./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 87ebe4cbc19149709e03f5df167fc3a270d2a12f873f1a9ed2e481b56a29b864 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 22:51:46,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 22:51:46,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 22:51:46,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 22:51:46,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 22:51:46,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 22:51:46,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 22:51:46,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 22:51:46,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 22:51:46,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 22:51:46,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 22:51:46,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 22:51:46,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 22:51:46,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 22:51:46,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 22:51:46,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 22:51:46,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 22:51:46,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 22:51:46,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 22:51:46,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 22:51:46,550 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 22:51:46,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 22:51:46,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 22:51:46,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 22:51:46,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 22:51:46,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 22:51:46,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 22:51:46,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 22:51:46,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 22:51:46,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 22:51:46,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 22:51:46,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 22:51:46,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 22:51:46,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 22:51:46,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 22:51:46,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 22:51:46,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 22:51:46,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 22:51:46,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 22:51:46,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 22:51:46,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 22:51:46,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 22:51:46,573 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 22:51:46,597 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 22:51:46,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 22:51:46,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 22:51:46,599 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 22:51:46,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 22:51:46,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 22:51:46,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 22:51:46,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 22:51:46,601 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 22:51:46,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 22:51:46,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 22:51:46,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 22:51:46,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 22:51:46,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 22:51:46,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 22:51:46,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 22:51:46,603 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 22:51:46,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 22:51:46,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 22:51:46,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 22:51:46,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 22:51:46,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:51:46,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 22:51:46,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 22:51:46,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 22:51:46,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 22:51:46,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 22:51:46,607 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 22:51:46,607 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 22:51:46,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 22:51:46,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87ebe4cbc19149709e03f5df167fc3a270d2a12f873f1a9ed2e481b56a29b864 [2022-07-19 22:51:46,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 22:51:46,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 22:51:46,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 22:51:46,842 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 22:51:46,843 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 22:51:46,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i [2022-07-19 22:51:46,915 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeefd4ba5/55c70999719343d98279ecfe9b1a22db/FLAGc1ebf6fa7 [2022-07-19 22:51:47,662 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 22:51:47,662 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i [2022-07-19 22:51:47,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeefd4ba5/55c70999719343d98279ecfe9b1a22db/FLAGc1ebf6fa7 [2022-07-19 22:51:47,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeefd4ba5/55c70999719343d98279ecfe9b1a22db [2022-07-19 22:51:47,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 22:51:47,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 22:51:47,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 22:51:47,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 22:51:47,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 22:51:47,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:51:47" (1/1) ... [2022-07-19 22:51:47,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64b48ea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:51:47, skipping insertion in model container [2022-07-19 22:51:47,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:51:47" (1/1) ... [2022-07-19 22:51:47,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 22:51:47,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 22:51:49,879 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-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i[260799,260812] [2022-07-19 22:51:49,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:51:49,959 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 22:51:50,254 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-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i[260799,260812] [2022-07-19 22:51:50,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:51:50,331 INFO L208 MainTranslator]: Completed translation [2022-07-19 22:51:50,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:51:50 WrapperNode [2022-07-19 22:51:50,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 22:51:50,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 22:51:50,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 22:51:50,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 22:51:50,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:51:50" (1/1) ... [2022-07-19 22:51:50,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:51:50" (1/1) ... [2022-07-19 22:51:50,547 INFO L137 Inliner]: procedures = 204, calls = 1862, calls flagged for inlining = 100, calls inlined = 66, statements flattened = 3028 [2022-07-19 22:51:50,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 22:51:50,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 22:51:50,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 22:51:50,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 22:51:50,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:51:50" (1/1) ... [2022-07-19 22:51:50,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:51:50" (1/1) ... [2022-07-19 22:51:50,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:51:50" (1/1) ... [2022-07-19 22:51:50,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:51:50" (1/1) ... [2022-07-19 22:51:50,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:51:50" (1/1) ... [2022-07-19 22:51:50,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:51:50" (1/1) ... [2022-07-19 22:51:50,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:51:50" (1/1) ... [2022-07-19 22:51:50,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 22:51:50,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 22:51:50,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 22:51:50,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 22:51:50,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:51:50" (1/1) ... [2022-07-19 22:51:50,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:51:50,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:51:50,733 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) [2022-07-19 22:51:50,753 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 [2022-07-19 22:51:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-07-19 22:51:50,779 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-07-19 22:51:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-07-19 22:51:50,780 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-07-19 22:51:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2022-07-19 22:51:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2022-07-19 22:51:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-19 22:51:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-19 22:51:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure vhci_to_hcd [2022-07-19 22:51:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure vhci_to_hcd [2022-07-19 22:51:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 22:51:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 22:51:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 22:51:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 22:51:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-19 22:51:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-19 22:51:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-19 22:51:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-19 22:51:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_giveback_urb [2022-07-19 22:51:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_giveback_urb [2022-07-19 22:51:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 22:51:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-19 22:51:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-19 22:51:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 22:51:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-19 22:51:50,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-19 22:51:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-19 22:51:50,784 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-19 22:51:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 22:51:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 22:51:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-07-19 22:51:50,784 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-07-19 22:51:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure usbip_event_add [2022-07-19 22:51:50,785 INFO L138 BoogieDeclarations]: Found implementation of procedure usbip_event_add [2022-07-19 22:51:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-19 22:51:50,785 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-19 22:51:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-19 22:51:50,785 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-19 22:51:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-19 22:51:50,785 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-19 22:51:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-19 22:51:50,786 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-19 22:51:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-07-19 22:51:50,786 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-07-19 22:51:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-19 22:51:50,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-19 22:51:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-19 22:51:50,787 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-19 22:51:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-19 22:51:50,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-19 22:51:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-07-19 22:51:50,788 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-07-19 22:51:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2022-07-19 22:51:50,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2022-07-19 22:51:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 22:51:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure dump_port_status [2022-07-19 22:51:50,790 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_port_status [2022-07-19 22:51:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure port_to_vdev [2022-07-19 22:51:50,790 INFO L138 BoogieDeclarations]: Found implementation of procedure port_to_vdev [2022-07-19 22:51:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-19 22:51:50,792 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-19 22:51:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-19 22:51:50,792 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-19 22:51:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 22:51:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-19 22:51:50,793 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-19 22:51:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 22:51:50,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 22:51:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev [2022-07-19 22:51:50,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev [2022-07-19 22:51:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 22:51:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2022-07-19 22:51:50,794 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2022-07-19 22:51:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-07-19 22:51:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 22:51:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 22:51:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-19 22:51:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-19 22:51:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-19 22:51:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-19 22:51:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-19 22:51:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-07-19 22:51:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-07-19 22:51:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-19 22:51:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-19 22:51:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_vhci [2022-07-19 22:51:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_vhci [2022-07-19 22:51:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-07-19 22:51:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-07-19 22:51:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-19 22:51:50,797 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-19 22:51:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev [2022-07-19 22:51:50,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev [2022-07-19 22:51:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure vhci_dev [2022-07-19 22:51:50,797 INFO L138 BoogieDeclarations]: Found implementation of procedure vhci_dev [2022-07-19 22:51:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-19 22:51:50,797 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-19 22:51:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-19 22:51:50,798 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-19 22:51:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 22:51:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-19 22:51:50,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-19 22:51:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure usbip_task_init [2022-07-19 22:51:50,798 INFO L138 BoogieDeclarations]: Found implementation of procedure usbip_task_init [2022-07-19 22:51:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 22:51:50,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 22:51:51,286 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 22:51:51,288 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 22:51:53,754 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 22:51:53,774 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 22:51:53,775 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 22:51:53,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:51:53 BoogieIcfgContainer [2022-07-19 22:51:53,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 22:51:53,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 22:51:53,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 22:51:53,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 22:51:53,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:51:47" (1/3) ... [2022-07-19 22:51:53,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141036d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:51:53, skipping insertion in model container [2022-07-19 22:51:53,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:51:50" (2/3) ... [2022-07-19 22:51:53,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141036d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:51:53, skipping insertion in model container [2022-07-19 22:51:53,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:51:53" (3/3) ... [2022-07-19 22:51:53,793 INFO L111 eAbstractionObserver]: Analyzing ICFG main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i [2022-07-19 22:51:53,809 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 22:51:53,809 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 22:51:53,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 22:51:53,884 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@185e33d3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2b544b62 [2022-07-19 22:51:53,884 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 22:51:53,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 893 states, 640 states have (on average 1.3421875) internal successors, (859), 650 states have internal predecessors, (859), 205 states have call successors, (205), 46 states have call predecessors, (205), 46 states have return successors, (205), 204 states have call predecessors, (205), 205 states have call successors, (205) [2022-07-19 22:51:53,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-19 22:51:53,901 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:51:53,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:51:53,902 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:51:53,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:51:53,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1287876963, now seen corresponding path program 1 times [2022-07-19 22:51:53,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:51:53,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890722562] [2022-07-19 22:51:53,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:51:53,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:51:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:54,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:51:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:54,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 22:51:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:54,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:51:54,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:51:54,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890722562] [2022-07-19 22:51:54,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890722562] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:51:54,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:51:54,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:51:54,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321582517] [2022-07-19 22:51:54,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:51:54,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:51:54,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:51:54,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:51:54,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:51:54,667 INFO L87 Difference]: Start difference. First operand has 893 states, 640 states have (on average 1.3421875) internal successors, (859), 650 states have internal predecessors, (859), 205 states have call successors, (205), 46 states have call predecessors, (205), 46 states have return successors, (205), 204 states have call predecessors, (205), 205 states have call successors, (205) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 22:51:54,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:51:54,865 INFO L93 Difference]: Finished difference Result 2459 states and 3506 transitions. [2022-07-19 22:51:54,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:51:54,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-07-19 22:51:54,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:51:54,913 INFO L225 Difference]: With dead ends: 2459 [2022-07-19 22:51:54,913 INFO L226 Difference]: Without dead ends: 1570 [2022-07-19 22:51:54,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:51:54,931 INFO L413 NwaCegarLoop]: 1360 mSDtfsCounter, 1127 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:51:54,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 2456 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:51:54,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-07-19 22:51:55,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1567. [2022-07-19 22:51:55,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1105 states have (on average 1.306787330316742) internal successors, (1444), 1117 states have internal predecessors, (1444), 379 states have call successors, (379), 85 states have call predecessors, (379), 82 states have return successors, (375), 371 states have call predecessors, (375), 373 states have call successors, (375) [2022-07-19 22:51:55,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2198 transitions. [2022-07-19 22:51:55,112 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2198 transitions. Word has length 19 [2022-07-19 22:51:55,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:51:55,113 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2198 transitions. [2022-07-19 22:51:55,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 22:51:55,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2198 transitions. [2022-07-19 22:51:55,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-19 22:51:55,130 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:51:55,131 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-19 22:51:55,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 22:51:55,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:51:55,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:51:55,141 INFO L85 PathProgramCache]: Analyzing trace with hash -619409099, now seen corresponding path program 1 times [2022-07-19 22:51:55,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:51:55,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632228813] [2022-07-19 22:51:55,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:51:55,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:51:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:55,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:51:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:55,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 22:51:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:55,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-19 22:51:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:55,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-19 22:51:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:55,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-19 22:51:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:55,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 22:51:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:55,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-19 22:51:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:55,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 22:51:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:55,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-19 22:51:55,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:51:55,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632228813] [2022-07-19 22:51:55,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632228813] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:51:55,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:51:55,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 22:51:55,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038675939] [2022-07-19 22:51:55,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:51:55,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:51:55,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:51:55,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:51:55,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:51:55,585 INFO L87 Difference]: Start difference. First operand 1567 states and 2198 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-19 22:51:55,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:51:55,689 INFO L93 Difference]: Finished difference Result 3093 states and 4339 transitions. [2022-07-19 22:51:55,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 22:51:55,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2022-07-19 22:51:55,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:51:55,700 INFO L225 Difference]: With dead ends: 3093 [2022-07-19 22:51:55,700 INFO L226 Difference]: Without dead ends: 1567 [2022-07-19 22:51:55,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:51:55,709 INFO L413 NwaCegarLoop]: 1156 mSDtfsCounter, 1 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3462 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:51:55,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3462 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:51:55,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2022-07-19 22:51:55,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1567. [2022-07-19 22:51:55,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1105 states have (on average 1.3058823529411765) internal successors, (1443), 1117 states have internal predecessors, (1443), 379 states have call successors, (379), 85 states have call predecessors, (379), 82 states have return successors, (375), 371 states have call predecessors, (375), 373 states have call successors, (375) [2022-07-19 22:51:55,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2197 transitions. [2022-07-19 22:51:55,780 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2197 transitions. Word has length 63 [2022-07-19 22:51:55,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:51:55,781 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2197 transitions. [2022-07-19 22:51:55,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-19 22:51:55,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2197 transitions. [2022-07-19 22:51:55,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-19 22:51:55,786 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:51:55,786 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-19 22:51:55,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 22:51:55,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:51:55,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:51:55,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1833716892, now seen corresponding path program 1 times [2022-07-19 22:51:55,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:51:55,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634526815] [2022-07-19 22:51:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:51:55,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:51:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:56,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:51:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:56,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 22:51:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:56,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 22:51:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:56,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-19 22:51:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:56,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-19 22:51:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:56,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 22:51:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:56,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 22:51:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:56,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 22:51:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:51:56,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-19 22:51:56,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:51:56,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634526815] [2022-07-19 22:51:56,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634526815] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:51:56,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:51:56,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 22:51:56,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878965019] [2022-07-19 22:51:56,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:51:56,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 22:51:56,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:51:56,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 22:51:56,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:51:56,137 INFO L87 Difference]: Start difference. First operand 1567 states and 2197 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-19 22:51:56,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:51:56,275 INFO L93 Difference]: Finished difference Result 3093 states and 4338 transitions. [2022-07-19 22:51:56,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 22:51:56,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2022-07-19 22:51:56,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:51:56,286 INFO L225 Difference]: With dead ends: 3093 [2022-07-19 22:51:56,287 INFO L226 Difference]: Without dead ends: 1555 [2022-07-19 22:51:56,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 22:51:56,295 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 9 mSDsluCounter, 3441 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4595 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:51:56,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4595 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:51:56,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2022-07-19 22:51:56,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1555. [2022-07-19 22:51:56,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1097 states have (on average 1.3044667274384685) internal successors, (1431), 1108 states have internal predecessors, (1431), 376 states have call successors, (376), 84 states have call predecessors, (376), 81 states have return successors, (372), 368 states have call predecessors, (372), 370 states have call successors, (372) [2022-07-19 22:51:56,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2179 transitions. [2022-07-19 22:51:56,368 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2179 transitions. Word has length 67 [2022-07-19 22:51:56,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:51:56,368 INFO L495 AbstractCegarLoop]: Abstraction has 1555 states and 2179 transitions. [2022-07-19 22:51:56,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-19 22:51:56,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2179 transitions. [2022-07-19 22:51:56,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 22:51:56,373 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:51:56,373 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-19 22:51:56,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 22:51:56,374 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:51:56,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:51:56,374 INFO L85 PathProgramCache]: Analyzing trace with hash 688026883, now seen corresponding path program 1 times [2022-07-19 22:51:56,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:51:56,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139592897] [2022-07-19 22:51:56,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:51:56,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:51:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 22:51:56,928 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 22:51:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 22:51:57,414 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 22:51:57,414 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 22:51:57,415 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 22:51:57,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 22:51:57,420 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-19 22:51:57,423 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 22:51:57,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:51:57 BoogieIcfgContainer [2022-07-19 22:51:57,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 22:51:57,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 22:51:57,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 22:51:57,530 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 22:51:57,531 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:51:53" (3/4) ... [2022-07-19 22:51:57,534 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 22:51:57,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 22:51:57,535 INFO L158 Benchmark]: Toolchain (without parser) took 9750.56ms. Allocated memory was 92.3MB in the beginning and 383.8MB in the end (delta: 291.5MB). Free memory was 53.1MB in the beginning and 221.0MB in the end (delta: -167.9MB). Peak memory consumption was 123.7MB. Max. memory is 16.1GB. [2022-07-19 22:51:57,536 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory was 48.3MB in the beginning and 48.3MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 22:51:57,537 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2547.03ms. Allocated memory was 92.3MB in the beginning and 176.2MB in the end (delta: 83.9MB). Free memory was 52.8MB in the beginning and 86.8MB in the end (delta: -34.0MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2022-07-19 22:51:57,537 INFO L158 Benchmark]: Boogie Procedure Inliner took 212.46ms. Allocated memory is still 176.2MB. Free memory was 86.8MB in the beginning and 107.7MB in the end (delta: -20.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-19 22:51:57,538 INFO L158 Benchmark]: Boogie Preprocessor took 143.33ms. Allocated memory is still 176.2MB. Free memory was 107.7MB in the beginning and 90.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-19 22:51:57,538 INFO L158 Benchmark]: RCFGBuilder took 3087.98ms. Allocated memory was 176.2MB in the beginning and 295.7MB in the end (delta: 119.5MB). Free memory was 90.9MB in the beginning and 124.7MB in the end (delta: -33.8MB). Peak memory consumption was 89.8MB. Max. memory is 16.1GB. [2022-07-19 22:51:57,538 INFO L158 Benchmark]: TraceAbstraction took 3745.92ms. Allocated memory was 295.7MB in the beginning and 383.8MB in the end (delta: 88.1MB). Free memory was 124.7MB in the beginning and 221.0MB in the end (delta: -96.2MB). Peak memory consumption was 112.4MB. Max. memory is 16.1GB. [2022-07-19 22:51:57,539 INFO L158 Benchmark]: Witness Printer took 4.07ms. Allocated memory is still 383.8MB. Free memory is still 221.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 22:51:57,544 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory was 48.3MB in the beginning and 48.3MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2547.03ms. Allocated memory was 92.3MB in the beginning and 176.2MB in the end (delta: 83.9MB). Free memory was 52.8MB in the beginning and 86.8MB in the end (delta: -34.0MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 212.46ms. Allocated memory is still 176.2MB. Free memory was 86.8MB in the beginning and 107.7MB in the end (delta: -20.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 143.33ms. Allocated memory is still 176.2MB. Free memory was 107.7MB in the beginning and 90.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 3087.98ms. Allocated memory was 176.2MB in the beginning and 295.7MB in the end (delta: 119.5MB). Free memory was 90.9MB in the beginning and 124.7MB in the end (delta: -33.8MB). Peak memory consumption was 89.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3745.92ms. Allocated memory was 295.7MB in the beginning and 383.8MB in the end (delta: 88.1MB). Free memory was 124.7MB in the beginning and 221.0MB in the end (delta: -96.2MB). Peak memory consumption was 112.4MB. Max. memory is 16.1GB. * Witness Printer took 4.07ms. Allocated memory is still 383.8MB. Free memory is still 221.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 8157]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6448, overapproximation of bitwiseAnd at line 7146. Possible FailurePath: [L4883-L4884] static struct device_attribute dev_attr_status = {{"status", 292U, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, & show_status, 0}; [L4978-L4979] static struct device_attribute dev_attr_detach = {{"detach", 128U, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, 0, & store_detach}; [L5100-L5101] static struct device_attribute dev_attr_attach = {{"attach", 128U, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, 0, & store_attach}; [L5102-L5103] static struct attribute *dev_attrs[5U] = { & dev_attr_status.attr, & dev_attr_detach.attr, & dev_attr_attach.attr, & dev_attr_usbip_debug.attr, 0}; [L5104] struct attribute_group dev_attr_group = {0, 0, (struct attribute **)(& dev_attrs)}; [L5108] int LDV_IN_INTERRUPT ; [L6410] struct vhci_hcd *the_controller ; [L6434-L6437] static char const driver_name[9U] = { 'v', 'h', 'c', 'i', '_', 'h', 'c', 'd', '\000'}; [L6438-L6446] static char const driver_desc[31U] = { 'U', 'S', 'B', '/', 'I', 'P', ' ', 'V', 'i', 'r', 't', 'u', 'a', 'l', ' ', 'H', 'o', 's', 't', ' ', 'C', 'o', 'n', 't', 'r', 'o', 'l', 'l', 'e', 'r', '\000'}; [L6447-L6455] static char const *bit_desc[32U] = { "CONNECTION", "ENABLE", "SUSPEND", "OVER_CURRENT", "RESET", "R5", "R6", "R7", "POWER", "LOWSPEED", "HIGHSPEED", "PORT_TEST", "INDICATOR", "R13", "R14", "R15", "C_CONNECTION", "C_ENABLE", "C_SUSPEND", "C_OVER_CURRENT", "C_RESET", "R21", "R22", "R23", "R24", "R25", "R26", "R27", "R28", "R29", "R30", "R31"}; [L7632-L7636] static struct hc_driver vhci_hc_driver = {(char const *)(& driver_name), (char const *)(& driver_desc), 6664UL, 0, 32, 0, & vhci_start, 0, 0, & vhci_stop, 0, & vhci_get_frame_number, & vhci_urb_enqueue, & vhci_urb_dequeue, 0, 0, & vhci_hub_status, & vhci_hub_control, & vhci_bus_suspend, & vhci_bus_resume, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L7792-L7794] static struct platform_driver vhci_driver = {& vhci_hcd_probe, & vhci_hcd_remove, 0, & vhci_hcd_suspend, & vhci_hcd_resume, {(char const *)(& driver_name), 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}; [L7801-L7857] static struct platform_device the_pdev = {(char const *)(& driver_name), -1, {0, 0, {0, {0, 0}, 0, 0, 0, 0, {{0}}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}, 0, 0, {{0}, {{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, 0, 0, 0, {0, {0, 0}, 0, 0, 0UL}}, 0, 0, 0, {{0}, (unsigned char)0, (unsigned char)0, 0, {{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, {0U, {{{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}}, 0, {{0, 0}, 0UL, 0, 0, 0UL, 0, 0, {(char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0}, 0, {0, {0, 0}, 0, 0, 0UL}}, 0UL, {{0L}, {0, 0}, 0, {0, {0, 0}, 0, 0, 0UL}}, {{{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, {0}, {0}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0, 0, 0, 0, 0UL, 0UL, 0UL, 0UL}, 0, 0, 0ULL, 0, {0, 0}, 0, {0, 0, 0}, 0U, {{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, {0, {0, 0}, {{0}}}, 0, 0, & the_pdev_release}, 0U, 0, 0, {}}; [L8202] int ldv_usb_dev_state = 0; VAL [__this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7974] struct usb_hcd *var_group1 ; [L7975] struct urb *var_group2 ; [L7976] gfp_t var_vhci_urb_enqueue_8_p2 ; [L7977] int var_vhci_urb_dequeue_9_p2 ; [L7978] char *var_vhci_hub_status_3_p1 ; [L7979] u16 var_vhci_hub_control_5_p1 ; [L7980] u16 var_vhci_hub_control_5_p2 ; [L7981] u16 var_vhci_hub_control_5_p3 ; [L7982] char *var_vhci_hub_control_5_p4 ; [L7983] u16 var_vhci_hub_control_5_p5 ; [L7984] struct platform_device *var_group3 ; [L7985] int res_vhci_hcd_probe_20 ; [L7986] pm_message_t var_vhci_hcd_suspend_22_p1 ; [L7987] struct device *var_group4 ; [L7988] int ldv_s_vhci_driver_platform_driver ; [L7989] int ldv_s_the_pdev_platform_device ; [L7990] int tmp ; [L7991] int tmp___0 ; [L7992] int tmp___1 ; [L7994] ldv_s_vhci_driver_platform_driver = 0 [L7995] ldv_s_the_pdev_platform_device = 0 [L7996] LDV_IN_INTERRUPT = 1 VAL [__this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_s_the_pdev_platform_device=0, ldv_s_vhci_driver_platform_driver=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, var_vhci_hcd_suspend_22_p1={376:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7997] FCALL ldv_initialize() VAL [__this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_s_the_pdev_platform_device=0, ldv_s_vhci_driver_platform_driver=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, var_vhci_hcd_suspend_22_p1={376:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7998] FCALL ldv_handler_precall() VAL [__this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_s_the_pdev_platform_device=0, ldv_s_vhci_driver_platform_driver=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, var_vhci_hcd_suspend_22_p1={376:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7999] CALL, EXPR vhci_init() [L7860] int ret ; [L7861] struct task_struct *tmp___0 ; [L7862] char *tmp___1 ; [L7863] struct thread_info *tmp___2 ; [L7864] int tmp___3 ; [L7865] struct task_struct *tmp___5 ; [L7866] char *tmp___6 ; [L7867] struct thread_info *tmp___7 ; [L7868] struct task_struct *tmp___9 ; [L7869] char *tmp___10 ; [L7870] struct thread_info *tmp___11 ; VAL [__this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7872] COND FALSE !((usbip_debug_flag & 512UL) != 0UL) VAL [__this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7884] CALL, EXPR usb_disabled() [L8396] return __VERIFIER_nondet_int(); [L7884] RET, EXPR usb_disabled() [L7884] tmp___3 = usb_disabled() [L7885] COND FALSE !(tmp___3 != 0) [L7890] CALL, EXPR platform_driver_register(& vhci_driver) [L8359] return __VERIFIER_nondet_int(); [L7890] RET, EXPR platform_driver_register(& vhci_driver) [L7890] ret = platform_driver_register(& vhci_driver) [L7891] COND FALSE !(ret < 0) [L7895] CALL, EXPR platform_device_register(& the_pdev) [L8352] return __VERIFIER_nondet_int(); [L7895] RET, EXPR platform_device_register(& the_pdev) [L7895] ret = platform_device_register(& the_pdev) [L7896] COND FALSE !(ret < 0) VAL [__this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7900] COND FALSE !((usbip_debug_flag & 512UL) != 0UL) VAL [__this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7912] return (ret); VAL [\result=0, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7999] RET, EXPR vhci_init() [L7999] tmp = vhci_init() [L8000] COND FALSE !(tmp != 0) VAL [__this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_s_the_pdev_platform_device=0, ldv_s_vhci_driver_platform_driver=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, tmp=0, usbip_debug_flag=4294967304, var_vhci_hcd_suspend_22_p1={376:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8095] tmp___1 = __VERIFIER_nondet_int() [L8096] COND TRUE (tmp___1 != 0 || ldv_s_vhci_driver_platform_driver != 0) || ldv_s_the_pdev_platform_device != 0 VAL [__this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_s_the_pdev_platform_device=0, ldv_s_vhci_driver_platform_driver=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, tmp=0, tmp___1=-2, usbip_debug_flag=4294967304, var_vhci_hcd_suspend_22_p1={376:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8006] tmp___0 = __VERIFIER_nondet_int() [L8008] case 0: [L8012] case 1: [L8016] case 2: VAL [__this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_s_the_pdev_platform_device=0, ldv_s_vhci_driver_platform_driver=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, tmp=0, tmp___0=2, tmp___1=-2, usbip_debug_flag=4294967304, var_vhci_hcd_suspend_22_p1={376:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8017] FCALL ldv_handler_precall() VAL [__this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_s_the_pdev_platform_device=0, ldv_s_vhci_driver_platform_driver=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, tmp=0, tmp___0=2, tmp___1=-2, usbip_debug_flag=4294967304, var_vhci_hcd_suspend_22_p1={376:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8018] CALL vhci_urb_enqueue(var_group1, var_group2, var_vhci_urb_enqueue_8_p2) [L7087] struct device *dev ; [L7088] int ret ; [L7089] unsigned long flags ; [L7090] struct task_struct *tmp___0 ; [L7091] char *tmp___1 ; [L7092] struct thread_info *tmp___2 ; [L7093] long tmp___3 ; [L7094] long tmp___4 ; [L7095] raw_spinlock_t *tmp___5 ; [L7096] __u8 type ; [L7097] struct usb_ctrlrequest *ctrlreq ; [L7098] struct vhci_device *vdev ; [L7099] struct vhci_device *tmp___6 ; [L7100] struct task_struct *tmp___8 ; [L7101] char *tmp___9 ; [L7102] struct thread_info *tmp___10 ; [L7103] struct usb_hcd *tmp___11 ; [L7105] EXPR urb->dev [L7105] dev = & (urb->dev)->dev [L7106] ret = 0 VAL [\old(mem_flags)=4, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev={4294967303:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, hcd={4294967299:4294967301}, hcd={4294967299:4294967301}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=4, ret=0, the_controller={0:0}, the_pdev={375:0}, urb={4294967308:0}, urb={4294967308:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7107] COND FALSE !((usbip_debug_flag & 512UL) != 0UL) VAL [\old(mem_flags)=4, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev={4294967303:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, hcd={4294967299:4294967301}, hcd={4294967299:4294967301}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=4, ret=0, the_controller={0:0}, the_pdev={375:0}, urb={4294967308:0}, urb={4294967308:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7120] EXPR urb->transfer_buffer VAL [\old(mem_flags)=4, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev={4294967303:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, hcd={4294967299:4294967301}, hcd={4294967299:4294967301}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=4, ret=0, the_controller={0:0}, the_pdev={375:0}, urb={4294967308:0}, urb={4294967308:0}, urb->transfer_buffer={377:-376}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7120-L7121] CALL, EXPR ldv__builtin_expect((unsigned long )urb->transfer_buffer == (unsigned long )((void *)0), 0L) VAL [\old(c)=0, \old(exp)=0, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8163] return (exp); VAL [\old(c)=0, \old(exp)=0, \result=0, __this_module={4294967298:4294967306}, bit_desc={372:0}, c=0, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, exp=0, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7120-L7121] RET, EXPR ldv__builtin_expect((unsigned long )urb->transfer_buffer == (unsigned long )((void *)0), 0L) VAL [\old(mem_flags)=4, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev={4294967303:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, hcd={4294967299:4294967301}, hcd={4294967299:4294967301}, ldv__builtin_expect((unsigned long )urb->transfer_buffer == (unsigned long )((void *)0), 0L)=0, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=4, ret=0, the_controller={0:0}, the_pdev={375:0}, urb={4294967308:0}, urb={4294967308:0}, urb->transfer_buffer={377:-376}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7120-L7121] tmp___3 = ldv__builtin_expect((unsigned long )urb->transfer_buffer == (unsigned long )((void *)0), 0L) [L7122] COND FALSE !(tmp___3 != 0L) VAL [\old(mem_flags)=4, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev={4294967303:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, hcd={4294967299:4294967301}, hcd={4294967299:4294967301}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=4, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, urb={4294967308:0}, urb={4294967308:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7133] CALL, EXPR spinlock_check(& the_controller->lock) VAL [__this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, lock={0:0}, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L5188] return (& lock->ldv_5812.rlock); VAL [\result={0:0}, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, lock={0:0}, lock={0:0}, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7133] RET, EXPR spinlock_check(& the_controller->lock) VAL [\old(mem_flags)=4, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev={4294967303:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, hcd={4294967299:4294967301}, hcd={4294967299:4294967301}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=4, ret=0, spinlock_check(& the_controller->lock)={0:0}, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, urb={4294967308:0}, urb={4294967308:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7133] tmp___5 = spinlock_check(& the_controller->lock) [L7134] CALL, EXPR _raw_spin_lock_irqsave(tmp___5) VAL [__this_module={4294967298:4294967306}, arg0={0:0}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8294] return __VERIFIER_nondet_ulong(); [L7134] RET, EXPR _raw_spin_lock_irqsave(tmp___5) VAL [\old(mem_flags)=4, __this_module={4294967298:4294967306}, _raw_spin_lock_irqsave(tmp___5)=4294967305, bit_desc={372:0}, dev={4294967303:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, hcd={4294967299:4294967301}, hcd={4294967299:4294967301}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=4, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, tmp___5={0:0}, urb={4294967308:0}, urb={4294967308:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7134] flags = _raw_spin_lock_irqsave(tmp___5) [L7135] EXPR urb->status VAL [\old(mem_flags)=4, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev={4294967303:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, flags=4294967305, hcd={4294967299:4294967301}, hcd={4294967299:4294967301}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=4, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, tmp___5={0:0}, urb={4294967308:0}, urb={4294967308:0}, urb->status=-115, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7135] COND FALSE !(urb->status != -115) [L7141] CALL, EXPR usb_hcd_link_urb_to_ep(hcd, urb) [L8410] return __VERIFIER_nondet_int(); [L7141] RET, EXPR usb_hcd_link_urb_to_ep(hcd, urb) [L7141] ret = usb_hcd_link_urb_to_ep(hcd, urb) [L7142] COND FALSE !(ret != 0) [L7146] EXPR urb->pipe VAL [\old(mem_flags)=4, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev={4294967303:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, flags=4294967305, hcd={4294967299:4294967301}, hcd={4294967299:4294967301}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=4, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, tmp___5={0:0}, urb={4294967308:0}, urb={4294967308:0}, urb->pipe=-271656681473, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7146] COND TRUE ((urb->pipe >> 8) & 127U) == 0U [L7147] EXPR urb->pipe [L7147] type = (__u8 )(urb->pipe >> 30) [L7148] EXPR urb->setup_packet [L7148] ctrlreq = (struct usb_ctrlrequest *)urb->setup_packet [L7149] EXPR the_controller->pending_port VAL [\old(mem_flags)=4, __this_module={4294967298:4294967306}, bit_desc={372:0}, ctrlreq={380:-379}, dev={4294967303:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, flags=4294967305, hcd={4294967299:4294967301}, hcd={4294967299:4294967301}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=4, ret=0, the_controller={0:0}, the_controller->pending_port=4294967297, the_pdev={375:0}, tmp___3=0, tmp___5={0:0}, type=2, urb={4294967308:0}, urb={4294967308:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7149] CALL, EXPR port_to_vdev((__u32 )the_controller->pending_port) VAL [\old(port)=1, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L4809] return ((struct vhci_device *)(& the_controller->vdev) + (unsigned long )port); VAL [\old(port)=1, \result={0:853}, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, port=1, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7149] RET, EXPR port_to_vdev((__u32 )the_controller->pending_port) VAL [\old(mem_flags)=4, __this_module={4294967298:4294967306}, bit_desc={372:0}, ctrlreq={380:-379}, dev={4294967303:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, flags=4294967305, hcd={4294967299:4294967301}, hcd={4294967299:4294967301}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=4, port_to_vdev((__u32 )the_controller->pending_port)={0:853}, ret=0, the_controller={0:0}, the_controller->pending_port=4294967297, the_pdev={375:0}, tmp___3=0, tmp___5={0:0}, type=2, urb={4294967308:0}, urb={4294967308:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7149] tmp___6 = port_to_vdev((__u32 )the_controller->pending_port) [L7150] vdev = tmp___6 VAL [\old(mem_flags)=4, __this_module={4294967298:4294967306}, bit_desc={372:0}, ctrlreq={380:-379}, dev={4294967303:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, flags=4294967305, hcd={4294967299:4294967301}, hcd={4294967299:4294967301}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=4, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, tmp___5={0:0}, tmp___6={0:853}, type=2, urb={4294967308:0}, urb={4294967308:0}, usbip_debug_flag=4294967304, vdev={0:853}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7151] COND FALSE !((unsigned int )type != 2U || (unsigned long )ctrlreq == (unsigned long )((struct usb_ctrlrequest *)0)) [L7157] ctrlreq->bRequest [L7158] case 5: [L7160] ctrlreq->wValue [L7160] vdev->rhport [L7161] EXPR vdev->udev VAL [\old(mem_flags)=4, __this_module={4294967298:4294967306}, bit_desc={372:0}, ctrlreq={380:-379}, ctrlreq->bRequest=-251, dev={4294967303:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, flags=4294967305, hcd={4294967299:4294967301}, hcd={4294967299:4294967301}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=4, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, tmp___5={0:0}, tmp___6={0:853}, type=2, urb={4294967308:0}, urb={4294967308:0}, usbip_debug_flag=4294967304, vdev={0:853}, vdev->udev={-377:378}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7161] COND TRUE (unsigned long )vdev->udev != (unsigned long )((struct usb_device *)0) [L7162] EXPR vdev->udev [L7162] CALL ldv_usb_put_dev_21(vdev->udev) [L8111] FCALL usb_put_dev(ldv_func_arg1) VAL [__this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, ldv_func_arg1={-377:378}, ldv_func_arg1={-377:378}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8112] CALL ldv_usb_put_dev() VAL [\old(ldv_usb_dev_state)=0, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8227] COND FALSE !(ldv_usb_dev_state >= 2) VAL [\old(ldv_usb_dev_state)=0, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8229] CALL ldv_error() VAL [\old(ldv_usb_dev_state)=0, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8157] reach_error() VAL [\old(ldv_usb_dev_state)=0, __this_module={4294967298:4294967306}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={4294967307:4294967302}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=4294967304, vhci_driver={374:0}, vhci_hc_driver={373:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 893 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1140 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1137 mSDsluCounter, 10513 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6843 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 3670 mSDtfsCounter, 40 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1567occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 194 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-19 22:51:57,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 87ebe4cbc19149709e03f5df167fc3a270d2a12f873f1a9ed2e481b56a29b864 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 22:51:59,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 22:51:59,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 22:51:59,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 22:51:59,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 22:51:59,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 22:51:59,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 22:51:59,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 22:51:59,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 22:51:59,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 22:51:59,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 22:51:59,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 22:51:59,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 22:51:59,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 22:51:59,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 22:51:59,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 22:51:59,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 22:51:59,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 22:51:59,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 22:51:59,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 22:51:59,944 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 22:51:59,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 22:51:59,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 22:51:59,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 22:51:59,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 22:51:59,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 22:51:59,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 22:51:59,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 22:51:59,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 22:51:59,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 22:51:59,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 22:51:59,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 22:51:59,964 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 22:51:59,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 22:51:59,966 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 22:51:59,967 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 22:51:59,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 22:51:59,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 22:51:59,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 22:51:59,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 22:51:59,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 22:51:59,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 22:51:59,981 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-19 22:52:00,028 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 22:52:00,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 22:52:00,030 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 22:52:00,030 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 22:52:00,031 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 22:52:00,031 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 22:52:00,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 22:52:00,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 22:52:00,033 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 22:52:00,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 22:52:00,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 22:52:00,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 22:52:00,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 22:52:00,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 22:52:00,035 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 22:52:00,035 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 22:52:00,036 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 22:52:00,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 22:52:00,036 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 22:52:00,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 22:52:00,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 22:52:00,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 22:52:00,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 22:52:00,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:52:00,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 22:52:00,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 22:52:00,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 22:52:00,038 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 22:52:00,039 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 22:52:00,039 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 22:52:00,039 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 22:52:00,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 22:52:00,040 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 22:52:00,040 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87ebe4cbc19149709e03f5df167fc3a270d2a12f873f1a9ed2e481b56a29b864 [2022-07-19 22:52:00,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 22:52:00,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 22:52:00,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 22:52:00,449 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 22:52:00,450 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 22:52:00,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i [2022-07-19 22:52:00,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b6edb226/40cd62133d16493ba545bf268b42b6df/FLAGb7cd1a9ab [2022-07-19 22:52:01,366 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 22:52:01,366 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i [2022-07-19 22:52:01,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b6edb226/40cd62133d16493ba545bf268b42b6df/FLAGb7cd1a9ab [2022-07-19 22:52:01,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b6edb226/40cd62133d16493ba545bf268b42b6df [2022-07-19 22:52:01,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 22:52:01,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 22:52:01,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 22:52:01,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 22:52:01,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 22:52:01,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:52:01" (1/1) ... [2022-07-19 22:52:01,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@597ac5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:01, skipping insertion in model container [2022-07-19 22:52:01,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:52:01" (1/1) ... [2022-07-19 22:52:01,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 22:52:02,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 22:52:03,714 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-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i[260799,260812] [2022-07-19 22:52:03,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:52:03,794 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-19 22:52:03,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 22:52:04,103 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-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i[260799,260812] [2022-07-19 22:52:04,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:52:04,121 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 22:52:04,403 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-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i[260799,260812] [2022-07-19 22:52:04,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:52:04,491 INFO L208 MainTranslator]: Completed translation [2022-07-19 22:52:04,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:04 WrapperNode [2022-07-19 22:52:04,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 22:52:04,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 22:52:04,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 22:52:04,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 22:52:04,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:04" (1/1) ... [2022-07-19 22:52:04,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:04" (1/1) ... [2022-07-19 22:52:04,695 INFO L137 Inliner]: procedures = 218, calls = 1862, calls flagged for inlining = 100, calls inlined = 66, statements flattened = 2985 [2022-07-19 22:52:04,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 22:52:04,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 22:52:04,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 22:52:04,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 22:52:04,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:04" (1/1) ... [2022-07-19 22:52:04,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:04" (1/1) ... [2022-07-19 22:52:04,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:04" (1/1) ... [2022-07-19 22:52:04,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:04" (1/1) ... [2022-07-19 22:52:04,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:04" (1/1) ... [2022-07-19 22:52:04,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:04" (1/1) ... [2022-07-19 22:52:04,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:04" (1/1) ... [2022-07-19 22:52:04,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 22:52:04,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 22:52:04,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 22:52:04,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 22:52:04,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:04" (1/1) ... [2022-07-19 22:52:04,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:52:04,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:52:04,881 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) [2022-07-19 22:52:04,904 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 [2022-07-19 22:52:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-19 22:52:04,926 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-07-19 22:52:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-07-19 22:52:04,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-19 22:52:04,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-19 22:52:04,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-19 22:52:04,926 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-07-19 22:52:04,927 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-07-19 22:52:04,927 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2022-07-19 22:52:04,927 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2022-07-19 22:52:04,927 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-19 22:52:04,927 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-19 22:52:04,927 INFO L130 BoogieDeclarations]: Found specification of procedure vhci_to_hcd [2022-07-19 22:52:04,927 INFO L138 BoogieDeclarations]: Found implementation of procedure vhci_to_hcd [2022-07-19 22:52:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 22:52:04,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 22:52:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 22:52:04,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 22:52:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-19 22:52:04,928 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-19 22:52:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-19 22:52:04,928 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-19 22:52:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_giveback_urb [2022-07-19 22:52:04,929 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_giveback_urb [2022-07-19 22:52:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 22:52:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-19 22:52:04,929 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-19 22:52:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 22:52:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-19 22:52:04,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-19 22:52:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-19 22:52:04,930 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-19 22:52:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-19 22:52:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-19 22:52:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-19 22:52:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 22:52:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-19 22:52:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 22:52:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-07-19 22:52:04,958 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-07-19 22:52:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure usbip_event_add [2022-07-19 22:52:04,959 INFO L138 BoogieDeclarations]: Found implementation of procedure usbip_event_add [2022-07-19 22:52:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 22:52:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-19 22:52:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-19 22:52:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-19 22:52:04,959 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-19 22:52:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-19 22:52:04,959 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-19 22:52:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-19 22:52:04,959 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-19 22:52:04,960 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-19 22:52:04,960 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-19 22:52:04,960 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-07-19 22:52:04,960 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-07-19 22:52:04,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-19 22:52:04,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-19 22:52:04,960 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-19 22:52:04,960 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-19 22:52:04,960 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-19 22:52:04,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-19 22:52:04,960 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-07-19 22:52:04,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-07-19 22:52:04,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2022-07-19 22:52:04,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2022-07-19 22:52:04,961 INFO L130 BoogieDeclarations]: Found specification of procedure dump_port_status [2022-07-19 22:52:04,961 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_port_status [2022-07-19 22:52:04,961 INFO L130 BoogieDeclarations]: Found specification of procedure port_to_vdev [2022-07-19 22:52:04,961 INFO L138 BoogieDeclarations]: Found implementation of procedure port_to_vdev [2022-07-19 22:52:04,961 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-19 22:52:04,961 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-19 22:52:04,961 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-19 22:52:04,961 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-19 22:52:04,962 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-19 22:52:04,962 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-19 22:52:04,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 22:52:04,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 22:52:04,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev [2022-07-19 22:52:04,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev [2022-07-19 22:52:04,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 22:52:04,962 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2022-07-19 22:52:04,962 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2022-07-19 22:52:04,962 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-07-19 22:52:04,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 22:52:04,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 22:52:04,963 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-19 22:52:04,963 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-19 22:52:04,963 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-19 22:52:04,963 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-19 22:52:04,963 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-19 22:52:04,963 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-07-19 22:52:04,963 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-07-19 22:52:04,963 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-19 22:52:04,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-19 22:52:04,963 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_vhci [2022-07-19 22:52:04,963 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_vhci [2022-07-19 22:52:04,964 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-07-19 22:52:04,964 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-07-19 22:52:04,966 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-19 22:52:04,966 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-19 22:52:04,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev [2022-07-19 22:52:04,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev [2022-07-19 22:52:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure vhci_dev [2022-07-19 22:52:04,967 INFO L138 BoogieDeclarations]: Found implementation of procedure vhci_dev [2022-07-19 22:52:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-19 22:52:04,967 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-19 22:52:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-19 22:52:04,968 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-19 22:52:04,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-19 22:52:04,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-19 22:52:04,968 INFO L130 BoogieDeclarations]: Found specification of procedure usbip_task_init [2022-07-19 22:52:04,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usbip_task_init [2022-07-19 22:52:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 22:52:04,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 22:52:05,505 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 22:52:05,508 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 22:52:17,466 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 22:52:17,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 22:52:17,480 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 22:52:17,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:52:17 BoogieIcfgContainer [2022-07-19 22:52:17,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 22:52:17,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 22:52:17,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 22:52:17,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 22:52:17,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:52:01" (1/3) ... [2022-07-19 22:52:17,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147eead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:52:17, skipping insertion in model container [2022-07-19 22:52:17,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:52:04" (2/3) ... [2022-07-19 22:52:17,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147eead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:52:17, skipping insertion in model container [2022-07-19 22:52:17,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:52:17" (3/3) ... [2022-07-19 22:52:17,491 INFO L111 eAbstractionObserver]: Analyzing ICFG main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i [2022-07-19 22:52:17,504 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 22:52:17,504 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 22:52:17,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 22:52:17,569 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5df73c3e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7964c775 [2022-07-19 22:52:17,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 22:52:17,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 893 states, 640 states have (on average 1.3421875) internal successors, (859), 650 states have internal predecessors, (859), 205 states have call successors, (205), 46 states have call predecessors, (205), 46 states have return successors, (205), 204 states have call predecessors, (205), 205 states have call successors, (205) [2022-07-19 22:52:17,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-19 22:52:17,584 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:52:17,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:52:17,585 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:52:17,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:52:17,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1287876963, now seen corresponding path program 1 times [2022-07-19 22:52:17,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:52:17,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365164178] [2022-07-19 22:52:17,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:52:17,605 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:52:17,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:52:17,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:52:17,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 22:52:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:52:18,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 1795 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 22:52:18,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:52:18,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:52:18,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:52:18,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:52:18,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365164178] [2022-07-19 22:52:18,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365164178] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:52:18,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:52:18,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 22:52:18,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643445972] [2022-07-19 22:52:18,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:52:18,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:52:18,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:52:18,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:52:18,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:52:18,733 INFO L87 Difference]: Start difference. First operand has 893 states, 640 states have (on average 1.3421875) internal successors, (859), 650 states have internal predecessors, (859), 205 states have call successors, (205), 46 states have call predecessors, (205), 46 states have return successors, (205), 204 states have call predecessors, (205), 205 states have call successors, (205) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 22:52:18,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:52:18,989 INFO L93 Difference]: Finished difference Result 2459 states and 3506 transitions. [2022-07-19 22:52:18,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:52:18,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-07-19 22:52:18,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:52:19,014 INFO L225 Difference]: With dead ends: 2459 [2022-07-19 22:52:19,015 INFO L226 Difference]: Without dead ends: 1570 [2022-07-19 22:52:19,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:52:19,028 INFO L413 NwaCegarLoop]: 1360 mSDtfsCounter, 1123 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 22:52:19,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 2456 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 22:52:19,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-07-19 22:52:19,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1567. [2022-07-19 22:52:19,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1105 states have (on average 1.306787330316742) internal successors, (1444), 1117 states have internal predecessors, (1444), 379 states have call successors, (379), 85 states have call predecessors, (379), 82 states have return successors, (375), 371 states have call predecessors, (375), 373 states have call successors, (375) [2022-07-19 22:52:19,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2198 transitions. [2022-07-19 22:52:19,277 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2198 transitions. Word has length 19 [2022-07-19 22:52:19,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:52:19,278 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2198 transitions. [2022-07-19 22:52:19,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 22:52:19,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2198 transitions. [2022-07-19 22:52:19,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-19 22:52:19,293 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:52:19,294 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-19 22:52:19,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 22:52:19,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:52:19,513 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:52:19,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:52:19,513 INFO L85 PathProgramCache]: Analyzing trace with hash -619409099, now seen corresponding path program 1 times [2022-07-19 22:52:19,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:52:19,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303615579] [2022-07-19 22:52:19,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:52:19,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:52:19,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:52:19,520 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:52:19,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 22:52:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:52:20,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 1912 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 22:52:20,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:52:20,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:52:20,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:52:20,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:52:20,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303615579] [2022-07-19 22:52:20,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303615579] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:52:20,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:52:20,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 22:52:20,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109711979] [2022-07-19 22:52:20,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:52:20,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:52:20,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:52:20,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:52:20,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:52:20,634 INFO L87 Difference]: Start difference. First operand 1567 states and 2198 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-19 22:52:20,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:52:20,762 INFO L93 Difference]: Finished difference Result 3093 states and 4339 transitions. [2022-07-19 22:52:20,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 22:52:20,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2022-07-19 22:52:20,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:52:20,778 INFO L225 Difference]: With dead ends: 3093 [2022-07-19 22:52:20,779 INFO L226 Difference]: Without dead ends: 1567 [2022-07-19 22:52:20,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:52:20,787 INFO L413 NwaCegarLoop]: 1156 mSDtfsCounter, 1 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3462 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:52:20,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3462 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:52:20,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2022-07-19 22:52:20,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1567. [2022-07-19 22:52:20,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1105 states have (on average 1.3058823529411765) internal successors, (1443), 1117 states have internal predecessors, (1443), 379 states have call successors, (379), 85 states have call predecessors, (379), 82 states have return successors, (375), 371 states have call predecessors, (375), 373 states have call successors, (375) [2022-07-19 22:52:20,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2197 transitions. [2022-07-19 22:52:20,877 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2197 transitions. Word has length 63 [2022-07-19 22:52:20,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:52:20,877 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2197 transitions. [2022-07-19 22:52:20,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-19 22:52:20,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2197 transitions. [2022-07-19 22:52:20,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-19 22:52:20,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:52:20,886 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-19 22:52:20,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 22:52:21,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:52:21,108 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:52:21,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:52:21,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1833716892, now seen corresponding path program 1 times [2022-07-19 22:52:21,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:52:21,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655095901] [2022-07-19 22:52:21,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:52:21,112 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:52:21,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:52:21,114 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:52:21,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 22:52:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:52:22,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 22:52:22,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:52:22,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:52:22,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:52:22,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:52:22,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655095901] [2022-07-19 22:52:22,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655095901] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:52:22,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:52:22,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 22:52:22,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368225388] [2022-07-19 22:52:22,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:52:22,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 22:52:22,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:52:22,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 22:52:22,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:52:22,194 INFO L87 Difference]: Start difference. First operand 1567 states and 2197 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-19 22:52:22,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:52:22,368 INFO L93 Difference]: Finished difference Result 3093 states and 4338 transitions. [2022-07-19 22:52:22,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 22:52:22,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2022-07-19 22:52:22,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:52:22,378 INFO L225 Difference]: With dead ends: 3093 [2022-07-19 22:52:22,379 INFO L226 Difference]: Without dead ends: 1555 [2022-07-19 22:52:22,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 22:52:22,389 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 9 mSDsluCounter, 3441 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4595 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 22:52:22,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4595 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 22:52:22,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2022-07-19 22:52:22,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1555. [2022-07-19 22:52:22,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1097 states have (on average 1.3044667274384685) internal successors, (1431), 1108 states have internal predecessors, (1431), 376 states have call successors, (376), 84 states have call predecessors, (376), 81 states have return successors, (372), 368 states have call predecessors, (372), 370 states have call successors, (372) [2022-07-19 22:52:22,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2179 transitions. [2022-07-19 22:52:22,459 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2179 transitions. Word has length 67 [2022-07-19 22:52:22,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:52:22,460 INFO L495 AbstractCegarLoop]: Abstraction has 1555 states and 2179 transitions. [2022-07-19 22:52:22,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-19 22:52:22,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2179 transitions. [2022-07-19 22:52:22,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 22:52:22,465 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:52:22,466 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-19 22:52:22,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-19 22:52:22,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:52:22,683 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:52:22,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:52:22,684 INFO L85 PathProgramCache]: Analyzing trace with hash 688026883, now seen corresponding path program 1 times [2022-07-19 22:52:22,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:52:22,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986184186] [2022-07-19 22:52:22,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:52:22,688 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:52:22,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:52:22,689 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:52:22,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 22:52:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 22:52:43,091 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 22:53:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 22:53:06,838 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-19 22:53:06,839 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 22:53:06,840 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 22:53:06,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-19 22:53:07,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:53:07,062 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-19 22:53:07,066 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 22:53:07,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:53:07 BoogieIcfgContainer [2022-07-19 22:53:07,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 22:53:07,229 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 22:53:07,229 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 22:53:07,230 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 22:53:07,230 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:52:17" (3/4) ... [2022-07-19 22:53:07,234 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 22:53:07,234 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 22:53:07,235 INFO L158 Benchmark]: Toolchain (without parser) took 65328.88ms. Allocated memory was 52.4MB in the beginning and 434.1MB in the end (delta: 381.7MB). Free memory was 30.1MB in the beginning and 201.9MB in the end (delta: -171.8MB). Peak memory consumption was 212.0MB. Max. memory is 16.1GB. [2022-07-19 22:53:07,239 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 52.4MB. Free memory was 34.1MB in the beginning and 34.0MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 22:53:07,240 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2584.20ms. Allocated memory was 52.4MB in the beginning and 144.7MB in the end (delta: 92.3MB). Free memory was 29.8MB in the beginning and 52.4MB in the end (delta: -22.5MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. [2022-07-19 22:53:07,240 INFO L158 Benchmark]: Boogie Procedure Inliner took 201.98ms. Allocated memory is still 144.7MB. Free memory was 52.4MB in the beginning and 65.1MB in the end (delta: -12.8MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-07-19 22:53:07,240 INFO L158 Benchmark]: Boogie Preprocessor took 143.59ms. Allocated memory is still 144.7MB. Free memory was 65.1MB in the beginning and 48.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-19 22:53:07,241 INFO L158 Benchmark]: RCFGBuilder took 12641.32ms. Allocated memory was 144.7MB in the beginning and 434.1MB in the end (delta: 289.4MB). Free memory was 48.4MB in the beginning and 287.5MB in the end (delta: -239.1MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. [2022-07-19 22:53:07,241 INFO L158 Benchmark]: TraceAbstraction took 49743.80ms. Allocated memory is still 434.1MB. Free memory was 287.5MB in the beginning and 201.9MB in the end (delta: 85.6MB). Peak memory consumption was 85.6MB. Max. memory is 16.1GB. [2022-07-19 22:53:07,242 INFO L158 Benchmark]: Witness Printer took 4.75ms. Allocated memory is still 434.1MB. Free memory is still 201.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 22:53:07,247 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 52.4MB. Free memory was 34.1MB in the beginning and 34.0MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2584.20ms. Allocated memory was 52.4MB in the beginning and 144.7MB in the end (delta: 92.3MB). Free memory was 29.8MB in the beginning and 52.4MB in the end (delta: -22.5MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 201.98ms. Allocated memory is still 144.7MB. Free memory was 52.4MB in the beginning and 65.1MB in the end (delta: -12.8MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 143.59ms. Allocated memory is still 144.7MB. Free memory was 65.1MB in the beginning and 48.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 12641.32ms. Allocated memory was 144.7MB in the beginning and 434.1MB in the end (delta: 289.4MB). Free memory was 48.4MB in the beginning and 287.5MB in the end (delta: -239.1MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. * TraceAbstraction took 49743.80ms. Allocated memory is still 434.1MB. Free memory was 287.5MB in the beginning and 201.9MB in the end (delta: 85.6MB). Peak memory consumption was 85.6MB. Max. memory is 16.1GB. * Witness Printer took 4.75ms. Allocated memory is still 434.1MB. Free memory is still 201.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 8157]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6448. Possible FailurePath: [L4883-L4884] static struct device_attribute dev_attr_status = {{"status", 292U, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, & show_status, 0}; [L4978-L4979] static struct device_attribute dev_attr_detach = {{"detach", 128U, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, 0, & store_detach}; [L5100-L5101] static struct device_attribute dev_attr_attach = {{"attach", 128U, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, 0, & store_attach}; [L5102-L5103] static struct attribute *dev_attrs[5U] = { & dev_attr_status.attr, & dev_attr_detach.attr, & dev_attr_attach.attr, & dev_attr_usbip_debug.attr, 0}; [L5104] struct attribute_group dev_attr_group = {0, 0, (struct attribute **)(& dev_attrs)}; [L5108] int LDV_IN_INTERRUPT ; [L6410] struct vhci_hcd *the_controller ; [L6434-L6437] static char const driver_name[9U] = { 'v', 'h', 'c', 'i', '_', 'h', 'c', 'd', '\000'}; [L6438-L6446] static char const driver_desc[31U] = { 'U', 'S', 'B', '/', 'I', 'P', ' ', 'V', 'i', 'r', 't', 'u', 'a', 'l', ' ', 'H', 'o', 's', 't', ' ', 'C', 'o', 'n', 't', 'r', 'o', 'l', 'l', 'e', 'r', '\000'}; [L6447-L6455] static char const *bit_desc[32U] = { "CONNECTION", "ENABLE", "SUSPEND", "OVER_CURRENT", "RESET", "R5", "R6", "R7", "POWER", "LOWSPEED", "HIGHSPEED", "PORT_TEST", "INDICATOR", "R13", "R14", "R15", "C_CONNECTION", "C_ENABLE", "C_SUSPEND", "C_OVER_CURRENT", "C_RESET", "R21", "R22", "R23", "R24", "R25", "R26", "R27", "R28", "R29", "R30", "R31"}; [L7632-L7636] static struct hc_driver vhci_hc_driver = {(char const *)(& driver_name), (char const *)(& driver_desc), 6664UL, 0, 32, 0, & vhci_start, 0, 0, & vhci_stop, 0, & vhci_get_frame_number, & vhci_urb_enqueue, & vhci_urb_dequeue, 0, 0, & vhci_hub_status, & vhci_hub_control, & vhci_bus_suspend, & vhci_bus_resume, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L7792-L7794] static struct platform_driver vhci_driver = {& vhci_hcd_probe, & vhci_hcd_remove, 0, & vhci_hcd_suspend, & vhci_hcd_resume, {(char const *)(& driver_name), 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}; [L7801-L7857] static struct platform_device the_pdev = {(char const *)(& driver_name), -1, {0, 0, {0, {0, 0}, 0, 0, 0, 0, {{0}}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}, 0, 0, {{0}, {{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, 0, 0, 0, {0, {0, 0}, 0, 0, 0UL}}, 0, 0, 0, {{0}, (unsigned char)0, (unsigned char)0, 0, {{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, {0U, {{{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}}, 0, {{0, 0}, 0UL, 0, 0, 0UL, 0, 0, {(char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0}, 0, {0, {0, 0}, 0, 0, 0UL}}, 0UL, {{0L}, {0, 0}, 0, {0, {0, 0}, 0, 0, 0UL}}, {{{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, {0}, {0}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0, 0, 0, 0, 0UL, 0UL, 0UL, 0UL}, 0, 0, 0ULL, 0, {0, 0}, 0, {0, 0, 0}, 0U, {{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, {0, {0, 0}, {{0}}}, 0, 0, & the_pdev_release}, 0U, 0, 0, {}}; [L8202] int ldv_usb_dev_state = 0; VAL [__this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7974] struct usb_hcd *var_group1 ; [L7975] struct urb *var_group2 ; [L7976] gfp_t var_vhci_urb_enqueue_8_p2 ; [L7977] int var_vhci_urb_dequeue_9_p2 ; [L7978] char *var_vhci_hub_status_3_p1 ; [L7979] u16 var_vhci_hub_control_5_p1 ; [L7980] u16 var_vhci_hub_control_5_p2 ; [L7981] u16 var_vhci_hub_control_5_p3 ; [L7982] char *var_vhci_hub_control_5_p4 ; [L7983] u16 var_vhci_hub_control_5_p5 ; [L7984] struct platform_device *var_group3 ; [L7985] int res_vhci_hcd_probe_20 ; [L7986] pm_message_t var_vhci_hcd_suspend_22_p1 ; [L7987] struct device *var_group4 ; [L7988] int ldv_s_vhci_driver_platform_driver ; [L7989] int ldv_s_the_pdev_platform_device ; [L7990] int tmp ; [L7991] int tmp___0 ; [L7992] int tmp___1 ; [L7994] ldv_s_vhci_driver_platform_driver = 0 [L7995] ldv_s_the_pdev_platform_device = 0 [L7996] LDV_IN_INTERRUPT = 1 VAL [__this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_s_the_pdev_platform_device=0, ldv_s_vhci_driver_platform_driver=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, var_vhci_hcd_suspend_22_p1={398:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7997] FCALL ldv_initialize() VAL [__this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_s_the_pdev_platform_device=0, ldv_s_vhci_driver_platform_driver=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, var_vhci_hcd_suspend_22_p1={398:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7998] FCALL ldv_handler_precall() VAL [__this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_s_the_pdev_platform_device=0, ldv_s_vhci_driver_platform_driver=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, var_vhci_hcd_suspend_22_p1={398:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7999] CALL, EXPR vhci_init() [L7860] int ret ; [L7861] struct task_struct *tmp___0 ; [L7862] char *tmp___1 ; [L7863] struct thread_info *tmp___2 ; [L7864] int tmp___3 ; [L7865] struct task_struct *tmp___5 ; [L7866] char *tmp___6 ; [L7867] struct thread_info *tmp___7 ; [L7868] struct task_struct *tmp___9 ; [L7869] char *tmp___10 ; [L7870] struct thread_info *tmp___11 ; VAL [__this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7872] COND FALSE !((usbip_debug_flag & 512UL) != 0UL) VAL [__this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7884] CALL, EXPR usb_disabled() [L8396] return __VERIFIER_nondet_int(); [L7884] RET, EXPR usb_disabled() [L7884] tmp___3 = usb_disabled() [L7885] COND FALSE !(tmp___3 != 0) [L7890] CALL, EXPR platform_driver_register(& vhci_driver) [L8359] return __VERIFIER_nondet_int(); [L7890] RET, EXPR platform_driver_register(& vhci_driver) [L7890] ret = platform_driver_register(& vhci_driver) [L7891] COND FALSE !(ret < 0) [L7895] CALL, EXPR platform_device_register(& the_pdev) [L8352] return __VERIFIER_nondet_int(); [L7895] RET, EXPR platform_device_register(& the_pdev) [L7895] ret = platform_device_register(& the_pdev) [L7896] COND FALSE !(ret < 0) VAL [__this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7900] COND FALSE !((usbip_debug_flag & 512UL) != 0UL) VAL [__this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7912] return (ret); VAL [\result=0, __this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7999] RET, EXPR vhci_init() [L7999] tmp = vhci_init() [L8000] COND FALSE !(tmp != 0) VAL [__this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_s_the_pdev_platform_device=0, ldv_s_vhci_driver_platform_driver=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, tmp=0, usbip_debug_flag=0, var_vhci_hcd_suspend_22_p1={398:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8095] tmp___1 = __VERIFIER_nondet_int() [L8096] COND TRUE (tmp___1 != 0 || ldv_s_vhci_driver_platform_driver != 0) || ldv_s_the_pdev_platform_device != 0 VAL [__this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_s_the_pdev_platform_device=0, ldv_s_vhci_driver_platform_driver=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, tmp=0, tmp___1=2147483648, usbip_debug_flag=0, var_vhci_hcd_suspend_22_p1={398:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8006] tmp___0 = __VERIFIER_nondet_int() [L8008] case 0: [L8012] case 1: [L8016] case 2: VAL [__this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_s_the_pdev_platform_device=0, ldv_s_vhci_driver_platform_driver=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, tmp=0, tmp___0=2, tmp___1=2147483648, usbip_debug_flag=0, var_vhci_hcd_suspend_22_p1={398:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8017] FCALL ldv_handler_precall() VAL [__this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_s_the_pdev_platform_device=0, ldv_s_vhci_driver_platform_driver=0, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, tmp=0, tmp___0=2, tmp___1=2147483648, usbip_debug_flag=0, var_vhci_hcd_suspend_22_p1={398:0}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8018] CALL vhci_urb_enqueue(var_group1, var_group2, var_vhci_urb_enqueue_8_p2) [L7087] struct device *dev ; [L7088] int ret ; [L7089] unsigned long flags ; [L7090] struct task_struct *tmp___0 ; [L7091] char *tmp___1 ; [L7092] struct thread_info *tmp___2 ; [L7093] long tmp___3 ; [L7094] long tmp___4 ; [L7095] raw_spinlock_t *tmp___5 ; [L7096] __u8 type ; [L7097] struct usb_ctrlrequest *ctrlreq ; [L7098] struct vhci_device *vdev ; [L7099] struct vhci_device *tmp___6 ; [L7100] struct task_struct *tmp___8 ; [L7101] char *tmp___9 ; [L7102] struct thread_info *tmp___10 ; [L7103] struct usb_hcd *tmp___11 ; [L7105] EXPR urb->dev [L7105] dev = & (urb->dev)->dev [L7106] ret = 0 VAL [\old(mem_flags)=9, __this_module={4398046511104:4096}, bit_desc={372:0}, dev={0:3}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, hcd={393:392}, hcd={393:392}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=9, ret=0, the_controller={0:0}, the_pdev={375:0}, urb={0:-8067547855910338688}, urb={0:-8067547855910338688}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7107] COND FALSE !((usbip_debug_flag & 512UL) != 0UL) VAL [\old(mem_flags)=9, __this_module={4398046511104:4096}, bit_desc={372:0}, dev={0:3}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, hcd={393:392}, hcd={393:392}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=9, ret=0, the_controller={0:0}, the_pdev={375:0}, urb={0:-8067547855910338688}, urb={0:-8067547855910338688}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7120] EXPR urb->transfer_buffer VAL [\old(mem_flags)=9, __this_module={4398046511104:4096}, bit_desc={372:0}, dev={0:3}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, hcd={393:392}, hcd={393:392}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=9, ret=0, the_controller={0:0}, the_pdev={375:0}, urb={0:-8067547855910338688}, urb={0:-8067547855910338688}, urb->transfer_buffer={-1152921513230336000:-1152921513163227136}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7120-L7121] CALL, EXPR ldv__builtin_expect((unsigned long )urb->transfer_buffer == (unsigned long )((void *)0), 0L) VAL [\old(c)=0, \old(exp)=0, __this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8163] return (exp); VAL [\old(c)=0, \old(exp)=0, \result=0, __this_module={4398046511104:4096}, bit_desc={372:0}, c=0, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, exp=0, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7120-L7121] RET, EXPR ldv__builtin_expect((unsigned long )urb->transfer_buffer == (unsigned long )((void *)0), 0L) VAL [\old(mem_flags)=9, __this_module={4398046511104:4096}, bit_desc={372:0}, dev={0:3}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, hcd={393:392}, hcd={393:392}, ldv__builtin_expect((unsigned long )urb->transfer_buffer == (unsigned long )((void *)0), 0L)=0, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=9, ret=0, the_controller={0:0}, the_pdev={375:0}, urb={0:-8067547855910338688}, urb={0:-8067547855910338688}, urb->transfer_buffer={-1152921513230336000:-1152921513163227136}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7120-L7121] tmp___3 = ldv__builtin_expect((unsigned long )urb->transfer_buffer == (unsigned long )((void *)0), 0L) [L7122] COND FALSE !(tmp___3 != 0L) VAL [\old(mem_flags)=9, __this_module={4398046511104:4096}, bit_desc={372:0}, dev={0:3}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, hcd={393:392}, hcd={393:392}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=9, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, urb={0:-8067547855910338688}, urb={0:-8067547855910338688}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7133] CALL, EXPR spinlock_check(& the_controller->lock) VAL [__this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, lock={0:0}, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L5188] return (& lock->ldv_5812.rlock); VAL [\result={0:0}, __this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, lock={0:0}, lock={0:0}, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7133] RET, EXPR spinlock_check(& the_controller->lock) VAL [\old(mem_flags)=9, __this_module={4398046511104:4096}, bit_desc={372:0}, dev={0:3}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, hcd={393:392}, hcd={393:392}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=9, ret=0, spinlock_check(& the_controller->lock)={0:0}, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, urb={0:-8067547855910338688}, urb={0:-8067547855910338688}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7133] tmp___5 = spinlock_check(& the_controller->lock) [L7134] CALL, EXPR _raw_spin_lock_irqsave(tmp___5) VAL [__this_module={4398046511104:4096}, arg0={0:0}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8294] return __VERIFIER_nondet_ulong(); [L7134] RET, EXPR _raw_spin_lock_irqsave(tmp___5) VAL [\old(mem_flags)=9, __this_module={4398046511104:4096}, _raw_spin_lock_irqsave(tmp___5)=394, bit_desc={372:0}, dev={0:3}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, hcd={393:392}, hcd={393:392}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=9, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, tmp___5={0:0}, urb={0:-8067547855910338688}, urb={0:-8067547855910338688}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7134] flags = _raw_spin_lock_irqsave(tmp___5) [L7135] EXPR urb->status VAL [\old(mem_flags)=9, __this_module={4398046511104:4096}, bit_desc={372:0}, dev={0:3}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, flags=394, hcd={393:392}, hcd={393:392}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=9, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, tmp___5={0:0}, urb={0:-8067547855910338688}, urb={0:-8067547855910338688}, urb->status=-115, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7135] COND FALSE !(urb->status != -115) [L7141] CALL, EXPR usb_hcd_link_urb_to_ep(hcd, urb) [L8410] return __VERIFIER_nondet_int(); [L7141] RET, EXPR usb_hcd_link_urb_to_ep(hcd, urb) [L7141] ret = usb_hcd_link_urb_to_ep(hcd, urb) [L7142] COND FALSE !(ret != 0) [L7146] EXPR urb->pipe VAL [\old(mem_flags)=9, __this_module={4398046511104:4096}, bit_desc={372:0}, dev={0:3}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, flags=394, hcd={393:392}, hcd={393:392}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=9, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, tmp___5={0:0}, urb={0:-8067547855910338688}, urb={0:-8067547855910338688}, urb->pipe=-2147483648, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7146] COND TRUE ((urb->pipe >> 8) & 127U) == 0U [L7147] EXPR urb->pipe [L7147] type = (__u8 )(urb->pipe >> 30) [L7148] EXPR urb->setup_packet [L7148] ctrlreq = (struct usb_ctrlrequest *)urb->setup_packet [L7149] EXPR the_controller->pending_port VAL [\old(mem_flags)=9, __this_module={4398046511104:4096}, bit_desc={372:0}, ctrlreq={-4611686018427387904:-4611686018427387904}, dev={0:3}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, flags=394, hcd={393:392}, hcd={393:392}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=9, ret=0, the_controller={0:0}, the_controller->pending_port=-2147483535, the_pdev={375:0}, tmp___3=0, tmp___5={0:0}, type=2, urb={0:-8067547855910338688}, urb={0:-8067547855910338688}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7149] CALL, EXPR port_to_vdev((__u32 )the_controller->pending_port) VAL [\old(port)=2147483761, __this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L4809] return ((struct vhci_device *)(& the_controller->vdev) + (unsigned long )port); VAL [\old(port)=2147483761, \result={0:1597727918293}, __this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, port=2147483761, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7149] RET, EXPR port_to_vdev((__u32 )the_controller->pending_port) VAL [\old(mem_flags)=9, __this_module={4398046511104:4096}, bit_desc={372:0}, ctrlreq={-4611686018427387904:-4611686018427387904}, dev={0:3}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, flags=394, hcd={393:392}, hcd={393:392}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=9, port_to_vdev((__u32 )the_controller->pending_port)={0:1597727918293}, ret=0, the_controller={0:0}, the_controller->pending_port=-2147483535, the_pdev={375:0}, tmp___3=0, tmp___5={0:0}, type=2, urb={0:-8067547855910338688}, urb={0:-8067547855910338688}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7149] tmp___6 = port_to_vdev((__u32 )the_controller->pending_port) [L7150] vdev = tmp___6 VAL [\old(mem_flags)=9, __this_module={4398046511104:4096}, bit_desc={372:0}, ctrlreq={-4611686018427387904:-4611686018427387904}, dev={0:3}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, flags=394, hcd={393:392}, hcd={393:392}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=9, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, tmp___5={0:0}, tmp___6={0:1597727918293}, type=2, urb={0:-8067547855910338688}, urb={0:-8067547855910338688}, usbip_debug_flag=0, vdev={0:1597727918293}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7151] COND FALSE !((unsigned int )type != 2U || (unsigned long )ctrlreq == (unsigned long )((struct usb_ctrlrequest *)0)) [L7157] ctrlreq->bRequest [L7158] case 5: [L7160] ctrlreq->wValue [L7160] vdev->rhport [L7161] EXPR vdev->udev VAL [\old(mem_flags)=9, __this_module={4398046511104:4096}, bit_desc={372:0}, ctrlreq={-4611686018427387904:-4611686018427387904}, ctrlreq->bRequest=5, dev={0:3}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, flags=394, hcd={393:392}, hcd={393:392}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, mem_flags=9, ret=0, the_controller={0:0}, the_pdev={375:0}, tmp___3=0, tmp___5={0:0}, tmp___6={0:1597727918293}, type=2, urb={0:-8067547855910338688}, urb={0:-8067547855910338688}, usbip_debug_flag=0, vdev={0:1597727918293}, vdev->udev={-4429993903243894720:-181692115183493184}, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L7161] COND TRUE (unsigned long )vdev->udev != (unsigned long )((struct usb_device *)0) [L7162] EXPR vdev->udev [L7162] CALL ldv_usb_put_dev_21(vdev->udev) [L8111] FCALL usb_put_dev(ldv_func_arg1) VAL [__this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, ldv_func_arg1={-4429993903243894720:-181692115183493184}, ldv_func_arg1={-4429993903243894720:-181692115183493184}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8112] CALL ldv_usb_put_dev() VAL [\old(ldv_usb_dev_state)=0, __this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8227] COND FALSE !(ldv_usb_dev_state >= 2) VAL [\old(ldv_usb_dev_state)=0, __this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8229] CALL ldv_error() VAL [\old(ldv_usb_dev_state)=0, __this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] [L8157] reach_error() VAL [\old(ldv_usb_dev_state)=0, __this_module={4398046511104:4096}, bit_desc={372:0}, dev_attr_attach={367:0}, dev_attr_detach={366:0}, dev_attr_group={369:0}, dev_attr_status={365:0}, dev_attr_usbip_debug={512:0}, dev_attrs={368:0}, driver_desc={371:0}, driver_name={370:0}, LDV_IN_INTERRUPT=1, ldv_usb_dev_state=0, the_controller={0:0}, the_pdev={375:0}, usbip_debug_flag=0, vhci_driver={374:0}, vhci_hc_driver={373:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 893 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.5s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1136 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1133 mSDsluCounter, 10513 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6843 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 3670 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1567occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 22.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 190 SizeOfPredicates, 5 NumberOfNonLiveVariables, 5626 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-19 22:53:07,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample