/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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:12:53,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:12:53,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:12:53,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:12:53,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:12:53,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:12:53,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:12:53,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:12:53,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:12:53,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:12:53,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:12:53,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:12:53,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:12:53,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:12:53,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:12:53,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:12:53,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:12:53,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:12:53,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:12:53,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:12:53,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:12:53,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:12:53,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:12:53,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:12:53,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:12:53,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:12:53,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:12:53,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:12:53,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:12:53,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:12:53,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:12:53,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:12:53,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:12:53,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:12:53,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:12:53,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:12:53,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:12:53,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:12:53,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:12:53,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:12:53,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:12:53,983 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 [2022-10-15 21:12:54,054 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:12:54,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:12:54,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:12:54,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:12:54,058 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:12:54,059 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:12:54,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:12:54,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:12:54,064 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:12:54,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:12:54,066 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:12:54,066 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:12:54,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:12:54,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:12:54,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:12:54,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:12:54,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:12:54,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:12:54,068 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:12:54,068 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:12:54,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:12:54,068 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:12:54,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:12:54,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:12:54,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:12:54,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:12:54,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:12:54,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:12:54,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:12:54,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:12:54,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:12:54,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:12:54,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:12:54,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:12:54,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:12:54,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:12:54,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:12:54,581 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:12:54,582 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:12:54,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2022-10-15 21:12:54,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6139dac44/712827912a554d639f28f3a5cadef522/FLAGe73f9ad1c [2022-10-15 21:12:56,209 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:12:56,211 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2022-10-15 21:12:56,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6139dac44/712827912a554d639f28f3a5cadef522/FLAGe73f9ad1c [2022-10-15 21:12:56,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6139dac44/712827912a554d639f28f3a5cadef522 [2022-10-15 21:12:56,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:12:56,364 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:12:56,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:12:56,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:12:56,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:12:56,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:12:56" (1/1) ... [2022-10-15 21:12:56,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d451994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:56, skipping insertion in model container [2022-10-15 21:12:56,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:12:56" (1/1) ... [2022-10-15 21:12:56,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:12:56,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:12:57,770 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i[182154,182167] [2022-10-15 21:12:58,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:12:58,618 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:12:58,992 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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i[182154,182167] [2022-10-15 21:12:59,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:12:59,390 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:12:59,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59 WrapperNode [2022-10-15 21:12:59,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:12:59,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:12:59,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:12:59,395 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:12:59,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:12:59,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:12:59,740 INFO L138 Inliner]: procedures = 174, calls = 1340, calls flagged for inlining = 82, calls inlined = 66, statements flattened = 2631 [2022-10-15 21:12:59,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:12:59,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:12:59,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:12:59,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:12:59,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:12:59,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:12:59,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:12:59,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:12:59,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:12:59,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:13:00,010 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:13:00,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:13:00,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:13:00,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:13:00,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:13:00,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:13:00,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (1/1) ... [2022-10-15 21:13:00,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:13:00,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:00,117 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) [2022-10-15 21:13:00,184 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 [2022-10-15 21:13:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_reset_device [2022-10-15 21:13:00,245 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_reset_device [2022-10-15 21:13:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_resume [2022-10-15 21:13:00,246 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_resume [2022-10-15 21:13:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:13:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-10-15 21:13:00,246 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-10-15 21:13:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_12 [2022-10-15 21:13:00,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_12 [2022-10-15 21:13:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:13:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:13:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:13:00,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:13:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:13:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-10-15 21:13:00,248 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-10-15 21:13:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-10-15 21:13:00,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-10-15 21:13:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:13:00,248 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:13:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-15 21:13:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-15 21:13:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:13:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:13:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-10-15 21:13:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-10-15 21:13:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_submit_rx_urb_fwload [2022-10-15 21:13:00,250 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_submit_rx_urb_fwload [2022-10-15 21:13:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-15 21:13:00,250 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-15 21:13:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-10-15 21:13:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-10-15 21:13:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_submit_rx_urb [2022-10-15 21:13:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_submit_rx_urb [2022-10-15 21:13:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_receive_fwload [2022-10-15 21:13:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_receive_fwload [2022-10-15 21:13:00,251 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:13:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:13:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_send_fw_pkt [2022-10-15 21:13:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_send_fw_pkt [2022-10-15 21:13:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure __if_usb_submit_rx_urb [2022-10-15 21:13:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __if_usb_submit_rx_urb [2022-10-15 21:13:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:13:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:13:00,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:13:00,253 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_free [2022-10-15 21:13:00,253 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_free [2022-10-15 21:13:00,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:13:00,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:13:00,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:13:00,254 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:13:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:13:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:13:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:13:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-10-15 21:13:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-10-15 21:13:00,256 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_disconnect [2022-10-15 21:13:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_disconnect [2022-10-15 21:13:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure usb_tx_block [2022-10-15 21:13:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_tx_block [2022-10-15 21:13:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:13:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-10-15 21:13:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-10-15 21:13:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_9 [2022-10-15 21:13:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_9 [2022-10-15 21:13:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-15 21:13:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-15 21:13:00,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:13:00,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:13:00,260 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 21:13:00,260 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:13:00,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:13:00,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2022-10-15 21:13:00,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2022-10-15 21:13:00,261 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-10-15 21:13:00,262 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-10-15 21:13:00,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:13:00,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2022-10-15 21:13:00,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2022-10-15 21:13:00,263 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-15 21:13:00,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-15 21:13:00,263 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-10-15 21:13:00,263 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-10-15 21:13:00,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2022-10-15 21:13:00,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2022-10-15 21:13:00,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:13:00,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:13:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-10-15 21:13:00,265 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-10-15 21:13:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_card [2022-10-15 21:13:00,265 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_card [2022-10-15 21:13:00,266 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:13:00,267 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:13:00,267 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-10-15 21:13:00,267 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-10-15 21:13:00,268 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_receive [2022-10-15 21:13:00,268 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_receive [2022-10-15 21:13:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-10-15 21:13:00,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-10-15 21:13:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:13:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-10-15 21:13:00,269 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-10-15 21:13:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:13:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:13:00,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:13:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:13:00,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:13:00,988 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:13:00,994 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:13:01,408 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:13:02,434 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-10-15 21:13:04,015 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:13:04,033 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:13:04,033 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:13:04,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:13:04 BoogieIcfgContainer [2022-10-15 21:13:04,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:13:04,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:13:04,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:13:04,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:13:04,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:12:56" (1/3) ... [2022-10-15 21:13:04,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67674fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:13:04, skipping insertion in model container [2022-10-15 21:13:04,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:12:59" (2/3) ... [2022-10-15 21:13:04,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67674fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:13:04, skipping insertion in model container [2022-10-15 21:13:04,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:13:04" (3/3) ... [2022-10-15 21:13:04,048 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2022-10-15 21:13:04,073 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:13:04,073 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-10-15 21:13:04,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:13:04,185 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;@4885523b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:13:04,185 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-10-15 21:13:04,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 864 states, 622 states have (on average 1.3938906752411575) internal successors, (867), 671 states have internal predecessors, (867), 178 states have call successors, (178), 45 states have call predecessors, (178), 43 states have return successors, (172), 166 states have call predecessors, (172), 172 states have call successors, (172) [2022-10-15 21:13:04,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-15 21:13:04,239 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:04,240 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:04,241 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-15 21:13:04,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:04,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1292343624, now seen corresponding path program 1 times [2022-10-15 21:13:04,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:04,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106571351] [2022-10-15 21:13:04,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:04,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:05,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:05,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:13:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:05,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:13:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:05,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:13:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:05,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:13:05,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:05,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106571351] [2022-10-15 21:13:05,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106571351] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:05,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:05,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:13:05,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849322370] [2022-10-15 21:13:05,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:05,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:13:05,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:05,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:13:05,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:13:05,408 INFO L87 Difference]: Start difference. First operand has 864 states, 622 states have (on average 1.3938906752411575) internal successors, (867), 671 states have internal predecessors, (867), 178 states have call successors, (178), 45 states have call predecessors, (178), 43 states have return successors, (172), 166 states have call predecessors, (172), 172 states have call successors, (172) Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 21:13:09,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:09,244 INFO L93 Difference]: Finished difference Result 2089 states and 3044 transitions. [2022-10-15 21:13:09,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 21:13:09,248 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2022-10-15 21:13:09,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:09,280 INFO L225 Difference]: With dead ends: 2089 [2022-10-15 21:13:09,280 INFO L226 Difference]: Without dead ends: 1177 [2022-10-15 21:13:09,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:13:09,306 INFO L413 NwaCegarLoop]: 1121 mSDtfsCounter, 1430 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 881 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 3037 SdHoareTripleChecker+Invalid, 2191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 881 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:09,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 3037 Invalid, 2191 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [881 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-10-15 21:13:09,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-10-15 21:13:09,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 898. [2022-10-15 21:13:09,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 657 states have (on average 1.386605783866058) internal successors, (911), 698 states have internal predecessors, (911), 174 states have call successors, (174), 47 states have call predecessors, (174), 47 states have return successors, (174), 165 states have call predecessors, (174), 174 states have call successors, (174) [2022-10-15 21:13:09,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1259 transitions. [2022-10-15 21:13:09,559 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1259 transitions. Word has length 55 [2022-10-15 21:13:09,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:09,560 INFO L495 AbstractCegarLoop]: Abstraction has 898 states and 1259 transitions. [2022-10-15 21:13:09,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 21:13:09,560 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1259 transitions. [2022-10-15 21:13:09,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 21:13:09,569 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:09,572 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:09,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:13:09,573 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-15 21:13:09,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:09,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1348207627, now seen corresponding path program 1 times [2022-10-15 21:13:09,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:09,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115177063] [2022-10-15 21:13:09,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:09,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:10,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:10,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:13:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:10,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:13:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:10,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 21:13:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:10,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:13:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:10,172 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:13:10,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:10,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115177063] [2022-10-15 21:13:10,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115177063] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:10,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:10,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:13:10,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637770281] [2022-10-15 21:13:10,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:10,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:13:10,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:10,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:13:10,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:13:10,181 INFO L87 Difference]: Start difference. First operand 898 states and 1259 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-15 21:13:14,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:14,994 INFO L93 Difference]: Finished difference Result 2814 states and 4027 transitions. [2022-10-15 21:13:14,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:13:14,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 71 [2022-10-15 21:13:14,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:15,015 INFO L225 Difference]: With dead ends: 2814 [2022-10-15 21:13:15,016 INFO L226 Difference]: Without dead ends: 1939 [2022-10-15 21:13:15,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:13:15,024 INFO L413 NwaCegarLoop]: 1572 mSDtfsCounter, 2345 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 1363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 3601 SdHoareTripleChecker+Invalid, 3097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1363 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:15,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2467 Valid, 3601 Invalid, 3097 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1363 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-10-15 21:13:15,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2022-10-15 21:13:15,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1440. [2022-10-15 21:13:15,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1058 states have (on average 1.3818525519848772) internal successors, (1462), 1114 states have internal predecessors, (1462), 282 states have call successors, (282), 80 states have call predecessors, (282), 80 states have return successors, (282), 267 states have call predecessors, (282), 282 states have call successors, (282) [2022-10-15 21:13:15,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 2026 transitions. [2022-10-15 21:13:15,186 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 2026 transitions. Word has length 71 [2022-10-15 21:13:15,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:15,187 INFO L495 AbstractCegarLoop]: Abstraction has 1440 states and 2026 transitions. [2022-10-15 21:13:15,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-15 21:13:15,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 2026 transitions. [2022-10-15 21:13:15,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 21:13:15,191 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:15,192 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:15,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:13:15,193 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-15 21:13:15,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:15,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1075457063, now seen corresponding path program 1 times [2022-10-15 21:13:15,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:15,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420977878] [2022-10-15 21:13:15,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:15,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:13:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:13:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 21:13:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:13:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:13:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:13:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,792 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 21:13:15,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:15,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420977878] [2022-10-15 21:13:15,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420977878] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:15,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:15,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:13:15,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836991901] [2022-10-15 21:13:15,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:15,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:13:15,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:15,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:13:15,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:13:15,802 INFO L87 Difference]: Start difference. First operand 1440 states and 2026 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 21:13:21,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:21,198 INFO L93 Difference]: Finished difference Result 2988 states and 4307 transitions. [2022-10-15 21:13:21,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:13:21,199 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 74 [2022-10-15 21:13:21,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:21,229 INFO L225 Difference]: With dead ends: 2988 [2022-10-15 21:13:21,230 INFO L226 Difference]: Without dead ends: 2986 [2022-10-15 21:13:21,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:13:21,235 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 2125 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 1170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2251 SdHoareTripleChecker+Valid, 4234 SdHoareTripleChecker+Invalid, 3460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1170 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:21,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2251 Valid, 4234 Invalid, 3460 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1170 Valid, 2290 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-10-15 21:13:21,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2022-10-15 21:13:21,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 2239. [2022-10-15 21:13:21,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2239 states, 1656 states have (on average 1.3804347826086956) internal successors, (2286), 1734 states have internal predecessors, (2286), 440 states have call successors, (440), 123 states have call predecessors, (440), 123 states have return successors, (440), 416 states have call predecessors, (440), 440 states have call successors, (440) [2022-10-15 21:13:21,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 3166 transitions. [2022-10-15 21:13:21,456 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 3166 transitions. Word has length 74 [2022-10-15 21:13:21,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:21,457 INFO L495 AbstractCegarLoop]: Abstraction has 2239 states and 3166 transitions. [2022-10-15 21:13:21,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 21:13:21,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 3166 transitions. [2022-10-15 21:13:21,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-10-15 21:13:21,463 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:21,464 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:21,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:13:21,465 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-15 21:13:21,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:21,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1677218393, now seen corresponding path program 1 times [2022-10-15 21:13:21,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:21,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137860495] [2022-10-15 21:13:21,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:21,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:22,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:22,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:13:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:22,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:13:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:22,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 21:13:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:22,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:13:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:22,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:13:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:22,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:13:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:22,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-15 21:13:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:22,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-15 21:13:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:22,350 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 21:13:22,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:22,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137860495] [2022-10-15 21:13:22,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137860495] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:22,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:22,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 21:13:22,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38559871] [2022-10-15 21:13:22,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:22,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:13:22,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:22,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:13:22,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:13:22,354 INFO L87 Difference]: Start difference. First operand 2239 states and 3166 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:13:27,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:27,172 INFO L93 Difference]: Finished difference Result 6360 states and 9361 transitions. [2022-10-15 21:13:27,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 21:13:27,173 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 96 [2022-10-15 21:13:27,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:27,215 INFO L225 Difference]: With dead ends: 6360 [2022-10-15 21:13:27,215 INFO L226 Difference]: Without dead ends: 4198 [2022-10-15 21:13:27,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-10-15 21:13:27,233 INFO L413 NwaCegarLoop]: 1555 mSDtfsCounter, 2442 mSDsluCounter, 4910 mSDsCounter, 0 mSdLazyCounter, 2487 mSolverCounterSat, 1032 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2529 SdHoareTripleChecker+Valid, 6465 SdHoareTripleChecker+Invalid, 3519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1032 IncrementalHoareTripleChecker+Valid, 2487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:27,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2529 Valid, 6465 Invalid, 3519 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1032 Valid, 2487 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-10-15 21:13:27,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4198 states. [2022-10-15 21:13:27,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4198 to 2245. [2022-10-15 21:13:27,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2245 states, 1662 states have (on average 1.3790613718411553) internal successors, (2292), 1740 states have internal predecessors, (2292), 440 states have call successors, (440), 123 states have call predecessors, (440), 123 states have return successors, (440), 416 states have call predecessors, (440), 440 states have call successors, (440) [2022-10-15 21:13:27,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 3172 transitions. [2022-10-15 21:13:27,526 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 3172 transitions. Word has length 96 [2022-10-15 21:13:27,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:27,528 INFO L495 AbstractCegarLoop]: Abstraction has 2245 states and 3172 transitions. [2022-10-15 21:13:27,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:13:27,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 3172 transitions. [2022-10-15 21:13:27,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-15 21:13:27,535 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:27,535 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:27,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:13:27,536 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-15 21:13:27,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:27,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1784904397, now seen corresponding path program 1 times [2022-10-15 21:13:27,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:27,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212932533] [2022-10-15 21:13:27,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:27,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:13:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:13:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 21:13:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:13:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:13:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:13:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-15 21:13:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-15 21:13:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-15 21:13:28,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:28,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212932533] [2022-10-15 21:13:28,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212932533] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:28,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:28,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:13:28,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219220526] [2022-10-15 21:13:28,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:28,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:13:28,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:28,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:13:28,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:13:28,164 INFO L87 Difference]: Start difference. First operand 2245 states and 3172 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:13:31,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:31,928 INFO L93 Difference]: Finished difference Result 3454 states and 5077 transitions. [2022-10-15 21:13:31,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:13:31,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 98 [2022-10-15 21:13:31,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:31,965 INFO L225 Difference]: With dead ends: 3454 [2022-10-15 21:13:31,965 INFO L226 Difference]: Without dead ends: 3452 [2022-10-15 21:13:31,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:13:31,978 INFO L413 NwaCegarLoop]: 1276 mSDtfsCounter, 1132 mSDsluCounter, 2730 mSDsCounter, 0 mSdLazyCounter, 1677 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 4006 SdHoareTripleChecker+Invalid, 2272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 1677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:31,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1223 Valid, 4006 Invalid, 2272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 1677 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-10-15 21:13:31,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3452 states. [2022-10-15 21:13:32,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3452 to 2357. [2022-10-15 21:13:32,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2357 states, 1750 states have (on average 1.3771428571428572) internal successors, (2410), 1828 states have internal predecessors, (2410), 464 states have call successors, (464), 123 states have call predecessors, (464), 123 states have return successors, (464), 440 states have call predecessors, (464), 464 states have call successors, (464) [2022-10-15 21:13:32,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 3338 transitions. [2022-10-15 21:13:32,219 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 3338 transitions. Word has length 98 [2022-10-15 21:13:32,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:32,220 INFO L495 AbstractCegarLoop]: Abstraction has 2357 states and 3338 transitions. [2022-10-15 21:13:32,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:13:32,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 3338 transitions. [2022-10-15 21:13:32,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-10-15 21:13:32,226 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:32,226 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:32,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:13:32,227 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-15 21:13:32,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:32,228 INFO L85 PathProgramCache]: Analyzing trace with hash -654343940, now seen corresponding path program 1 times [2022-10-15 21:13:32,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:32,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765725748] [2022-10-15 21:13:32,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:32,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:13:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:13:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 21:13:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:13:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:13:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:13:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-15 21:13:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-15 21:13:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,770 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-15 21:13:32,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:32,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765725748] [2022-10-15 21:13:32,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765725748] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:32,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:32,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:13:32,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303048553] [2022-10-15 21:13:32,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:32,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:13:32,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:32,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:13:32,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:13:32,775 INFO L87 Difference]: Start difference. First operand 2357 states and 3338 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:13:36,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:36,073 INFO L93 Difference]: Finished difference Result 4740 states and 6799 transitions. [2022-10-15 21:13:36,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:13:36,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 111 [2022-10-15 21:13:36,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:36,109 INFO L225 Difference]: With dead ends: 4740 [2022-10-15 21:13:36,109 INFO L226 Difference]: Without dead ends: 3264 [2022-10-15 21:13:36,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:13:36,131 INFO L413 NwaCegarLoop]: 1179 mSDtfsCounter, 1447 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 886 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 2247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 886 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:36,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 3062 Invalid, 2247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [886 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-10-15 21:13:36,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3264 states. [2022-10-15 21:13:36,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3264 to 2516. [2022-10-15 21:13:36,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2516 states, 1873 states have (on average 1.376401494927923) internal successors, (2578), 1956 states have internal predecessors, (2578), 486 states have call successors, (486), 137 states have call predecessors, (486), 137 states have return successors, (486), 459 states have call predecessors, (486), 486 states have call successors, (486) [2022-10-15 21:13:36,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 3550 transitions. [2022-10-15 21:13:36,380 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 3550 transitions. Word has length 111 [2022-10-15 21:13:36,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:36,382 INFO L495 AbstractCegarLoop]: Abstraction has 2516 states and 3550 transitions. [2022-10-15 21:13:36,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:13:36,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 3550 transitions. [2022-10-15 21:13:36,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-15 21:13:36,388 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:36,389 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:36,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 21:13:36,389 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-15 21:13:36,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:36,390 INFO L85 PathProgramCache]: Analyzing trace with hash -108846374, now seen corresponding path program 1 times [2022-10-15 21:13:36,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:36,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631976691] [2022-10-15 21:13:36,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:36,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:36,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:36,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:13:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:36,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:13:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:37,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 21:13:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:37,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:13:37,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:37,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:13:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:37,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:13:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:37,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-15 21:13:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:37,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-15 21:13:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:37,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-15 21:13:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:37,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-15 21:13:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-15 21:13:37,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:37,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631976691] [2022-10-15 21:13:37,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631976691] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:13:37,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125226935] [2022-10-15 21:13:37,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:37,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:37,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:37,135 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) [2022-10-15 21:13:37,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:13:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:37,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 2533 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:13:37,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:13:38,083 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-15 21:13:38,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:13:38,288 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-15 21:13:38,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125226935] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:13:38,289 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:13:38,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 9 [2022-10-15 21:13:38,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175037129] [2022-10-15 21:13:38,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:13:38,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 21:13:38,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:38,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 21:13:38,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:13:38,292 INFO L87 Difference]: Start difference. First operand 2516 states and 3550 transitions. Second operand has 10 states, 9 states have (on average 15.11111111111111) internal successors, (136), 7 states have internal predecessors, (136), 6 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17)