/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:56:16,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:56:16,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:56:16,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:56:16,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:56:16,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:56:16,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:56:16,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:56:16,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:56:16,817 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:56:16,818 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:56:16,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:56:16,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:56:16,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:56:16,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:56:16,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:56:16,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:56:16,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:56:16,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:56:16,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:56:16,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:56:16,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:56:16,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:56:16,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:56:16,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:56:16,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:56:16,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:56:16,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:56:16,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:56:16,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:56:16,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:56:16,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:56:16,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:56:16,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:56:16,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:56:16,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:56:16,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:56:16,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:56:16,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:56:16,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:56:16,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:56:16,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 13:56:16,941 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:56:16,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:56:16,942 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:56:16,942 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:56:16,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:56:16,944 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:56:16,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:56:16,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:56:16,947 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:56:16,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:56:16,948 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:56:16,949 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:56:16,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:56:16,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:56:16,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:56:16,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:56:16,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:56:16,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:56:16,950 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:56:16,950 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:56:16,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:56:16,951 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:56:16,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:56:16,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:56:16,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:56:16,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:56:16,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:56:16,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:56:16,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:56:16,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:56:16,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:56:16,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:56:16,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:56:16,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:56:17,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:56:17,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:56:17,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:56:17,413 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:56:17,414 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:56:17,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c [2022-10-16 13:56:17,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b65d5a268/38f04c66ece34224a44500fcf08f11ec/FLAG1eded010f [2022-10-16 13:56:18,705 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:56:18,706 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c [2022-10-16 13:56:18,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b65d5a268/38f04c66ece34224a44500fcf08f11ec/FLAG1eded010f [2022-10-16 13:56:19,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b65d5a268/38f04c66ece34224a44500fcf08f11ec [2022-10-16 13:56:19,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:56:19,015 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:56:19,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:56:19,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:56:19,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:56:19,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:56:19" (1/1) ... [2022-10-16 13:56:19,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fdcaa77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:56:19, skipping insertion in model container [2022-10-16 13:56:19,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:56:19" (1/1) ... [2022-10-16 13:56:19,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:56:19,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:56:24,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[389323,389336] [2022-10-16 13:56:24,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[389897,389910] [2022-10-16 13:56:24,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[391096,391109] [2022-10-16 13:56:24,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[391804,391817] [2022-10-16 13:56:24,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[392245,392258] [2022-10-16 13:56:24,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[392477,392490] [2022-10-16 13:56:24,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[393055,393068] [2022-10-16 13:56:24,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[393645,393658] [2022-10-16 13:56:24,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[394062,394075] [2022-10-16 13:56:24,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[394459,394472] [2022-10-16 13:56:24,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[394694,394707] [2022-10-16 13:56:24,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[395442,395455] [2022-10-16 13:56:24,251 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[395863,395876] [2022-10-16 13:56:24,260 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[396490,396503] [2022-10-16 13:56:24,267 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[396905,396918] [2022-10-16 13:56:24,276 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[397549,397562] [2022-10-16 13:56:24,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[398279,398292] [2022-10-16 13:56:24,294 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[399115,399128] [2022-10-16 13:56:24,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[400461,400474] [2022-10-16 13:56:24,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[400859,400872] [2022-10-16 13:56:24,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[401416,401429] [2022-10-16 13:56:24,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[401799,401812] [2022-10-16 13:56:24,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[402415,402428] [2022-10-16 13:56:24,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[402989,403002] [2022-10-16 13:56:24,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[403902,403915] [2022-10-16 13:56:24,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[404293,404306] [2022-10-16 13:56:24,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[404522,404535] [2022-10-16 13:56:24,371 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[404928,404941] [2022-10-16 13:56:24,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[405785,405798] [2022-10-16 13:56:24,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[406192,406205] [2022-10-16 13:56:24,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:56:24,492 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:56:24,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[389323,389336] [2022-10-16 13:56:24,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[389897,389910] [2022-10-16 13:56:24,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[391096,391109] [2022-10-16 13:56:24,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[391804,391817] [2022-10-16 13:56:24,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[392245,392258] [2022-10-16 13:56:24,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[392477,392490] [2022-10-16 13:56:24,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[393055,393068] [2022-10-16 13:56:24,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[393645,393658] [2022-10-16 13:56:24,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[394062,394075] [2022-10-16 13:56:24,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[394459,394472] [2022-10-16 13:56:24,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[394694,394707] [2022-10-16 13:56:24,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[395442,395455] [2022-10-16 13:56:24,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[395863,395876] [2022-10-16 13:56:24,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[396490,396503] [2022-10-16 13:56:24,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[396905,396918] [2022-10-16 13:56:24,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[397549,397562] [2022-10-16 13:56:24,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[398279,398292] [2022-10-16 13:56:24,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[399115,399128] [2022-10-16 13:56:24,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[400461,400474] [2022-10-16 13:56:24,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[400859,400872] [2022-10-16 13:56:24,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[401416,401429] [2022-10-16 13:56:24,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[401799,401812] [2022-10-16 13:56:24,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[402415,402428] [2022-10-16 13:56:24,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[402989,403002] [2022-10-16 13:56:25,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[403902,403915] [2022-10-16 13:56:25,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[404293,404306] [2022-10-16 13:56:25,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[404522,404535] [2022-10-16 13:56:25,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[404928,404941] [2022-10-16 13:56:25,005 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[405785,405798] [2022-10-16 13:56:25,006 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c[406192,406205] [2022-10-16 13:56:25,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:56:25,441 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:56:25,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:56:25 WrapperNode [2022-10-16 13:56:25,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:56:25,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:56:25,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:56:25,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:56:25,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:56:25" (1/1) ... [2022-10-16 13:56:25,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:56:25" (1/1) ... [2022-10-16 13:56:25,872 INFO L138 Inliner]: procedures = 640, calls = 2886, calls flagged for inlining = 251, calls inlined = 158, statements flattened = 4434 [2022-10-16 13:56:25,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:56:25,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:56:25,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:56:25,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:56:25,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:56:25" (1/1) ... [2022-10-16 13:56:25,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:56:25" (1/1) ... [2022-10-16 13:56:25,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:56:25" (1/1) ... [2022-10-16 13:56:25,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:56:25" (1/1) ... [2022-10-16 13:56:26,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:56:25" (1/1) ... [2022-10-16 13:56:26,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:56:25" (1/1) ... [2022-10-16 13:56:26,269 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:56:25" (1/1) ... [2022-10-16 13:56:26,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:56:25" (1/1) ... [2022-10-16 13:56:26,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:56:26,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:56:26,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:56:26,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:56:26,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:56:25" (1/1) ... [2022-10-16 13:56:26,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:56:26,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:56:26,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 13:56:26,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 13:56:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-10-16 13:56:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-10-16 13:56:26,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-10-16 13:56:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-10-16 13:56:26,445 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-10-16 13:56:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_net_sock [2022-10-16 13:56:26,445 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_net_sock [2022-10-16 13:56:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:56:26,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:56:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_kaweth_device [2022-10-16 13:56:26,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_kaweth_device [2022-10-16 13:56:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-10-16 13:56:26,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-10-16 13:56:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-10-16 13:56:26,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2022-10-16 13:56:26,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2022-10-16 13:56:26,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-10-16 13:56:26,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-16 13:56:26,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-16 13:56:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_arch_io [2022-10-16 13:56:26,451 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_arch_io [2022-10-16 13:56:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_open [2022-10-16 13:56:26,451 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_open [2022-10-16 13:56:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-10-16 13:56:26,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-10-16 13:56:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-10-16 13:56:26,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-10-16 13:56:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-10-16 13:56:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-16 13:56:26,453 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2022-10-16 13:56:26,453 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-10-16 13:56:26,453 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resume [2022-10-16 13:56:26,453 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resume [2022-10-16 13:56:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-16 13:56:26,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-10-16 13:56:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-10-16 13:56:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-16 13:56:26,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-16 13:56:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-10-16 13:56:26,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-10-16 13:56:26,457 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_alloc_irq [2022-10-16 13:56:26,457 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_alloc_irq [2022-10-16 13:56:26,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:56:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_rcu_update_lock [2022-10-16 13:56:26,458 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_rcu_update_lock [2022-10-16 13:56:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-10-16 13:56:26,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-10-16 13:56:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-10-16 13:56:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2022-10-16 13:56:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-16 13:56:26,459 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-16 13:56:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 13:56:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resubmit_rx_urb [2022-10-16 13:56:26,460 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resubmit_rx_urb [2022-10-16 13:56:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-16 13:56:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 13:56:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-10-16 13:56:26,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-10-16 13:56:26,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-10-16 13:56:26,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-10-16 13:56:26,461 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-10-16 13:56:26,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:56:26,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-10-16 13:56:26,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-10-16 13:56:26,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-10-16 13:56:26,465 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_block_queue [2022-10-16 13:56:26,469 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_block_queue [2022-10-16 13:56:26,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 13:56:26,475 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 13:56:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-10-16 13:56:26,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-10-16 13:56:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-16 13:56:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-16 13:56:26,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-16 13:56:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-10-16 13:56:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_close [2022-10-16 13:56:26,477 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_close [2022-10-16 13:56:26,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-10-16 13:56:26,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-10-16 13:56:26,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_129 [2022-10-16 13:56:26,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_129 [2022-10-16 13:56:26,477 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_download_firmware [2022-10-16 13:56:26,478 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_download_firmware [2022-10-16 13:56:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_locking_spinlock [2022-10-16 13:56:26,478 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_locking_spinlock [2022-10-16 13:56:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-10-16 13:56:26,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-10-16 13:56:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_block_genhd [2022-10-16 13:56:26,478 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_block_genhd [2022-10-16 13:56:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:56:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_rcu_update_lock_sched [2022-10-16 13:56:26,479 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_rcu_update_lock_sched [2022-10-16 13:56:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:56:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-16 13:56:26,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-16 13:56:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-16 13:56:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:56:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-16 13:56:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2022-10-16 13:56:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-16 13:56:26,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-16 13:56:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-10-16 13:56:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-10-16 13:56:26,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-10-16 13:56:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-10-16 13:56:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-16 13:56:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-10-16 13:56:26,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-10-16 13:56:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-10-16 13:56:26,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-10-16 13:56:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-10-16 13:56:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-10-16 13:56:26,482 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-10-16 13:56:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-16 13:56:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-10-16 13:56:26,483 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_tx_timeout [2022-10-16 13:56:26,483 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_tx_timeout [2022-10-16 13:56:26,483 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-10-16 13:56:26,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:56:26,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:56:26,483 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-10-16 13:56:26,484 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-10-16 13:56:26,484 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_rcu_update_lock_bh [2022-10-16 13:56:26,484 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_rcu_update_lock_bh [2022-10-16 13:56:26,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 13:56:26,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 13:56:26,485 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-10-16 13:56:26,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-16 13:56:26,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-16 13:56:26,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2022-10-16 13:56:26,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2022-10-16 13:56:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-10-16 13:56:26,486 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-10-16 13:56:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-10-16 13:56:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_async_set_rx_mode [2022-10-16 13:56:26,486 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_async_set_rx_mode [2022-10-16 13:56:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_configuration [2022-10-16 13:56:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_kaweth_device [2022-10-16 13:56:26,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_kaweth_device [2022-10-16 13:56:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:56:26,487 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:56:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-16 13:56:26,487 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-16 13:56:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_alloc_usb_lock [2022-10-16 13:56:26,487 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_alloc_usb_lock [2022-10-16 13:56:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-10-16 13:56:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-10-16 13:56:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2022-10-16 13:56:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2022-10-16 13:56:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_fs_sysfs [2022-10-16 13:56:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_fs_sysfs [2022-10-16 13:56:26,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-10-16 13:56:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-10-16 13:56:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-10-16 13:56:26,489 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-10-16 13:56:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:56:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-16 13:56:26,489 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-16 13:56:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-10-16 13:56:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-10-16 13:56:26,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-10-16 13:56:26,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:56:26,490 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_usb_coherent [2022-10-16 13:56:26,490 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_usb_coherent [2022-10-16 13:56:26,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2022-10-16 13:56:26,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2022-10-16 13:56:26,490 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_locking_rwlock [2022-10-16 13:56:26,491 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_locking_rwlock [2022-10-16 13:56:26,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:56:26,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-10-16 13:56:26,491 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_drivers_base_class [2022-10-16 13:56:26,491 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_drivers_base_class [2022-10-16 13:56:26,491 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_module [2022-10-16 13:56:26,491 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_module [2022-10-16 13:56:26,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-10-16 13:56:26,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-10-16 13:56:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-16 13:56:26,492 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-16 13:56:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-16 13:56:26,492 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-16 13:56:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-10-16 13:56:26,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-10-16 13:56:26,492 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-10-16 13:56:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-10-16 13:56:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-10-16 13:56:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-10-16 13:56:26,493 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-10-16 13:56:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-10-16 13:56:26,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-10-16 13:56:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2022-10-16 13:56:26,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2022-10-16 13:56:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-10-16 13:56:26,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-10-16 13:56:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2022-10-16 13:56:26,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-10-16 13:56:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-10-16 13:56:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-16 13:56:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_set_rx_mode [2022-10-16 13:56:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_set_rx_mode [2022-10-16 13:56:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-10-16 13:56:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_fs_char_dev [2022-10-16 13:56:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_fs_char_dev [2022-10-16 13:56:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-16 13:56:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-16 13:56:26,504 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_usb_gadget [2022-10-16 13:56:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_usb_gadget [2022-10-16 13:56:26,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-10-16 13:56:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-10-16 13:56:26,504 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 13:56:26,504 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_net_rtnetlink [2022-10-16 13:56:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_net_rtnetlink [2022-10-16 13:56:26,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:56:26,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-10-16 13:56:26,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-10-16 13:56:26,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 13:56:26,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 13:56:26,505 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_block_request [2022-10-16 13:56:26,505 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_block_request [2022-10-16 13:56:26,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-10-16 13:56:26,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-10-16 13:56:26,505 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2022-10-16 13:56:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resubmit_int_urb [2022-10-16 13:56:26,506 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resubmit_int_urb [2022-10-16 13:56:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_lib_idr [2022-10-16 13:56:26,506 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_lib_idr [2022-10-16 13:56:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_usb_urb [2022-10-16 13:56:26,506 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_usb_urb [2022-10-16 13:56:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_control [2022-10-16 13:56:26,506 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_control [2022-10-16 13:56:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-16 13:56:26,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-16 13:56:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-10-16 13:56:26,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-10-16 13:56:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-10-16 13:56:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_mmc_sdio_func [2022-10-16 13:56:26,507 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_mmc_sdio_func [2022-10-16 13:56:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2022-10-16 13:56:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-10-16 13:56:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_kill_urbs [2022-10-16 13:56:26,508 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_kill_urbs [2022-10-16 13:56:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_disconnect [2022-10-16 13:56:26,508 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_disconnect [2022-10-16 13:56:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:56:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-10-16 13:56:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_rcu_srcu [2022-10-16 13:56:26,508 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_rcu_srcu [2022-10-16 13:56:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-10-16 13:56:26,509 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-10-16 13:56:27,456 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:56:27,459 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:56:35,691 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:56:35,709 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:56:35,709 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 13:56:35,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:56:35 BoogieIcfgContainer [2022-10-16 13:56:35,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:56:35,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:56:35,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:56:35,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:56:35,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:56:19" (1/3) ... [2022-10-16 13:56:35,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d1f2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:56:35, skipping insertion in model container [2022-10-16 13:56:35,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:56:25" (2/3) ... [2022-10-16 13:56:35,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d1f2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:56:35, skipping insertion in model container [2022-10-16 13:56:35,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:56:35" (3/3) ... [2022-10-16 13:56:35,724 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.c [2022-10-16 13:56:35,747 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:56:35,747 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 13:56:35,889 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:56:35,897 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@40bdb3e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:56:35,898 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 13:56:35,908 INFO L276 IsEmpty]: Start isEmpty. Operand has 1180 states, 762 states have (on average 1.2335958005249343) internal successors, (940), 816 states have internal predecessors, (940), 306 states have call successors, (306), 95 states have call predecessors, (306), 95 states have return successors, (306), 304 states have call predecessors, (306), 306 states have call successors, (306) [2022-10-16 13:56:35,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-10-16 13:56:35,944 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:56:35,945 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 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] [2022-10-16 13:56:35,946 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 13:56:35,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:56:35,954 INFO L85 PathProgramCache]: Analyzing trace with hash 64362313, now seen corresponding path program 1 times [2022-10-16 13:56:35,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:56:35,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577109587] [2022-10-16 13:56:35,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:56:35,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:56:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:56:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 13:56:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:56:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:56:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:56:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:56:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 13:56:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:56:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 13:56:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 13:56:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:56:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 13:56:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 13:56:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 13:56:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 13:56:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 13:56:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-10-16 13:56:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-10-16 13:56:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-10-16 13:56:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-10-16 13:56:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:37,686 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2022-10-16 13:56:37,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:56:37,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577109587] [2022-10-16 13:56:37,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577109587] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:56:37,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:56:37,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:56:37,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602516801] [2022-10-16 13:56:37,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:56:37,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:56:37,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:56:37,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:56:37,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:56:37,755 INFO L87 Difference]: Start difference. First operand has 1180 states, 762 states have (on average 1.2335958005249343) internal successors, (940), 816 states have internal predecessors, (940), 306 states have call successors, (306), 95 states have call predecessors, (306), 95 states have return successors, (306), 304 states have call predecessors, (306), 306 states have call successors, (306) Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 2 states have internal predecessors, (75), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 13:56:41,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:56:43,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:56:43,501 INFO L93 Difference]: Finished difference Result 2328 states and 3265 transitions. [2022-10-16 13:56:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:56:43,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 2 states have internal predecessors, (75), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 219 [2022-10-16 13:56:43,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:56:43,544 INFO L225 Difference]: With dead ends: 2328 [2022-10-16 13:56:43,544 INFO L226 Difference]: Without dead ends: 890 [2022-10-16 13:56:43,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:56:43,570 INFO L413 NwaCegarLoop]: 1371 mSDtfsCounter, 1293 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 1156 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 2528 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1156 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:56:43,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 2528 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1156 Valid, 973 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-10-16 13:56:43,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2022-10-16 13:56:43,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 869. [2022-10-16 13:56:43,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 580 states have (on average 1.236206896551724) internal successors, (717), 604 states have internal predecessors, (717), 222 states have call successors, (222), 52 states have call predecessors, (222), 51 states have return successors, (220), 219 states have call predecessors, (220), 220 states have call successors, (220) [2022-10-16 13:56:43,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1159 transitions. [2022-10-16 13:56:43,776 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1159 transitions. Word has length 219 [2022-10-16 13:56:43,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:56:43,777 INFO L495 AbstractCegarLoop]: Abstraction has 869 states and 1159 transitions. [2022-10-16 13:56:43,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 2 states have internal predecessors, (75), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 13:56:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1159 transitions. [2022-10-16 13:56:43,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-10-16 13:56:43,793 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:56:43,794 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 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] [2022-10-16 13:56:43,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:56:43,795 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 13:56:43,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:56:43,796 INFO L85 PathProgramCache]: Analyzing trace with hash 311232329, now seen corresponding path program 1 times [2022-10-16 13:56:43,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:56:43,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217377179] [2022-10-16 13:56:43,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:56:43,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:56:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:56:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 13:56:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:56:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:56:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:56:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:56:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 13:56:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:46,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:56:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 13:56:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 13:56:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:56:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 13:56:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 13:56:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 13:56:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 13:56:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 13:56:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-10-16 13:56:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-10-16 13:56:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-10-16 13:56:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-10-16 13:56:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:47,215 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2022-10-16 13:56:47,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:56:47,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217377179] [2022-10-16 13:56:47,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217377179] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:56:47,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:56:47,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 13:56:47,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176144147] [2022-10-16 13:56:47,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:56:47,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:56:47,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:56:47,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:56:47,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:56:47,225 INFO L87 Difference]: Start difference. First operand 869 states and 1159 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 13:56:55,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:56:55,805 INFO L93 Difference]: Finished difference Result 1769 states and 2364 transitions. [2022-10-16 13:56:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:56:55,806 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (24), 5 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 219 [2022-10-16 13:56:55,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:56:55,817 INFO L225 Difference]: With dead ends: 1769 [2022-10-16 13:56:55,817 INFO L226 Difference]: Without dead ends: 954 [2022-10-16 13:56:55,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:56:55,823 INFO L413 NwaCegarLoop]: 1078 mSDtfsCounter, 1117 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 2934 mSolverCounterSat, 1010 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 3473 SdHoareTripleChecker+Invalid, 3944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1010 IncrementalHoareTripleChecker+Valid, 2934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:56:55,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 3473 Invalid, 3944 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1010 Valid, 2934 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-10-16 13:56:55,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-10-16 13:56:55,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 872. [2022-10-16 13:56:55,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 583 states have (on average 1.234991423670669) internal successors, (720), 607 states have internal predecessors, (720), 222 states have call successors, (222), 52 states have call predecessors, (222), 51 states have return successors, (220), 219 states have call predecessors, (220), 220 states have call successors, (220) [2022-10-16 13:56:55,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1162 transitions. [2022-10-16 13:56:55,894 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1162 transitions. Word has length 219 [2022-10-16 13:56:55,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:56:55,896 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1162 transitions. [2022-10-16 13:56:55,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 13:56:55,896 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1162 transitions. [2022-10-16 13:56:55,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-10-16 13:56:55,900 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:56:55,901 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-10-16 13:56:55,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:56:55,901 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 13:56:55,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:56:55,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1496786505, now seen corresponding path program 1 times [2022-10-16 13:56:55,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:56:55,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019684606] [2022-10-16 13:56:55,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:56:55,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:56:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:56:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 13:56:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:56:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:56:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:56:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:56:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 13:56:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:56:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 13:56:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 13:56:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:56:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 13:56:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 13:56:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 13:56:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 13:56:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 13:56:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:56:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:56:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:56:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-16 13:56:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-16 13:56:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-10-16 13:56:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-16 13:56:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-10-16 13:56:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:56:57,702 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-10-16 13:56:57,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:56:57,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019684606] [2022-10-16 13:56:57,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019684606] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:56:57,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:56:57,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:56:57,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563906557] [2022-10-16 13:56:57,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:56:57,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:56:57,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:56:57,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:56:57,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:56:57,706 INFO L87 Difference]: Start difference. First operand 872 states and 1162 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-10-16 13:57:04,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:57:04,268 INFO L93 Difference]: Finished difference Result 1698 states and 2258 transitions. [2022-10-16 13:57:04,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:57:04,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (25), 5 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 240 [2022-10-16 13:57:04,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:57:04,279 INFO L225 Difference]: With dead ends: 1698 [2022-10-16 13:57:04,279 INFO L226 Difference]: Without dead ends: 897 [2022-10-16 13:57:04,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:57:04,286 INFO L413 NwaCegarLoop]: 1062 mSDtfsCounter, 960 mSDsluCounter, 1937 mSDsCounter, 0 mSdLazyCounter, 2180 mSolverCounterSat, 892 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 2999 SdHoareTripleChecker+Invalid, 3072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 892 IncrementalHoareTripleChecker+Valid, 2180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:57:04,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 2999 Invalid, 3072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [892 Valid, 2180 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-10-16 13:57:04,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-10-16 13:57:04,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 874. [2022-10-16 13:57:04,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 585 states have (on average 1.2341880341880342) internal successors, (722), 609 states have internal predecessors, (722), 222 states have call successors, (222), 52 states have call predecessors, (222), 51 states have return successors, (220), 219 states have call predecessors, (220), 220 states have call successors, (220) [2022-10-16 13:57:04,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1164 transitions. [2022-10-16 13:57:04,411 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1164 transitions. Word has length 240 [2022-10-16 13:57:04,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:57:04,414 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1164 transitions. [2022-10-16 13:57:04,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-10-16 13:57:04,415 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1164 transitions. [2022-10-16 13:57:04,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-10-16 13:57:04,422 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:57:04,422 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:57:04,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:57:04,423 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 13:57:04,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:57:04,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1418018122, now seen corresponding path program 1 times [2022-10-16 13:57:04,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:57:04,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826739761] [2022-10-16 13:57:04,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:57:04,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:57:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:05,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:57:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:05,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 13:57:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:05,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:57:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:05,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:57:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:57:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:57:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 13:57:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:57:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 13:57:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 13:57:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:57:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 13:57:06,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 13:57:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 13:57:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 13:57:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 13:57:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-16 13:57:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-16 13:57:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-10-16 13:57:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-10-16 13:57:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-10-16 13:57:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:06,417 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-10-16 13:57:06,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:57:06,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826739761] [2022-10-16 13:57:06,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826739761] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:57:06,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608525526] [2022-10-16 13:57:06,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:57:06,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:57:06,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:57:06,420 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:57:06,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 13:57:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:08,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 5807 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 13:57:08,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:57:08,192 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2022-10-16 13:57:08,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:57:08,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608525526] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:57:08,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:57:08,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-10-16 13:57:08,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985710309] [2022-10-16 13:57:08,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:57:08,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:57:08,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:57:08,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:57:08,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-10-16 13:57:08,198 INFO L87 Difference]: Start difference. First operand 874 states and 1164 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-10-16 13:57:08,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:57:08,452 INFO L93 Difference]: Finished difference Result 1740 states and 2317 transitions. [2022-10-16 13:57:08,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:57:08,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 243 [2022-10-16 13:57:08,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:57:08,461 INFO L225 Difference]: With dead ends: 1740 [2022-10-16 13:57:08,461 INFO L226 Difference]: Without dead ends: 872 [2022-10-16 13:57:08,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:57:08,469 INFO L413 NwaCegarLoop]: 1136 mSDtfsCounter, 5 mSDsluCounter, 4488 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5624 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:57:08,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5624 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:57:08,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2022-10-16 13:57:08,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 872. [2022-10-16 13:57:08,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 585 states have (on average 1.2290598290598291) internal successors, (719), 607 states have internal predecessors, (719), 220 states have call successors, (220), 52 states have call predecessors, (220), 51 states have return successors, (218), 217 states have call predecessors, (218), 218 states have call successors, (218) [2022-10-16 13:57:08,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1157 transitions. [2022-10-16 13:57:08,535 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1157 transitions. Word has length 243 [2022-10-16 13:57:08,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:57:08,535 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1157 transitions. [2022-10-16 13:57:08,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-10-16 13:57:08,536 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1157 transitions. [2022-10-16 13:57:08,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-10-16 13:57:08,540 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:57:08,541 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:57:08,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 13:57:08,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:57:08,754 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 13:57:08,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:57:08,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1688156600, now seen corresponding path program 1 times [2022-10-16 13:57:08,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:57:08,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086959565] [2022-10-16 13:57:08,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:57:08,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:57:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:57:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 13:57:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:57:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:57:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:57:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:57:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 13:57:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:57:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 13:57:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 13:57:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:57:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 13:57:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 13:57:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 13:57:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 13:57:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 13:57:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-16 13:57:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-16 13:57:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-10-16 13:57:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-10-16 13:57:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-10-16 13:57:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:10,597 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-10-16 13:57:10,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:57:10,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086959565] [2022-10-16 13:57:10,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086959565] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:57:10,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728493461] [2022-10-16 13:57:10,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:57:10,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:57:10,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:57:10,600 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:57:10,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 13:57:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:12,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 5805 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 13:57:12,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:57:12,895 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2022-10-16 13:57:12,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:57:13,086 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-10-16 13:57:13,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728493461] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:57:13,087 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:57:13,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2022-10-16 13:57:13,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346966277] [2022-10-16 13:57:13,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:57:13,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 13:57:13,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:57:13,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 13:57:13,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-10-16 13:57:13,090 INFO L87 Difference]: Start difference. First operand 872 states and 1157 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 9 states have internal predecessors, (92), 2 states have call successors, (35), 5 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-10-16 13:57:16,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:57:17,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:57:24,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:57:24,455 INFO L93 Difference]: Finished difference Result 1701 states and 2254 transitions. [2022-10-16 13:57:24,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 13:57:24,456 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 9 states have internal predecessors, (92), 2 states have call successors, (35), 5 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 243 [2022-10-16 13:57:24,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:57:24,466 INFO L225 Difference]: With dead ends: 1701 [2022-10-16 13:57:24,466 INFO L226 Difference]: Without dead ends: 902 [2022-10-16 13:57:24,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-10-16 13:57:24,472 INFO L413 NwaCegarLoop]: 1056 mSDtfsCounter, 974 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 2884 mSolverCounterSat, 891 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 3445 SdHoareTripleChecker+Invalid, 3775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 891 IncrementalHoareTripleChecker+Valid, 2884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:57:24,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 3445 Invalid, 3775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [891 Valid, 2884 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2022-10-16 13:57:24,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2022-10-16 13:57:24,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 881. [2022-10-16 13:57:24,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 594 states have (on average 1.2255892255892256) internal successors, (728), 616 states have internal predecessors, (728), 220 states have call successors, (220), 52 states have call predecessors, (220), 51 states have return successors, (218), 217 states have call predecessors, (218), 218 states have call successors, (218) [2022-10-16 13:57:24,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1166 transitions. [2022-10-16 13:57:24,525 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1166 transitions. Word has length 243 [2022-10-16 13:57:24,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:57:24,526 INFO L495 AbstractCegarLoop]: Abstraction has 881 states and 1166 transitions. [2022-10-16 13:57:24,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 9 states have internal predecessors, (92), 2 states have call successors, (35), 5 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-10-16 13:57:24,527 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1166 transitions. [2022-10-16 13:57:24,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-10-16 13:57:24,531 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:57:24,531 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 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] [2022-10-16 13:57:24,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 13:57:24,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:57:24,746 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 13:57:24,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:57:24,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1536269497, now seen corresponding path program 2 times [2022-10-16 13:57:24,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:57:24,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817788689] [2022-10-16 13:57:24,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:57:24,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:57:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:57:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 13:57:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:57:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:57:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:57:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:57:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 13:57:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:57:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 13:57:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 13:57:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:57:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 13:57:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 13:57:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 13:57:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 13:57:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 13:57:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-16 13:57:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-16 13:57:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-10-16 13:57:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-10-16 13:57:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-10-16 13:57:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:26,811 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-10-16 13:57:26,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:57:26,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817788689] [2022-10-16 13:57:26,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817788689] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:57:26,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755296931] [2022-10-16 13:57:26,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:57:26,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:57:26,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:57:26,814 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:57:26,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 13:57:29,145 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:57:29,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:57:29,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 5823 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 13:57:29,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:57:29,289 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 30 proven. 26 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2022-10-16 13:57:29,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:57:29,601 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-10-16 13:57:29,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755296931] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:57:29,601 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:57:29,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 18 [2022-10-16 13:57:29,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694791568] [2022-10-16 13:57:29,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:57:29,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 13:57:29,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:57:29,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 13:57:29,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-10-16 13:57:29,604 INFO L87 Difference]: Start difference. First operand 881 states and 1166 transitions. Second operand has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 15 states have internal predecessors, (110), 2 states have call successors, (35), 5 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-10-16 13:57:36,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:57:40,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:57:47,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:57:47,468 INFO L93 Difference]: Finished difference Result 1719 states and 2275 transitions. [2022-10-16 13:57:47,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 13:57:47,469 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 15 states have internal predecessors, (110), 2 states have call successors, (35), 5 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 252 [2022-10-16 13:57:47,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:57:47,476 INFO L225 Difference]: With dead ends: 1719 [2022-10-16 13:57:47,476 INFO L226 Difference]: Without dead ends: 920 [2022-10-16 13:57:47,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 603 GetRequests, 573 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=179, Invalid=751, Unknown=0, NotChecked=0, Total=930 [2022-10-16 13:57:47,481 INFO L413 NwaCegarLoop]: 1058 mSDtfsCounter, 990 mSDsluCounter, 5212 mSDsCounter, 0 mSdLazyCounter, 7067 mSolverCounterSat, 900 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 6270 SdHoareTripleChecker+Invalid, 7968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 900 IncrementalHoareTripleChecker+Valid, 7067 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:57:47,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 6270 Invalid, 7968 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [900 Valid, 7067 Invalid, 1 Unknown, 0 Unchecked, 17.1s Time] [2022-10-16 13:57:47,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2022-10-16 13:57:47,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 899. [2022-10-16 13:57:47,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 612 states have (on average 1.2189542483660132) internal successors, (746), 634 states have internal predecessors, (746), 220 states have call successors, (220), 52 states have call predecessors, (220), 51 states have return successors, (218), 217 states have call predecessors, (218), 218 states have call successors, (218) [2022-10-16 13:57:47,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1184 transitions. [2022-10-16 13:57:47,535 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1184 transitions. Word has length 252 [2022-10-16 13:57:47,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:57:47,536 INFO L495 AbstractCegarLoop]: Abstraction has 899 states and 1184 transitions. [2022-10-16 13:57:47,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 15 states have internal predecessors, (110), 2 states have call successors, (35), 5 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-10-16 13:57:47,537 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1184 transitions. [2022-10-16 13:57:47,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-10-16 13:57:47,541 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:57:47,542 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-10-16 13:57:47,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 13:57:47,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:57:47,755 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 13:57:47,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:57:47,756 INFO L85 PathProgramCache]: Analyzing trace with hash -537937420, now seen corresponding path program 1 times [2022-10-16 13:57:47,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:57:47,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219928403] [2022-10-16 13:57:47,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:57:47,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:57:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:52,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:57:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:52,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 13:57:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:52,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:57:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:52,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:57:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:52,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:57:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:57:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 13:57:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:57:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 13:57:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:57:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:57:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 13:57:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:57:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 13:57:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 13:57:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 13:57:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 13:57:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-10-16 13:57:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 13:57:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-10-16 13:57:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:57:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-16 13:57:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 13:57:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-10-16 13:57:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-10-16 13:57:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-10-16 13:57:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-10-16 13:57:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:53,539 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 6 proven. 61 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2022-10-16 13:57:53,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:57:53,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219928403] [2022-10-16 13:57:53,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219928403] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:57:53,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626272562] [2022-10-16 13:57:53,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:57:53,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:57:53,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:57:53,542 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:57:53,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 13:57:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:57:55,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 5677 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-16 13:57:55,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:57:55,529 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2022-10-16 13:57:55,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:57:55,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626272562] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:57:55,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:57:55,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [13] total 23 [2022-10-16 13:57:55,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877181042] [2022-10-16 13:57:55,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:57:55,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 13:57:55,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:57:55,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 13:57:55,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=461, Unknown=0, NotChecked=0, Total=506 [2022-10-16 13:57:55,532 INFO L87 Difference]: Start difference. First operand 899 states and 1184 transitions. Second operand has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 13 states have internal predecessors, (95), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2022-10-16 13:57:56,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:57:56,244 INFO L93 Difference]: Finished difference Result 1331 states and 1717 transitions. [2022-10-16 13:57:56,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 13:57:56,245 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 13 states have internal predecessors, (95), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) Word has length 253 [2022-10-16 13:57:56,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:57:56,253 INFO L225 Difference]: With dead ends: 1331 [2022-10-16 13:57:56,253 INFO L226 Difference]: Without dead ends: 896 [2022-10-16 13:57:56,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=822, Unknown=0, NotChecked=0, Total=930 [2022-10-16 13:57:56,257 INFO L413 NwaCegarLoop]: 1126 mSDtfsCounter, 62 mSDsluCounter, 13425 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 14551 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:57:56,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 14551 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 13:57:56,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2022-10-16 13:57:56,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 896. [2022-10-16 13:57:56,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 609 states have (on average 1.2167487684729064) internal successors, (741), 631 states have internal predecessors, (741), 220 states have call successors, (220), 52 states have call predecessors, (220), 51 states have return successors, (218), 217 states have call predecessors, (218), 218 states have call successors, (218) [2022-10-16 13:57:56,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1179 transitions. [2022-10-16 13:57:56,310 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1179 transitions. Word has length 253 [2022-10-16 13:57:56,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:57:56,311 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1179 transitions. [2022-10-16 13:57:56,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 13 states have internal predecessors, (95), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2022-10-16 13:57:56,311 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1179 transitions. [2022-10-16 13:57:56,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-10-16 13:57:56,315 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:57:56,316 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 11, 10, 10, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-10-16 13:57:56,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 13:57:56,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:57:56,530 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 13:57:56,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:57:56,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1417212313, now seen corresponding path program 3 times [2022-10-16 13:57:56,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:57:56,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589954731] [2022-10-16 13:57:56,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:57:56,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:57:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:58:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 13:58:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:58:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:58:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:58:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:58:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 13:58:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:58:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 13:58:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 13:58:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:58:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 13:58:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 13:58:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 13:58:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 13:58:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 13:58:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-16 13:58:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-16 13:58:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-10-16 13:58:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-16 13:58:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-10-16 13:58:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:01,657 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 6 proven. 68 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2022-10-16 13:58:01,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:58:01,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589954731] [2022-10-16 13:58:01,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589954731] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:58:01,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708607984] [2022-10-16 13:58:01,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 13:58:01,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:58:01,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:58:01,662 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:58:01,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 13:58:03,413 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 13:58:03,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:58:03,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 4236 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 13:58:03,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:58:03,540 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2022-10-16 13:58:03,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:58:03,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708607984] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:58:03,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:58:03,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-10-16 13:58:03,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698705794] [2022-10-16 13:58:03,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:58:03,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:58:03,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:58:03,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:58:03,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-10-16 13:58:03,544 INFO L87 Difference]: Start difference. First operand 896 states and 1179 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-10-16 13:58:03,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:58:03,822 INFO L93 Difference]: Finished difference Result 1689 states and 2220 transitions. [2022-10-16 13:58:03,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:58:03,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 270 [2022-10-16 13:58:03,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:58:03,831 INFO L225 Difference]: With dead ends: 1689 [2022-10-16 13:58:03,831 INFO L226 Difference]: Without dead ends: 956 [2022-10-16 13:58:03,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2022-10-16 13:58:03,836 INFO L413 NwaCegarLoop]: 1203 mSDtfsCounter, 243 mSDsluCounter, 4443 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 5646 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:58:03,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 5646 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:58:03,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2022-10-16 13:58:03,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 896. [2022-10-16 13:58:03,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 609 states have (on average 1.2151067323481117) internal successors, (740), 631 states have internal predecessors, (740), 220 states have call successors, (220), 52 states have call predecessors, (220), 51 states have return successors, (218), 217 states have call predecessors, (218), 218 states have call successors, (218) [2022-10-16 13:58:03,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1178 transitions. [2022-10-16 13:58:03,888 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1178 transitions. Word has length 270 [2022-10-16 13:58:03,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:58:03,889 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1178 transitions. [2022-10-16 13:58:03,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-10-16 13:58:03,890 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1178 transitions. [2022-10-16 13:58:03,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-10-16 13:58:03,894 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:58:03,894 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 11, 10, 10, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-10-16 13:58:03,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 13:58:04,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:58:04,108 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 13:58:04,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:58:04,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1415365271, now seen corresponding path program 1 times [2022-10-16 13:58:04,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:58:04,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269586637] [2022-10-16 13:58:04,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:58:04,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:58:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:58:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 13:58:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:58:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:58:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:58:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:58:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 13:58:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:58:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 13:58:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 13:58:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:58:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 13:58:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 13:58:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 13:58:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 13:58:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 13:58:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-16 13:58:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-16 13:58:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-10-16 13:58:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-16 13:58:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-10-16 13:58:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 6 proven. 68 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2022-10-16 13:58:08,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:58:08,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269586637] [2022-10-16 13:58:08,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269586637] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:58:08,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984889540] [2022-10-16 13:58:08,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:58:08,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:58:08,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:58:08,854 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:58:08,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 13:58:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:10,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 5860 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 13:58:10,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:58:10,638 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-10-16 13:58:10,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:58:10,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984889540] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:58:10,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:58:10,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-10-16 13:58:10,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140432865] [2022-10-16 13:58:10,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:58:10,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:58:10,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:58:10,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:58:10,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-10-16 13:58:10,642 INFO L87 Difference]: Start difference. First operand 896 states and 1178 transitions. Second operand has 6 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-10-16 13:58:10,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:58:10,908 INFO L93 Difference]: Finished difference Result 1755 states and 2302 transitions. [2022-10-16 13:58:10,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:58:10,908 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 270 [2022-10-16 13:58:10,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:58:10,918 INFO L225 Difference]: With dead ends: 1755 [2022-10-16 13:58:10,918 INFO L226 Difference]: Without dead ends: 896 [2022-10-16 13:58:10,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2022-10-16 13:58:10,924 INFO L413 NwaCegarLoop]: 1118 mSDtfsCounter, 311 mSDsluCounter, 4023 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 5141 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:58:10,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 5141 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:58:10,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2022-10-16 13:58:10,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 896. [2022-10-16 13:58:10,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 609 states have (on average 1.2134646962233169) internal successors, (739), 631 states have internal predecessors, (739), 220 states have call successors, (220), 52 states have call predecessors, (220), 51 states have return successors, (218), 217 states have call predecessors, (218), 218 states have call successors, (218) [2022-10-16 13:58:10,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1177 transitions. [2022-10-16 13:58:10,979 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1177 transitions. Word has length 270 [2022-10-16 13:58:10,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:58:10,980 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1177 transitions. [2022-10-16 13:58:10,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-10-16 13:58:10,981 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1177 transitions. [2022-10-16 13:58:10,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-10-16 13:58:10,984 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:58:10,985 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 11, 10, 10, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-10-16 13:58:11,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 13:58:11,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:58:11,199 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 13:58:11,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:58:11,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1037126311, now seen corresponding path program 1 times [2022-10-16 13:58:11,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:58:11,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573545989] [2022-10-16 13:58:11,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:58:11,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:58:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:58:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 13:58:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:58:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:58:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:58:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:58:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 13:58:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:58:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 13:58:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 13:58:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:58:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 13:58:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 13:58:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 13:58:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 13:58:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 13:58:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-16 13:58:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-16 13:58:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-10-16 13:58:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-16 13:58:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-10-16 13:58:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:15,647 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 6 proven. 68 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2022-10-16 13:58:15,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:58:15,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573545989] [2022-10-16 13:58:15,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573545989] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:58:15,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048432878] [2022-10-16 13:58:15,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:58:15,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:58:15,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:58:15,649 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:58:15,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 13:58:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:17,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 5861 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 13:58:17,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:58:17,699 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-10-16 13:58:17,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:58:17,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048432878] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:58:17,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:58:17,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19 [2022-10-16 13:58:17,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698852799] [2022-10-16 13:58:17,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:58:17,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 13:58:17,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:58:17,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 13:58:17,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2022-10-16 13:58:17,702 INFO L87 Difference]: Start difference. First operand 896 states and 1177 transitions. Second operand has 9 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-10-16 13:58:18,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:58:18,358 INFO L93 Difference]: Finished difference Result 1751 states and 2295 transitions. [2022-10-16 13:58:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:58:18,359 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 270 [2022-10-16 13:58:18,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:58:18,365 INFO L225 Difference]: With dead ends: 1751 [2022-10-16 13:58:18,366 INFO L226 Difference]: Without dead ends: 896 [2022-10-16 13:58:18,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2022-10-16 13:58:18,371 INFO L413 NwaCegarLoop]: 1115 mSDtfsCounter, 616 mSDsluCounter, 6938 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 8053 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:58:18,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 8053 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 13:58:18,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2022-10-16 13:58:18,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 896. [2022-10-16 13:58:18,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 609 states have (on average 1.2118226600985222) internal successors, (738), 631 states have internal predecessors, (738), 220 states have call successors, (220), 52 states have call predecessors, (220), 51 states have return successors, (218), 217 states have call predecessors, (218), 218 states have call successors, (218) [2022-10-16 13:58:18,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1176 transitions. [2022-10-16 13:58:18,431 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1176 transitions. Word has length 270 [2022-10-16 13:58:18,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:58:18,431 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1176 transitions. [2022-10-16 13:58:18,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-10-16 13:58:18,432 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1176 transitions. [2022-10-16 13:58:18,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-10-16 13:58:18,434 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:58:18,434 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 11, 10, 10, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-10-16 13:58:18,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 13:58:18,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:58:18,649 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 13:58:18,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:58:18,650 INFO L85 PathProgramCache]: Analyzing trace with hash -610236631, now seen corresponding path program 1 times [2022-10-16 13:58:18,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:58:18,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868698868] [2022-10-16 13:58:18,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:58:18,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:58:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:21,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:58:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:21,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 13:58:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:21,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:58:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:21,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:58:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:21,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:58:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:21,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:21,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:21,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:21,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:58:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:21,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:21,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 13:58:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:58:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 13:58:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 13:58:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:58:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 13:58:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 13:58:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 13:58:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 13:58:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 13:58:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-16 13:58:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-16 13:58:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-10-16 13:58:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-16 13:58:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-10-16 13:58:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:22,210 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 6 proven. 68 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2022-10-16 13:58:22,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:58:22,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868698868] [2022-10-16 13:58:22,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868698868] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:58:22,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130833223] [2022-10-16 13:58:22,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:58:22,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:58:22,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:58:22,214 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:58:22,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 13:58:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:24,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 5862 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 13:58:24,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:58:24,386 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 195 proven. 2 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2022-10-16 13:58:24,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:58:24,664 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2022-10-16 13:58:24,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130833223] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:58:24,664 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:58:24,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 6] total 21 [2022-10-16 13:58:24,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696686372] [2022-10-16 13:58:24,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:58:24,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 13:58:24,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:58:24,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 13:58:24,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2022-10-16 13:58:24,668 INFO L87 Difference]: Start difference. First operand 896 states and 1176 transitions. Second operand has 21 states, 17 states have (on average 7.647058823529412) internal successors, (130), 15 states have internal predecessors, (130), 7 states have call successors, (51), 5 states have call predecessors, (51), 6 states have return successors, (49), 6 states have call predecessors, (49), 7 states have call successors, (49) [2022-10-16 13:58:33,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:58:37,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:58:48,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:58:48,033 INFO L93 Difference]: Finished difference Result 1795 states and 2359 transitions. [2022-10-16 13:58:48,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 13:58:48,034 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 7.647058823529412) internal successors, (130), 15 states have internal predecessors, (130), 7 states have call successors, (51), 5 states have call predecessors, (51), 6 states have return successors, (49), 6 states have call predecessors, (49), 7 states have call successors, (49) Word has length 270 [2022-10-16 13:58:48,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:58:48,041 INFO L225 Difference]: With dead ends: 1795 [2022-10-16 13:58:48,041 INFO L226 Difference]: Without dead ends: 917 [2022-10-16 13:58:48,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 13:58:48,046 INFO L413 NwaCegarLoop]: 1016 mSDtfsCounter, 1893 mSDsluCounter, 6338 mSDsCounter, 0 mSdLazyCounter, 10211 mSolverCounterSat, 1264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1901 SdHoareTripleChecker+Valid, 7354 SdHoareTripleChecker+Invalid, 11475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1264 IncrementalHoareTripleChecker+Valid, 10211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:58:48,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1901 Valid, 7354 Invalid, 11475 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1264 Valid, 10211 Invalid, 0 Unknown, 0 Unchecked, 22.6s Time] [2022-10-16 13:58:48,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-10-16 13:58:48,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 896. [2022-10-16 13:58:48,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 609 states have (on average 1.2085385878489328) internal successors, (736), 630 states have internal predecessors, (736), 220 states have call successors, (220), 52 states have call predecessors, (220), 51 states have return successors, (218), 217 states have call predecessors, (218), 218 states have call successors, (218) [2022-10-16 13:58:48,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1174 transitions. [2022-10-16 13:58:48,145 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1174 transitions. Word has length 270 [2022-10-16 13:58:48,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:58:48,145 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1174 transitions. [2022-10-16 13:58:48,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 7.647058823529412) internal successors, (130), 15 states have internal predecessors, (130), 7 states have call successors, (51), 5 states have call predecessors, (51), 6 states have return successors, (49), 6 states have call predecessors, (49), 7 states have call successors, (49) [2022-10-16 13:58:48,146 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1174 transitions. [2022-10-16 13:58:48,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-10-16 13:58:48,148 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:58:48,148 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 11, 10, 10, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-10-16 13:58:48,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 13:58:48,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 13:58:48,363 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 13:58:48,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:58:48,364 INFO L85 PathProgramCache]: Analyzing trace with hash -957878716, now seen corresponding path program 1 times [2022-10-16 13:58:48,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:58:48,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471397613] [2022-10-16 13:58:48,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:58:48,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:58:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:58:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 13:58:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:58:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:58:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:58:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:58:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 13:58:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 13:58:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 13:58:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 13:58:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:58:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-16 13:58:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-10-16 13:58:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-10-16 13:58:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-10-16 13:58:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-16 13:58:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 13:58:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:58:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:58:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:58:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-10-16 13:58:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 13:58:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-10-16 13:58:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 13:58:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-10-16 13:58:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:51,822 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 19 proven. 55 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2022-10-16 13:58:51,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:58:51,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471397613] [2022-10-16 13:58:51,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471397613] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:58:51,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747914473] [2022-10-16 13:58:51,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:58:51,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:58:51,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:58:51,824 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:58:51,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 13:58:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:58:53,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 5881 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 13:58:53,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:58:54,057 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 40 proven. 4 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2022-10-16 13:58:54,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:58:54,297 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2022-10-16 13:58:54,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747914473] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:58:54,298 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:58:54,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 6] total 22 [2022-10-16 13:58:54,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586389381] [2022-10-16 13:58:54,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:58:54,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 13:58:54,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:58:54,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 13:58:54,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2022-10-16 13:58:54,301 INFO L87 Difference]: Start difference. First operand 896 states and 1174 transitions. Second operand has 22 states, 18 states have (on average 7.111111111111111) internal successors, (128), 15 states have internal predecessors, (128), 7 states have call successors, (49), 6 states have call predecessors, (49), 6 states have return successors, (46), 6 states have call predecessors, (46), 7 states have call successors, (46) [2022-10-16 13:58:58,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:59:02,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:59:05,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:59:06,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:59:17,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:59:17,685 INFO L93 Difference]: Finished difference Result 1790 states and 2348 transitions. [2022-10-16 13:59:17,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 13:59:17,687 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 7.111111111111111) internal successors, (128), 15 states have internal predecessors, (128), 7 states have call successors, (49), 6 states have call predecessors, (49), 6 states have return successors, (46), 6 states have call predecessors, (46), 7 states have call successors, (46) Word has length 274 [2022-10-16 13:59:17,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:59:17,693 INFO L225 Difference]: With dead ends: 1790 [2022-10-16 13:59:17,694 INFO L226 Difference]: Without dead ends: 917 [2022-10-16 13:59:17,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=164, Invalid=1242, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 13:59:17,699 INFO L413 NwaCegarLoop]: 1011 mSDtfsCounter, 2071 mSDsluCounter, 5870 mSDsCounter, 0 mSdLazyCounter, 9490 mSolverCounterSat, 1517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2077 SdHoareTripleChecker+Valid, 6881 SdHoareTripleChecker+Invalid, 11007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1517 IncrementalHoareTripleChecker+Valid, 9490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:59:17,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2077 Valid, 6881 Invalid, 11007 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1517 Valid, 9490 Invalid, 0 Unknown, 0 Unchecked, 22.6s Time] [2022-10-16 13:59:17,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-10-16 13:59:17,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 896. [2022-10-16 13:59:17,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 609 states have (on average 1.2052545155993433) internal successors, (734), 629 states have internal predecessors, (734), 220 states have call successors, (220), 52 states have call predecessors, (220), 51 states have return successors, (218), 217 states have call predecessors, (218), 218 states have call successors, (218) [2022-10-16 13:59:17,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1172 transitions. [2022-10-16 13:59:17,821 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1172 transitions. Word has length 274 [2022-10-16 13:59:17,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:59:17,821 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1172 transitions. [2022-10-16 13:59:17,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 7.111111111111111) internal successors, (128), 15 states have internal predecessors, (128), 7 states have call successors, (49), 6 states have call predecessors, (49), 6 states have return successors, (46), 6 states have call predecessors, (46), 7 states have call successors, (46) [2022-10-16 13:59:17,822 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1172 transitions. [2022-10-16 13:59:17,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-10-16 13:59:17,824 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:59:17,824 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 11, 10, 10, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:59:17,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 13:59:18,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:59:18,038 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_linux_usb_urb_usb_alloc_urbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_linux_usb_urb_usb_alloc_urbErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 13:59:18,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:59:18,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1598356873, now seen corresponding path program 1 times [2022-10-16 13:59:18,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:59:18,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314867485] [2022-10-16 13:59:18,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:59:18,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:59:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:59:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 13:59:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:59:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:59:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:59:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:59:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:59:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:59:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:59:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 13:59:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:59:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:59:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:59:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 13:59:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-16 13:59:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:59:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:59:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:59:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 13:59:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:59:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:59:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:59:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-10-16 13:59:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:59:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:59:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:59:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-16 13:59:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 13:59:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-10-16 13:59:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-10-16 13:59:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-10-16 13:59:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-16 13:59:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-10-16 13:59:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:59:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:59:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:59:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-16 13:59:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-10-16 13:59:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-10-16 13:59:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-10-16 13:59:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-10-16 13:59:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:24,401 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2022-10-16 13:59:24,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:59:24,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314867485] [2022-10-16 13:59:24,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314867485] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:59:24,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101697076] [2022-10-16 13:59:24,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:59:24,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:59:24,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:59:24,404 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:59:24,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 13:59:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:59:26,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 5900 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 13:59:26,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:59:26,609 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 717 trivial. 0 not checked. [2022-10-16 13:59:26,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:59:26,869 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2022-10-16 13:59:26,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101697076] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:59:26,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:59:26,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 6] total 15 [2022-10-16 13:59:26,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608774741] [2022-10-16 13:59:26,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:59:26,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 13:59:26,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:59:26,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 13:59:26,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:59:26,872 INFO L87 Difference]: Start difference. First operand 896 states and 1172 transitions. Second operand has 15 states, 12 states have (on average 7.833333333333333) internal successors, (94), 9 states have internal predecessors, (94), 5 states have call successors, (41), 6 states have call predecessors, (41), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2022-10-16 13:59:30,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:59:32,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:59:33,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:59:35,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:59:36,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []