./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--usb--misc--uss720.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:25:44,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:25:44,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:25:44,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:25:44,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:25:44,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:25:44,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:25:44,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:25:44,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:25:44,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:25:44,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:25:44,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:25:44,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:25:44,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:25:44,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:25:44,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:25:44,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:25:44,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:25:44,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:25:44,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:25:44,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:25:44,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:25:44,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:25:44,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:25:44,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:25:44,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:25:44,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:25:44,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:25:44,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:25:44,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:25:44,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:25:44,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:25:44,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:25:44,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:25:44,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:25:44,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:25:44,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:25:44,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:25:44,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:25:44,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:25:44,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:25:44,141 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:25:44,167 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:25:44,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:25:44,168 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:25:44,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:25:44,170 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:25:44,170 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:25:44,171 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:25:44,171 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:25:44,171 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:25:44,172 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:25:44,172 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:25:44,173 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:25:44,173 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:25:44,174 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:25:44,174 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:25:44,175 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:25:44,175 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:25:44,175 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:25:44,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:25:44,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:25:44,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:25:44,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:25:44,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:25:44,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:25:44,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:25:44,179 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:25:44,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:25:44,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:25:44,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:25:44,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:25:44,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:25:44,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:25:44,181 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:25:44,181 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:25:44,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:25:44,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:25:44,182 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:25:44,182 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:25:44,182 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 [2021-11-25 20:25:44,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:25:44,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:25:44,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:25:44,549 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:25:44,550 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:25:44,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2021-11-25 20:25:44,622 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/data/5a4bdf72d/bdea664bc8b7411380052386f631fdbc/FLAG0834dcd71 [2021-11-25 20:25:45,672 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:25:45,674 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2021-11-25 20:25:45,731 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/data/5a4bdf72d/bdea664bc8b7411380052386f631fdbc/FLAG0834dcd71 [2021-11-25 20:25:46,003 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/data/5a4bdf72d/bdea664bc8b7411380052386f631fdbc [2021-11-25 20:25:46,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:25:46,007 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:25:46,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:25:46,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:25:46,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:25:46,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:25:46" (1/1) ... [2021-11-25 20:25:46,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7acefdf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:46, skipping insertion in model container [2021-11-25 20:25:46,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:25:46" (1/1) ... [2021-11-25 20:25:46,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:25:46,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:25:49,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2021-11-25 20:25:49,197 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2021-11-25 20:25:49,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2021-11-25 20:25:49,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2021-11-25 20:25:49,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2021-11-25 20:25:49,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2021-11-25 20:25:49,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2021-11-25 20:25:49,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2021-11-25 20:25:49,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2021-11-25 20:25:49,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2021-11-25 20:25:49,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2021-11-25 20:25:49,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2021-11-25 20:25:49,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2021-11-25 20:25:49,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2021-11-25 20:25:49,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2021-11-25 20:25:49,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2021-11-25 20:25:49,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2021-11-25 20:25:49,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2021-11-25 20:25:49,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2021-11-25 20:25:49,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2021-11-25 20:25:49,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2021-11-25 20:25:49,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2021-11-25 20:25:49,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2021-11-25 20:25:49,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2021-11-25 20:25:49,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2021-11-25 20:25:49,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2021-11-25 20:25:49,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2021-11-25 20:25:49,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2021-11-25 20:25:49,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2021-11-25 20:25:49,238 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2021-11-25 20:25:49,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2021-11-25 20:25:49,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2021-11-25 20:25:49,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2021-11-25 20:25:49,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2021-11-25 20:25:49,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2021-11-25 20:25:49,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2021-11-25 20:25:49,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2021-11-25 20:25:49,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2021-11-25 20:25:49,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2021-11-25 20:25:49,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2021-11-25 20:25:49,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2021-11-25 20:25:49,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2021-11-25 20:25:49,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2021-11-25 20:25:49,247 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2021-11-25 20:25:49,247 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2021-11-25 20:25:49,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2021-11-25 20:25:49,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2021-11-25 20:25:49,250 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2021-11-25 20:25:49,250 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2021-11-25 20:25:49,251 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2021-11-25 20:25:49,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2021-11-25 20:25:49,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2021-11-25 20:25:49,253 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2021-11-25 20:25:49,253 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2021-11-25 20:25:49,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2021-11-25 20:25:49,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2021-11-25 20:25:49,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2021-11-25 20:25:49,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2021-11-25 20:25:49,256 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2021-11-25 20:25:49,256 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2021-11-25 20:25:49,257 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2021-11-25 20:25:49,258 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2021-11-25 20:25:49,258 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2021-11-25 20:25:49,259 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2021-11-25 20:25:49,260 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2021-11-25 20:25:49,260 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2021-11-25 20:25:49,261 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2021-11-25 20:25:49,261 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2021-11-25 20:25:49,262 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2021-11-25 20:25:49,262 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2021-11-25 20:25:49,263 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2021-11-25 20:25:49,263 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2021-11-25 20:25:49,264 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2021-11-25 20:25:49,264 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2021-11-25 20:25:49,265 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2021-11-25 20:25:49,265 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2021-11-25 20:25:49,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2021-11-25 20:25:49,267 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2021-11-25 20:25:49,267 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2021-11-25 20:25:49,268 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2021-11-25 20:25:49,268 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2021-11-25 20:25:49,269 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2021-11-25 20:25:49,269 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2021-11-25 20:25:49,270 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2021-11-25 20:25:49,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2021-11-25 20:25:49,272 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2021-11-25 20:25:49,273 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2021-11-25 20:25:49,274 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2021-11-25 20:25:49,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:25:49,325 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:25:49,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2021-11-25 20:25:49,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2021-11-25 20:25:49,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2021-11-25 20:25:49,660 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2021-11-25 20:25:49,660 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2021-11-25 20:25:49,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2021-11-25 20:25:49,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2021-11-25 20:25:49,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2021-11-25 20:25:49,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2021-11-25 20:25:49,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2021-11-25 20:25:49,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2021-11-25 20:25:49,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2021-11-25 20:25:49,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2021-11-25 20:25:49,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2021-11-25 20:25:49,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2021-11-25 20:25:49,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2021-11-25 20:25:49,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2021-11-25 20:25:49,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2021-11-25 20:25:49,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2021-11-25 20:25:49,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2021-11-25 20:25:49,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2021-11-25 20:25:49,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2021-11-25 20:25:49,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2021-11-25 20:25:49,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2021-11-25 20:25:49,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2021-11-25 20:25:49,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2021-11-25 20:25:49,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2021-11-25 20:25:49,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2021-11-25 20:25:49,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2021-11-25 20:25:49,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2021-11-25 20:25:49,672 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2021-11-25 20:25:49,672 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2021-11-25 20:25:49,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2021-11-25 20:25:49,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2021-11-25 20:25:49,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2021-11-25 20:25:49,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2021-11-25 20:25:49,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2021-11-25 20:25:49,675 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2021-11-25 20:25:49,675 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2021-11-25 20:25:49,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2021-11-25 20:25:49,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2021-11-25 20:25:49,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2021-11-25 20:25:49,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2021-11-25 20:25:49,678 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2021-11-25 20:25:49,678 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2021-11-25 20:25:49,679 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2021-11-25 20:25:49,679 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2021-11-25 20:25:49,679 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2021-11-25 20:25:49,680 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2021-11-25 20:25:49,680 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2021-11-25 20:25:49,681 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2021-11-25 20:25:49,681 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2021-11-25 20:25:49,682 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2021-11-25 20:25:49,682 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2021-11-25 20:25:49,683 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2021-11-25 20:25:49,683 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2021-11-25 20:25:49,684 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2021-11-25 20:25:49,684 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2021-11-25 20:25:49,685 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2021-11-25 20:25:49,685 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2021-11-25 20:25:49,686 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2021-11-25 20:25:49,686 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2021-11-25 20:25:49,687 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2021-11-25 20:25:49,687 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2021-11-25 20:25:49,688 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2021-11-25 20:25:49,688 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2021-11-25 20:25:49,688 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2021-11-25 20:25:49,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2021-11-25 20:25:49,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2021-11-25 20:25:49,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2021-11-25 20:25:49,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2021-11-25 20:25:49,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2021-11-25 20:25:49,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2021-11-25 20:25:49,692 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2021-11-25 20:25:49,692 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2021-11-25 20:25:49,693 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2021-11-25 20:25:49,693 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2021-11-25 20:25:49,694 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2021-11-25 20:25:49,694 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2021-11-25 20:25:49,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2021-11-25 20:25:49,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2021-11-25 20:25:49,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2021-11-25 20:25:49,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2021-11-25 20:25:49,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2021-11-25 20:25:49,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2021-11-25 20:25:49,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2021-11-25 20:25:49,698 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2021-11-25 20:25:49,698 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2021-11-25 20:25:49,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:25:49,933 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:25:49,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:49 WrapperNode [2021-11-25 20:25:49,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:25:49,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:25:49,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:25:49,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:25:49,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:49" (1/1) ... [2021-11-25 20:25:50,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:49" (1/1) ... [2021-11-25 20:25:50,254 INFO L137 Inliner]: procedures = 516, calls = 1379, calls flagged for inlining = 239, calls inlined = 169, statements flattened = 3148 [2021-11-25 20:25:50,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:25:50,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:25:50,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:25:50,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:25:50,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:49" (1/1) ... [2021-11-25 20:25:50,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:49" (1/1) ... [2021-11-25 20:25:50,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:49" (1/1) ... [2021-11-25 20:25:50,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:49" (1/1) ... [2021-11-25 20:25:50,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:49" (1/1) ... [2021-11-25 20:25:50,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:49" (1/1) ... [2021-11-25 20:25:50,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:49" (1/1) ... [2021-11-25 20:25:50,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:25:50,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:25:50,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:25:50,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:25:50,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:49" (1/1) ... [2021-11-25 20:25:50,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:25:50,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:25:50,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:25:50,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:25:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2021-11-25 20:25:50,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2021-11-25 20:25:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 20:25:50,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 20:25:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 20:25:50,570 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 20:25:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_disable_irq [2021-11-25 20:25:50,570 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_disable_irq [2021-11-25 20:25:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_async [2021-11-25 20:25:50,570 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_async [2021-11-25 20:25:50,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:25:50,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:25:50,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 20:25:50,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 20:25:50,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 20:25:50,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 20:25:50,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-25 20:25:50,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-25 20:25:50,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 20:25:50,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 20:25:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_read_status [2021-11-25 20:25:50,573 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_read_status [2021-11-25 20:25:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:25:50,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:25:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_read_data [2021-11-25 20:25:50,574 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_read_data [2021-11-25 20:25:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:25:50,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:25:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-25 20:25:50,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-25 20:25:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:25:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-25 20:25:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-25 20:25:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_data_reverse [2021-11-25 20:25:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_data_reverse [2021-11-25 20:25:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:25:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:25:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-25 20:25:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-25 20:25:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:25:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:25:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-11-25 20:25:50,577 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-11-25 20:25:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 20:25:50,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 20:25:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:25:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 20:25:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 20:25:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 20:25:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 20:25:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 20:25:50,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 20:25:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 20:25:50,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 20:25:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 20:25:50,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 20:25:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure submit_async_request [2021-11-25 20:25:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_async_request [2021-11-25 20:25:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-25 20:25:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-25 20:25:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 20:25:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 20:25:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:25:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:25:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:25:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:25:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure change_mode [2021-11-25 20:25:50,582 INFO L138 BoogieDeclarations]: Found implementation of procedure change_mode [2021-11-25 20:25:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:25:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 20:25:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:25:50,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:25:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:25:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:25:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_dev_usb_put_dev [2021-11-25 20:25:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_dev_usb_put_dev [2021-11-25 20:25:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-25 20:25:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-25 20:25:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 20:25:50,584 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 20:25:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 20:25:50,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 20:25:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure parport_generic_irq [2021-11-25 20:25:50,585 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_generic_irq [2021-11-25 20:25:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:25:50,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:25:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure get_1284_register [2021-11-25 20:25:50,585 INFO L138 BoogieDeclarations]: Found implementation of procedure get_1284_register [2021-11-25 20:25:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-25 20:25:50,586 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-25 20:25:50,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:25:50,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:25:50,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:25:50,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:25:50,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_asynclock_of_parport_uss720_private [2021-11-25 20:25:50,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_asynclock_of_parport_uss720_private [2021-11-25 20:25:50,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 20:25:50,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 20:25:50,587 INFO L130 BoogieDeclarations]: Found specification of procedure set_1284_register [2021-11-25 20:25:50,587 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1284_register [2021-11-25 20:25:50,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-25 20:25:50,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-25 20:25:50,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 20:25:50,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 20:25:50,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:25:50,588 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 20:25:50,589 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 20:25:50,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 20:25:50,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 20:25:50,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:25:50,589 INFO L130 BoogieDeclarations]: Found specification of procedure async_complete [2021-11-25 20:25:50,590 INFO L138 BoogieDeclarations]: Found implementation of procedure async_complete [2021-11-25 20:25:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_read_control [2021-11-25 20:25:50,590 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_read_control [2021-11-25 20:25:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:25:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 20:25:50,590 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 20:25:50,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 20:25:50,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 20:25:50,591 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_enable_irq [2021-11-25 20:25:50,591 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_enable_irq [2021-11-25 20:25:50,592 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-25 20:25:50,592 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-25 20:25:50,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:25:50,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:25:50,592 INFO L130 BoogieDeclarations]: Found specification of procedure clear_epp_timeout [2021-11-25 20:25:50,593 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_epp_timeout [2021-11-25 20:25:50,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 20:25:50,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 20:25:50,593 INFO L130 BoogieDeclarations]: Found specification of procedure uss720_disconnect [2021-11-25 20:25:50,593 INFO L138 BoogieDeclarations]: Found implementation of procedure uss720_disconnect [2021-11-25 20:25:50,593 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_data_forward [2021-11-25 20:25:50,594 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_data_forward [2021-11-25 20:25:50,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-25 20:25:50,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-25 20:25:50,594 INFO L130 BoogieDeclarations]: Found specification of procedure kill_all_async_requests_priv [2021-11-25 20:25:50,594 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_all_async_requests_priv [2021-11-25 20:25:50,594 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-11-25 20:25:50,595 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-11-25 20:25:50,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 20:25:50,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 20:25:50,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 20:25:50,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 20:25:50,595 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 20:25:50,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 20:25:50,596 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-25 20:25:50,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-25 20:25:50,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 20:25:50,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 20:25:50,596 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 20:25:50,597 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 20:25:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:25:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 20:25:50,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 20:25:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:25:50,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:25:50,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 20:25:50,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 20:25:50,598 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2021-11-25 20:25:50,598 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2021-11-25 20:25:50,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:25:50,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:25:50,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 20:25:50,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 20:25:50,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:25:51,252 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:25:51,256 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:25:52,015 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:25:54,194 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:25:54,710 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:25:54,710 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 20:25:54,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:25:54 BoogieIcfgContainer [2021-11-25 20:25:54,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:25:54,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:25:54,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:25:54,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:25:54,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:25:46" (1/3) ... [2021-11-25 20:25:54,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a37a64f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:25:54, skipping insertion in model container [2021-11-25 20:25:54,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:49" (2/3) ... [2021-11-25 20:25:54,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a37a64f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:25:54, skipping insertion in model container [2021-11-25 20:25:54,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:25:54" (3/3) ... [2021-11-25 20:25:54,729 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2021-11-25 20:25:54,735 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:25:54,736 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2021-11-25 20:25:54,812 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:25:54,827 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:25:54,834 INFO L340 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2021-11-25 20:25:54,877 INFO L276 IsEmpty]: Start isEmpty. Operand has 856 states, 498 states have (on average 1.3714859437751004) internal successors, (683), 547 states have internal predecessors, (683), 251 states have call successors, (251), 74 states have call predecessors, (251), 73 states have return successors, (247), 241 states have call predecessors, (247), 247 states have call successors, (247) [2021-11-25 20:25:54,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-25 20:25:54,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:54,887 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:54,887 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:25:54,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:54,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1624588258, now seen corresponding path program 1 times [2021-11-25 20:25:54,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:54,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762694461] [2021-11-25 20:25:54,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:54,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:55,583 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:25:55,597 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:55,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762694461] [2021-11-25 20:25:55,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762694461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:55,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:25:55,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:25:55,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208205517] [2021-11-25 20:25:55,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:55,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:25:55,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:55,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:25:55,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:25:55,651 INFO L87 Difference]: Start difference. First operand has 856 states, 498 states have (on average 1.3714859437751004) internal successors, (683), 547 states have internal predecessors, (683), 251 states have call successors, (251), 74 states have call predecessors, (251), 73 states have return successors, (247), 241 states have call predecessors, (247), 247 states have call successors, (247) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 20:25:56,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:56,900 INFO L93 Difference]: Finished difference Result 1669 states and 2443 transitions. [2021-11-25 20:25:56,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:25:56,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 51 [2021-11-25 20:25:56,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:56,932 INFO L225 Difference]: With dead ends: 1669 [2021-11-25 20:25:56,932 INFO L226 Difference]: Without dead ends: 842 [2021-11-25 20:25:56,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:25:56,959 INFO L933 BasicCegarLoop]: 984 mSDtfsCounter, 1123 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 1968 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:56,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1125 Valid, 1968 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-25 20:25:56,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2021-11-25 20:25:57,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 842. [2021-11-25 20:25:57,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 491 states have (on average 1.2993890020366599) internal successors, (638), 536 states have internal predecessors, (638), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2021-11-25 20:25:57,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1130 transitions. [2021-11-25 20:25:57,102 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1130 transitions. Word has length 51 [2021-11-25 20:25:57,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:57,105 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1130 transitions. [2021-11-25 20:25:57,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 20:25:57,105 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1130 transitions. [2021-11-25 20:25:57,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-25 20:25:57,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:57,110 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:57,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:25:57,110 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:25:57,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:57,111 INFO L85 PathProgramCache]: Analyzing trace with hash 450663329, now seen corresponding path program 1 times [2021-11-25 20:25:57,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:57,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141289113] [2021-11-25 20:25:57,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:57,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:57,331 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:25:57,332 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:57,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141289113] [2021-11-25 20:25:57,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141289113] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:57,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:25:57,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:25:57,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17034075] [2021-11-25 20:25:57,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:57,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:25:57,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:57,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:25:57,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:25:57,336 INFO L87 Difference]: Start difference. First operand 842 states and 1130 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 20:25:58,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:58,257 INFO L93 Difference]: Finished difference Result 842 states and 1130 transitions. [2021-11-25 20:25:58,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:25:58,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2021-11-25 20:25:58,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:58,268 INFO L225 Difference]: With dead ends: 842 [2021-11-25 20:25:58,268 INFO L226 Difference]: Without dead ends: 840 [2021-11-25 20:25:58,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:25:58,271 INFO L933 BasicCegarLoop]: 968 mSDtfsCounter, 1105 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:58,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1107 Valid, 1936 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 20:25:58,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2021-11-25 20:25:58,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 840. [2021-11-25 20:25:58,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 490 states have (on average 1.2979591836734694) internal successors, (636), 534 states have internal predecessors, (636), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2021-11-25 20:25:58,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1128 transitions. [2021-11-25 20:25:58,340 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1128 transitions. Word has length 56 [2021-11-25 20:25:58,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:58,341 INFO L470 AbstractCegarLoop]: Abstraction has 840 states and 1128 transitions. [2021-11-25 20:25:58,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 20:25:58,342 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1128 transitions. [2021-11-25 20:25:58,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-25 20:25:58,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:58,345 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:58,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:25:58,346 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:25:58,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:58,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1540021681, now seen corresponding path program 1 times [2021-11-25 20:25:58,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:58,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26015711] [2021-11-25 20:25:58,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:58,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:58,544 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:25:58,544 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:58,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26015711] [2021-11-25 20:25:58,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26015711] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:58,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:25:58,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:25:58,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305176126] [2021-11-25 20:25:58,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:58,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:25:58,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:58,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:25:58,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:25:58,547 INFO L87 Difference]: Start difference. First operand 840 states and 1128 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 20:25:59,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:59,535 INFO L93 Difference]: Finished difference Result 840 states and 1128 transitions. [2021-11-25 20:25:59,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:25:59,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2021-11-25 20:25:59,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:59,546 INFO L225 Difference]: With dead ends: 840 [2021-11-25 20:25:59,546 INFO L226 Difference]: Without dead ends: 838 [2021-11-25 20:25:59,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:25:59,548 INFO L933 BasicCegarLoop]: 966 mSDtfsCounter, 1102 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:59,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1104 Valid, 1932 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 20:25:59,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2021-11-25 20:25:59,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2021-11-25 20:25:59,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 489 states have (on average 1.296523517382413) internal successors, (634), 532 states have internal predecessors, (634), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2021-11-25 20:25:59,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1126 transitions. [2021-11-25 20:25:59,661 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1126 transitions. Word has length 61 [2021-11-25 20:25:59,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:59,662 INFO L470 AbstractCegarLoop]: Abstraction has 838 states and 1126 transitions. [2021-11-25 20:25:59,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 20:25:59,663 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1126 transitions. [2021-11-25 20:25:59,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 20:25:59,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:59,665 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:59,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:25:59,665 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:25:59,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:59,666 INFO L85 PathProgramCache]: Analyzing trace with hash 264493375, now seen corresponding path program 1 times [2021-11-25 20:25:59,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:59,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547630499] [2021-11-25 20:25:59,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:59,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:59,835 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:25:59,835 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:59,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547630499] [2021-11-25 20:25:59,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547630499] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:59,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:25:59,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:25:59,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727021113] [2021-11-25 20:25:59,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:59,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:25:59,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:59,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:25:59,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:25:59,838 INFO L87 Difference]: Start difference. First operand 838 states and 1126 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 20:26:00,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:00,933 INFO L93 Difference]: Finished difference Result 838 states and 1126 transitions. [2021-11-25 20:26:00,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:00,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2021-11-25 20:26:00,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:00,942 INFO L225 Difference]: With dead ends: 838 [2021-11-25 20:26:00,943 INFO L226 Difference]: Without dead ends: 836 [2021-11-25 20:26:00,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:00,945 INFO L933 BasicCegarLoop]: 964 mSDtfsCounter, 1099 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:00,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1101 Valid, 1928 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-25 20:26:00,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2021-11-25 20:26:00,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 836. [2021-11-25 20:26:01,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 488 states have (on average 1.2950819672131149) internal successors, (632), 530 states have internal predecessors, (632), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2021-11-25 20:26:01,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1124 transitions. [2021-11-25 20:26:01,012 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1124 transitions. Word has length 66 [2021-11-25 20:26:01,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:01,013 INFO L470 AbstractCegarLoop]: Abstraction has 836 states and 1124 transitions. [2021-11-25 20:26:01,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 20:26:01,013 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1124 transitions. [2021-11-25 20:26:01,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-25 20:26:01,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:01,015 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:01,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:26:01,016 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:01,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:01,017 INFO L85 PathProgramCache]: Analyzing trace with hash 788577020, now seen corresponding path program 1 times [2021-11-25 20:26:01,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:01,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856089825] [2021-11-25 20:26:01,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:01,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:01,229 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:26:01,230 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:01,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856089825] [2021-11-25 20:26:01,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856089825] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:01,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:01,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:26:01,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214591316] [2021-11-25 20:26:01,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:01,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:01,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:01,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:01,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:01,232 INFO L87 Difference]: Start difference. First operand 836 states and 1124 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 20:26:02,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:02,136 INFO L93 Difference]: Finished difference Result 836 states and 1124 transitions. [2021-11-25 20:26:02,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:02,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2021-11-25 20:26:02,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:02,146 INFO L225 Difference]: With dead ends: 836 [2021-11-25 20:26:02,146 INFO L226 Difference]: Without dead ends: 834 [2021-11-25 20:26:02,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:02,148 INFO L933 BasicCegarLoop]: 962 mSDtfsCounter, 1096 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:02,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1098 Valid, 1924 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 20:26:02,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2021-11-25 20:26:02,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 834. [2021-11-25 20:26:02,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 487 states have (on average 1.2936344969199178) internal successors, (630), 528 states have internal predecessors, (630), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2021-11-25 20:26:02,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1122 transitions. [2021-11-25 20:26:02,231 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1122 transitions. Word has length 71 [2021-11-25 20:26:02,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:02,232 INFO L470 AbstractCegarLoop]: Abstraction has 834 states and 1122 transitions. [2021-11-25 20:26:02,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 20:26:02,233 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1122 transitions. [2021-11-25 20:26:02,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-25 20:26:02,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:02,235 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:02,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:26:02,236 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:02,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:02,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1537468308, now seen corresponding path program 1 times [2021-11-25 20:26:02,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:02,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988110750] [2021-11-25 20:26:02,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:02,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:02,496 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:26:02,496 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:02,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988110750] [2021-11-25 20:26:02,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988110750] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:02,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:02,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:26:02,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484337522] [2021-11-25 20:26:02,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:02,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:02,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:02,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:02,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:02,500 INFO L87 Difference]: Start difference. First operand 834 states and 1122 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 20:26:03,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:03,464 INFO L93 Difference]: Finished difference Result 834 states and 1122 transitions. [2021-11-25 20:26:03,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:03,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2021-11-25 20:26:03,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:03,471 INFO L225 Difference]: With dead ends: 834 [2021-11-25 20:26:03,471 INFO L226 Difference]: Without dead ends: 832 [2021-11-25 20:26:03,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:03,473 INFO L933 BasicCegarLoop]: 960 mSDtfsCounter, 1093 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:03,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 1920 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 20:26:03,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2021-11-25 20:26:03,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2021-11-25 20:26:03,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 486 states have (on average 1.2921810699588476) internal successors, (628), 526 states have internal predecessors, (628), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2021-11-25 20:26:03,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1120 transitions. [2021-11-25 20:26:03,534 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1120 transitions. Word has length 76 [2021-11-25 20:26:03,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:03,535 INFO L470 AbstractCegarLoop]: Abstraction has 832 states and 1120 transitions. [2021-11-25 20:26:03,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 20:26:03,536 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1120 transitions. [2021-11-25 20:26:03,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-25 20:26:03,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:03,538 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:03,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:26:03,538 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:03,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:03,539 INFO L85 PathProgramCache]: Analyzing trace with hash 530054546, now seen corresponding path program 1 times [2021-11-25 20:26:03,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:03,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830985641] [2021-11-25 20:26:03,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:03,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:03,700 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:26:03,700 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:03,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830985641] [2021-11-25 20:26:03,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830985641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:03,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:03,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:26:03,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299939058] [2021-11-25 20:26:03,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:03,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:03,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:03,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:03,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:03,703 INFO L87 Difference]: Start difference. First operand 832 states and 1120 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 20:26:04,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:04,720 INFO L93 Difference]: Finished difference Result 832 states and 1120 transitions. [2021-11-25 20:26:04,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:04,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 81 [2021-11-25 20:26:04,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:04,728 INFO L225 Difference]: With dead ends: 832 [2021-11-25 20:26:04,728 INFO L226 Difference]: Without dead ends: 830 [2021-11-25 20:26:04,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:04,730 INFO L933 BasicCegarLoop]: 958 mSDtfsCounter, 1090 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 1916 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:04,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1092 Valid, 1916 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 20:26:04,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2021-11-25 20:26:04,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2021-11-25 20:26:04,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 485 states have (on average 1.2907216494845362) internal successors, (626), 524 states have internal predecessors, (626), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2021-11-25 20:26:04,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1118 transitions. [2021-11-25 20:26:04,793 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1118 transitions. Word has length 81 [2021-11-25 20:26:04,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:04,794 INFO L470 AbstractCegarLoop]: Abstraction has 830 states and 1118 transitions. [2021-11-25 20:26:04,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 20:26:04,795 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1118 transitions. [2021-11-25 20:26:04,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-25 20:26:04,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:04,797 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:04,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:26:04,798 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:04,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:04,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1740157934, now seen corresponding path program 1 times [2021-11-25 20:26:04,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:04,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910590158] [2021-11-25 20:26:04,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:04,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:04,958 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:26:04,958 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:04,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910590158] [2021-11-25 20:26:04,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910590158] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:04,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:04,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:26:04,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335792625] [2021-11-25 20:26:04,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:04,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:04,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:04,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:04,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:04,961 INFO L87 Difference]: Start difference. First operand 830 states and 1118 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 20:26:06,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:06,712 INFO L93 Difference]: Finished difference Result 1598 states and 2221 transitions. [2021-11-25 20:26:06,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:26:06,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 86 [2021-11-25 20:26:06,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:06,729 INFO L225 Difference]: With dead ends: 1598 [2021-11-25 20:26:06,730 INFO L226 Difference]: Without dead ends: 1596 [2021-11-25 20:26:06,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:06,732 INFO L933 BasicCegarLoop]: 1229 mSDtfsCounter, 1084 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 3416 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:06,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 3416 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 20:26:06,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2021-11-25 20:26:06,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1474. [2021-11-25 20:26:06,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 873 states have (on average 1.2989690721649485) internal successors, (1134), 922 states have internal predecessors, (1134), 443 states have call successors, (443), 133 states have call predecessors, (443), 132 states have return successors, (520), 429 states have call predecessors, (520), 441 states have call successors, (520) [2021-11-25 20:26:06,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2097 transitions. [2021-11-25 20:26:06,917 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2097 transitions. Word has length 86 [2021-11-25 20:26:06,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:06,920 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 2097 transitions. [2021-11-25 20:26:06,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 20:26:06,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2097 transitions. [2021-11-25 20:26:06,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-25 20:26:06,925 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:06,925 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:06,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:26:06,926 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:06,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:06,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1658266663, now seen corresponding path program 1 times [2021-11-25 20:26:06,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:06,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232398344] [2021-11-25 20:26:06,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:06,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:07,226 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-25 20:26:07,227 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:07,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232398344] [2021-11-25 20:26:07,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232398344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:07,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:07,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:26:07,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913465358] [2021-11-25 20:26:07,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:07,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:26:07,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:07,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:26:07,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:26:07,230 INFO L87 Difference]: Start difference. First operand 1474 states and 2097 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 20:26:09,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:09,741 INFO L93 Difference]: Finished difference Result 1474 states and 2097 transitions. [2021-11-25 20:26:09,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:26:09,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 97 [2021-11-25 20:26:09,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:09,756 INFO L225 Difference]: With dead ends: 1474 [2021-11-25 20:26:09,756 INFO L226 Difference]: Without dead ends: 1472 [2021-11-25 20:26:09,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:26:09,759 INFO L933 BasicCegarLoop]: 957 mSDtfsCounter, 1070 mSDsluCounter, 2844 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 3335 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:09,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1073 Valid, 3335 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 20:26:09,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2021-11-25 20:26:09,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2021-11-25 20:26:09,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 872 states have (on average 1.2970183486238531) internal successors, (1131), 920 states have internal predecessors, (1131), 443 states have call successors, (443), 133 states have call predecessors, (443), 132 states have return successors, (520), 429 states have call predecessors, (520), 441 states have call successors, (520) [2021-11-25 20:26:09,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2094 transitions. [2021-11-25 20:26:09,888 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2094 transitions. Word has length 97 [2021-11-25 20:26:09,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:09,889 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 2094 transitions. [2021-11-25 20:26:09,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 20:26:09,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2094 transitions. [2021-11-25 20:26:09,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-25 20:26:09,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:09,891 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:09,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 20:26:09,892 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:09,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:09,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1549348171, now seen corresponding path program 1 times [2021-11-25 20:26:09,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:09,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900390811] [2021-11-25 20:26:09,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:09,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:10,081 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:26:10,082 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:10,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900390811] [2021-11-25 20:26:10,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900390811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:10,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:10,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:26:10,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481680404] [2021-11-25 20:26:10,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:10,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:10,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:10,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:10,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:10,084 INFO L87 Difference]: Start difference. First operand 1472 states and 2094 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 20:26:11,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:11,178 INFO L93 Difference]: Finished difference Result 1472 states and 2094 transitions. [2021-11-25 20:26:11,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:11,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2021-11-25 20:26:11,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:11,194 INFO L225 Difference]: With dead ends: 1472 [2021-11-25 20:26:11,195 INFO L226 Difference]: Without dead ends: 1470 [2021-11-25 20:26:11,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:11,198 INFO L933 BasicCegarLoop]: 954 mSDtfsCounter, 1083 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:11,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1085 Valid, 1908 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 20:26:11,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2021-11-25 20:26:11,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1470. [2021-11-25 20:26:11,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 871 states have (on average 1.2950631458094144) internal successors, (1128), 918 states have internal predecessors, (1128), 443 states have call successors, (443), 133 states have call predecessors, (443), 132 states have return successors, (520), 429 states have call predecessors, (520), 441 states have call successors, (520) [2021-11-25 20:26:11,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 2091 transitions. [2021-11-25 20:26:11,328 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 2091 transitions. Word has length 88 [2021-11-25 20:26:11,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:11,329 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 2091 transitions. [2021-11-25 20:26:11,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 20:26:11,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 2091 transitions. [2021-11-25 20:26:11,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-25 20:26:11,332 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:11,332 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:11,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 20:26:11,333 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:11,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:11,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1882646544, now seen corresponding path program 1 times [2021-11-25 20:26:11,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:11,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478696953] [2021-11-25 20:26:11,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:11,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:11,655 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-25 20:26:11,656 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:11,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478696953] [2021-11-25 20:26:11,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478696953] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:11,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:11,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:26:11,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250543189] [2021-11-25 20:26:11,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:11,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:26:11,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:11,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:26:11,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:11,659 INFO L87 Difference]: Start difference. First operand 1470 states and 2091 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-25 20:26:13,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:13,709 INFO L93 Difference]: Finished difference Result 2885 states and 4234 transitions. [2021-11-25 20:26:13,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:26:13,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 97 [2021-11-25 20:26:13,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:13,726 INFO L225 Difference]: With dead ends: 2885 [2021-11-25 20:26:13,726 INFO L226 Difference]: Without dead ends: 1482 [2021-11-25 20:26:13,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:13,740 INFO L933 BasicCegarLoop]: 966 mSDtfsCounter, 2 mSDsluCounter, 3360 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3853 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:13,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 3853 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-25 20:26:13,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2021-11-25 20:26:13,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1478. [2021-11-25 20:26:13,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 877 states have (on average 1.2930444697833523) internal successors, (1134), 924 states have internal predecessors, (1134), 443 states have call successors, (443), 133 states have call predecessors, (443), 134 states have return successors, (524), 431 states have call predecessors, (524), 441 states have call successors, (524) [2021-11-25 20:26:13,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2101 transitions. [2021-11-25 20:26:13,939 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2101 transitions. Word has length 97 [2021-11-25 20:26:13,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:13,940 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 2101 transitions. [2021-11-25 20:26:13,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-25 20:26:13,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2101 transitions. [2021-11-25 20:26:13,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-25 20:26:13,946 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:13,947 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:13,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 20:26:13,947 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:13,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:13,948 INFO L85 PathProgramCache]: Analyzing trace with hash -760372180, now seen corresponding path program 1 times [2021-11-25 20:26:13,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:13,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206980051] [2021-11-25 20:26:13,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:13,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:14,127 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:26:14,127 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:14,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206980051] [2021-11-25 20:26:14,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206980051] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:14,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:14,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:26:14,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912370574] [2021-11-25 20:26:14,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:14,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:14,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:14,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:14,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:14,130 INFO L87 Difference]: Start difference. First operand 1478 states and 2101 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 20:26:15,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:15,080 INFO L93 Difference]: Finished difference Result 1478 states and 2101 transitions. [2021-11-25 20:26:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:15,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2021-11-25 20:26:15,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:15,093 INFO L225 Difference]: With dead ends: 1478 [2021-11-25 20:26:15,094 INFO L226 Difference]: Without dead ends: 1476 [2021-11-25 20:26:15,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:15,096 INFO L933 BasicCegarLoop]: 952 mSDtfsCounter, 1082 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:15,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1084 Valid, 1904 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 20:26:15,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2021-11-25 20:26:15,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1476. [2021-11-25 20:26:15,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 876 states have (on average 1.2922374429223744) internal successors, (1132), 922 states have internal predecessors, (1132), 443 states have call successors, (443), 133 states have call predecessors, (443), 134 states have return successors, (524), 431 states have call predecessors, (524), 441 states have call successors, (524) [2021-11-25 20:26:15,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 2099 transitions. [2021-11-25 20:26:15,216 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 2099 transitions. Word has length 93 [2021-11-25 20:26:15,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:15,217 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 2099 transitions. [2021-11-25 20:26:15,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 20:26:15,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 2099 transitions. [2021-11-25 20:26:15,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-25 20:26:15,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:15,220 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:15,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 20:26:15,220 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:15,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:15,221 INFO L85 PathProgramCache]: Analyzing trace with hash 997812776, now seen corresponding path program 1 times [2021-11-25 20:26:15,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:15,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114151151] [2021-11-25 20:26:15,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:15,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-25 20:26:15,389 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:15,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114151151] [2021-11-25 20:26:15,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114151151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:15,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:15,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:26:15,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671809126] [2021-11-25 20:26:15,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:15,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:26:15,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:15,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:26:15,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:26:15,392 INFO L87 Difference]: Start difference. First operand 1476 states and 2099 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 20:26:16,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:16,055 INFO L93 Difference]: Finished difference Result 2908 states and 4385 transitions. [2021-11-25 20:26:16,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:26:16,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 103 [2021-11-25 20:26:16,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:16,069 INFO L225 Difference]: With dead ends: 2908 [2021-11-25 20:26:16,069 INFO L226 Difference]: Without dead ends: 1470 [2021-11-25 20:26:16,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:26:16,082 INFO L933 BasicCegarLoop]: 948 mSDtfsCounter, 1062 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:16,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1062 Valid, 948 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 20:26:16,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2021-11-25 20:26:16,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1470. [2021-11-25 20:26:16,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 871 states have (on average 1.2893226176808266) internal successors, (1123), 916 states have internal predecessors, (1123), 443 states have call successors, (443), 133 states have call predecessors, (443), 134 states have return successors, (524), 431 states have call predecessors, (524), 441 states have call successors, (524) [2021-11-25 20:26:16,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 2090 transitions. [2021-11-25 20:26:16,207 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 2090 transitions. Word has length 103 [2021-11-25 20:26:16,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:16,208 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 2090 transitions. [2021-11-25 20:26:16,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 20:26:16,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 2090 transitions. [2021-11-25 20:26:16,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-25 20:26:16,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:16,211 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-25 20:26:16,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 20:26:16,212 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:16,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:16,213 INFO L85 PathProgramCache]: Analyzing trace with hash -752290044, now seen corresponding path program 1 times [2021-11-25 20:26:16,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:16,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544430884] [2021-11-25 20:26:16,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:16,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:16,643 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-25 20:26:16,643 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:16,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544430884] [2021-11-25 20:26:16,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544430884] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:16,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:16,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 20:26:16,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513352844] [2021-11-25 20:26:16,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:16,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 20:26:16,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:16,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 20:26:16,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:26:16,646 INFO L87 Difference]: Start difference. First operand 1470 states and 2090 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-25 20:26:23,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:23,269 INFO L93 Difference]: Finished difference Result 2885 states and 4141 transitions. [2021-11-25 20:26:23,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 20:26:23,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2021-11-25 20:26:23,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:23,295 INFO L225 Difference]: With dead ends: 2885 [2021-11-25 20:26:23,295 INFO L226 Difference]: Without dead ends: 2883 [2021-11-25 20:26:23,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-25 20:26:23,298 INFO L933 BasicCegarLoop]: 1341 mSDtfsCounter, 1108 mSDsluCounter, 6138 mSDsCounter, 0 mSdLazyCounter, 3784 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 6432 SdHoareTripleChecker+Invalid, 3796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:23,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 6432 Invalid, 3796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3784 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2021-11-25 20:26:23,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2021-11-25 20:26:23,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 2554. [2021-11-25 20:26:23,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 1533 states have (on average 1.3007175472928898) internal successors, (1994), 1600 states have internal predecessors, (1994), 755 states have call successors, (755), 240 states have call predecessors, (755), 244 states have return successors, (911), 731 states have call predecessors, (911), 753 states have call successors, (911) [2021-11-25 20:26:23,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 3660 transitions. [2021-11-25 20:26:23,589 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 3660 transitions. Word has length 125 [2021-11-25 20:26:23,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:23,589 INFO L470 AbstractCegarLoop]: Abstraction has 2554 states and 3660 transitions. [2021-11-25 20:26:23,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-25 20:26:23,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 3660 transitions. [2021-11-25 20:26:23,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-25 20:26:23,593 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:23,593 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:23,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 20:26:23,594 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:23,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:23,594 INFO L85 PathProgramCache]: Analyzing trace with hash 11081953, now seen corresponding path program 1 times [2021-11-25 20:26:23,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:23,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835651385] [2021-11-25 20:26:23,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:23,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:23,732 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:26:23,732 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:23,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835651385] [2021-11-25 20:26:23,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835651385] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:23,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:23,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:26:23,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846277071] [2021-11-25 20:26:23,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:23,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:23,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:23,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:23,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:23,735 INFO L87 Difference]: Start difference. First operand 2554 states and 3660 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 20:26:24,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:24,534 INFO L93 Difference]: Finished difference Result 2554 states and 3660 transitions. [2021-11-25 20:26:24,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:24,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2021-11-25 20:26:24,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:24,557 INFO L225 Difference]: With dead ends: 2554 [2021-11-25 20:26:24,557 INFO L226 Difference]: Without dead ends: 2552 [2021-11-25 20:26:24,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:24,559 INFO L933 BasicCegarLoop]: 945 mSDtfsCounter, 1074 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:24,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1076 Valid, 1890 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 20:26:24,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2021-11-25 20:26:24,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2552. [2021-11-25 20:26:24,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 1532 states have (on average 1.3002610966057442) internal successors, (1992), 1598 states have internal predecessors, (1992), 755 states have call successors, (755), 240 states have call predecessors, (755), 244 states have return successors, (911), 731 states have call predecessors, (911), 753 states have call successors, (911) [2021-11-25 20:26:24,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3658 transitions. [2021-11-25 20:26:24,884 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3658 transitions. Word has length 98 [2021-11-25 20:26:24,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:24,886 INFO L470 AbstractCegarLoop]: Abstraction has 2552 states and 3658 transitions. [2021-11-25 20:26:24,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 20:26:24,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3658 transitions. [2021-11-25 20:26:24,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-25 20:26:24,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:24,891 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-25 20:26:24,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 20:26:24,892 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_usb_dev_usb_put_devErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:24,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:24,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1396084697, now seen corresponding path program 1 times [2021-11-25 20:26:24,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:24,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581793640] [2021-11-25 20:26:24,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:24,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:25,415 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-25 20:26:25,415 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:25,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581793640] [2021-11-25 20:26:25,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581793640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:25,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:25,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-25 20:26:25,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936258506] [2021-11-25 20:26:25,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:25,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 20:26:25,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:25,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 20:26:25,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:26:25,421 INFO L87 Difference]: Start difference. First operand 2552 states and 3658 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-25 20:26:33,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:33,898 INFO L93 Difference]: Finished difference Result 4081 states and 5880 transitions. [2021-11-25 20:26:33,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 20:26:33,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2021-11-25 20:26:33,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:33,939 INFO L225 Difference]: With dead ends: 4081 [2021-11-25 20:26:33,939 INFO L226 Difference]: Without dead ends: 4079 [2021-11-25 20:26:33,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-25 20:26:33,942 INFO L933 BasicCegarLoop]: 1411 mSDtfsCounter, 1170 mSDsluCounter, 6373 mSDsCounter, 0 mSdLazyCounter, 3973 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 6697 SdHoareTripleChecker+Invalid, 3987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:33,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1235 Valid, 6697 Invalid, 3987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3973 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2021-11-25 20:26:33,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4079 states. [2021-11-25 20:26:34,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4079 to 3697. [2021-11-25 20:26:34,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3697 states, 2230 states have (on average 1.3071748878923768) internal successors, (2915), 2315 states have internal predecessors, (2915), 1095 states have call successors, (1095), 345 states have call predecessors, (1095), 351 states have return successors, (1328), 1062 states have call predecessors, (1328), 1093 states have call successors, (1328) [2021-11-25 20:26:34,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3697 states to 3697 states and 5338 transitions. [2021-11-25 20:26:34,346 INFO L78 Accepts]: Start accepts. Automaton has 3697 states and 5338 transitions. Word has length 127 [2021-11-25 20:26:34,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:34,347 INFO L470 AbstractCegarLoop]: Abstraction has 3697 states and 5338 transitions. [2021-11-25 20:26:34,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-25 20:26:34,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3697 states and 5338 transitions. [2021-11-25 20:26:34,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-25 20:26:34,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:34,351 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:34,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 20:26:34,352 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:34,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:34,352 INFO L85 PathProgramCache]: Analyzing trace with hash -2057622700, now seen corresponding path program 1 times [2021-11-25 20:26:34,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:34,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428462498] [2021-11-25 20:26:34,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:34,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:34,515 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:26:34,516 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:34,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428462498] [2021-11-25 20:26:34,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428462498] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:34,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:34,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:26:34,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923840844] [2021-11-25 20:26:34,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:34,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:34,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:34,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:34,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:34,518 INFO L87 Difference]: Start difference. First operand 3697 states and 5338 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 20:26:35,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:35,280 INFO L93 Difference]: Finished difference Result 3697 states and 5338 transitions. [2021-11-25 20:26:35,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:35,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 103 [2021-11-25 20:26:35,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:35,314 INFO L225 Difference]: With dead ends: 3697 [2021-11-25 20:26:35,314 INFO L226 Difference]: Without dead ends: 3695 [2021-11-25 20:26:35,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:35,317 INFO L933 BasicCegarLoop]: 943 mSDtfsCounter, 1071 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:35,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1073 Valid, 1886 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 20:26:35,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3695 states. [2021-11-25 20:26:35,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3695 to 3695. [2021-11-25 20:26:35,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3695 states, 2229 states have (on average 1.306864064602961) internal successors, (2913), 2313 states have internal predecessors, (2913), 1095 states have call successors, (1095), 345 states have call predecessors, (1095), 351 states have return successors, (1328), 1062 states have call predecessors, (1328), 1093 states have call successors, (1328) [2021-11-25 20:26:35,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3695 states to 3695 states and 5336 transitions. [2021-11-25 20:26:35,724 INFO L78 Accepts]: Start accepts. Automaton has 3695 states and 5336 transitions. Word has length 103 [2021-11-25 20:26:35,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:35,724 INFO L470 AbstractCegarLoop]: Abstraction has 3695 states and 5336 transitions. [2021-11-25 20:26:35,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 20:26:35,725 INFO L276 IsEmpty]: Start isEmpty. Operand 3695 states and 5336 transitions. [2021-11-25 20:26:35,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-25 20:26:35,729 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:35,730 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-25 20:26:35,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 20:26:35,731 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:35,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:35,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1191793742, now seen corresponding path program 1 times [2021-11-25 20:26:35,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:35,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923005946] [2021-11-25 20:26:35,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:35,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:35,904 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-25 20:26:35,905 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:35,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923005946] [2021-11-25 20:26:35,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923005946] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:35,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:35,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:26:35,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612975783] [2021-11-25 20:26:35,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:35,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:26:35,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:35,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:26:35,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:26:35,908 INFO L87 Difference]: Start difference. First operand 3695 states and 5336 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 20:26:36,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:36,669 INFO L93 Difference]: Finished difference Result 6210 states and 8954 transitions. [2021-11-25 20:26:36,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:26:36,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 130 [2021-11-25 20:26:36,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:36,709 INFO L225 Difference]: With dead ends: 6210 [2021-11-25 20:26:36,709 INFO L226 Difference]: Without dead ends: 3687 [2021-11-25 20:26:36,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:26:36,727 INFO L933 BasicCegarLoop]: 939 mSDtfsCounter, 1087 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:36,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1087 Valid, 939 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 20:26:36,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2021-11-25 20:26:37,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3687. [2021-11-25 20:26:37,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3687 states, 2222 states have (on average 1.3051305130513051) internal successors, (2900), 2305 states have internal predecessors, (2900), 1095 states have call successors, (1095), 345 states have call predecessors, (1095), 351 states have return successors, (1328), 1062 states have call predecessors, (1328), 1093 states have call successors, (1328) [2021-11-25 20:26:37,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5323 transitions. [2021-11-25 20:26:37,132 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5323 transitions. Word has length 130 [2021-11-25 20:26:37,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:37,133 INFO L470 AbstractCegarLoop]: Abstraction has 3687 states and 5323 transitions. [2021-11-25 20:26:37,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 20:26:37,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5323 transitions. [2021-11-25 20:26:37,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-25 20:26:37,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:37,137 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:37,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 20:26:37,138 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:37,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:37,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1808024643, now seen corresponding path program 1 times [2021-11-25 20:26:37,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:37,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504962520] [2021-11-25 20:26:37,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:37,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:37,275 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:26:37,276 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:37,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504962520] [2021-11-25 20:26:37,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504962520] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:37,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:37,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:26:37,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609730704] [2021-11-25 20:26:37,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:37,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:37,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:37,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:37,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:37,280 INFO L87 Difference]: Start difference. First operand 3687 states and 5323 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 20:26:38,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:38,314 INFO L93 Difference]: Finished difference Result 3687 states and 5323 transitions. [2021-11-25 20:26:38,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:38,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 108 [2021-11-25 20:26:38,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:38,334 INFO L225 Difference]: With dead ends: 3687 [2021-11-25 20:26:38,335 INFO L226 Difference]: Without dead ends: 3685 [2021-11-25 20:26:38,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:38,337 INFO L933 BasicCegarLoop]: 936 mSDtfsCounter, 1063 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:38,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1065 Valid, 1872 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 20:26:38,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3685 states. [2021-11-25 20:26:38,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3685 to 3685. [2021-11-25 20:26:38,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3685 states, 2221 states have (on average 1.304817649707339) internal successors, (2898), 2303 states have internal predecessors, (2898), 1095 states have call successors, (1095), 345 states have call predecessors, (1095), 351 states have return successors, (1328), 1062 states have call predecessors, (1328), 1093 states have call successors, (1328) [2021-11-25 20:26:38,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3685 states to 3685 states and 5321 transitions. [2021-11-25 20:26:38,720 INFO L78 Accepts]: Start accepts. Automaton has 3685 states and 5321 transitions. Word has length 108 [2021-11-25 20:26:38,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:38,720 INFO L470 AbstractCegarLoop]: Abstraction has 3685 states and 5321 transitions. [2021-11-25 20:26:38,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 20:26:38,721 INFO L276 IsEmpty]: Start isEmpty. Operand 3685 states and 5321 transitions. [2021-11-25 20:26:38,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-25 20:26:38,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:38,726 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:38,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 20:26:38,726 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:38,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:38,727 INFO L85 PathProgramCache]: Analyzing trace with hash 551635978, now seen corresponding path program 1 times [2021-11-25 20:26:38,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:38,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226952488] [2021-11-25 20:26:38,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:38,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:38,904 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2021-11-25 20:26:38,904 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:38,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226952488] [2021-11-25 20:26:38,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226952488] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:26:38,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567936314] [2021-11-25 20:26:38,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:38,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:38,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:26:38,910 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:26:38,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:26:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:39,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 2078 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 20:26:39,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:39,960 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-25 20:26:39,960 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:26:39,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567936314] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:39,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:26:39,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-25 20:26:39,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622320737] [2021-11-25 20:26:39,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:39,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:26:39,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:39,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:26:39,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:26:39,963 INFO L87 Difference]: Start difference. First operand 3685 states and 5321 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 20:26:40,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:40,988 INFO L93 Difference]: Finished difference Result 6195 states and 8925 transitions. [2021-11-25 20:26:40,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:26:40,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2021-11-25 20:26:40,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:41,010 INFO L225 Difference]: With dead ends: 6195 [2021-11-25 20:26:41,010 INFO L226 Difference]: Without dead ends: 3691 [2021-11-25 20:26:41,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:26:41,028 INFO L933 BasicCegarLoop]: 944 mSDtfsCounter, 1032 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:41,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 994 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 20:26:41,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3691 states. [2021-11-25 20:26:41,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3691 to 3691. [2021-11-25 20:26:41,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3691 states, 2221 states have (on average 1.3021161638901395) internal successors, (2892), 2302 states have internal predecessors, (2892), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1065 states have call predecessors, (1331), 1096 states have call successors, (1331) [2021-11-25 20:26:41,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3691 states to 3691 states and 5321 transitions. [2021-11-25 20:26:41,383 INFO L78 Accepts]: Start accepts. Automaton has 3691 states and 5321 transitions. Word has length 135 [2021-11-25 20:26:41,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:41,384 INFO L470 AbstractCegarLoop]: Abstraction has 3691 states and 5321 transitions. [2021-11-25 20:26:41,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 20:26:41,384 INFO L276 IsEmpty]: Start isEmpty. Operand 3691 states and 5321 transitions. [2021-11-25 20:26:41,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-25 20:26:41,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:41,389 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:41,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 20:26:41,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:41,612 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:41,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:41,613 INFO L85 PathProgramCache]: Analyzing trace with hash -134362141, now seen corresponding path program 1 times [2021-11-25 20:26:41,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:41,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351339718] [2021-11-25 20:26:41,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:41,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:41,822 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:26:41,822 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:41,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351339718] [2021-11-25 20:26:41,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351339718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:41,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:41,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:26:41,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712115706] [2021-11-25 20:26:41,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:41,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:41,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:41,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:41,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:41,827 INFO L87 Difference]: Start difference. First operand 3691 states and 5321 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 20:26:42,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:42,827 INFO L93 Difference]: Finished difference Result 3691 states and 5321 transitions. [2021-11-25 20:26:42,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:42,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 113 [2021-11-25 20:26:42,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:42,845 INFO L225 Difference]: With dead ends: 3691 [2021-11-25 20:26:42,845 INFO L226 Difference]: Without dead ends: 3689 [2021-11-25 20:26:42,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:42,848 INFO L933 BasicCegarLoop]: 929 mSDtfsCounter, 1055 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:42,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1057 Valid, 1858 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 20:26:42,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3689 states. [2021-11-25 20:26:43,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3689 to 3689. [2021-11-25 20:26:43,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3689 states, 2220 states have (on average 1.3018018018018018) internal successors, (2890), 2300 states have internal predecessors, (2890), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1065 states have call predecessors, (1331), 1096 states have call successors, (1331) [2021-11-25 20:26:43,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5319 transitions. [2021-11-25 20:26:43,194 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 5319 transitions. Word has length 113 [2021-11-25 20:26:43,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:43,194 INFO L470 AbstractCegarLoop]: Abstraction has 3689 states and 5319 transitions. [2021-11-25 20:26:43,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 20:26:43,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 5319 transitions. [2021-11-25 20:26:43,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-25 20:26:43,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:43,200 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:43,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 20:26:43,201 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:43,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:43,201 INFO L85 PathProgramCache]: Analyzing trace with hash -503006849, now seen corresponding path program 1 times [2021-11-25 20:26:43,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:43,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796197336] [2021-11-25 20:26:43,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:43,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:26:43,338 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:43,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796197336] [2021-11-25 20:26:43,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796197336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:43,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:43,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:26:43,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405298691] [2021-11-25 20:26:43,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:43,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:43,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:43,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:43,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:43,342 INFO L87 Difference]: Start difference. First operand 3689 states and 5319 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 20:26:44,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:44,515 INFO L93 Difference]: Finished difference Result 3689 states and 5319 transitions. [2021-11-25 20:26:44,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:44,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 118 [2021-11-25 20:26:44,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:44,535 INFO L225 Difference]: With dead ends: 3689 [2021-11-25 20:26:44,535 INFO L226 Difference]: Without dead ends: 3687 [2021-11-25 20:26:44,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:44,540 INFO L933 BasicCegarLoop]: 927 mSDtfsCounter, 1052 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:44,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1054 Valid, 1854 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 20:26:44,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2021-11-25 20:26:45,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3687. [2021-11-25 20:26:45,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3687 states, 2219 states have (on average 1.3014871563767463) internal successors, (2888), 2298 states have internal predecessors, (2888), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1065 states have call predecessors, (1331), 1096 states have call successors, (1331) [2021-11-25 20:26:45,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5317 transitions. [2021-11-25 20:26:45,059 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5317 transitions. Word has length 118 [2021-11-25 20:26:45,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:45,060 INFO L470 AbstractCegarLoop]: Abstraction has 3687 states and 5317 transitions. [2021-11-25 20:26:45,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 20:26:45,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5317 transitions. [2021-11-25 20:26:45,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-25 20:26:45,067 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:45,067 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:45,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-25 20:26:45,067 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:45,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:45,068 INFO L85 PathProgramCache]: Analyzing trace with hash 896250763, now seen corresponding path program 1 times [2021-11-25 20:26:45,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:45,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329826910] [2021-11-25 20:26:45,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:45,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:45,314 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-25 20:26:45,314 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:45,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329826910] [2021-11-25 20:26:45,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329826910] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:45,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:45,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:26:45,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301254712] [2021-11-25 20:26:45,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:45,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:26:45,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:45,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:26:45,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:45,316 INFO L87 Difference]: Start difference. First operand 3687 states and 5317 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 20:26:46,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:46,982 INFO L93 Difference]: Finished difference Result 7265 states and 11246 transitions. [2021-11-25 20:26:46,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:26:46,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 120 [2021-11-25 20:26:46,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:47,004 INFO L225 Difference]: With dead ends: 7265 [2021-11-25 20:26:47,005 INFO L226 Difference]: Without dead ends: 3711 [2021-11-25 20:26:47,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:47,033 INFO L933 BasicCegarLoop]: 943 mSDtfsCounter, 2 mSDsluCounter, 3293 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3762 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:47,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 3762 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 20:26:47,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3711 states. [2021-11-25 20:26:47,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3711 to 3699. [2021-11-25 20:26:47,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3699 states, 2231 states have (on average 1.2998655311519498) internal successors, (2900), 2304 states have internal predecessors, (2900), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1071 states have call predecessors, (1331), 1096 states have call successors, (1331) [2021-11-25 20:26:47,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3699 states to 3699 states and 5329 transitions. [2021-11-25 20:26:47,492 INFO L78 Accepts]: Start accepts. Automaton has 3699 states and 5329 transitions. Word has length 120 [2021-11-25 20:26:47,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:47,492 INFO L470 AbstractCegarLoop]: Abstraction has 3699 states and 5329 transitions. [2021-11-25 20:26:47,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 20:26:47,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3699 states and 5329 transitions. [2021-11-25 20:26:47,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-25 20:26:47,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:47,499 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:47,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-25 20:26:47,500 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:47,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:47,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1346151852, now seen corresponding path program 1 times [2021-11-25 20:26:47,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:47,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847253911] [2021-11-25 20:26:47,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:47,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:47,648 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:26:47,648 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:47,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847253911] [2021-11-25 20:26:47,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847253911] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:47,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:47,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:26:47,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842052827] [2021-11-25 20:26:47,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:47,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:47,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:47,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:47,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:47,652 INFO L87 Difference]: Start difference. First operand 3699 states and 5329 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 20:26:48,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:48,895 INFO L93 Difference]: Finished difference Result 3699 states and 5329 transitions. [2021-11-25 20:26:48,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:48,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 123 [2021-11-25 20:26:48,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:48,914 INFO L225 Difference]: With dead ends: 3699 [2021-11-25 20:26:48,914 INFO L226 Difference]: Without dead ends: 3697 [2021-11-25 20:26:48,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:48,918 INFO L933 BasicCegarLoop]: 925 mSDtfsCounter, 1049 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:48,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 1850 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 20:26:48,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2021-11-25 20:26:49,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3697. [2021-11-25 20:26:49,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3697 states, 2230 states have (on average 1.2995515695067266) internal successors, (2898), 2302 states have internal predecessors, (2898), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1071 states have call predecessors, (1331), 1096 states have call successors, (1331) [2021-11-25 20:26:49,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3697 states to 3697 states and 5327 transitions. [2021-11-25 20:26:49,382 INFO L78 Accepts]: Start accepts. Automaton has 3697 states and 5327 transitions. Word has length 123 [2021-11-25 20:26:49,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:49,382 INFO L470 AbstractCegarLoop]: Abstraction has 3697 states and 5327 transitions. [2021-11-25 20:26:49,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 20:26:49,383 INFO L276 IsEmpty]: Start isEmpty. Operand 3697 states and 5327 transitions. [2021-11-25 20:26:49,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-25 20:26:49,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:49,388 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:49,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-25 20:26:49,389 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:49,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:49,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1202773907, now seen corresponding path program 1 times [2021-11-25 20:26:49,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:49,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544068963] [2021-11-25 20:26:49,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:49,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:49,524 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:26:49,525 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:49,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544068963] [2021-11-25 20:26:49,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544068963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:49,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:49,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:26:49,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58909327] [2021-11-25 20:26:49,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:49,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:49,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:49,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:49,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:49,527 INFO L87 Difference]: Start difference. First operand 3697 states and 5327 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 20:26:50,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:50,691 INFO L93 Difference]: Finished difference Result 3697 states and 5327 transitions. [2021-11-25 20:26:50,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:50,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 128 [2021-11-25 20:26:50,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:50,709 INFO L225 Difference]: With dead ends: 3697 [2021-11-25 20:26:50,709 INFO L226 Difference]: Without dead ends: 3695 [2021-11-25 20:26:50,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:50,712 INFO L933 BasicCegarLoop]: 923 mSDtfsCounter, 1046 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:50,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1048 Valid, 1846 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 20:26:50,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3695 states. [2021-11-25 20:26:51,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3695 to 3695. [2021-11-25 20:26:51,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3695 states, 2229 states have (on average 1.2992373261552266) internal successors, (2896), 2300 states have internal predecessors, (2896), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1071 states have call predecessors, (1331), 1096 states have call successors, (1331) [2021-11-25 20:26:51,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3695 states to 3695 states and 5325 transitions. [2021-11-25 20:26:51,159 INFO L78 Accepts]: Start accepts. Automaton has 3695 states and 5325 transitions. Word has length 128 [2021-11-25 20:26:51,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:51,160 INFO L470 AbstractCegarLoop]: Abstraction has 3695 states and 5325 transitions. [2021-11-25 20:26:51,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 20:26:51,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3695 states and 5325 transitions. [2021-11-25 20:26:51,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-25 20:26:51,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:51,166 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:51,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-25 20:26:51,167 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:51,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:51,168 INFO L85 PathProgramCache]: Analyzing trace with hash -265399719, now seen corresponding path program 1 times [2021-11-25 20:26:51,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:51,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928036996] [2021-11-25 20:26:51,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:51,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:51,314 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:26:51,314 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:51,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928036996] [2021-11-25 20:26:51,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928036996] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:51,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:51,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:26:51,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925467223] [2021-11-25 20:26:51,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:51,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:26:51,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:51,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:26:51,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:26:51,317 INFO L87 Difference]: Start difference. First operand 3695 states and 5325 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 20:26:52,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:52,577 INFO L93 Difference]: Finished difference Result 3695 states and 5325 transitions. [2021-11-25 20:26:52,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:26:52,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 133 [2021-11-25 20:26:52,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:52,596 INFO L225 Difference]: With dead ends: 3695 [2021-11-25 20:26:52,596 INFO L226 Difference]: Without dead ends: 3693 [2021-11-25 20:26:52,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:26:52,600 INFO L933 BasicCegarLoop]: 921 mSDtfsCounter, 1043 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:52,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1045 Valid, 1842 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 20:26:52,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2021-11-25 20:26:53,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3693. [2021-11-25 20:26:53,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 2228 states have (on average 1.2989228007181328) internal successors, (2894), 2298 states have internal predecessors, (2894), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1071 states have call predecessors, (1331), 1096 states have call successors, (1331) [2021-11-25 20:26:53,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 5323 transitions. [2021-11-25 20:26:53,203 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 5323 transitions. Word has length 133 [2021-11-25 20:26:53,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:53,204 INFO L470 AbstractCegarLoop]: Abstraction has 3693 states and 5323 transitions. [2021-11-25 20:26:53,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 20:26:53,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 5323 transitions. [2021-11-25 20:26:53,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-25 20:26:53,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:53,211 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:53,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-25 20:26:53,211 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:26:53,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:53,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1364641953, now seen corresponding path program 1 times [2021-11-25 20:26:53,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:53,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267816911] [2021-11-25 20:26:53,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:53,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:53,806 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-11-25 20:26:53,807 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:53,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267816911] [2021-11-25 20:26:53,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267816911] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:53,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:53,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 20:26:53,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972415694] [2021-11-25 20:26:53,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:53,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 20:26:53,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:53,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 20:26:53,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:26:53,809 INFO L87 Difference]: Start difference. First operand 3693 states and 5323 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:27:05,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:05,896 INFO L93 Difference]: Finished difference Result 4009 states and 5788 transitions. [2021-11-25 20:27:05,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 20:27:05,898 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 166 [2021-11-25 20:27:05,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:05,919 INFO L225 Difference]: With dead ends: 4009 [2021-11-25 20:27:05,919 INFO L226 Difference]: Without dead ends: 4007 [2021-11-25 20:27:05,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-25 20:27:05,923 INFO L933 BasicCegarLoop]: 1390 mSDtfsCounter, 1070 mSDsluCounter, 6562 mSDsCounter, 0 mSdLazyCounter, 3925 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 6798 SdHoareTripleChecker+Invalid, 3933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:05,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1133 Valid, 6798 Invalid, 3933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 3925 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2021-11-25 20:27:05,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4007 states. [2021-11-25 20:27:06,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4007 to 3700. [2021-11-25 20:27:06,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3700 states, 2233 states have (on average 1.2987012987012987) internal successors, (2900), 2304 states have internal predecessors, (2900), 1098 states have call successors, (1098), 350 states have call predecessors, (1098), 357 states have return successors, (1333), 1071 states have call predecessors, (1333), 1096 states have call successors, (1333) [2021-11-25 20:27:06,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3700 states to 3700 states and 5331 transitions. [2021-11-25 20:27:06,372 INFO L78 Accepts]: Start accepts. Automaton has 3700 states and 5331 transitions. Word has length 166 [2021-11-25 20:27:06,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:06,373 INFO L470 AbstractCegarLoop]: Abstraction has 3700 states and 5331 transitions. [2021-11-25 20:27:06,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:27:06,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3700 states and 5331 transitions. [2021-11-25 20:27:06,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-25 20:27:06,380 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:06,380 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:06,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-25 20:27:06,381 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:27:06,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:06,381 INFO L85 PathProgramCache]: Analyzing trace with hash -136929954, now seen corresponding path program 1 times [2021-11-25 20:27:06,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:06,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393543673] [2021-11-25 20:27:06,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:06,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:06,515 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:27:06,515 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:06,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393543673] [2021-11-25 20:27:06,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393543673] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:06,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:06,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:27:06,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002017732] [2021-11-25 20:27:06,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:06,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:27:06,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:27:06,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:27:06,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:27:06,518 INFO L87 Difference]: Start difference. First operand 3700 states and 5331 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 20:27:07,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:07,715 INFO L93 Difference]: Finished difference Result 3700 states and 5331 transitions. [2021-11-25 20:27:07,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:27:07,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 138 [2021-11-25 20:27:07,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:07,737 INFO L225 Difference]: With dead ends: 3700 [2021-11-25 20:27:07,737 INFO L226 Difference]: Without dead ends: 3698 [2021-11-25 20:27:07,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:27:07,740 INFO L933 BasicCegarLoop]: 919 mSDtfsCounter, 1040 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:07,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1042 Valid, 1838 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 20:27:07,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2021-11-25 20:27:08,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3698. [2021-11-25 20:27:08,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3698 states, 2232 states have (on average 1.2983870967741935) internal successors, (2898), 2302 states have internal predecessors, (2898), 1098 states have call successors, (1098), 350 states have call predecessors, (1098), 357 states have return successors, (1333), 1071 states have call predecessors, (1333), 1096 states have call successors, (1333) [2021-11-25 20:27:08,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 5329 transitions. [2021-11-25 20:27:08,193 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 5329 transitions. Word has length 138 [2021-11-25 20:27:08,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:08,194 INFO L470 AbstractCegarLoop]: Abstraction has 3698 states and 5329 transitions. [2021-11-25 20:27:08,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 20:27:08,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 5329 transitions. [2021-11-25 20:27:08,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-25 20:27:08,201 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:08,201 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:08,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-25 20:27:08,202 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_dev_usb_put_devErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:27:08,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:08,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1455749694, now seen corresponding path program 1 times [2021-11-25 20:27:08,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:08,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705189887] [2021-11-25 20:27:08,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:08,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:08,946 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-11-25 20:27:08,946 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:08,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705189887] [2021-11-25 20:27:08,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705189887] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:08,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:08,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-25 20:27:08,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731192756] [2021-11-25 20:27:08,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:08,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 20:27:08,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:27:08,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 20:27:08,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:27:08,948 INFO L87 Difference]: Start difference. First operand 3698 states and 5329 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:27:25,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:25,324 INFO L93 Difference]: Finished difference Result 5201 states and 7521 transitions. [2021-11-25 20:27:25,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 20:27:25,327 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 168 [2021-11-25 20:27:25,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:25,353 INFO L225 Difference]: With dead ends: 5201 [2021-11-25 20:27:25,353 INFO L226 Difference]: Without dead ends: 5199 [2021-11-25 20:27:25,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-25 20:27:25,358 INFO L933 BasicCegarLoop]: 1451 mSDtfsCounter, 1128 mSDsluCounter, 6786 mSDsCounter, 0 mSdLazyCounter, 4118 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 7038 SdHoareTripleChecker+Invalid, 4128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:25,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1191 Valid, 7038 Invalid, 4128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 4118 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2021-11-25 20:27:25,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2021-11-25 20:27:25,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 4843. [2021-11-25 20:27:25,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4843 states, 2930 states have (on average 1.302730375426621) internal successors, (3817), 3017 states have internal predecessors, (3817), 1438 states have call successors, (1438), 455 states have call predecessors, (1438), 464 states have return successors, (1751), 1404 states have call predecessors, (1751), 1436 states have call successors, (1751) [2021-11-25 20:27:26,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 7006 transitions. [2021-11-25 20:27:26,024 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 7006 transitions. Word has length 168 [2021-11-25 20:27:26,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:26,025 INFO L470 AbstractCegarLoop]: Abstraction has 4843 states and 7006 transitions. [2021-11-25 20:27:26,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:27:26,026 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 7006 transitions. [2021-11-25 20:27:26,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-25 20:27:26,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:26,033 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:26,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-25 20:27:26,034 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:27:26,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:26,034 INFO L85 PathProgramCache]: Analyzing trace with hash 176522482, now seen corresponding path program 1 times [2021-11-25 20:27:26,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:26,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791533744] [2021-11-25 20:27:26,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:26,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:26,191 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:27:26,192 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:26,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791533744] [2021-11-25 20:27:26,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791533744] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:26,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:26,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:27:26,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532633896] [2021-11-25 20:27:26,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:26,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:27:26,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:27:26,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:27:26,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:27:26,195 INFO L87 Difference]: Start difference. First operand 4843 states and 7006 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 20:27:27,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:27,247 INFO L93 Difference]: Finished difference Result 4843 states and 7006 transitions. [2021-11-25 20:27:27,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:27:27,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 143 [2021-11-25 20:27:27,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:27,262 INFO L225 Difference]: With dead ends: 4843 [2021-11-25 20:27:27,262 INFO L226 Difference]: Without dead ends: 4841 [2021-11-25 20:27:27,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:27:27,265 INFO L933 BasicCegarLoop]: 917 mSDtfsCounter, 1037 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:27,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1039 Valid, 1834 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 20:27:27,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2021-11-25 20:27:27,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 4841. [2021-11-25 20:27:27,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4841 states, 2929 states have (on average 1.302492318197337) internal successors, (3815), 3015 states have internal predecessors, (3815), 1438 states have call successors, (1438), 455 states have call predecessors, (1438), 464 states have return successors, (1751), 1404 states have call predecessors, (1751), 1436 states have call successors, (1751) [2021-11-25 20:27:27,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4841 states to 4841 states and 7004 transitions. [2021-11-25 20:27:27,822 INFO L78 Accepts]: Start accepts. Automaton has 4841 states and 7004 transitions. Word has length 143 [2021-11-25 20:27:27,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:27,822 INFO L470 AbstractCegarLoop]: Abstraction has 4841 states and 7004 transitions. [2021-11-25 20:27:27,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 20:27:27,823 INFO L276 IsEmpty]: Start isEmpty. Operand 4841 states and 7004 transitions. [2021-11-25 20:27:27,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-25 20:27:27,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:27,829 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:27,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-25 20:27:27,830 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:27:27,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:27,830 INFO L85 PathProgramCache]: Analyzing trace with hash 462658569, now seen corresponding path program 1 times [2021-11-25 20:27:27,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:27,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857761446] [2021-11-25 20:27:27,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:27,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:27:27,970 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:27,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857761446] [2021-11-25 20:27:27,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857761446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:27,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:27,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:27:27,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364314219] [2021-11-25 20:27:27,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:27,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:27:27,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:27:27,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:27:27,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:27:27,973 INFO L87 Difference]: Start difference. First operand 4841 states and 7004 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-25 20:27:29,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:29,696 INFO L93 Difference]: Finished difference Result 8424 states and 12646 transitions. [2021-11-25 20:27:29,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:27:29,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 148 [2021-11-25 20:27:29,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:29,730 INFO L225 Difference]: With dead ends: 8424 [2021-11-25 20:27:29,730 INFO L226 Difference]: Without dead ends: 8292 [2021-11-25 20:27:29,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:27:29,738 INFO L933 BasicCegarLoop]: 1261 mSDtfsCounter, 955 mSDsluCounter, 2507 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 3437 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:29,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [955 Valid, 3437 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-25 20:27:29,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8292 states. [2021-11-25 20:27:30,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8292 to 8253. [2021-11-25 20:27:30,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8253 states, 5011 states have (on average 1.3059269606864896) internal successors, (6544), 5157 states have internal predecessors, (6544), 2417 states have call successors, (2417), 807 states have call predecessors, (2417), 815 states have return successors, (3480), 2346 states have call predecessors, (3480), 2413 states have call successors, (3480) [2021-11-25 20:27:30,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8253 states to 8253 states and 12441 transitions. [2021-11-25 20:27:30,653 INFO L78 Accepts]: Start accepts. Automaton has 8253 states and 12441 transitions. Word has length 148 [2021-11-25 20:27:30,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:30,654 INFO L470 AbstractCegarLoop]: Abstraction has 8253 states and 12441 transitions. [2021-11-25 20:27:30,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-25 20:27:30,654 INFO L276 IsEmpty]: Start isEmpty. Operand 8253 states and 12441 transitions. [2021-11-25 20:27:30,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-25 20:27:30,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:30,660 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:30,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-25 20:27:30,660 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:27:30,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:30,661 INFO L85 PathProgramCache]: Analyzing trace with hash -2145550843, now seen corresponding path program 1 times [2021-11-25 20:27:30,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:30,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365119111] [2021-11-25 20:27:30,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:30,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:30,864 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-25 20:27:30,865 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:30,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365119111] [2021-11-25 20:27:30,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365119111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:30,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:30,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:27:30,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326312099] [2021-11-25 20:27:30,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:30,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:27:30,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:27:30,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:27:30,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:27:30,868 INFO L87 Difference]: Start difference. First operand 8253 states and 12441 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 20:27:32,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:32,548 INFO L93 Difference]: Finished difference Result 8323 states and 12483 transitions. [2021-11-25 20:27:32,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:27:32,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 187 [2021-11-25 20:27:32,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:32,575 INFO L225 Difference]: With dead ends: 8323 [2021-11-25 20:27:32,575 INFO L226 Difference]: Without dead ends: 8321 [2021-11-25 20:27:32,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:27:32,581 INFO L933 BasicCegarLoop]: 914 mSDtfsCounter, 1002 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 2767 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:32,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 2767 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-25 20:27:32,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8321 states. [2021-11-25 20:27:33,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8321 to 8321. [2021-11-25 20:27:33,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8321 states, 5052 states have (on average 1.3006730007917657) internal successors, (6571), 5197 states have internal predecessors, (6571), 2417 states have call successors, (2417), 835 states have call predecessors, (2417), 843 states have return successors, (3480), 2346 states have call predecessors, (3480), 2413 states have call successors, (3480) [2021-11-25 20:27:33,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8321 states to 8321 states and 12468 transitions. [2021-11-25 20:27:33,861 INFO L78 Accepts]: Start accepts. Automaton has 8321 states and 12468 transitions. Word has length 187 [2021-11-25 20:27:33,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:33,861 INFO L470 AbstractCegarLoop]: Abstraction has 8321 states and 12468 transitions. [2021-11-25 20:27:33,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 20:27:33,862 INFO L276 IsEmpty]: Start isEmpty. Operand 8321 states and 12468 transitions. [2021-11-25 20:27:33,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-25 20:27:33,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:33,868 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:33,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-25 20:27:33,868 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:27:33,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:33,869 INFO L85 PathProgramCache]: Analyzing trace with hash -729424376, now seen corresponding path program 1 times [2021-11-25 20:27:33,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:33,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893301357] [2021-11-25 20:27:33,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:33,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:34,069 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2021-11-25 20:27:34,070 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:34,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893301357] [2021-11-25 20:27:34,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893301357] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:34,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:34,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:27:34,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366956383] [2021-11-25 20:27:34,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:34,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:27:34,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:27:34,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:27:34,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:27:34,073 INFO L87 Difference]: Start difference. First operand 8321 states and 12468 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-25 20:27:35,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:35,923 INFO L93 Difference]: Finished difference Result 8321 states and 12468 transitions. [2021-11-25 20:27:35,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:27:35,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 205 [2021-11-25 20:27:35,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:35,952 INFO L225 Difference]: With dead ends: 8321 [2021-11-25 20:27:35,952 INFO L226 Difference]: Without dead ends: 8319 [2021-11-25 20:27:35,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:27:35,959 INFO L933 BasicCegarLoop]: 913 mSDtfsCounter, 30 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:35,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 3626 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-25 20:27:35,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8319 states. [2021-11-25 20:27:36,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8319 to 8319. [2021-11-25 20:27:36,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8319 states, 5051 states have (on average 1.2979607998416156) internal successors, (6556), 5195 states have internal predecessors, (6556), 2417 states have call successors, (2417), 835 states have call predecessors, (2417), 843 states have return successors, (3480), 2346 states have call predecessors, (3480), 2413 states have call successors, (3480) [2021-11-25 20:27:36,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8319 states to 8319 states and 12453 transitions. [2021-11-25 20:27:36,815 INFO L78 Accepts]: Start accepts. Automaton has 8319 states and 12453 transitions. Word has length 205 [2021-11-25 20:27:36,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:36,816 INFO L470 AbstractCegarLoop]: Abstraction has 8319 states and 12453 transitions. [2021-11-25 20:27:36,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-25 20:27:36,816 INFO L276 IsEmpty]: Start isEmpty. Operand 8319 states and 12453 transitions. [2021-11-25 20:27:36,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-25 20:27:36,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:36,824 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:36,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-25 20:27:36,824 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:27:36,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:36,825 INFO L85 PathProgramCache]: Analyzing trace with hash 114309254, now seen corresponding path program 1 times [2021-11-25 20:27:36,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:36,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892207502] [2021-11-25 20:27:36,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:36,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:37,120 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-25 20:27:37,121 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:37,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892207502] [2021-11-25 20:27:37,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892207502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:37,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:37,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-25 20:27:37,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97091619] [2021-11-25 20:27:37,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:37,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 20:27:37,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:27:37,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 20:27:37,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:27:37,123 INFO L87 Difference]: Start difference. First operand 8319 states and 12453 transitions. Second operand has 9 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-25 20:27:40,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:40,295 INFO L93 Difference]: Finished difference Result 13491 states and 21395 transitions. [2021-11-25 20:27:40,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 20:27:40,296 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) Word has length 208 [2021-11-25 20:27:40,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:40,342 INFO L225 Difference]: With dead ends: 13491 [2021-11-25 20:27:40,342 INFO L226 Difference]: Without dead ends: 8469 [2021-11-25 20:27:40,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:27:40,384 INFO L933 BasicCegarLoop]: 916 mSDtfsCounter, 4 mSDsluCounter, 7486 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7316 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:40,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 7316 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-25 20:27:40,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8469 states. [2021-11-25 20:27:41,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8469 to 8455. [2021-11-25 20:27:41,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8455 states, 5134 states have (on average 1.2931437475652512) internal successors, (6639), 5286 states have internal predecessors, (6639), 2432 states have call successors, (2432), 835 states have call predecessors, (2432), 881 states have return successors, (3542), 2391 states have call predecessors, (3542), 2428 states have call successors, (3542) [2021-11-25 20:27:41,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8455 states to 8455 states and 12613 transitions. [2021-11-25 20:27:41,249 INFO L78 Accepts]: Start accepts. Automaton has 8455 states and 12613 transitions. Word has length 208 [2021-11-25 20:27:41,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:41,250 INFO L470 AbstractCegarLoop]: Abstraction has 8455 states and 12613 transitions. [2021-11-25 20:27:41,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-25 20:27:41,250 INFO L276 IsEmpty]: Start isEmpty. Operand 8455 states and 12613 transitions. [2021-11-25 20:27:41,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-11-25 20:27:41,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:41,261 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:41,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-25 20:27:41,262 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:27:41,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:41,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2055935616, now seen corresponding path program 1 times [2021-11-25 20:27:41,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:41,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557831813] [2021-11-25 20:27:41,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:41,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:41,615 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2021-11-25 20:27:41,615 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:41,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557831813] [2021-11-25 20:27:41,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557831813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:41,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:41,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-25 20:27:41,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820348435] [2021-11-25 20:27:41,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:41,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 20:27:41,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:27:41,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 20:27:41,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:27:41,618 INFO L87 Difference]: Start difference. First operand 8455 states and 12613 transitions. Second operand has 9 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-25 20:27:45,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:45,255 INFO L93 Difference]: Finished difference Result 12565 states and 19223 transitions. [2021-11-25 20:27:45,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 20:27:45,256 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) Word has length 247 [2021-11-25 20:27:45,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:45,305 INFO L225 Difference]: With dead ends: 12565 [2021-11-25 20:27:45,306 INFO L226 Difference]: Without dead ends: 9994 [2021-11-25 20:27:45,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:27:45,323 INFO L933 BasicCegarLoop]: 1266 mSDtfsCounter, 196 mSDsluCounter, 10035 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 9876 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:45,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 9876 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-25 20:27:45,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9994 states. [2021-11-25 20:27:46,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9994 to 8457. [2021-11-25 20:27:46,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8457 states, 5136 states have (on average 1.2930295950155763) internal successors, (6641), 5287 states have internal predecessors, (6641), 2432 states have call successors, (2432), 835 states have call predecessors, (2432), 881 states have return successors, (3542), 2392 states have call predecessors, (3542), 2428 states have call successors, (3542) [2021-11-25 20:27:46,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8457 states to 8457 states and 12615 transitions. [2021-11-25 20:27:46,301 INFO L78 Accepts]: Start accepts. Automaton has 8457 states and 12615 transitions. Word has length 247 [2021-11-25 20:27:46,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:46,302 INFO L470 AbstractCegarLoop]: Abstraction has 8457 states and 12615 transitions. [2021-11-25 20:27:46,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-25 20:27:46,303 INFO L276 IsEmpty]: Start isEmpty. Operand 8457 states and 12615 transitions. [2021-11-25 20:27:46,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-11-25 20:27:46,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:46,312 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:46,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-25 20:27:46,312 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:27:46,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:46,313 INFO L85 PathProgramCache]: Analyzing trace with hash 46089099, now seen corresponding path program 1 times [2021-11-25 20:27:46,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:46,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581827860] [2021-11-25 20:27:46,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:46,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:47,108 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2021-11-25 20:27:47,109 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:47,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581827860] [2021-11-25 20:27:47,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581827860] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:27:47,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660934991] [2021-11-25 20:27:47,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:47,109 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:27:47,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:27:47,111 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:27:47,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:27:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:48,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 3055 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-25 20:27:48,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:27:48,662 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-11-25 20:27:48,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:27:48,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660934991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:48,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:27:48,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 16 [2021-11-25 20:27:48,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817938837] [2021-11-25 20:27:48,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:48,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-25 20:27:48,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:27:48,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-25 20:27:48,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-11-25 20:27:48,664 INFO L87 Difference]: Start difference. First operand 8457 states and 12615 transitions. Second operand has 11 states, 8 states have (on average 11.5) internal successors, (92), 10 states have internal predecessors, (92), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) [2021-11-25 20:27:53,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:53,431 INFO L93 Difference]: Finished difference Result 13094 states and 19748 transitions. [2021-11-25 20:27:53,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 20:27:53,431 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 11.5) internal successors, (92), 10 states have internal predecessors, (92), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) Word has length 247 [2021-11-25 20:27:53,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:53,460 INFO L225 Difference]: With dead ends: 13094 [2021-11-25 20:27:53,460 INFO L226 Difference]: Without dead ends: 8460 [2021-11-25 20:27:53,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2021-11-25 20:27:53,478 INFO L933 BasicCegarLoop]: 1199 mSDtfsCounter, 675 mSDsluCounter, 11532 mSDsCounter, 0 mSdLazyCounter, 2163 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 11103 SdHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:53,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 11103 Invalid, 2567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 2163 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-25 20:27:53,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8460 states. [2021-11-25 20:27:54,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8460 to 7694. [2021-11-25 20:27:54,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 4679 states have (on average 1.2910878392818979) internal successors, (6041), 4811 states have internal predecessors, (6041), 2213 states have call successors, (2213), 750 states have call predecessors, (2213), 794 states have return successors, (3199), 2183 states have call predecessors, (3199), 2209 states have call successors, (3199) [2021-11-25 20:27:54,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 11453 transitions. [2021-11-25 20:27:54,230 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 11453 transitions. Word has length 247 [2021-11-25 20:27:54,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:54,230 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 11453 transitions. [2021-11-25 20:27:54,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 11.5) internal successors, (92), 10 states have internal predecessors, (92), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) [2021-11-25 20:27:54,230 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 11453 transitions. [2021-11-25 20:27:54,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-25 20:27:54,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:54,237 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:54,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:27:54,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:27:54,438 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:27:54,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:54,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1815655414, now seen corresponding path program 1 times [2021-11-25 20:27:54,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:54,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318595019] [2021-11-25 20:27:54,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:54,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:54,520 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:27:54,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [921171689] [2021-11-25 20:27:54,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:54,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:27:54,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:27:54,522 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:27:54,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:27:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:55,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 2716 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-25 20:27:55,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:27:55,941 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-11-25 20:27:55,941 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:27:55,941 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:55,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318595019] [2021-11-25 20:27:55,941 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:27:55,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921171689] [2021-11-25 20:27:55,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921171689] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:55,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:55,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 20:27:55,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015693131] [2021-11-25 20:27:55,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:55,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:27:55,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:27:55,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:27:55,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:27:55,943 INFO L87 Difference]: Start difference. First operand 7694 states and 11453 transitions. Second operand has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 4 states have call successors, (50), 5 states have call predecessors, (50), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-25 20:27:58,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:58,660 INFO L93 Difference]: Finished difference Result 14811 states and 23516 transitions. [2021-11-25 20:27:58,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 20:27:58,661 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 4 states have call successors, (50), 5 states have call predecessors, (50), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 231 [2021-11-25 20:27:58,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:58,691 INFO L225 Difference]: With dead ends: 14811 [2021-11-25 20:27:58,691 INFO L226 Difference]: Without dead ends: 8042 [2021-11-25 20:27:58,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:27:58,726 INFO L933 BasicCegarLoop]: 903 mSDtfsCounter, 20 mSDsluCounter, 5281 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 5394 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:58,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 5394 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-25 20:27:58,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8042 states. [2021-11-25 20:27:59,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8042 to 8006. [2021-11-25 20:27:59,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8006 states, 4895 states have (on average 1.2831460674157302) internal successors, (6281), 5027 states have internal predecessors, (6281), 2273 states have call successors, (2273), 786 states have call predecessors, (2273), 830 states have return successors, (3315), 2255 states have call predecessors, (3315), 2269 states have call successors, (3315) [2021-11-25 20:27:59,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8006 states to 8006 states and 11869 transitions. [2021-11-25 20:27:59,635 INFO L78 Accepts]: Start accepts. Automaton has 8006 states and 11869 transitions. Word has length 231 [2021-11-25 20:27:59,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:59,636 INFO L470 AbstractCegarLoop]: Abstraction has 8006 states and 11869 transitions. [2021-11-25 20:27:59,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 4 states have call successors, (50), 5 states have call predecessors, (50), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-25 20:27:59,636 INFO L276 IsEmpty]: Start isEmpty. Operand 8006 states and 11869 transitions. [2021-11-25 20:27:59,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-25 20:27:59,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:59,644 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:59,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 20:27:59,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-11-25 20:27:59,845 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:27:59,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:59,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1479252438, now seen corresponding path program 1 times [2021-11-25 20:27:59,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:59,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686944536] [2021-11-25 20:27:59,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:59,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:59,955 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:27:59,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1396867775] [2021-11-25 20:27:59,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:59,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:27:59,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:27:59,957 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:27:59,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864c16fd-15b9-4ccc-9865-41ddb7175413/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:28:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:28:00,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 2687 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-25 20:28:00,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:28:01,470 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-11-25 20:28:01,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:28:02,093 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 6 proven. 22 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-11-25 20:28:02,093 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:28:02,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686944536] [2021-11-25 20:28:02,093 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:28:02,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396867775] [2021-11-25 20:28:02,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396867775] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:28:02,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [603713602] [2021-11-25 20:28:02,131 INFO L159 IcfgInterpreter]: Started Sifa with 171 locations of interest [2021-11-25 20:28:02,131 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:28:02,138 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:28:02,143 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:28:02,144 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:28:03,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:28:03,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:28:03,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:28:03,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:28:03,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:28:03,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:28:03,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:28:03,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:28:04,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:28:04,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:28:04,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:28:04,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:28:04,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31