:15:47,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2021-12-18 16:15:47,907 INFO L87 Difference]: Start difference. First operand 18586 states and 26164 transitions. Second operand has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 11 states have internal predecessors, (75), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-18 16:15:51,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:15:51,417 INFO L93 Difference]: Finished difference Result 43890 states and 63246 transitions. [2021-12-18 16:15:51,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 16:15:51,418 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 11 states have internal predecessors, (75), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) Word has length 173 [2021-12-18 16:15:51,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:15:51,515 INFO L225 Difference]: With dead ends: 43890 [2021-12-18 16:15:51,515 INFO L226 Difference]: Without dead ends: 25371 [2021-12-18 16:15:51,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=659, Unknown=0, NotChecked=0, Total=756 [2021-12-18 16:15:51,573 INFO L933 BasicCegarLoop]: 5743 mSDtfsCounter, 5452 mSDsluCounter, 63048 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 1683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5773 SdHoareTripleChecker+Valid, 68791 SdHoareTripleChecker+Invalid, 3145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1683 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:15:51,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5773 Valid, 68791 Invalid, 3145 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1683 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-18 16:15:51,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25371 states. [2021-12-18 16:15:52,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25371 to 18598. [2021-12-18 16:15:52,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18598 states, 12286 states have (on average 1.3099462803190622) internal successors, (16094), 12760 states have internal predecessors, (16094), 5021 states have call successors, (5021), 1251 states have call predecessors, (5021), 1258 states have return successors, (5063), 4960 states have call predecessors, (5063), 5019 states have call successors, (5063) [2021-12-18 16:15:52,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18598 states to 18598 states and 26178 transitions. [2021-12-18 16:15:52,484 INFO L78 Accepts]: Start accepts. Automaton has 18598 states and 26178 transitions. Word has length 173 [2021-12-18 16:15:52,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:15:52,485 INFO L470 AbstractCegarLoop]: Abstraction has 18598 states and 26178 transitions. [2021-12-18 16:15:52,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 11 states have internal predecessors, (75), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-18 16:15:52,485 INFO L276 IsEmpty]: Start isEmpty. Operand 18598 states and 26178 transitions. [2021-12-18 16:15:52,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-18 16:15:52,491 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:15:52,491 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 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, 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] [2021-12-18 16:15:52,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-18 16:15:52,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-18 16:15:52,703 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:15:52,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:15:52,704 INFO L85 PathProgramCache]: Analyzing trace with hash -663880108, now seen corresponding path program 1 times [2021-12-18 16:15:52,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:15:52,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168214395] [2021-12-18 16:15:52,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:15:52,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:15:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:15:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:15:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:15:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:15:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:15:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:15:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:15:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 16:15:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:15:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:15:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:15:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:52,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:15:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:53,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:53,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:15:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:53,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:15:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:53,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:15:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:53,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:15:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:53,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 16:15:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:53,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:15:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:53,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 16:15:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:15:53,147 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-12-18 16:15:53,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:15:53,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168214395] [2021-12-18 16:15:53,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168214395] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:15:53,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:15:53,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 16:15:53,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174234930] [2021-12-18 16:15:53,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:15:53,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 16:15:53,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:15:53,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 16:15:53,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:15:53,150 INFO L87 Difference]: Start difference. First operand 18598 states and 26178 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 16:16:05,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:16:07,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:16:09,547 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:16:11,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:16:13,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:16:15,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:16:18,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:16:18,495 INFO L93 Difference]: Finished difference Result 41733 states and 60730 transitions. [2021-12-18 16:16:18,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 16:16:18,496 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2021-12-18 16:16:18,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:16:18,589 INFO L225 Difference]: With dead ends: 41733 [2021-12-18 16:16:18,590 INFO L226 Difference]: Without dead ends: 23236 [2021-12-18 16:16:18,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:16:18,661 INFO L933 BasicCegarLoop]: 4669 mSDtfsCounter, 6874 mSDsluCounter, 14032 mSDsCounter, 0 mSdLazyCounter, 8935 mSolverCounterSat, 4030 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7600 SdHoareTripleChecker+Valid, 18701 SdHoareTripleChecker+Invalid, 12971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4030 IncrementalHoareTripleChecker+Valid, 8935 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2021-12-18 16:16:18,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7600 Valid, 18701 Invalid, 12971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4030 Valid, 8935 Invalid, 6 Unknown, 0 Unchecked, 23.9s Time] [2021-12-18 16:16:18,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23236 states. [2021-12-18 16:16:19,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23236 to 18598. [2021-12-18 16:16:19,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18598 states, 12286 states have (on average 1.3094579195832654) internal successors, (16088), 12760 states have internal predecessors, (16088), 5021 states have call successors, (5021), 1251 states have call predecessors, (5021), 1258 states have return successors, (5063), 4960 states have call predecessors, (5063), 5019 states have call successors, (5063) [2021-12-18 16:16:19,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18598 states to 18598 states and 26172 transitions. [2021-12-18 16:16:19,585 INFO L78 Accepts]: Start accepts. Automaton has 18598 states and 26172 transitions. Word has length 158 [2021-12-18 16:16:19,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:16:19,585 INFO L470 AbstractCegarLoop]: Abstraction has 18598 states and 26172 transitions. [2021-12-18 16:16:19,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 16:16:19,585 INFO L276 IsEmpty]: Start isEmpty. Operand 18598 states and 26172 transitions. [2021-12-18 16:16:19,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-18 16:16:19,588 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:16:19,588 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 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, 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] [2021-12-18 16:16:19,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 16:16:19,589 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:16:19,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:16:19,589 INFO L85 PathProgramCache]: Analyzing trace with hash -663820526, now seen corresponding path program 1 times [2021-12-18 16:16:19,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:16:19,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190465059] [2021-12-18 16:16:19,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:16:19,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:16:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:16:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:16:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:16:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:16:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:16:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:16:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:16:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 16:16:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:16:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:16:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:16:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:16:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:16:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:16:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:16:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 16:16:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:16:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 16:16:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:19,850 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-12-18 16:16:19,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:16:19,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190465059] [2021-12-18 16:16:19,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190465059] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:16:19,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:16:19,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:16:19,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55713792] [2021-12-18 16:16:19,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:16:19,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:16:19,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:16:19,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:16:19,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:16:19,852 INFO L87 Difference]: Start difference. First operand 18598 states and 26172 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-18 16:16:29,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:16:29,888 INFO L93 Difference]: Finished difference Result 23236 states and 34236 transitions. [2021-12-18 16:16:29,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:16:29,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 158 [2021-12-18 16:16:29,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:16:29,981 INFO L225 Difference]: With dead ends: 23236 [2021-12-18 16:16:29,981 INFO L226 Difference]: Without dead ends: 23234 [2021-12-18 16:16:29,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:16:29,999 INFO L933 BasicCegarLoop]: 4680 mSDtfsCounter, 2589 mSDsluCounter, 11778 mSDsCounter, 0 mSdLazyCounter, 5704 mSolverCounterSat, 2850 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2775 SdHoareTripleChecker+Valid, 16458 SdHoareTripleChecker+Invalid, 8554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2850 IncrementalHoareTripleChecker+Valid, 5704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:16:29,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2775 Valid, 16458 Invalid, 8554 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2850 Valid, 5704 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2021-12-18 16:16:30,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23234 states. [2021-12-18 16:16:30,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23234 to 18596. [2021-12-18 16:16:30,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18596 states, 12285 states have (on average 1.308994708994709) internal successors, (16081), 12758 states have internal predecessors, (16081), 5021 states have call successors, (5021), 1251 states have call predecessors, (5021), 1258 states have return successors, (5063), 4960 states have call predecessors, (5063), 5019 states have call successors, (5063) [2021-12-18 16:16:30,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18596 states to 18596 states and 26165 transitions. [2021-12-18 16:16:30,922 INFO L78 Accepts]: Start accepts. Automaton has 18596 states and 26165 transitions. Word has length 158 [2021-12-18 16:16:30,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:16:30,923 INFO L470 AbstractCegarLoop]: Abstraction has 18596 states and 26165 transitions. [2021-12-18 16:16:30,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-18 16:16:30,924 INFO L276 IsEmpty]: Start isEmpty. Operand 18596 states and 26165 transitions. [2021-12-18 16:16:30,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-18 16:16:30,926 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:16:30,926 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 16:16:30,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 16:16:30,927 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_fs_char_dev_unregister_chrdev_regionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:16:30,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:16:30,927 INFO L85 PathProgramCache]: Analyzing trace with hash 2098489646, now seen corresponding path program 1 times [2021-12-18 16:16:30,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:16:30,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543776467] [2021-12-18 16:16:30,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:16:30,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:16:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:16:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:16:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:16:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:16:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:16:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:16:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 16:16:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 16:16:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 16:16:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:16:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:16:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:16:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:16:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:16:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 16:16:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:16:31,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:16:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-18 16:16:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 16:16:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 16:16:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 16:16:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 16:16:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 16:16:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 16:16:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:31,355 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-18 16:16:31,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:16:31,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543776467] [2021-12-18 16:16:31,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543776467] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 16:16:31,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588527319] [2021-12-18 16:16:31,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:16:31,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:16:31,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:16:31,357 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:16:31,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 16:16:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:32,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 4200 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-18 16:16:32,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:16:32,646 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-12-18 16:16:32,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:16:32,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588527319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:16:32,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 16:16:32,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 16 [2021-12-18 16:16:32,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783961337] [2021-12-18 16:16:32,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:16:32,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:16:32,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:16:32,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:16:32,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2021-12-18 16:16:32,648 INFO L87 Difference]: Start difference. First operand 18596 states and 26165 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2021-12-18 16:16:34,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:16:34,589 INFO L93 Difference]: Finished difference Result 29296 states and 41535 transitions. [2021-12-18 16:16:34,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:16:34,590 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) Word has length 178 [2021-12-18 16:16:34,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:16:34,653 INFO L225 Difference]: With dead ends: 29296 [2021-12-18 16:16:34,653 INFO L226 Difference]: Without dead ends: 19909 [2021-12-18 16:16:34,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2021-12-18 16:16:34,687 INFO L933 BasicCegarLoop]: 5947 mSDtfsCounter, 1861 mSDsluCounter, 28991 mSDsCounter, 0 mSdLazyCounter, 1100 mSolverCounterSat, 635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 34938 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 635 IncrementalHoareTripleChecker+Valid, 1100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-18 16:16:34,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1861 Valid, 34938 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [635 Valid, 1100 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-18 16:16:34,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19909 states. [2021-12-18 16:16:35,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19909 to 18169. [2021-12-18 16:16:35,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18169 states, 12016 states have (on average 1.3089214380825567) internal successors, (15728), 12468 states have internal predecessors, (15728), 4885 states have call successors, (4885), 1229 states have call predecessors, (4885), 1236 states have return successors, (4925), 4829 states have call predecessors, (4925), 4883 states have call successors, (4925) [2021-12-18 16:16:35,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18169 states to 18169 states and 25538 transitions. [2021-12-18 16:16:35,597 INFO L78 Accepts]: Start accepts. Automaton has 18169 states and 25538 transitions. Word has length 178 [2021-12-18 16:16:35,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:16:35,597 INFO L470 AbstractCegarLoop]: Abstraction has 18169 states and 25538 transitions. [2021-12-18 16:16:35,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2021-12-18 16:16:35,597 INFO L276 IsEmpty]: Start isEmpty. Operand 18169 states and 25538 transitions. [2021-12-18 16:16:35,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-12-18 16:16:35,600 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:16:35,600 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 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, 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] [2021-12-18 16:16:35,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 16:16:35,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:16:35,824 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:16:35,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:16:35,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1239728488, now seen corresponding path program 1 times [2021-12-18 16:16:35,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:16:35,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62307127] [2021-12-18 16:16:35,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:16:35,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:16:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:35,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:16:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:35,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:16:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:35,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:16:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:35,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:35,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:16:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:35,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:16:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:35,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:16:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:16:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 16:16:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:16:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:16:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:16:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:16:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:16:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:16:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:16:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 16:16:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:16:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 16:16:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-12-18 16:16:36,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:16:36,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62307127] [2021-12-18 16:16:36,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62307127] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:16:36,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:16:36,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 16:16:36,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958686671] [2021-12-18 16:16:36,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:16:36,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 16:16:36,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:16:36,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 16:16:36,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 16:16:36,149 INFO L87 Difference]: Start difference. First operand 18169 states and 25538 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 16:16:45,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:16:45,928 INFO L93 Difference]: Finished difference Result 40857 states and 59406 transitions. [2021-12-18 16:16:45,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 16:16:45,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 162 [2021-12-18 16:16:45,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:16:45,994 INFO L225 Difference]: With dead ends: 40857 [2021-12-18 16:16:45,994 INFO L226 Difference]: Without dead ends: 22767 [2021-12-18 16:16:46,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:16:46,045 INFO L933 BasicCegarLoop]: 4621 mSDtfsCounter, 6858 mSDsluCounter, 3785 mSDsCounter, 0 mSdLazyCounter, 3142 mSolverCounterSat, 4052 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7590 SdHoareTripleChecker+Valid, 8406 SdHoareTripleChecker+Invalid, 7194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4052 IncrementalHoareTripleChecker+Valid, 3142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-12-18 16:16:46,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7590 Valid, 8406 Invalid, 7194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4052 Valid, 3142 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2021-12-18 16:16:46,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22767 states. [2021-12-18 16:16:46,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22767 to 18155. [2021-12-18 16:16:46,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18155 states, 12003 states have (on average 1.308256269266017) internal successors, (15703), 12454 states have internal predecessors, (15703), 4885 states have call successors, (4885), 1229 states have call predecessors, (4885), 1236 states have return successors, (4925), 4829 states have call predecessors, (4925), 4883 states have call successors, (4925) [2021-12-18 16:16:46,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18155 states to 18155 states and 25513 transitions. [2021-12-18 16:16:47,000 INFO L78 Accepts]: Start accepts. Automaton has 18155 states and 25513 transitions. Word has length 162 [2021-12-18 16:16:47,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:16:47,000 INFO L470 AbstractCegarLoop]: Abstraction has 18155 states and 25513 transitions. [2021-12-18 16:16:47,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 16:16:47,000 INFO L276 IsEmpty]: Start isEmpty. Operand 18155 states and 25513 transitions. [2021-12-18 16:16:47,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-12-18 16:16:47,003 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:16:47,003 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 16:16:47,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 16:16:47,003 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_fs_char_dev_unregister_chrdev_regionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:16:47,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:16:47,004 INFO L85 PathProgramCache]: Analyzing trace with hash 502137074, now seen corresponding path program 1 times [2021-12-18 16:16:47,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:16:47,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043298156] [2021-12-18 16:16:47,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:16:47,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:16:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:16:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:16:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:16:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:16:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:16:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:16:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:16:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 16:16:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:16:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 16:16:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:16:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:16:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:16:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:16:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:16:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 16:16:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:16:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:16:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:16:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 16:16:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 16:16:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 16:16:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 16:16:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 16:16:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 16:16:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 16:16:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:16:47,311 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2021-12-18 16:16:47,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:16:47,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043298156] [2021-12-18 16:16:47,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043298156] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:16:47,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:16:47,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:16:47,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722124966] [2021-12-18 16:16:47,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:16:47,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:16:47,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:16:47,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:16:47,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:16:47,314 INFO L87 Difference]: Start difference. First operand 18155 states and 25513 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:16:54,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:16:56,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:16:59,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:17:12,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:17:12,664 INFO L93 Difference]: Finished difference Result 22879 states and 33616 transitions. [2021-12-18 16:17:12,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 16:17:12,664 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (23), 5 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 184 [2021-12-18 16:17:12,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:17:12,748 INFO L225 Difference]: With dead ends: 22879 [2021-12-18 16:17:12,748 INFO L226 Difference]: Without dead ends: 22877 [2021-12-18 16:17:12,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-18 16:17:12,764 INFO L933 BasicCegarLoop]: 5253 mSDtfsCounter, 11931 mSDsluCounter, 12036 mSDsCounter, 0 mSdLazyCounter, 7950 mSolverCounterSat, 9518 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12816 SdHoareTripleChecker+Valid, 17289 SdHoareTripleChecker+Invalid, 17471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9518 IncrementalHoareTripleChecker+Valid, 7950 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2021-12-18 16:17:12,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12816 Valid, 17289 Invalid, 17471 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9518 Valid, 7950 Invalid, 3 Unknown, 0 Unchecked, 23.9s Time] [2021-12-18 16:17:12,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22877 states. [2021-12-18 16:17:13,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22877 to 18209. [2021-12-18 16:17:13,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18209 states, 12036 states have (on average 1.3074111000332336) internal successors, (15736), 12487 states have internal predecessors, (15736), 4897 states have call successors, (4897), 1241 states have call predecessors, (4897), 1245 states have return successors, (4937), 4838 states have call predecessors, (4937), 4895 states have call successors, (4937) [2021-12-18 16:17:13,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18209 states to 18209 states and 25570 transitions. [2021-12-18 16:17:13,736 INFO L78 Accepts]: Start accepts. Automaton has 18209 states and 25570 transitions. Word has length 184 [2021-12-18 16:17:13,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:17:13,737 INFO L470 AbstractCegarLoop]: Abstraction has 18209 states and 25570 transitions. [2021-12-18 16:17:13,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:17:13,737 INFO L276 IsEmpty]: Start isEmpty. Operand 18209 states and 25570 transitions. [2021-12-18 16:17:13,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-12-18 16:17:13,740 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:17:13,740 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 16:17:13,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 16:17:13,741 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_usb_gadget_unregister_chrdev_regionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:17:13,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:17:13,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1070507917, now seen corresponding path program 1 times [2021-12-18 16:17:13,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:17:13,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409942966] [2021-12-18 16:17:13,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:17:13,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:17:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:17:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:17:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:17:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:17:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:17:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:17:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:17:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:17:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:17:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 16:17:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:17:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 16:17:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:17:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:17:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:17:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:13,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:17:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:17:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:17:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:17:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 16:17:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:17:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:17:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:17:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 16:17:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 16:17:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 16:17:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 16:17:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 16:17:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 16:17:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 16:17:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 16:17:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:14,111 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2021-12-18 16:17:14,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:17:14,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409942966] [2021-12-18 16:17:14,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409942966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:17:14,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:17:14,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 16:17:14,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182234430] [2021-12-18 16:17:14,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:17:14,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:17:14,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:17:14,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:17:14,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:17:14,113 INFO L87 Difference]: Start difference. First operand 18209 states and 25570 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 16:17:34,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:17:34,826 INFO L93 Difference]: Finished difference Result 22821 states and 33581 transitions. [2021-12-18 16:17:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 16:17:34,827 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2021-12-18 16:17:34,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:17:34,888 INFO L225 Difference]: With dead ends: 22821 [2021-12-18 16:17:34,888 INFO L226 Difference]: Without dead ends: 22819 [2021-12-18 16:17:34,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2021-12-18 16:17:34,897 INFO L933 BasicCegarLoop]: 4254 mSDtfsCounter, 8973 mSDsluCounter, 10011 mSDsCounter, 0 mSdLazyCounter, 17341 mSolverCounterSat, 7254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9322 SdHoareTripleChecker+Valid, 14265 SdHoareTripleChecker+Invalid, 24595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7254 IncrementalHoareTripleChecker+Valid, 17341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:17:34,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9322 Valid, 14265 Invalid, 24595 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7254 Valid, 17341 Invalid, 0 Unknown, 0 Unchecked, 19.2s Time] [2021-12-18 16:17:34,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22819 states. [2021-12-18 16:17:35,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22819 to 18207. [2021-12-18 16:17:35,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18207 states, 12035 states have (on average 1.3071873701703365) internal successors, (15732), 12485 states have internal predecessors, (15732), 4897 states have call successors, (4897), 1241 states have call predecessors, (4897), 1245 states have return successors, (4937), 4838 states have call predecessors, (4937), 4895 states have call successors, (4937) [2021-12-18 16:17:35,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18207 states to 18207 states and 25566 transitions. [2021-12-18 16:17:35,766 INFO L78 Accepts]: Start accepts. Automaton has 18207 states and 25566 transitions. Word has length 190 [2021-12-18 16:17:35,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:17:35,767 INFO L470 AbstractCegarLoop]: Abstraction has 18207 states and 25566 transitions. [2021-12-18 16:17:35,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 16:17:35,767 INFO L276 IsEmpty]: Start isEmpty. Operand 18207 states and 25566 transitions. [2021-12-18 16:17:35,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-18 16:17:35,770 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:17:35,770 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 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] [2021-12-18 16:17:35,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 16:17:35,770 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:17:35,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:17:35,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1360036536, now seen corresponding path program 1 times [2021-12-18 16:17:35,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:17:35,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724004658] [2021-12-18 16:17:35,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:17:35,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:17:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:17:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:17:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:17:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:17:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:17:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:17:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:17:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:17:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:17:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 16:17:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:17:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:17:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 16:17:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:17:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:17:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:17:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:17:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 16:17:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 16:17:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:17:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:17:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:17:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:35,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 16:17:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:36,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 16:17:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:36,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 16:17:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:36,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 16:17:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:36,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:17:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:36,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 16:17:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:36,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 16:17:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:17:36,045 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-12-18 16:17:36,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:17:36,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724004658] [2021-12-18 16:17:36,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724004658] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:17:36,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:17:36,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 16:17:36,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436186707] [2021-12-18 16:17:36,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:17:36,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 16:17:36,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:17:36,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 16:17:36,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:17:36,047 INFO L87 Difference]: Start difference. First operand 18207 states and 25566 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (28), 8 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-18 16:17:53,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:17:55,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:17:57,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:18:02,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:18:02,003 INFO L93 Difference]: Finished difference Result 42481 states and 62133 transitions. [2021-12-18 16:18:02,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 16:18:02,004 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (28), 8 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) Word has length 177 [2021-12-18 16:18:02,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:18:02,096 INFO L225 Difference]: With dead ends: 42481 [2021-12-18 16:18:02,096 INFO L226 Difference]: Without dead ends: 25025 [2021-12-18 16:18:02,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2021-12-18 16:18:02,148 INFO L933 BasicCegarLoop]: 4327 mSDtfsCounter, 12585 mSDsluCounter, 6752 mSDsCounter, 0 mSdLazyCounter, 10989 mSolverCounterSat, 12237 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12626 SdHoareTripleChecker+Valid, 11079 SdHoareTripleChecker+Invalid, 23229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12237 IncrementalHoareTripleChecker+Valid, 10989 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:18:02,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12626 Valid, 11079 Invalid, 23229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12237 Valid, 10989 Invalid, 3 Unknown, 0 Unchecked, 24.1s Time] [2021-12-18 16:18:02,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25025 states. [2021-12-18 16:18:03,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25025 to 18213. [2021-12-18 16:18:03,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18213 states, 12041 states have (on average 1.3070342994767876) internal successors, (15738), 12491 states have internal predecessors, (15738), 4897 states have call successors, (4897), 1241 states have call predecessors, (4897), 1245 states have return successors, (4937), 4838 states have call predecessors, (4937), 4895 states have call successors, (4937) [2021-12-18 16:18:03,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18213 states to 18213 states and 25572 transitions. [2021-12-18 16:18:03,228 INFO L78 Accepts]: Start accepts. Automaton has 18213 states and 25572 transitions. Word has length 177 [2021-12-18 16:18:03,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:18:03,229 INFO L470 AbstractCegarLoop]: Abstraction has 18213 states and 25572 transitions. [2021-12-18 16:18:03,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (28), 8 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-18 16:18:03,229 INFO L276 IsEmpty]: Start isEmpty. Operand 18213 states and 25572 transitions. [2021-12-18 16:18:03,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-18 16:18:03,232 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:18:03,232 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:18:03,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 16:18:03,233 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:18:03,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:18:03,233 INFO L85 PathProgramCache]: Analyzing trace with hash -335344435, now seen corresponding path program 1 times [2021-12-18 16:18:03,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:18:03,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059163403] [2021-12-18 16:18:03,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:18:03,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:18:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:18:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:18:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:18:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:18:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:18:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:18:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:18:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 16:18:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:18:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 16:18:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:18:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:18:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:18:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:18:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:18:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 16:18:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:18:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:18:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 16:18:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 16:18:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 16:18:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 16:18:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-18 16:18:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 16:18:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:03,607 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-18 16:18:03,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:18:03,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059163403] [2021-12-18 16:18:03,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059163403] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:18:03,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:18:03,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:18:03,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50184957] [2021-12-18 16:18:03,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:18:03,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:18:03,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:18:03,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:18:03,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:18:03,609 INFO L87 Difference]: Start difference. First operand 18213 states and 25572 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 16:18:15,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:18:15,899 INFO L93 Difference]: Finished difference Result 22998 states and 33745 transitions. [2021-12-18 16:18:15,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 16:18:15,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 196 [2021-12-18 16:18:15,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:18:15,968 INFO L225 Difference]: With dead ends: 22998 [2021-12-18 16:18:15,968 INFO L226 Difference]: Without dead ends: 22996 [2021-12-18 16:18:15,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-18 16:18:15,980 INFO L933 BasicCegarLoop]: 4667 mSDtfsCounter, 6877 mSDsluCounter, 11754 mSDsCounter, 0 mSdLazyCounter, 6047 mSolverCounterSat, 4123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7573 SdHoareTripleChecker+Valid, 16421 SdHoareTripleChecker+Invalid, 10170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4123 IncrementalHoareTripleChecker+Valid, 6047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-12-18 16:18:15,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7573 Valid, 16421 Invalid, 10170 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4123 Valid, 6047 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2021-12-18 16:18:15,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22996 states. [2021-12-18 16:18:16,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22996 to 18374. [2021-12-18 16:18:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18374 states, 12154 states have (on average 1.305084745762712) internal successors, (15862), 12606 states have internal predecessors, (15862), 4909 states have call successors, (4909), 1277 states have call predecessors, (4909), 1281 states have return successors, (4949), 4850 states have call predecessors, (4949), 4907 states have call successors, (4949) [2021-12-18 16:18:17,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18374 states to 18374 states and 25720 transitions. [2021-12-18 16:18:17,046 INFO L78 Accepts]: Start accepts. Automaton has 18374 states and 25720 transitions. Word has length 196 [2021-12-18 16:18:17,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:18:17,046 INFO L470 AbstractCegarLoop]: Abstraction has 18374 states and 25720 transitions. [2021-12-18 16:18:17,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 16:18:17,047 INFO L276 IsEmpty]: Start isEmpty. Operand 18374 states and 25720 transitions. [2021-12-18 16:18:17,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-18 16:18:17,050 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:18:17,050 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 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] [2021-12-18 16:18:17,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 16:18:17,050 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:18:17,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:18:17,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1827843280, now seen corresponding path program 1 times [2021-12-18 16:18:17,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:18:17,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038752584] [2021-12-18 16:18:17,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:18:17,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:18:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:18:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:18:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:18:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:18:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:18:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:18:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:18:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 16:18:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 16:18:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:18:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:18:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:18:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 16:18:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 16:18:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:18:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:18:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 16:18:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 16:18:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:18:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 16:18:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 16:18:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 16:18:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:17,310 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-12-18 16:18:17,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:18:17,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038752584] [2021-12-18 16:18:17,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038752584] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 16:18:17,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388486578] [2021-12-18 16:18:17,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:18:17,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:18:17,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:18:17,312 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:18:17,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 16:18:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:18,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 4015 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 16:18:18,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:18:18,447 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 57 proven. 1 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-18 16:18:18,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 16:18:18,725 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-12-18 16:18:18,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388486578] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 16:18:18,725 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 16:18:18,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 13 [2021-12-18 16:18:18,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638614148] [2021-12-18 16:18:18,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 16:18:18,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-18 16:18:18,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:18:18,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-18 16:18:18,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-18 16:18:18,727 INFO L87 Difference]: Start difference. First operand 18374 states and 25720 transitions. Second operand has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (46), 8 states have call predecessors, (46), 2 states have return successors, (35), 2 states have call predecessors, (35), 3 states have call successors, (35) [2021-12-18 16:18:40,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:18:40,325 INFO L93 Difference]: Finished difference Result 42894 states and 62646 transitions. [2021-12-18 16:18:40,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-18 16:18:40,326 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (46), 8 states have call predecessors, (46), 2 states have return successors, (35), 2 states have call predecessors, (35), 3 states have call successors, (35) Word has length 181 [2021-12-18 16:18:40,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:18:40,424 INFO L225 Difference]: With dead ends: 42894 [2021-12-18 16:18:40,424 INFO L226 Difference]: Without dead ends: 25342 [2021-12-18 16:18:40,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2021-12-18 16:18:40,476 INFO L933 BasicCegarLoop]: 4352 mSDtfsCounter, 10069 mSDsluCounter, 9911 mSDsCounter, 0 mSdLazyCounter, 15154 mSolverCounterSat, 10009 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10134 SdHoareTripleChecker+Valid, 14263 SdHoareTripleChecker+Invalid, 25163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10009 IncrementalHoareTripleChecker+Valid, 15154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:18:40,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10134 Valid, 14263 Invalid, 25163 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10009 Valid, 15154 Invalid, 0 Unknown, 0 Unchecked, 19.6s Time] [2021-12-18 16:18:40,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25342 states. [2021-12-18 16:18:41,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25342 to 18590. [2021-12-18 16:18:41,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18590 states, 12334 states have (on average 1.3035511593967894) internal successors, (16078), 12786 states have internal predecessors, (16078), 4945 states have call successors, (4945), 1277 states have call predecessors, (4945), 1281 states have return successors, (4985), 4886 states have call predecessors, (4985), 4943 states have call successors, (4985) [2021-12-18 16:18:41,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18590 states to 18590 states and 26008 transitions. [2021-12-18 16:18:41,615 INFO L78 Accepts]: Start accepts. Automaton has 18590 states and 26008 transitions. Word has length 181 [2021-12-18 16:18:41,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:18:41,615 INFO L470 AbstractCegarLoop]: Abstraction has 18590 states and 26008 transitions. [2021-12-18 16:18:41,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (46), 8 states have call predecessors, (46), 2 states have return successors, (35), 2 states have call predecessors, (35), 3 states have call successors, (35) [2021-12-18 16:18:41,615 INFO L276 IsEmpty]: Start isEmpty. Operand 18590 states and 26008 transitions. [2021-12-18 16:18:41,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-18 16:18:41,619 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:18:41,619 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 16:18:41,644 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-18 16:18:41,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-18 16:18:41,844 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_drivers_base_class__double_registrationErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:18:41,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:18:41,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1060895050, now seen corresponding path program 1 times [2021-12-18 16:18:41,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:18:41,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255141904] [2021-12-18 16:18:41,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:18:41,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:18:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:18:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:18:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:18:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:18:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:18:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:18:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:18:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 16:18:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:18:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 16:18:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:18:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:18:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:18:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:18:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:18:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 16:18:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:18:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:18:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 16:18:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 16:18:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 16:18:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 16:18:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 16:18:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 16:18:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 16:18:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:18:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 16:18:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 16:18:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:18:42,328 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2021-12-18 16:18:42,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:18:42,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255141904] [2021-12-18 16:18:42,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255141904] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:18:42,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:18:42,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 16:18:42,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851058452] [2021-12-18 16:18:42,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:18:42,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 16:18:42,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:18:42,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 16:18:42,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:18:42,330 INFO L87 Difference]: Start difference. First operand 18590 states and 26008 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 16:19:03,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:19:03,043 INFO L93 Difference]: Finished difference Result 45857 states and 67367 transitions. [2021-12-18 16:19:03,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 16:19:03,044 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (26), 5 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 201 [2021-12-18 16:19:03,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:19:03,202 INFO L225 Difference]: With dead ends: 45857 [2021-12-18 16:19:03,203 INFO L226 Difference]: Without dead ends: 45855 [2021-12-18 16:19:03,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:19:03,226 INFO L933 BasicCegarLoop]: 5254 mSDtfsCounter, 9232 mSDsluCounter, 18693 mSDsCounter, 0 mSdLazyCounter, 11372 mSolverCounterSat, 6608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10146 SdHoareTripleChecker+Valid, 23947 SdHoareTripleChecker+Invalid, 17980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6608 IncrementalHoareTripleChecker+Valid, 11372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2021-12-18 16:19:03,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10146 Valid, 23947 Invalid, 17980 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6608 Valid, 11372 Invalid, 0 Unknown, 0 Unchecked, 17.7s Time] [2021-12-18 16:19:03,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45855 states. [2021-12-18 16:19:04,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45855 to 24501. [2021-12-18 16:19:04,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24501 states, 16262 states have (on average 1.303898659451482) internal successors, (21204), 16847 states have internal predecessors, (21204), 6524 states have call successors, (6524), 1679 states have call predecessors, (6524), 1686 states have return successors, (6584), 6447 states have call predecessors, (6584), 6522 states have call successors, (6584) [2021-12-18 16:19:04,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24501 states to 24501 states and 34312 transitions. [2021-12-18 16:19:04,995 INFO L78 Accepts]: Start accepts. Automaton has 24501 states and 34312 transitions. Word has length 201 [2021-12-18 16:19:04,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:19:04,996 INFO L470 AbstractCegarLoop]: Abstraction has 24501 states and 34312 transitions. [2021-12-18 16:19:04,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 16:19:04,996 INFO L276 IsEmpty]: Start isEmpty. Operand 24501 states and 34312 transitions. [2021-12-18 16:19:05,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-12-18 16:19:05,000 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:19:05,000 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 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] [2021-12-18 16:19:05,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 16:19:05,000 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:19:05,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:19:05,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2017434856, now seen corresponding path program 2 times [2021-12-18 16:19:05,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:19:05,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515117375] [2021-12-18 16:19:05,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:19:05,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:19:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:19:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:19:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:19:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:19:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:19:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:19:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:19:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 16:19:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 16:19:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:19:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:19:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:19:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 16:19:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 16:19:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:19:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:19:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 16:19:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 16:19:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:19:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 16:19:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 16:19:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 16:19:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:05,315 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-12-18 16:19:05,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:19:05,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515117375] [2021-12-18 16:19:05,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515117375] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:19:05,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:19:05,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 16:19:05,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983450951] [2021-12-18 16:19:05,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:19:05,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:19:05,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:19:05,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:19:05,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:19:05,316 INFO L87 Difference]: Start difference. First operand 24501 states and 34312 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (28), 8 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-18 16:19:26,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:19:26,562 INFO L93 Difference]: Finished difference Result 33475 states and 50326 transitions. [2021-12-18 16:19:26,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-18 16:19:26,562 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (28), 8 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) Word has length 193 [2021-12-18 16:19:26,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:19:26,684 INFO L225 Difference]: With dead ends: 33475 [2021-12-18 16:19:26,684 INFO L226 Difference]: Without dead ends: 33473 [2021-12-18 16:19:26,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2021-12-18 16:19:26,702 INFO L933 BasicCegarLoop]: 4316 mSDtfsCounter, 14232 mSDsluCounter, 7669 mSDsCounter, 0 mSdLazyCounter, 11799 mSolverCounterSat, 12082 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14721 SdHoareTripleChecker+Valid, 11985 SdHoareTripleChecker+Invalid, 23881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12082 IncrementalHoareTripleChecker+Valid, 11799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2021-12-18 16:19:26,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14721 Valid, 11985 Invalid, 23881 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12082 Valid, 11799 Invalid, 0 Unknown, 0 Unchecked, 18.7s Time] [2021-12-18 16:19:26,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33473 states. [2021-12-18 16:19:28,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33473 to 24499. [2021-12-18 16:19:28,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24499 states, 16261 states have (on average 1.3037943545907387) internal successors, (21201), 16845 states have internal predecessors, (21201), 6524 states have call successors, (6524), 1679 states have call predecessors, (6524), 1686 states have return successors, (6584), 6447 states have call predecessors, (6584), 6522 states have call successors, (6584) [2021-12-18 16:19:28,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24499 states to 24499 states and 34309 transitions. [2021-12-18 16:19:28,337 INFO L78 Accepts]: Start accepts. Automaton has 24499 states and 34309 transitions. Word has length 193 [2021-12-18 16:19:28,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:19:28,338 INFO L470 AbstractCegarLoop]: Abstraction has 24499 states and 34309 transitions. [2021-12-18 16:19:28,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (28), 8 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-18 16:19:28,338 INFO L276 IsEmpty]: Start isEmpty. Operand 24499 states and 34309 transitions. [2021-12-18 16:19:28,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-18 16:19:28,342 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:19:28,342 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 5, 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, 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] [2021-12-18 16:19:28,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-18 16:19:28,343 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:19:28,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:19:28,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1110715818, now seen corresponding path program 1 times [2021-12-18 16:19:28,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:19:28,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939414787] [2021-12-18 16:19:28,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:19:28,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:19:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:19:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:19:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:19:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:19:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:19:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:19:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:19:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 16:19:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:19:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:19:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:19:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:19:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:19:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:19:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:19:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 16:19:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:19:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 16:19:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:19:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:19:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:28,942 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-12-18 16:19:28,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:19:28,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939414787] [2021-12-18 16:19:28,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939414787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:19:28,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:19:28,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-18 16:19:28,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275727794] [2021-12-18 16:19:28,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:19:28,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-18 16:19:28,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:19:28,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-18 16:19:28,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2021-12-18 16:19:28,944 INFO L87 Difference]: Start difference. First operand 24499 states and 34309 transitions. Second operand has 17 states, 16 states have (on average 5.625) internal successors, (90), 11 states have internal predecessors, (90), 4 states have call successors, (25), 6 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 16:19:48,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:19:52,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:19:52,722 INFO L93 Difference]: Finished difference Result 36887 states and 53710 transitions. [2021-12-18 16:19:52,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-18 16:19:52,722 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.625) internal successors, (90), 11 states have internal predecessors, (90), 4 states have call successors, (25), 6 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 195 [2021-12-18 16:19:52,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:19:52,811 INFO L225 Difference]: With dead ends: 36887 [2021-12-18 16:19:52,811 INFO L226 Difference]: Without dead ends: 30677 [2021-12-18 16:19:52,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=680, Unknown=0, NotChecked=0, Total=812 [2021-12-18 16:19:52,835 INFO L933 BasicCegarLoop]: 4656 mSDtfsCounter, 3491 mSDsluCounter, 50708 mSDsCounter, 0 mSdLazyCounter, 20692 mSolverCounterSat, 4230 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3674 SdHoareTripleChecker+Valid, 55364 SdHoareTripleChecker+Invalid, 24923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4230 IncrementalHoareTripleChecker+Valid, 20692 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:19:52,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3674 Valid, 55364 Invalid, 24923 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4230 Valid, 20692 Invalid, 1 Unknown, 0 Unchecked, 21.2s Time] [2021-12-18 16:19:52,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30677 states. [2021-12-18 16:19:54,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30677 to 24561. [2021-12-18 16:19:54,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24561 states, 16301 states have (on average 1.3035396601435494) internal successors, (21249), 16889 states have internal predecessors, (21249), 6540 states have call successors, (6540), 1681 states have call predecessors, (6540), 1692 states have return successors, (6616), 6465 states have call predecessors, (6616), 6538 states have call successors, (6616) [2021-12-18 16:19:54,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24561 states to 24561 states and 34405 transitions. [2021-12-18 16:19:54,388 INFO L78 Accepts]: Start accepts. Automaton has 24561 states and 34405 transitions. Word has length 195 [2021-12-18 16:19:54,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:19:54,388 INFO L470 AbstractCegarLoop]: Abstraction has 24561 states and 34405 transitions. [2021-12-18 16:19:54,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.625) internal successors, (90), 11 states have internal predecessors, (90), 4 states have call successors, (25), 6 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-18 16:19:54,389 INFO L276 IsEmpty]: Start isEmpty. Operand 24561 states and 34405 transitions. [2021-12-18 16:19:54,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-12-18 16:19:54,392 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:19:54,392 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 5, 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, 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] [2021-12-18 16:19:54,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-18 16:19:54,393 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:19:54,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:19:54,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1323807775, now seen corresponding path program 1 times [2021-12-18 16:19:54,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:19:54,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227469377] [2021-12-18 16:19:54,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:19:54,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:19:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:19:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:19:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:19:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:19:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:19:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:19:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:19:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 16:19:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:19:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:19:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:19:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:19:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:19:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:19:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:19:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 16:19:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:19:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 16:19:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:19:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:19:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:19:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:19:54,775 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-12-18 16:19:54,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:19:54,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227469377] [2021-12-18 16:19:54,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227469377] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:19:54,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:19:54,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 16:19:54,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718594798] [2021-12-18 16:19:54,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:19:54,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 16:19:54,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:19:54,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 16:19:54,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:19:54,777 INFO L87 Difference]: Start difference. First operand 24561 states and 34405 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:20:09,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:20:17,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:20:17,634 INFO L93 Difference]: Finished difference Result 38663 states and 56634 transitions. [2021-12-18 16:20:17,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 16:20:17,635 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 205 [2021-12-18 16:20:17,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:20:17,738 INFO L225 Difference]: With dead ends: 38663 [2021-12-18 16:20:17,739 INFO L226 Difference]: Without dead ends: 32401 [2021-12-18 16:20:17,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-18 16:20:17,766 INFO L933 BasicCegarLoop]: 5635 mSDtfsCounter, 4173 mSDsluCounter, 18072 mSDsCounter, 0 mSdLazyCounter, 10539 mSolverCounterSat, 4232 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4670 SdHoareTripleChecker+Valid, 23707 SdHoareTripleChecker+Invalid, 14772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4232 IncrementalHoareTripleChecker+Valid, 10539 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2021-12-18 16:20:17,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4670 Valid, 23707 Invalid, 14772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4232 Valid, 10539 Invalid, 1 Unknown, 0 Unchecked, 20.5s Time] [2021-12-18 16:20:17,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32401 states. [2021-12-18 16:20:19,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32401 to 24567. [2021-12-18 16:20:19,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24567 states, 16307 states have (on average 1.3035506224320843) internal successors, (21257), 16895 states have internal predecessors, (21257), 6540 states have call successors, (6540), 1681 states have call predecessors, (6540), 1692 states have return successors, (6616), 6465 states have call predecessors, (6616), 6538 states have call successors, (6616) [2021-12-18 16:20:19,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24567 states to 24567 states and 34413 transitions. [2021-12-18 16:20:19,479 INFO L78 Accepts]: Start accepts. Automaton has 24567 states and 34413 transitions. Word has length 205 [2021-12-18 16:20:19,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:20:19,480 INFO L470 AbstractCegarLoop]: Abstraction has 24567 states and 34413 transitions. [2021-12-18 16:20:19,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:20:19,480 INFO L276 IsEmpty]: Start isEmpty. Operand 24567 states and 34413 transitions. [2021-12-18 16:20:19,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-12-18 16:20:19,484 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:20:19,484 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 5, 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, 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] [2021-12-18 16:20:19,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-18 16:20:19,484 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:20:19,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:20:19,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1283133025, now seen corresponding path program 1 times [2021-12-18 16:20:19,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:20:19,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313588913] [2021-12-18 16:20:19,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:20:19,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:20:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:20:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:20:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:20:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:20:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:20:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:20:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:20:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 16:20:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:20:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:20:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:20:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:20:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:20:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:20:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:20:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 16:20:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:20:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 16:20:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:20:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:20:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:19,883 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-12-18 16:20:19,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:20:19,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313588913] [2021-12-18 16:20:19,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313588913] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:20:19,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:20:19,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 16:20:19,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233092641] [2021-12-18 16:20:19,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:20:19,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 16:20:19,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:20:19,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 16:20:19,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:20:19,886 INFO L87 Difference]: Start difference. First operand 24567 states and 34413 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:20:27,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:20:42,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:20:44,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:20:50,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:20:50,060 INFO L93 Difference]: Finished difference Result 36973 states and 53832 transitions. [2021-12-18 16:20:50,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 16:20:50,060 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 205 [2021-12-18 16:20:50,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:20:50,145 INFO L225 Difference]: With dead ends: 36973 [2021-12-18 16:20:50,146 INFO L226 Difference]: Without dead ends: 30705 [2021-12-18 16:20:50,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-18 16:20:50,168 INFO L933 BasicCegarLoop]: 4673 mSDtfsCounter, 2565 mSDsluCounter, 18139 mSDsCounter, 0 mSdLazyCounter, 13589 mSolverCounterSat, 2848 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2748 SdHoareTripleChecker+Valid, 22812 SdHoareTripleChecker+Invalid, 16440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2848 IncrementalHoareTripleChecker+Valid, 13589 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2021-12-18 16:20:50,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2748 Valid, 22812 Invalid, 16440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2848 Valid, 13589 Invalid, 3 Unknown, 0 Unchecked, 27.9s Time] [2021-12-18 16:20:50,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30705 states. [2021-12-18 16:20:51,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30705 to 24575. [2021-12-18 16:20:51,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24575 states, 16315 states have (on average 1.303524364082133) internal successors, (21267), 16903 states have internal predecessors, (21267), 6540 states have call successors, (6540), 1681 states have call predecessors, (6540), 1692 states have return successors, (6616), 6465 states have call predecessors, (6616), 6538 states have call successors, (6616) [2021-12-18 16:20:51,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24575 states to 24575 states and 34423 transitions. [2021-12-18 16:20:51,744 INFO L78 Accepts]: Start accepts. Automaton has 24575 states and 34423 transitions. Word has length 205 [2021-12-18 16:20:51,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:20:51,744 INFO L470 AbstractCegarLoop]: Abstraction has 24575 states and 34423 transitions. [2021-12-18 16:20:51,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:20:51,745 INFO L276 IsEmpty]: Start isEmpty. Operand 24575 states and 34423 transitions. [2021-12-18 16:20:51,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-18 16:20:51,749 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:20:51,749 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 5, 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, 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] [2021-12-18 16:20:51,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-18 16:20:51,749 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:20:51,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:20:51,749 INFO L85 PathProgramCache]: Analyzing trace with hash -2030228340, now seen corresponding path program 1 times [2021-12-18 16:20:51,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:20:51,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255493358] [2021-12-18 16:20:51,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:20:51,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:20:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:20:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:20:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:20:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:20:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:20:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:20:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:20:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 16:20:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:20:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:20:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:20:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:20:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:20:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:20:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:20:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 16:20:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:20:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 16:20:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:51,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:20:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:52,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:20:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:52,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:20:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:20:52,007 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-12-18 16:20:52,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:20:52,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255493358] [2021-12-18 16:20:52,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255493358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:20:52,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:20:52,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 16:20:52,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051249215] [2021-12-18 16:20:52,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:20:52,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 16:20:52,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:20:52,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 16:20:52,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:20:52,009 INFO L87 Difference]: Start difference. First operand 24575 states and 34423 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:21:07,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:21:12,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:21:12,060 INFO L93 Difference]: Finished difference Result 37007 states and 53876 transitions. [2021-12-18 16:21:12,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 16:21:12,060 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 208 [2021-12-18 16:21:12,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:21:12,158 INFO L225 Difference]: With dead ends: 37007 [2021-12-18 16:21:12,158 INFO L226 Difference]: Without dead ends: 30731 [2021-12-18 16:21:12,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-18 16:21:12,182 INFO L933 BasicCegarLoop]: 4662 mSDtfsCounter, 2567 mSDsluCounter, 16415 mSDsCounter, 0 mSdLazyCounter, 9929 mSolverCounterSat, 2843 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2750 SdHoareTripleChecker+Valid, 21077 SdHoareTripleChecker+Invalid, 12773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2843 IncrementalHoareTripleChecker+Valid, 9929 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2021-12-18 16:21:12,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2750 Valid, 21077 Invalid, 12773 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2843 Valid, 9929 Invalid, 1 Unknown, 0 Unchecked, 17.8s Time] [2021-12-18 16:21:12,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30731 states. [2021-12-18 16:21:13,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30731 to 24581. [2021-12-18 16:21:13,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24581 states, 16321 states have (on average 1.3035353225905275) internal successors, (21275), 16909 states have internal predecessors, (21275), 6540 states have call successors, (6540), 1681 states have call predecessors, (6540), 1692 states have return successors, (6616), 6465 states have call predecessors, (6616), 6538 states have call successors, (6616) [2021-12-18 16:21:13,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24581 states to 24581 states and 34431 transitions. [2021-12-18 16:21:13,772 INFO L78 Accepts]: Start accepts. Automaton has 24581 states and 34431 transitions. Word has length 208 [2021-12-18 16:21:13,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:21:13,773 INFO L470 AbstractCegarLoop]: Abstraction has 24581 states and 34431 transitions. [2021-12-18 16:21:13,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:21:13,773 INFO L276 IsEmpty]: Start isEmpty. Operand 24581 states and 34431 transitions. [2021-12-18 16:21:13,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-12-18 16:21:13,777 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:21:13,777 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 5, 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, 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] [2021-12-18 16:21:13,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-18 16:21:13,777 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:21:13,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:21:13,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1080771785, now seen corresponding path program 1 times [2021-12-18 16:21:13,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:21:13,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188685441] [2021-12-18 16:21:13,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:21:13,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:21:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:13,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:21:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:21:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:21:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:21:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:21:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:21:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:21:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:21:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:21:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 16:21:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:21:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:21:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:21:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:21:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:21:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:21:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:21:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:21:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 16:21:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 16:21:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:21:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 16:21:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:21:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:21:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:21:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:21:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:21:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:21:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:21:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:14,157 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-12-18 16:21:14,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:21:14,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188685441] [2021-12-18 16:21:14,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188685441] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:21:14,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:21:14,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 16:21:14,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265015185] [2021-12-18 16:21:14,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:21:14,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 16:21:14,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:21:14,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 16:21:14,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:21:14,159 INFO L87 Difference]: Start difference. First operand 24581 states and 34431 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:21:27,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:21:27,151 INFO L93 Difference]: Finished difference Result 30877 states and 45264 transitions. [2021-12-18 16:21:27,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 16:21:27,152 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 209 [2021-12-18 16:21:27,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:21:27,240 INFO L225 Difference]: With dead ends: 30877 [2021-12-18 16:21:27,240 INFO L226 Difference]: Without dead ends: 30875 [2021-12-18 16:21:27,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-18 16:21:27,252 INFO L933 BasicCegarLoop]: 4610 mSDtfsCounter, 7775 mSDsluCounter, 11963 mSDsCounter, 0 mSdLazyCounter, 6310 mSolverCounterSat, 5439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8503 SdHoareTripleChecker+Valid, 16573 SdHoareTripleChecker+Invalid, 11749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5439 IncrementalHoareTripleChecker+Valid, 6310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:21:27,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8503 Valid, 16573 Invalid, 11749 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5439 Valid, 6310 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2021-12-18 16:21:27,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30875 states. [2021-12-18 16:21:28,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30875 to 24757. [2021-12-18 16:21:28,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24757 states, 16448 states have (on average 1.3016780155642023) internal successors, (21410), 17036 states have internal predecessors, (21410), 6543 states have call successors, (6543), 1727 states have call predecessors, (6543), 1738 states have return successors, (6619), 6468 states have call predecessors, (6619), 6541 states have call successors, (6619) [2021-12-18 16:21:29,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24757 states to 24757 states and 34572 transitions. [2021-12-18 16:21:29,013 INFO L78 Accepts]: Start accepts. Automaton has 24757 states and 34572 transitions. Word has length 209 [2021-12-18 16:21:29,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:21:29,013 INFO L470 AbstractCegarLoop]: Abstraction has 24757 states and 34572 transitions. [2021-12-18 16:21:29,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:21:29,013 INFO L276 IsEmpty]: Start isEmpty. Operand 24757 states and 34572 transitions. [2021-12-18 16:21:29,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-12-18 16:21:29,017 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:21:29,017 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 16:21:29,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-18 16:21:29,018 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:21:29,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:21:29,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1942440704, now seen corresponding path program 1 times [2021-12-18 16:21:29,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:21:29,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608973385] [2021-12-18 16:21:29,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:21:29,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:21:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:21:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:21:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:21:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:21:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:21:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:21:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:21:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:21:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:21:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 16:21:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:21:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 16:21:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:21:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:21:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:21:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:21:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:21:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:21:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:21:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 16:21:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:21:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:21:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:21:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 16:21:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 16:21:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 16:21:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 16:21:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 16:21:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 16:21:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 16:21:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:21:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 16:21:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 16:21:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 16:21:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 16:21:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:21:29,375 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2021-12-18 16:21:29,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:21:29,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608973385] [2021-12-18 16:21:29,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608973385] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:21:29,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:21:29,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 16:21:29,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556292843] [2021-12-18 16:21:29,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:21:29,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:21:29,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:21:29,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:21:29,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:21:29,378 INFO L87 Difference]: Start difference. First operand 24757 states and 34572 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 16:21:43,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:21:45,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:21:47,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:21:49,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:21:51,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:21:53,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:21:55,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:21:57,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:22:00,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:22:02,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:22:06,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:22:06,048 INFO L93 Difference]: Finished difference Result 30873 states and 45254 transitions. [2021-12-18 16:22:06,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:22:06,049 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 214 [2021-12-18 16:22:06,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:22:06,160 INFO L225 Difference]: With dead ends: 30873 [2021-12-18 16:22:06,161 INFO L226 Difference]: Without dead ends: 30871 [2021-12-18 16:22:06,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2021-12-18 16:22:06,177 INFO L933 BasicCegarLoop]: 4591 mSDtfsCounter, 8360 mSDsluCounter, 19436 mSDsCounter, 0 mSdLazyCounter, 8516 mSolverCounterSat, 5697 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9090 SdHoareTripleChecker+Valid, 24027 SdHoareTripleChecker+Invalid, 14223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5697 IncrementalHoareTripleChecker+Valid, 8516 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:22:06,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9090 Valid, 24027 Invalid, 14223 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5697 Valid, 8516 Invalid, 10 Unknown, 0 Unchecked, 34.0s Time] [2021-12-18 16:22:06,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30871 states. [2021-12-18 16:22:07,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30871 to 24755. [2021-12-18 16:22:07,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24755 states, 16447 states have (on average 1.301574755274518) internal successors, (21407), 17034 states have internal predecessors, (21407), 6543 states have call successors, (6543), 1727 states have call predecessors, (6543), 1738 states have return successors, (6619), 6468 states have call predecessors, (6619), 6541 states have call successors, (6619) [2021-12-18 16:22:08,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24755 states to 24755 states and 34569 transitions. [2021-12-18 16:22:08,030 INFO L78 Accepts]: Start accepts. Automaton has 24755 states and 34569 transitions. Word has length 214 [2021-12-18 16:22:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:22:08,030 INFO L470 AbstractCegarLoop]: Abstraction has 24755 states and 34569 transitions. [2021-12-18 16:22:08,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 16:22:08,030 INFO L276 IsEmpty]: Start isEmpty. Operand 24755 states and 34569 transitions. [2021-12-18 16:22:08,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-12-18 16:22:08,034 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:22:08,035 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 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] [2021-12-18 16:22:08,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-18 16:22:08,035 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:22:08,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:22:08,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1761161037, now seen corresponding path program 1 times [2021-12-18 16:22:08,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:22:08,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265011102] [2021-12-18 16:22:08,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:22:08,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:22:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:22:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:22:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:22:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:22:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:22:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:22:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:22:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:22:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:22:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 16:22:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:22:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:22:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 16:22:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:22:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:22:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:22:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:22:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 16:22:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 16:22:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:22:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:22:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:22:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 16:22:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 16:22:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:22:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 16:22:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:22:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 16:22:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 16:22:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 16:22:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:08,365 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-12-18 16:22:08,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:22:08,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265011102] [2021-12-18 16:22:08,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265011102] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:22:08,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:22:08,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 16:22:08,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109809914] [2021-12-18 16:22:08,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:22:08,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:22:08,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:22:08,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:22:08,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:22:08,367 INFO L87 Difference]: Start difference. First operand 24755 states and 34569 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (29), 8 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-18 16:22:31,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:22:33,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:22:38,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:22:38,117 INFO L93 Difference]: Finished difference Result 33715 states and 50557 transitions. [2021-12-18 16:22:38,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-18 16:22:38,118 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (29), 8 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 199 [2021-12-18 16:22:38,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:22:38,244 INFO L225 Difference]: With dead ends: 33715 [2021-12-18 16:22:38,244 INFO L226 Difference]: Without dead ends: 33713 [2021-12-18 16:22:38,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2021-12-18 16:22:38,261 INFO L933 BasicCegarLoop]: 4271 mSDtfsCounter, 17002 mSDsluCounter, 6763 mSDsCounter, 0 mSdLazyCounter, 10837 mSolverCounterSat, 14447 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17501 SdHoareTripleChecker+Valid, 11034 SdHoareTripleChecker+Invalid, 25286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14447 IncrementalHoareTripleChecker+Valid, 10837 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2021-12-18 16:22:38,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17501 Valid, 11034 Invalid, 25286 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14447 Valid, 10837 Invalid, 2 Unknown, 0 Unchecked, 26.3s Time] [2021-12-18 16:22:38,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33713 states. [2021-12-18 16:22:40,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33713 to 24753. [2021-12-18 16:22:40,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24753 states, 16446 states have (on average 1.301471482427338) internal successors, (21404), 17032 states have internal predecessors, (21404), 6543 states have call successors, (6543), 1727 states have call predecessors, (6543), 1738 states have return successors, (6619), 6468 states have call predecessors, (6619), 6541 states have call successors, (6619) [2021-12-18 16:22:40,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24753 states to 24753 states and 34566 transitions. [2021-12-18 16:22:40,247 INFO L78 Accepts]: Start accepts. Automaton has 24753 states and 34566 transitions. Word has length 199 [2021-12-18 16:22:40,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:22:40,247 INFO L470 AbstractCegarLoop]: Abstraction has 24753 states and 34566 transitions. [2021-12-18 16:22:40,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (29), 8 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-18 16:22:40,247 INFO L276 IsEmpty]: Start isEmpty. Operand 24753 states and 34566 transitions. [2021-12-18 16:22:40,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-12-18 16:22:40,252 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:22:40,252 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:22:40,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-18 16:22:40,252 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:22:40,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:22:40,253 INFO L85 PathProgramCache]: Analyzing trace with hash 685460722, now seen corresponding path program 1 times [2021-12-18 16:22:40,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:22:40,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16811138] [2021-12-18 16:22:40,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:22:40,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:22:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:22:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:22:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:22:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:22:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:22:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:22:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:22:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:22:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:22:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 16:22:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:22:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 16:22:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:22:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:22:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:22:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:22:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:22:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:22:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:22:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 16:22:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:22:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:22:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:22:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 16:22:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 16:22:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 16:22:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:22:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:22:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 16:22:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-18 16:22:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 16:22:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 16:22:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:22:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:22:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:22:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 16:22:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:22:40,573 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 398 trivial. 0 not checked. [2021-12-18 16:22:40,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:22:40,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16811138] [2021-12-18 16:22:40,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16811138] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:22:40,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:22:40,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 16:22:40,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355831377] [2021-12-18 16:22:40,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:22:40,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 16:22:40,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:22:40,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 16:22:40,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:22:40,576 INFO L87 Difference]: Start difference. First operand 24753 states and 34566 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-18 16:22:49,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:22:51,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:22:53,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:22:55,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:22:57,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:23:10,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:23:14,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:23:16,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:23:18,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:23:20,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:23:24,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:23:29,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:23:29,005 INFO L93 Difference]: Finished difference Result 33539 states and 50067 transitions. [2021-12-18 16:23:29,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-18 16:23:29,005 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 221 [2021-12-18 16:23:29,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:23:29,136 INFO L225 Difference]: With dead ends: 33539 [2021-12-18 16:23:29,136 INFO L226 Difference]: Without dead ends: 33537 [2021-12-18 16:23:29,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2021-12-18 16:23:29,154 INFO L933 BasicCegarLoop]: 4336 mSDtfsCounter, 5375 mSDsluCounter, 9908 mSDsCounter, 0 mSdLazyCounter, 15284 mSolverCounterSat, 5215 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5863 SdHoareTripleChecker+Valid, 14244 SdHoareTripleChecker+Invalid, 20510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5215 IncrementalHoareTripleChecker+Valid, 15284 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:23:29,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5863 Valid, 14244 Invalid, 20510 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5215 Valid, 15284 Invalid, 11 Unknown, 0 Unchecked, 45.0s Time] [2021-12-18 16:23:29,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33537 states. [2021-12-18 16:23:31,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33537 to 24757. [2021-12-18 16:23:31,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24757 states, 16449 states have (on average 1.3009909416985834) internal successors, (21400), 17035 states have internal predecessors, (21400), 6543 states have call successors, (6543), 1728 states have call predecessors, (6543), 1739 states have return successors, (6619), 6468 states have call predecessors, (6619), 6541 states have call successors, (6619) [2021-12-18 16:23:31,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24757 states to 24757 states and 34562 transitions. [2021-12-18 16:23:31,326 INFO L78 Accepts]: Start accepts. Automaton has 24757 states and 34562 transitions. Word has length 221 [2021-12-18 16:23:31,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:23:31,327 INFO L470 AbstractCegarLoop]: Abstraction has 24757 states and 34562 transitions. [2021-12-18 16:23:31,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-18 16:23:31,327 INFO L276 IsEmpty]: Start isEmpty. Operand 24757 states and 34562 transitions. [2021-12-18 16:23:31,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-18 16:23:31,332 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:23:31,332 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:23:31,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-18 16:23:31,333 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:23:31,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:23:31,333 INFO L85 PathProgramCache]: Analyzing trace with hash -2100944041, now seen corresponding path program 1 times [2021-12-18 16:23:31,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:23:31,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981194401] [2021-12-18 16:23:31,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:23:31,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:23:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:23:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:23:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:23:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:23:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:23:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:23:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:23:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:23:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:23:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 16:23:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:23:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 16:23:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:23:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:23:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:23:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:23:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:23:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:23:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:23:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 16:23:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:23:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:23:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:23:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 16:23:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 16:23:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 16:23:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:23:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:23:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 16:23:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-18 16:23:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 16:23:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 16:23:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:23:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:23:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:23:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 16:23:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:23:31,706 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 398 trivial. 0 not checked. [2021-12-18 16:23:31,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:23:31,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981194401] [2021-12-18 16:23:31,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981194401] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:23:31,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:23:31,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 16:23:31,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165679495] [2021-12-18 16:23:31,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:23:31,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 16:23:31,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:23:31,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 16:23:31,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:23:31,707 INFO L87 Difference]: Start difference. First operand 24757 states and 34562 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-18 16:23:54,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:23:56,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:23:58,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:24:02,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:24:02,675 INFO L93 Difference]: Finished difference Result 33857 states and 50370 transitions. [2021-12-18 16:24:02,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 16:24:02,676 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 222 [2021-12-18 16:24:02,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:24:02,798 INFO L225 Difference]: With dead ends: 33857 [2021-12-18 16:24:02,798 INFO L226 Difference]: Without dead ends: 33855 [2021-12-18 16:24:02,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2021-12-18 16:24:02,816 INFO L933 BasicCegarLoop]: 4330 mSDtfsCounter, 9563 mSDsluCounter, 8527 mSDsCounter, 0 mSdLazyCounter, 11659 mSolverCounterSat, 7746 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9937 SdHoareTripleChecker+Valid, 12857 SdHoareTripleChecker+Invalid, 19408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7746 IncrementalHoareTripleChecker+Valid, 11659 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2021-12-18 16:24:02,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9937 Valid, 12857 Invalid, 19408 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7746 Valid, 11659 Invalid, 3 Unknown, 0 Unchecked, 27.5s Time] [2021-12-18 16:24:02,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33855 states. [2021-12-18 16:24:04,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33855 to 25066. [2021-12-18 16:24:04,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25066 states, 16662 states have (on average 1.2985836034089544) internal successors, (21637), 17251 states have internal predecessors, (21637), 6570 states have call successors, (6570), 1797 states have call predecessors, (6570), 1808 states have return successors, (6646), 6495 states have call predecessors, (6646), 6568 states have call successors, (6646) [2021-12-18 16:24:04,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25066 states to 25066 states and 34853 transitions. [2021-12-18 16:24:04,951 INFO L78 Accepts]: Start accepts. Automaton has 25066 states and 34853 transitions. Word has length 222 [2021-12-18 16:24:04,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:24:04,951 INFO L470 AbstractCegarLoop]: Abstraction has 25066 states and 34853 transitions. [2021-12-18 16:24:04,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-18 16:24:04,951 INFO L276 IsEmpty]: Start isEmpty. Operand 25066 states and 34853 transitions. [2021-12-18 16:24:04,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-12-18 16:24:04,956 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:24:04,957 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 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] [2021-12-18 16:24:04,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-18 16:24:04,957 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-12-18 16:24:04,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:24:04,957 INFO L85 PathProgramCache]: Analyzing trace with hash 777626140, now seen corresponding path program 1 times [2021-12-18 16:24:04,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:24:04,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76943780] [2021-12-18 16:24:04,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:24:04,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:24:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:24:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 16:24:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:24:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:24:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:24:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 16:24:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:24:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:24:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:24:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 16:24:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:24:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:24:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 16:24:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:24:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:24:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:24:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:24:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 16:24:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 16:24:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:24:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:24:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:24:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 16:24:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 16:24:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:24:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 16:24:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:24:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 16:24:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 16:24:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 16:24:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-18 16:24:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:05,285 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-12-18 16:24:05,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:24:05,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76943780] [2021-12-18 16:24:05,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76943780] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:24:05,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:24:05,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 16:24:05,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385272667] [2021-12-18 16:24:05,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:24:05,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:24:05,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:24:05,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:24:05,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:24:05,287 INFO L87 Difference]: Start difference. First operand 25066 states and 34853 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (30), 8 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 3 states have call successors, (29) [2021-12-18 16:24:28,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:24:30,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:24:33,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15