./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 f4b24e32 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-?-f4b24e3 [2022-07-13 23:29:21,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 23:29:21,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 23:29:21,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 23:29:21,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 23:29:21,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 23:29:21,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 23:29:21,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 23:29:21,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 23:29:21,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 23:29:21,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 23:29:21,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 23:29:21,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 23:29:21,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 23:29:21,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 23:29:21,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 23:29:21,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 23:29:21,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 23:29:21,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 23:29:21,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 23:29:21,331 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 23:29:21,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 23:29:21,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 23:29:21,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 23:29:21,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 23:29:21,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 23:29:21,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 23:29:21,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 23:29:21,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 23:29:21,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 23:29:21,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 23:29:21,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 23:29:21,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 23:29:21,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 23:29:21,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 23:29:21,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 23:29:21,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 23:29:21,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 23:29:21,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 23:29:21,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 23:29:21,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 23:29:21,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 23:29:21,355 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-13 23:29:21,385 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 23:29:21,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 23:29:21,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 23:29:21,386 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 23:29:21,387 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 23:29:21,387 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 23:29:21,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 23:29:21,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 23:29:21,388 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 23:29:21,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 23:29:21,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 23:29:21,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 23:29:21,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 23:29:21,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 23:29:21,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 23:29:21,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 23:29:21,390 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 23:29:21,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 23:29:21,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 23:29:21,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 23:29:21,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 23:29:21,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 23:29:21,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 23:29:21,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 23:29:21,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 23:29:21,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 23:29:21,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 23:29:21,394 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 23:29:21,394 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 23:29:21,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 23:29:21,394 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87ebe4cbc19149709e03f5df167fc3a270d2a12f873f1a9ed2e481b56a29b864 [2022-07-13 23:29:21,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 23:29:21,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 23:29:21,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 23:29:21,679 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 23:29:21,680 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 23:29:21,681 INFO L432 ainManager$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 [2022-07-13 23:29:21,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a204a2dc/c68219ea58704bed810026d1b81af561/FLAG05eb08968 [2022-07-13 23:29:22,424 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 23:29:22,424 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 [2022-07-13 23:29:22,469 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a204a2dc/c68219ea58704bed810026d1b81af561/FLAG05eb08968 [2022-07-13 23:29:22,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a204a2dc/c68219ea58704bed810026d1b81af561 [2022-07-13 23:29:22,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 23:29:22,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 23:29:22,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 23:29:22,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 23:29:22,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 23:29:22,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:29:22" (1/1) ... [2022-07-13 23:29:22,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@498d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:22, skipping insertion in model container [2022-07-13 23:29:22,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:29:22" (1/1) ... [2022-07-13 23:29:22,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 23:29:22,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 23:29:24,168 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] [2022-07-13 23:29:24,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:29:24,238 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 23:29:24,542 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] [2022-07-13 23:29:24,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:29:24,610 INFO L208 MainTranslator]: Completed translation [2022-07-13 23:29:24,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:24 WrapperNode [2022-07-13 23:29:24,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 23:29:24,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 23:29:24,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 23:29:24,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 23:29:24,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:24" (1/1) ... [2022-07-13 23:29:24,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:24" (1/1) ... [2022-07-13 23:29:24,806 INFO L137 Inliner]: procedures = 204, calls = 1862, calls flagged for inlining = 100, calls inlined = 66, statements flattened = 3028 [2022-07-13 23:29:24,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 23:29:24,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 23:29:24,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 23:29:24,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 23:29:24,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:24" (1/1) ... [2022-07-13 23:29:24,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:24" (1/1) ... [2022-07-13 23:29:24,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:24" (1/1) ... [2022-07-13 23:29:24,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:24" (1/1) ... [2022-07-13 23:29:24,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:24" (1/1) ... [2022-07-13 23:29:24,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:24" (1/1) ... [2022-07-13 23:29:24,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:24" (1/1) ... [2022-07-13 23:29:25,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 23:29:25,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 23:29:25,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 23:29:25,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 23:29:25,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:24" (1/1) ... [2022-07-13 23:29:25,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 23:29:25,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:29:25,037 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) [2022-07-13 23:29:25,059 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 [2022-07-13 23:29:25,077 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-07-13 23:29:25,077 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-07-13 23:29:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-07-13 23:29:25,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-07-13 23:29:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2022-07-13 23:29:25,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2022-07-13 23:29:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-13 23:29:25,078 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-13 23:29:25,079 INFO L130 BoogieDeclarations]: Found specification of procedure vhci_to_hcd [2022-07-13 23:29:25,079 INFO L138 BoogieDeclarations]: Found implementation of procedure vhci_to_hcd [2022-07-13 23:29:25,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-13 23:29:25,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-13 23:29:25,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-13 23:29:25,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-13 23:29:25,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-13 23:29:25,080 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-13 23:29:25,080 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-13 23:29:25,080 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-13 23:29:25,080 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_giveback_urb [2022-07-13 23:29:25,080 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_giveback_urb [2022-07-13 23:29:25,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 23:29:25,080 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-13 23:29:25,081 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-13 23:29:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 23:29:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-13 23:29:25,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-13 23:29:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-13 23:29:25,081 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-13 23:29:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 23:29:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 23:29:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-07-13 23:29:25,082 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-07-13 23:29:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure usbip_event_add [2022-07-13 23:29:25,082 INFO L138 BoogieDeclarations]: Found implementation of procedure usbip_event_add [2022-07-13 23:29:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-13 23:29:25,083 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-13 23:29:25,083 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-13 23:29:25,083 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-13 23:29:25,083 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-13 23:29:25,083 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-13 23:29:25,083 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-13 23:29:25,083 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-13 23:29:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-07-13 23:29:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-07-13 23:29:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-13 23:29:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-13 23:29:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-13 23:29:25,085 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-13 23:29:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-13 23:29:25,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-13 23:29:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-07-13 23:29:25,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-07-13 23:29:25,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2022-07-13 23:29:25,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2022-07-13 23:29:25,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 23:29:25,087 INFO L130 BoogieDeclarations]: Found specification of procedure dump_port_status [2022-07-13 23:29:25,087 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_port_status [2022-07-13 23:29:25,088 INFO L130 BoogieDeclarations]: Found specification of procedure port_to_vdev [2022-07-13 23:29:25,088 INFO L138 BoogieDeclarations]: Found implementation of procedure port_to_vdev [2022-07-13 23:29:25,088 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-13 23:29:25,089 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-13 23:29:25,089 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-13 23:29:25,089 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-13 23:29:25,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 23:29:25,090 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-13 23:29:25,090 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-13 23:29:25,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-13 23:29:25,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-13 23:29:25,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev [2022-07-13 23:29:25,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev [2022-07-13 23:29:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 23:29:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2022-07-13 23:29:25,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2022-07-13 23:29:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-07-13 23:29:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 23:29:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 23:29:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-13 23:29:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-13 23:29:25,092 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-13 23:29:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-13 23:29:25,093 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-13 23:29:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-07-13 23:29:25,093 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-07-13 23:29:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-13 23:29:25,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-13 23:29:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_vhci [2022-07-13 23:29:25,093 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_vhci [2022-07-13 23:29:25,094 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-07-13 23:29:25,094 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-07-13 23:29:25,094 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-13 23:29:25,094 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-13 23:29:25,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev [2022-07-13 23:29:25,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev [2022-07-13 23:29:25,095 INFO L130 BoogieDeclarations]: Found specification of procedure vhci_dev [2022-07-13 23:29:25,095 INFO L138 BoogieDeclarations]: Found implementation of procedure vhci_dev [2022-07-13 23:29:25,096 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-13 23:29:25,096 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-13 23:29:25,096 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-13 23:29:25,096 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-13 23:29:25,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 23:29:25,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-13 23:29:25,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-13 23:29:25,098 INFO L130 BoogieDeclarations]: Found specification of procedure usbip_task_init [2022-07-13 23:29:25,098 INFO L138 BoogieDeclarations]: Found implementation of procedure usbip_task_init [2022-07-13 23:29:25,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 23:29:25,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 23:29:25,641 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 23:29:25,642 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 23:29:28,332 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 23:29:28,354 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 23:29:28,355 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 23:29:28,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:29:28 BoogieIcfgContainer [2022-07-13 23:29:28,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 23:29:28,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 23:29:28,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 23:29:28,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 23:29:28,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 11:29:22" (1/3) ... [2022-07-13 23:29:28,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c892af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:29:28, skipping insertion in model container [2022-07-13 23:29:28,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:24" (2/3) ... [2022-07-13 23:29:28,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c892af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:29:28, skipping insertion in model container [2022-07-13 23:29:28,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:29:28" (3/3) ... [2022-07-13 23:29:28,371 INFO L111 eAbstractionObserver]: Analyzing ICFG main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i [2022-07-13 23:29:28,385 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 23:29:28,386 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 23:29:28,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 23:29:28,483 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@313c8cc7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3422fb42 [2022-07-13 23:29:28,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 23:29:28,496 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) [2022-07-13 23:29:28,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-13 23:29:28,510 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:29:28,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:29:28,512 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:29:28,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:29:28,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1287876963, now seen corresponding path program 1 times [2022-07-13 23:29:28,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:29:28,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076661914] [2022-07-13 23:29:28,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:29:28,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:29:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:29,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:29:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:29,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-13 23:29:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:29,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:29:29,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:29:29,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076661914] [2022-07-13 23:29:29,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076661914] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:29:29,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:29:29,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:29:29,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704767121] [2022-07-13 23:29:29,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:29:29,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:29:29,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:29:29,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:29:29,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:29:29,170 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) [2022-07-13 23:29:29,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:29:29,388 INFO L93 Difference]: Finished difference Result 2459 states and 3506 transitions. [2022-07-13 23:29:29,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:29:29,391 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 [2022-07-13 23:29:29,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:29:29,412 INFO L225 Difference]: With dead ends: 2459 [2022-07-13 23:29:29,412 INFO L226 Difference]: Without dead ends: 1570 [2022-07-13 23:29:29,424 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 [2022-07-13 23:29:29,427 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 [2022-07-13 23:29:29,428 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] [2022-07-13 23:29:29,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-07-13 23:29:29,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1567. [2022-07-13 23:29:29,574 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) [2022-07-13 23:29:29,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2198 transitions. [2022-07-13 23:29:29,586 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2198 transitions. Word has length 19 [2022-07-13 23:29:29,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:29:29,586 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2198 transitions. [2022-07-13 23:29:29,587 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) [2022-07-13 23:29:29,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2198 transitions. [2022-07-13 23:29:29,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-13 23:29:29,600 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:29:29,601 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] [2022-07-13 23:29:29,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 23:29:29,601 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:29:29,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:29:29,602 INFO L85 PathProgramCache]: Analyzing trace with hash -619409099, now seen corresponding path program 1 times [2022-07-13 23:29:29,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:29:29,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285224629] [2022-07-13 23:29:29,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:29:29,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:29:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:29,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:29:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:29,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-13 23:29:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:29,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-13 23:29:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:29,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 23:29:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:29,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 23:29:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:29,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:29:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:29,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-13 23:29:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:29,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 23:29:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:29,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 23:29:29,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:29:29,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285224629] [2022-07-13 23:29:29,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285224629] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:29:29,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:29:29,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 23:29:29,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869637899] [2022-07-13 23:29:29,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:29:29,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:29:29,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:29:29,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:29:29,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 23:29:29,937 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) [2022-07-13 23:29:30,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:29:30,010 INFO L93 Difference]: Finished difference Result 3093 states and 4339 transitions. [2022-07-13 23:29:30,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 23:29:30,011 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 [2022-07-13 23:29:30,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:29:30,020 INFO L225 Difference]: With dead ends: 3093 [2022-07-13 23:29:30,021 INFO L226 Difference]: Without dead ends: 1567 [2022-07-13 23:29:30,026 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 [2022-07-13 23:29:30,027 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 [2022-07-13 23:29:30,028 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] [2022-07-13 23:29:30,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2022-07-13 23:29:30,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1567. [2022-07-13 23:29:30,087 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) [2022-07-13 23:29:30,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2197 transitions. [2022-07-13 23:29:30,097 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2197 transitions. Word has length 63 [2022-07-13 23:29:30,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:29:30,097 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2197 transitions. [2022-07-13 23:29:30,098 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) [2022-07-13 23:29:30,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2197 transitions. [2022-07-13 23:29:30,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-13 23:29:30,102 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:29:30,102 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] [2022-07-13 23:29:30,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 23:29:30,103 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:29:30,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:29:30,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1833716892, now seen corresponding path program 1 times [2022-07-13 23:29:30,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:29:30,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955871960] [2022-07-13 23:29:30,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:29:30,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:29:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:30,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:29:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:30,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-13 23:29:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:30,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 23:29:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:30,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-13 23:29:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:30,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 23:29:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:30,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-13 23:29:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:30,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 23:29:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:30,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 23:29:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:30,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 23:29:30,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:29:30,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955871960] [2022-07-13 23:29:30,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955871960] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:29:30,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:29:30,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 23:29:30,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256042364] [2022-07-13 23:29:30,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:29:30,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:29:30,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:29:30,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:29:30,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:29:30,368 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) [2022-07-13 23:29:30,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:29:30,486 INFO L93 Difference]: Finished difference Result 3093 states and 4338 transitions. [2022-07-13 23:29:30,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 23:29:30,487 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 [2022-07-13 23:29:30,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:29:30,497 INFO L225 Difference]: With dead ends: 3093 [2022-07-13 23:29:30,497 INFO L226 Difference]: Without dead ends: 1555 [2022-07-13 23:29:30,502 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 [2022-07-13 23:29:30,503 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 [2022-07-13 23:29:30,503 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] [2022-07-13 23:29:30,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2022-07-13 23:29:30,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1555. [2022-07-13 23:29:30,553 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) [2022-07-13 23:29:30,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2179 transitions. [2022-07-13 23:29:30,562 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2179 transitions. Word has length 67 [2022-07-13 23:29:30,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:29:30,562 INFO L495 AbstractCegarLoop]: Abstraction has 1555 states and 2179 transitions. [2022-07-13 23:29:30,563 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) [2022-07-13 23:29:30,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2179 transitions. [2022-07-13 23:29:30,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-13 23:29:30,566 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:29:30,566 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] [2022-07-13 23:29:30,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 23:29:30,567 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:29:30,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:29:30,567 INFO L85 PathProgramCache]: Analyzing trace with hash 688026883, now seen corresponding path program 1 times [2022-07-13 23:29:30,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:29:30,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83296733] [2022-07-13 23:29:30,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:29:30,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:29:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 23:29:31,071 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 23:29:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 23:29:31,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 23:29:31,569 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 23:29:31,570 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 23:29:31,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 23:29:31,575 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-13 23:29:31,579 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 23:29:31,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 11:29:31 BoogieIcfgContainer [2022-07-13 23:29:31,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 23:29:31,686 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 23:29:31,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 23:29:31,687 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 23:29:31,687 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:29:28" (3/4) ... [2022-07-13 23:29:31,690 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 23:29:31,690 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 23:29:31,691 INFO L158 Benchmark]: Toolchain (without parser) took 9141.65ms. Allocated memory was 100.7MB in the beginning and 455.1MB in the end (delta: 354.4MB). Free memory was 61.4MB in the beginning and 274.4MB in the end (delta: -213.0MB). Peak memory consumption was 142.0MB. Max. memory is 16.1GB. [2022-07-13 23:29:31,691 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 23:29:31,692 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2057.73ms. Allocated memory was 100.7MB in the beginning and 192.9MB in the end (delta: 92.3MB). Free memory was 61.1MB in the beginning and 134.4MB in the end (delta: -73.2MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2022-07-13 23:29:31,692 INFO L158 Benchmark]: Boogie Procedure Inliner took 194.78ms. Allocated memory is still 192.9MB. Free memory was 134.4MB in the beginning and 116.5MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-13 23:29:31,693 INFO L158 Benchmark]: Boogie Preprocessor took 192.11ms. Allocated memory is still 192.9MB. Free memory was 116.5MB in the beginning and 99.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-13 23:29:31,693 INFO L158 Benchmark]: RCFGBuilder took 3358.17ms. Allocated memory was 192.9MB in the beginning and 331.4MB in the end (delta: 138.4MB). Free memory was 99.7MB in the beginning and 244.9MB in the end (delta: -145.2MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. [2022-07-13 23:29:31,693 INFO L158 Benchmark]: TraceAbstraction took 3324.13ms. Allocated memory was 331.4MB in the beginning and 455.1MB in the end (delta: 123.7MB). Free memory was 244.9MB in the beginning and 274.4MB in the end (delta: -29.5MB). Peak memory consumption was 169.7MB. Max. memory is 16.1GB. [2022-07-13 23:29:31,694 INFO L158 Benchmark]: Witness Printer took 3.92ms. Allocated memory is still 455.1MB. Free memory is still 274.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 23:29:31,695 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 100.7MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2057.73ms. Allocated memory was 100.7MB in the beginning and 192.9MB in the end (delta: 92.3MB). Free memory was 61.1MB in the beginning and 134.4MB in the end (delta: -73.2MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 194.78ms. Allocated memory is still 192.9MB. Free memory was 134.4MB in the beginning and 116.5MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 192.11ms. Allocated memory is still 192.9MB. Free memory was 116.5MB in the beginning and 99.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 3358.17ms. Allocated memory was 192.9MB in the beginning and 331.4MB in the end (delta: 138.4MB). Free memory was 99.7MB in the beginning and 244.9MB in the end (delta: -145.2MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3324.13ms. Allocated memory was 331.4MB in the beginning and 455.1MB in the end (delta: 123.7MB). Free memory was 244.9MB in the beginning and 274.4MB in the end (delta: -29.5MB). Peak memory consumption was 169.7MB. Max. memory is 16.1GB. * Witness Printer took 3.92ms. Allocated memory is still 455.1MB. Free memory is still 274.4MB. 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: 3.1s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1140 SdHoareTripleChecker+Valid, 0.0s 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, 0.0s 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, 0.9s SatisfiabilityAnalysisTime, 0.6s 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 [2022-07-13 23:29:31,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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-?-f4b24e3 [2022-07-13 23:29:33,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 23:29:33,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 23:29:33,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 23:29:33,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 23:29:33,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 23:29:33,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 23:29:33,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 23:29:33,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 23:29:33,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 23:29:33,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 23:29:33,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 23:29:33,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 23:29:33,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 23:29:33,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 23:29:33,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 23:29:33,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 23:29:33,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 23:29:33,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 23:29:33,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 23:29:33,972 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 23:29:33,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 23:29:33,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 23:29:33,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 23:29:33,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 23:29:33,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 23:29:33,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 23:29:33,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 23:29:33,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 23:29:33,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 23:29:33,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 23:29:33,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 23:29:33,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 23:29:33,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 23:29:33,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 23:29:33,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 23:29:33,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 23:29:33,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 23:29:33,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 23:29:33,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 23:29:33,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 23:29:33,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 23:29:34,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-13 23:29:34,035 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 23:29:34,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 23:29:34,036 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 23:29:34,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 23:29:34,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 23:29:34,038 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 23:29:34,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 23:29:34,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 23:29:34,039 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 23:29:34,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 23:29:34,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 23:29:34,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 23:29:34,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 23:29:34,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 23:29:34,041 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 23:29:34,041 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 23:29:34,041 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 23:29:34,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 23:29:34,041 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 23:29:34,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 23:29:34,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 23:29:34,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 23:29:34,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 23:29:34,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 23:29:34,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 23:29:34,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 23:29:34,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 23:29:34,043 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 23:29:34,043 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 23:29:34,044 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 23:29:34,044 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 23:29:34,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 23:29:34,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 23:29:34,044 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87ebe4cbc19149709e03f5df167fc3a270d2a12f873f1a9ed2e481b56a29b864 [2022-07-13 23:29:34,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 23:29:34,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 23:29:34,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 23:29:34,418 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 23:29:34,419 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 23:29:34,421 INFO L432 ainManager$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 [2022-07-13 23:29:34,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d47126c83/64029d4c303f4b5082ef24daa1a6abcd/FLAG24f8052fd [2022-07-13 23:29:35,328 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 23:29:35,328 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 [2022-07-13 23:29:35,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d47126c83/64029d4c303f4b5082ef24daa1a6abcd/FLAG24f8052fd [2022-07-13 23:29:35,477 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d47126c83/64029d4c303f4b5082ef24daa1a6abcd [2022-07-13 23:29:35,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 23:29:35,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 23:29:35,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 23:29:35,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 23:29:35,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 23:29:35,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:29:35" (1/1) ... [2022-07-13 23:29:35,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23954b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:35, skipping insertion in model container [2022-07-13 23:29:35,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:29:35" (1/1) ... [2022-07-13 23:29:35,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 23:29:35,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 23:29:37,556 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] [2022-07-13 23:29:37,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:29:37,676 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-13 23:29:37,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 23:29:38,049 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] [2022-07-13 23:29:38,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:29:38,091 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 23:29:38,423 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] [2022-07-13 23:29:38,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:29:38,515 INFO L208 MainTranslator]: Completed translation [2022-07-13 23:29:38,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:38 WrapperNode [2022-07-13 23:29:38,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 23:29:38,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 23:29:38,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 23:29:38,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 23:29:38,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:38" (1/1) ... [2022-07-13 23:29:38,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:38" (1/1) ... [2022-07-13 23:29:38,747 INFO L137 Inliner]: procedures = 218, calls = 1862, calls flagged for inlining = 100, calls inlined = 66, statements flattened = 2985 [2022-07-13 23:29:38,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 23:29:38,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 23:29:38,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 23:29:38,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 23:29:38,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:38" (1/1) ... [2022-07-13 23:29:38,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:38" (1/1) ... [2022-07-13 23:29:38,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:38" (1/1) ... [2022-07-13 23:29:38,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:38" (1/1) ... [2022-07-13 23:29:38,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:38" (1/1) ... [2022-07-13 23:29:38,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:38" (1/1) ... [2022-07-13 23:29:38,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:38" (1/1) ... [2022-07-13 23:29:38,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 23:29:38,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 23:29:38,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 23:29:38,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 23:29:38,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:38" (1/1) ... [2022-07-13 23:29:38,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 23:29:38,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:29:38,989 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) [2022-07-13 23:29:39,016 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 [2022-07-13 23:29:39,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-13 23:29:39,032 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-07-13 23:29:39,032 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-07-13 23:29:39,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-13 23:29:39,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-13 23:29:39,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-13 23:29:39,032 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-07-13 23:29:39,032 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-07-13 23:29:39,033 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2022-07-13 23:29:39,033 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2022-07-13 23:29:39,033 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-13 23:29:39,033 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-13 23:29:39,033 INFO L130 BoogieDeclarations]: Found specification of procedure vhci_to_hcd [2022-07-13 23:29:39,033 INFO L138 BoogieDeclarations]: Found implementation of procedure vhci_to_hcd [2022-07-13 23:29:39,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-13 23:29:39,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-13 23:29:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-13 23:29:39,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-13 23:29:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-13 23:29:39,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-13 23:29:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-13 23:29:39,034 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-13 23:29:39,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_giveback_urb [2022-07-13 23:29:39,035 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_giveback_urb [2022-07-13 23:29:39,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 23:29:39,035 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-13 23:29:39,035 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-13 23:29:39,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 23:29:39,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-13 23:29:39,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-13 23:29:39,036 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-13 23:29:39,036 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-13 23:29:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-13 23:29:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-13 23:29:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-13 23:29:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 23:29:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-13 23:29:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 23:29:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-07-13 23:29:39,038 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-07-13 23:29:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure usbip_event_add [2022-07-13 23:29:39,038 INFO L138 BoogieDeclarations]: Found implementation of procedure usbip_event_add [2022-07-13 23:29:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 23:29:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-13 23:29:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-13 23:29:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-13 23:29:39,039 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-13 23:29:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-13 23:29:39,040 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-13 23:29:39,040 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-13 23:29:39,040 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-13 23:29:39,040 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-13 23:29:39,041 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-13 23:29:39,041 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-07-13 23:29:39,041 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-07-13 23:29:39,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-13 23:29:39,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-13 23:29:39,042 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-13 23:29:39,042 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-13 23:29:39,042 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-13 23:29:39,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-13 23:29:39,042 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-07-13 23:29:39,042 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-07-13 23:29:39,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2022-07-13 23:29:39,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2022-07-13 23:29:39,043 INFO L130 BoogieDeclarations]: Found specification of procedure dump_port_status [2022-07-13 23:29:39,043 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_port_status [2022-07-13 23:29:39,043 INFO L130 BoogieDeclarations]: Found specification of procedure port_to_vdev [2022-07-13 23:29:39,044 INFO L138 BoogieDeclarations]: Found implementation of procedure port_to_vdev [2022-07-13 23:29:39,044 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-13 23:29:39,044 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-13 23:29:39,044 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-13 23:29:39,044 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-13 23:29:39,044 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-13 23:29:39,044 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-13 23:29:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-13 23:29:39,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-13 23:29:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev [2022-07-13 23:29:39,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev [2022-07-13 23:29:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 23:29:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2022-07-13 23:29:39,045 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2022-07-13 23:29:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-07-13 23:29:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 23:29:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 23:29:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-13 23:29:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-13 23:29:39,047 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-13 23:29:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-13 23:29:39,047 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-13 23:29:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-07-13 23:29:39,048 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-07-13 23:29:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-13 23:29:39,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-13 23:29:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_vhci [2022-07-13 23:29:39,049 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_vhci [2022-07-13 23:29:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-07-13 23:29:39,049 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-07-13 23:29:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-13 23:29:39,050 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-13 23:29:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev [2022-07-13 23:29:39,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev [2022-07-13 23:29:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure vhci_dev [2022-07-13 23:29:39,050 INFO L138 BoogieDeclarations]: Found implementation of procedure vhci_dev [2022-07-13 23:29:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-13 23:29:39,051 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-13 23:29:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-13 23:29:39,051 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-13 23:29:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-13 23:29:39,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-13 23:29:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure usbip_task_init [2022-07-13 23:29:39,052 INFO L138 BoogieDeclarations]: Found implementation of procedure usbip_task_init [2022-07-13 23:29:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 23:29:39,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 23:29:39,548 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 23:29:39,550 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 23:29:50,883 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 23:29:50,895 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 23:29:50,896 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 23:29:50,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:29:50 BoogieIcfgContainer [2022-07-13 23:29:50,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 23:29:50,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 23:29:50,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 23:29:50,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 23:29:50,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 11:29:35" (1/3) ... [2022-07-13 23:29:50,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f3287b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:29:50, skipping insertion in model container [2022-07-13 23:29:50,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:29:38" (2/3) ... [2022-07-13 23:29:50,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f3287b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:29:50, skipping insertion in model container [2022-07-13 23:29:50,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:29:50" (3/3) ... [2022-07-13 23:29:50,906 INFO L111 eAbstractionObserver]: Analyzing ICFG main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i [2022-07-13 23:29:50,919 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 23:29:50,919 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 23:29:50,984 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 23:29:50,989 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@2cc61518, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@226d3ced [2022-07-13 23:29:50,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 23:29:51,000 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) [2022-07-13 23:29:51,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-13 23:29:51,008 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:29:51,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:29:51,009 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:29:51,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:29:51,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1287876963, now seen corresponding path program 1 times [2022-07-13 23:29:51,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:29:51,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814254174] [2022-07-13 23:29:51,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:29:51,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:29:51,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:29:51,039 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) [2022-07-13 23:29:51,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 23:29:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:52,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 1795 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 23:29:52,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:29:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:29:52,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:29:52,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:29:52,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814254174] [2022-07-13 23:29:52,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814254174] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:29:52,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:29:52,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 23:29:52,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398355394] [2022-07-13 23:29:52,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:29:52,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:29:52,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:29:52,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:29:52,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:29:52,272 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) [2022-07-13 23:29:52,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:29:52,503 INFO L93 Difference]: Finished difference Result 2459 states and 3506 transitions. [2022-07-13 23:29:52,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:29:52,509 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 [2022-07-13 23:29:52,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:29:52,548 INFO L225 Difference]: With dead ends: 2459 [2022-07-13 23:29:52,548 INFO L226 Difference]: Without dead ends: 1570 [2022-07-13 23:29:52,562 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 [2022-07-13 23:29:52,568 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 [2022-07-13 23:29:52,569 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] [2022-07-13 23:29:52,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-07-13 23:29:52,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1567. [2022-07-13 23:29:52,746 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) [2022-07-13 23:29:52,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2198 transitions. [2022-07-13 23:29:52,764 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2198 transitions. Word has length 19 [2022-07-13 23:29:52,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:29:52,765 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2198 transitions. [2022-07-13 23:29:52,765 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) [2022-07-13 23:29:52,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2198 transitions. [2022-07-13 23:29:52,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-13 23:29:52,778 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:29:52,779 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] [2022-07-13 23:29:52,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-13 23:29:52,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:29:53,000 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:29:53,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:29:53,000 INFO L85 PathProgramCache]: Analyzing trace with hash -619409099, now seen corresponding path program 1 times [2022-07-13 23:29:53,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:29:53,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062842886] [2022-07-13 23:29:53,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:29:53,004 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:29:53,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:29:53,006 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) [2022-07-13 23:29:53,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-13 23:29:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:54,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1912 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:29:54,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:29:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:29:54,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:29:54,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:29:54,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062842886] [2022-07-13 23:29:54,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062842886] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:29:54,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:29:54,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 23:29:54,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503469125] [2022-07-13 23:29:54,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:29:54,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:29:54,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:29:54,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:29:54,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 23:29:54,094 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) [2022-07-13 23:29:54,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:29:54,214 INFO L93 Difference]: Finished difference Result 3093 states and 4339 transitions. [2022-07-13 23:29:54,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 23:29:54,214 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 [2022-07-13 23:29:54,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:29:54,225 INFO L225 Difference]: With dead ends: 3093 [2022-07-13 23:29:54,226 INFO L226 Difference]: Without dead ends: 1567 [2022-07-13 23:29:54,233 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 [2022-07-13 23:29:54,235 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 [2022-07-13 23:29:54,235 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] [2022-07-13 23:29:54,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2022-07-13 23:29:54,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1567. [2022-07-13 23:29:54,307 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) [2022-07-13 23:29:54,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2197 transitions. [2022-07-13 23:29:54,318 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2197 transitions. Word has length 63 [2022-07-13 23:29:54,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:29:54,318 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2197 transitions. [2022-07-13 23:29:54,319 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) [2022-07-13 23:29:54,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2197 transitions. [2022-07-13 23:29:54,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-13 23:29:54,323 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:29:54,323 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] [2022-07-13 23:29:54,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-13 23:29:54,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:29:54,536 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:29:54,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:29:54,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1833716892, now seen corresponding path program 1 times [2022-07-13 23:29:54,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:29:54,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261027821] [2022-07-13 23:29:54,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:29:54,540 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:29:54,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:29:54,542 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) [2022-07-13 23:29:54,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-13 23:29:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:29:55,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 23:29:55,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:29:55,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:29:55,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:29:55,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:29:55,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261027821] [2022-07-13 23:29:55,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261027821] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:29:55,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:29:55,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 23:29:55,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456165118] [2022-07-13 23:29:55,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:29:55,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:29:55,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:29:55,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:29:55,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:29:55,575 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) [2022-07-13 23:29:55,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:29:55,704 INFO L93 Difference]: Finished difference Result 3093 states and 4338 transitions. [2022-07-13 23:29:55,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 23:29:55,705 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 [2022-07-13 23:29:55,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:29:55,714 INFO L225 Difference]: With dead ends: 3093 [2022-07-13 23:29:55,715 INFO L226 Difference]: Without dead ends: 1555 [2022-07-13 23:29:55,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 23:29:55,722 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 [2022-07-13 23:29:55,723 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] [2022-07-13 23:29:55,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2022-07-13 23:29:55,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1555. [2022-07-13 23:29:55,768 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) [2022-07-13 23:29:55,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2179 transitions. [2022-07-13 23:29:55,778 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2179 transitions. Word has length 67 [2022-07-13 23:29:55,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:29:55,779 INFO L495 AbstractCegarLoop]: Abstraction has 1555 states and 2179 transitions. [2022-07-13 23:29:55,779 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) [2022-07-13 23:29:55,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2179 transitions. [2022-07-13 23:29:55,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-13 23:29:55,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:29:55,783 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] [2022-07-13 23:29:55,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-13 23:29:56,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:29:56,002 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:29:56,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:29:56,002 INFO L85 PathProgramCache]: Analyzing trace with hash 688026883, now seen corresponding path program 1 times [2022-07-13 23:29:56,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:29:56,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809435801] [2022-07-13 23:29:56,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:29:56,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:29:56,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:29:56,007 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) [2022-07-13 23:29:56,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-13 23:30:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 23:30:16,274 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 23:30:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 23:30:39,370 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-13 23:30:39,371 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 23:30:39,372 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 23:30:39,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-13 23:30:39,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:30:39,599 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-13 23:30:39,602 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 23:30:39,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 11:30:39 BoogieIcfgContainer [2022-07-13 23:30:39,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 23:30:39,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 23:30:39,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 23:30:39,763 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 23:30:39,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:29:50" (3/4) ... [2022-07-13 23:30:39,766 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 23:30:39,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 23:30:39,768 INFO L158 Benchmark]: Toolchain (without parser) took 64286.73ms. Allocated memory was 56.6MB in the beginning and 459.3MB in the end (delta: 402.7MB). Free memory was 24.2MB in the beginning and 345.8MB in the end (delta: -321.6MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. [2022-07-13 23:30:39,770 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 56.6MB. Free memory was 38.2MB in the beginning and 38.1MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 23:30:39,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3034.47ms. Allocated memory was 56.6MB in the beginning and 190.8MB in the end (delta: 134.2MB). Free memory was 23.9MB in the beginning and 121.3MB in the end (delta: -97.3MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2022-07-13 23:30:39,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 229.69ms. Allocated memory is still 190.8MB. Free memory was 121.3MB in the beginning and 103.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-13 23:30:39,771 INFO L158 Benchmark]: Boogie Preprocessor took 208.43ms. Allocated memory is still 190.8MB. Free memory was 103.3MB in the beginning and 120.8MB in the end (delta: -17.5MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-07-13 23:30:39,771 INFO L158 Benchmark]: RCFGBuilder took 11941.02ms. Allocated memory was 190.8MB in the beginning and 381.7MB in the end (delta: 190.8MB). Free memory was 120.8MB in the beginning and 172.0MB in the end (delta: -51.3MB). Peak memory consumption was 146.8MB. Max. memory is 16.1GB. [2022-07-13 23:30:39,771 INFO L158 Benchmark]: TraceAbstraction took 48861.33ms. Allocated memory was 381.7MB in the beginning and 459.3MB in the end (delta: 77.6MB). Free memory was 172.0MB in the beginning and 346.8MB in the end (delta: -174.8MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. [2022-07-13 23:30:39,771 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 459.3MB. Free memory was 346.8MB in the beginning and 345.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 23:30:39,775 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 56.6MB. Free memory was 38.2MB in the beginning and 38.1MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3034.47ms. Allocated memory was 56.6MB in the beginning and 190.8MB in the end (delta: 134.2MB). Free memory was 23.9MB in the beginning and 121.3MB in the end (delta: -97.3MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 229.69ms. Allocated memory is still 190.8MB. Free memory was 121.3MB in the beginning and 103.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 208.43ms. Allocated memory is still 190.8MB. Free memory was 103.3MB in the beginning and 120.8MB in the end (delta: -17.5MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * RCFGBuilder took 11941.02ms. Allocated memory was 190.8MB in the beginning and 381.7MB in the end (delta: 190.8MB). Free memory was 120.8MB in the beginning and 172.0MB in the end (delta: -51.3MB). Peak memory consumption was 146.8MB. Max. memory is 16.1GB. * TraceAbstraction took 48861.33ms. Allocated memory was 381.7MB in the beginning and 459.3MB in the end (delta: 77.6MB). Free memory was 172.0MB in the beginning and 346.8MB in the end (delta: -174.8MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 459.3MB. Free memory was 346.8MB in the beginning and 345.8MB in the end (delta: 1.0MB). 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. 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: 48.6s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 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: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s 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 [2022-07-13 23:30:39,847 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