./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 35987657 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-?-3598765 [2022-07-21 10:23:08,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 10:23:08,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 10:23:08,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 10:23:08,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 10:23:08,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 10:23:08,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 10:23:08,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 10:23:08,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 10:23:08,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 10:23:08,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 10:23:08,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 10:23:08,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 10:23:08,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 10:23:08,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 10:23:08,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 10:23:08,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 10:23:08,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 10:23:08,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 10:23:08,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 10:23:08,184 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 10:23:08,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 10:23:08,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 10:23:08,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 10:23:08,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 10:23:08,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 10:23:08,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 10:23:08,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 10:23:08,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 10:23:08,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 10:23:08,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 10:23:08,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 10:23:08,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 10:23:08,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 10:23:08,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 10:23:08,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 10:23:08,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 10:23:08,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 10:23:08,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 10:23:08,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 10:23:08,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 10:23:08,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 10:23:08,215 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 10:23:08,244 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 10:23:08,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 10:23:08,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 10:23:08,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 10:23:08,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 10:23:08,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 10:23:08,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 10:23:08,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 10:23:08,248 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 10:23:08,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 10:23:08,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 10:23:08,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 10:23:08,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 10:23:08,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 10:23:08,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 10:23:08,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 10:23:08,250 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 10:23:08,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 10:23:08,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 10:23:08,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 10:23:08,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 10:23:08,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:23:08,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 10:23:08,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 10:23:08,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 10:23:08,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 10:23:08,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 10:23:08,252 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 10:23:08,252 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 10:23:08,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 10:23:08,253 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87ebe4cbc19149709e03f5df167fc3a270d2a12f873f1a9ed2e481b56a29b864 [2022-07-21 10:23:08,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 10:23:08,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 10:23:08,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 10:23:08,569 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 10:23:08,572 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 10:23:08,574 INFO L432 ainManager$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 [2022-07-21 10:23:08,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b71684e2/0ecba5ce75114d0cbe6d88e72d5b08bb/FLAG97e7b8811 [2022-07-21 10:23:09,521 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 10:23:09,521 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 [2022-07-21 10:23:09,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b71684e2/0ecba5ce75114d0cbe6d88e72d5b08bb/FLAG97e7b8811 [2022-07-21 10:23:09,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b71684e2/0ecba5ce75114d0cbe6d88e72d5b08bb [2022-07-21 10:23:09,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 10:23:09,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 10:23:09,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 10:23:09,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 10:23:09,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 10:23:09,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:23:09" (1/1) ... [2022-07-21 10:23:09,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1334a9d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:09, skipping insertion in model container [2022-07-21 10:23:09,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:23:09" (1/1) ... [2022-07-21 10:23:09,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 10:23:09,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:23:11,368 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] [2022-07-21 10:23:11,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:23:11,454 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 10:23:11,792 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] [2022-07-21 10:23:11,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:23:11,867 INFO L208 MainTranslator]: Completed translation [2022-07-21 10:23:11,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:11 WrapperNode [2022-07-21 10:23:11,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 10:23:11,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 10:23:11,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 10:23:11,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 10:23:11,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:11" (1/1) ... [2022-07-21 10:23:11,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:11" (1/1) ... [2022-07-21 10:23:12,103 INFO L137 Inliner]: procedures = 204, calls = 1862, calls flagged for inlining = 100, calls inlined = 66, statements flattened = 3028 [2022-07-21 10:23:12,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 10:23:12,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 10:23:12,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 10:23:12,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 10:23:12,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:11" (1/1) ... [2022-07-21 10:23:12,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:11" (1/1) ... [2022-07-21 10:23:12,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:11" (1/1) ... [2022-07-21 10:23:12,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:11" (1/1) ... [2022-07-21 10:23:12,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:11" (1/1) ... [2022-07-21 10:23:12,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:11" (1/1) ... [2022-07-21 10:23:12,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:11" (1/1) ... [2022-07-21 10:23:12,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 10:23:12,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 10:23:12,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 10:23:12,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 10:23:12,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:11" (1/1) ... [2022-07-21 10:23:12,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:23:12,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:23:12,313 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) [2022-07-21 10:23:12,335 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 [2022-07-21 10:23:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-07-21 10:23:12,354 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-07-21 10:23:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-07-21 10:23:12,354 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-07-21 10:23:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2022-07-21 10:23:12,354 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2022-07-21 10:23:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 10:23:12,355 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 10:23:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure vhci_to_hcd [2022-07-21 10:23:12,355 INFO L138 BoogieDeclarations]: Found implementation of procedure vhci_to_hcd [2022-07-21 10:23:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 10:23:12,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 10:23:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 10:23:12,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 10:23:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 10:23:12,356 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 10:23:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 10:23:12,356 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 10:23:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_giveback_urb [2022-07-21 10:23:12,356 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_giveback_urb [2022-07-21 10:23:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 10:23:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 10:23:12,357 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 10:23:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 10:23:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 10:23:12,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 10:23:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 10:23:12,357 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 10:23:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 10:23:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 10:23:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-07-21 10:23:12,358 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-07-21 10:23:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure usbip_event_add [2022-07-21 10:23:12,358 INFO L138 BoogieDeclarations]: Found implementation of procedure usbip_event_add [2022-07-21 10:23:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-21 10:23:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-21 10:23:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 10:23:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 10:23:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 10:23:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 10:23:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 10:23:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 10:23:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-07-21 10:23:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-07-21 10:23:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-21 10:23:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-21 10:23:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-21 10:23:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-21 10:23:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 10:23:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 10:23:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-07-21 10:23:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-07-21 10:23:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2022-07-21 10:23:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2022-07-21 10:23:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 10:23:12,363 INFO L130 BoogieDeclarations]: Found specification of procedure dump_port_status [2022-07-21 10:23:12,363 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_port_status [2022-07-21 10:23:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure port_to_vdev [2022-07-21 10:23:12,364 INFO L138 BoogieDeclarations]: Found implementation of procedure port_to_vdev [2022-07-21 10:23:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 10:23:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 10:23:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-21 10:23:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-21 10:23:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 10:23:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-21 10:23:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-21 10:23:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 10:23:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 10:23:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev [2022-07-21 10:23:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev [2022-07-21 10:23:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 10:23:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2022-07-21 10:23:12,367 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2022-07-21 10:23:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-07-21 10:23:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 10:23:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 10:23:12,368 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 10:23:12,368 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-21 10:23:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-21 10:23:12,368 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-21 10:23:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-21 10:23:12,368 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-07-21 10:23:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-07-21 10:23:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 10:23:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 10:23:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_vhci [2022-07-21 10:23:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_vhci [2022-07-21 10:23:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-07-21 10:23:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-07-21 10:23:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-21 10:23:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-21 10:23:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev [2022-07-21 10:23:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev [2022-07-21 10:23:12,371 INFO L130 BoogieDeclarations]: Found specification of procedure vhci_dev [2022-07-21 10:23:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure vhci_dev [2022-07-21 10:23:12,371 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 10:23:12,372 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 10:23:12,372 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-21 10:23:12,372 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-21 10:23:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 10:23:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 10:23:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 10:23:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure usbip_task_init [2022-07-21 10:23:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure usbip_task_init [2022-07-21 10:23:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 10:23:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 10:23:12,904 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 10:23:12,909 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 10:23:15,249 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 10:23:15,261 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 10:23:15,262 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 10:23:15,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:23:15 BoogieIcfgContainer [2022-07-21 10:23:15,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 10:23:15,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 10:23:15,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 10:23:15,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 10:23:15,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:23:09" (1/3) ... [2022-07-21 10:23:15,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387fda5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:23:15, skipping insertion in model container [2022-07-21 10:23:15,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:11" (2/3) ... [2022-07-21 10:23:15,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387fda5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:23:15, skipping insertion in model container [2022-07-21 10:23:15,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:23:15" (3/3) ... [2022-07-21 10:23:15,272 INFO L111 eAbstractionObserver]: Analyzing ICFG main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i [2022-07-21 10:23:15,284 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 10:23:15,285 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 10:23:15,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 10:23:15,347 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@726c747e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@199922a1 [2022-07-21 10:23:15,347 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 10:23:15,354 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) [2022-07-21 10:23:15,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-21 10:23:15,362 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:23:15,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:23:15,363 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:23:15,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:23:15,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1287876963, now seen corresponding path program 1 times [2022-07-21 10:23:15,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:23:15,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677768899] [2022-07-21 10:23:15,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:23:15,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:23:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:15,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:23:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:15,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:23:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:15,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:23:15,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:23:15,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677768899] [2022-07-21 10:23:15,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677768899] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:23:15,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:23:15,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:23:15,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093960871] [2022-07-21 10:23:15,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:23:15,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:23:15,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:23:16,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:23:16,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:23:16,008 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) [2022-07-21 10:23:16,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:23:16,257 INFO L93 Difference]: Finished difference Result 2459 states and 3506 transitions. [2022-07-21 10:23:16,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:23:16,259 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 [2022-07-21 10:23:16,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:23:16,287 INFO L225 Difference]: With dead ends: 2459 [2022-07-21 10:23:16,288 INFO L226 Difference]: Without dead ends: 1570 [2022-07-21 10:23:16,299 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 [2022-07-21 10:23:16,304 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 [2022-07-21 10:23:16,305 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] [2022-07-21 10:23:16,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-07-21 10:23:16,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1567. [2022-07-21 10:23:16,443 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) [2022-07-21 10:23:16,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2198 transitions. [2022-07-21 10:23:16,457 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2198 transitions. Word has length 19 [2022-07-21 10:23:16,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:23:16,458 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2198 transitions. [2022-07-21 10:23:16,458 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) [2022-07-21 10:23:16,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2198 transitions. [2022-07-21 10:23:16,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-21 10:23:16,467 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:23:16,468 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] [2022-07-21 10:23:16,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 10:23:16,468 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:23:16,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:23:16,469 INFO L85 PathProgramCache]: Analyzing trace with hash -619409099, now seen corresponding path program 1 times [2022-07-21 10:23:16,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:23:16,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875469590] [2022-07-21 10:23:16,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:23:16,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:23:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:16,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:23:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:16,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:23:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:16,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 10:23:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:16,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:23:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:16,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:23:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:16,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:23:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:16,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 10:23:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:16,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 10:23:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:16,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:23:16,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:23:16,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875469590] [2022-07-21 10:23:16,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875469590] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:23:16,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:23:16,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:23:16,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180804930] [2022-07-21 10:23:16,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:23:16,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:23:16,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:23:16,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:23:16,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:23:16,792 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) [2022-07-21 10:23:16,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:23:16,871 INFO L93 Difference]: Finished difference Result 3093 states and 4339 transitions. [2022-07-21 10:23:16,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:23:16,875 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 [2022-07-21 10:23:16,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:23:16,885 INFO L225 Difference]: With dead ends: 3093 [2022-07-21 10:23:16,885 INFO L226 Difference]: Without dead ends: 1567 [2022-07-21 10:23:16,890 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 [2022-07-21 10:23:16,892 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 [2022-07-21 10:23:16,892 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] [2022-07-21 10:23:16,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2022-07-21 10:23:16,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1567. [2022-07-21 10:23:16,962 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) [2022-07-21 10:23:16,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2197 transitions. [2022-07-21 10:23:16,973 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2197 transitions. Word has length 63 [2022-07-21 10:23:16,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:23:16,974 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2197 transitions. [2022-07-21 10:23:16,974 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) [2022-07-21 10:23:16,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2197 transitions. [2022-07-21 10:23:16,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-21 10:23:16,982 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:23:16,982 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] [2022-07-21 10:23:16,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 10:23:16,982 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:23:16,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:23:16,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1833716892, now seen corresponding path program 1 times [2022-07-21 10:23:16,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:23:16,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378228938] [2022-07-21 10:23:16,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:23:16,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:23:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:17,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:23:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:17,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:23:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:17,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 10:23:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:17,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-21 10:23:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:17,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 10:23:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:17,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 10:23:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:17,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 10:23:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:17,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 10:23:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:17,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:23:17,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:23:17,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378228938] [2022-07-21 10:23:17,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378228938] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:23:17,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:23:17,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:23:17,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910248760] [2022-07-21 10:23:17,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:23:17,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:23:17,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:23:17,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:23:17,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:23:17,283 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) [2022-07-21 10:23:17,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:23:17,397 INFO L93 Difference]: Finished difference Result 3093 states and 4338 transitions. [2022-07-21 10:23:17,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:23:17,398 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 [2022-07-21 10:23:17,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:23:17,406 INFO L225 Difference]: With dead ends: 3093 [2022-07-21 10:23:17,406 INFO L226 Difference]: Without dead ends: 1555 [2022-07-21 10:23:17,412 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 [2022-07-21 10:23:17,413 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 [2022-07-21 10:23:17,413 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] [2022-07-21 10:23:17,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2022-07-21 10:23:17,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1555. [2022-07-21 10:23:17,465 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) [2022-07-21 10:23:17,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2179 transitions. [2022-07-21 10:23:17,477 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2179 transitions. Word has length 67 [2022-07-21 10:23:17,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:23:17,477 INFO L495 AbstractCegarLoop]: Abstraction has 1555 states and 2179 transitions. [2022-07-21 10:23:17,478 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) [2022-07-21 10:23:17,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2179 transitions. [2022-07-21 10:23:17,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-21 10:23:17,482 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:23:17,482 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] [2022-07-21 10:23:17,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 10:23:17,483 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:23:17,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:23:17,483 INFO L85 PathProgramCache]: Analyzing trace with hash 688026883, now seen corresponding path program 1 times [2022-07-21 10:23:17,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:23:17,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337893524] [2022-07-21 10:23:17,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:23:17,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:23:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 10:23:18,109 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 10:23:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 10:23:18,691 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 10:23:18,692 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 10:23:18,693 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 10:23:18,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 10:23:18,698 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-21 10:23:18,703 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 10:23:18,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:23:18 BoogieIcfgContainer [2022-07-21 10:23:18,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 10:23:18,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 10:23:18,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 10:23:18,845 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 10:23:18,845 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:23:15" (3/4) ... [2022-07-21 10:23:18,848 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 10:23:18,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 10:23:18,851 INFO L158 Benchmark]: Toolchain (without parser) took 9234.96ms. Allocated memory was 50.3MB in the beginning and 327.2MB in the end (delta: 276.8MB). Free memory was 27.0MB in the beginning and 139.4MB in the end (delta: -112.4MB). Peak memory consumption was 162.8MB. Max. memory is 16.1GB. [2022-07-21 10:23:18,851 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 50.3MB. Free memory was 32.5MB in the beginning and 32.5MB in the end (delta: 37.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 10:23:18,853 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2252.42ms. Allocated memory was 50.3MB in the beginning and 125.8MB in the end (delta: 75.5MB). Free memory was 26.9MB in the beginning and 58.5MB in the end (delta: -31.6MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. [2022-07-21 10:23:18,853 INFO L158 Benchmark]: Boogie Procedure Inliner took 232.85ms. Allocated memory is still 125.8MB. Free memory was 58.5MB in the beginning and 65.2MB in the end (delta: -6.7MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2022-07-21 10:23:18,853 INFO L158 Benchmark]: Boogie Preprocessor took 171.74ms. Allocated memory is still 125.8MB. Free memory was 65.2MB in the beginning and 48.6MB in the end (delta: 16.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-21 10:23:18,854 INFO L158 Benchmark]: RCFGBuilder took 2987.35ms. Allocated memory was 125.8MB in the beginning and 327.2MB in the end (delta: 201.3MB). Free memory was 48.6MB in the beginning and 213.0MB in the end (delta: -164.4MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. [2022-07-21 10:23:18,854 INFO L158 Benchmark]: TraceAbstraction took 3577.15ms. Allocated memory is still 327.2MB. Free memory was 211.9MB in the beginning and 139.4MB in the end (delta: 72.5MB). Peak memory consumption was 148.0MB. Max. memory is 16.1GB. [2022-07-21 10:23:18,854 INFO L158 Benchmark]: Witness Printer took 4.99ms. Allocated memory is still 327.2MB. Free memory is still 139.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 10:23:18,861 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 50.3MB. Free memory was 32.5MB in the beginning and 32.5MB in the end (delta: 37.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2252.42ms. Allocated memory was 50.3MB in the beginning and 125.8MB in the end (delta: 75.5MB). Free memory was 26.9MB in the beginning and 58.5MB in the end (delta: -31.6MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 232.85ms. Allocated memory is still 125.8MB. Free memory was 58.5MB in the beginning and 65.2MB in the end (delta: -6.7MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 171.74ms. Allocated memory is still 125.8MB. Free memory was 65.2MB in the beginning and 48.6MB in the end (delta: 16.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * RCFGBuilder took 2987.35ms. Allocated memory was 125.8MB in the beginning and 327.2MB in the end (delta: 201.3MB). Free memory was 48.6MB in the beginning and 213.0MB in the end (delta: -164.4MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3577.15ms. Allocated memory is still 327.2MB. Free memory was 211.9MB in the beginning and 139.4MB in the end (delta: 72.5MB). Peak memory consumption was 148.0MB. Max. memory is 16.1GB. * Witness Printer took 4.99ms. Allocated memory is still 327.2MB. Free memory is still 139.4MB. 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: 3.4s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1140 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1137 mSDsluCounter, 10513 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6843 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 3670 mSDtfsCounter, 40 mSolverCounterSat, 0.0s 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: 0.0s SsaConstructionTime, 1.0s 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 [2022-07-21 10:23:18,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 87ebe4cbc19149709e03f5df167fc3a270d2a12f873f1a9ed2e481b56a29b864 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 10:23:20,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 10:23:20,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 10:23:21,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 10:23:21,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 10:23:21,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 10:23:21,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 10:23:21,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 10:23:21,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 10:23:21,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 10:23:21,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 10:23:21,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 10:23:21,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 10:23:21,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 10:23:21,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 10:23:21,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 10:23:21,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 10:23:21,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 10:23:21,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 10:23:21,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 10:23:21,060 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 10:23:21,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 10:23:21,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 10:23:21,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 10:23:21,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 10:23:21,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 10:23:21,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 10:23:21,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 10:23:21,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 10:23:21,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 10:23:21,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 10:23:21,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 10:23:21,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 10:23:21,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 10:23:21,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 10:23:21,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 10:23:21,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 10:23:21,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 10:23:21,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 10:23:21,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 10:23:21,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 10:23:21,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 10:23:21,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 10:23:21,123 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 10:23:21,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 10:23:21,124 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 10:23:21,125 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 10:23:21,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 10:23:21,126 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 10:23:21,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 10:23:21,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 10:23:21,127 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 10:23:21,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 10:23:21,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 10:23:21,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 10:23:21,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 10:23:21,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 10:23:21,129 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 10:23:21,129 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 10:23:21,129 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 10:23:21,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 10:23:21,130 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 10:23:21,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 10:23:21,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 10:23:21,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 10:23:21,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 10:23:21,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:23:21,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 10:23:21,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 10:23:21,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 10:23:21,132 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 10:23:21,132 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 10:23:21,132 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 10:23:21,133 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 10:23:21,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 10:23:21,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 10:23:21,133 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87ebe4cbc19149709e03f5df167fc3a270d2a12f873f1a9ed2e481b56a29b864 [2022-07-21 10:23:21,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 10:23:21,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 10:23:21,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 10:23:21,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 10:23:21,505 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 10:23:21,508 INFO L432 ainManager$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 [2022-07-21 10:23:21,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c78d35a89/61050f75f6274fde8ba3b57c86fea084/FLAG43d60fff4 [2022-07-21 10:23:22,369 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 10:23:22,370 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 [2022-07-21 10:23:22,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c78d35a89/61050f75f6274fde8ba3b57c86fea084/FLAG43d60fff4 [2022-07-21 10:23:22,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c78d35a89/61050f75f6274fde8ba3b57c86fea084 [2022-07-21 10:23:22,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 10:23:22,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 10:23:22,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 10:23:22,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 10:23:22,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 10:23:22,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:23:22" (1/1) ... [2022-07-21 10:23:22,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41b580c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:22, skipping insertion in model container [2022-07-21 10:23:22,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:23:22" (1/1) ... [2022-07-21 10:23:22,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 10:23:22,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:23:24,553 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] [2022-07-21 10:23:24,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:23:24,657 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 10:23:24,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:23:24,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i[260799,260812] [2022-07-21 10:23:24,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:23:25,021 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 10:23:25,390 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] [2022-07-21 10:23:25,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:23:25,508 INFO L208 MainTranslator]: Completed translation [2022-07-21 10:23:25,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:25 WrapperNode [2022-07-21 10:23:25,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 10:23:25,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 10:23:25,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 10:23:25,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 10:23:25,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:25" (1/1) ... [2022-07-21 10:23:25,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:25" (1/1) ... [2022-07-21 10:23:25,730 INFO L137 Inliner]: procedures = 218, calls = 1862, calls flagged for inlining = 100, calls inlined = 66, statements flattened = 2985 [2022-07-21 10:23:25,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 10:23:25,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 10:23:25,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 10:23:25,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 10:23:25,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:25" (1/1) ... [2022-07-21 10:23:25,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:25" (1/1) ... [2022-07-21 10:23:25,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:25" (1/1) ... [2022-07-21 10:23:25,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:25" (1/1) ... [2022-07-21 10:23:25,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:25" (1/1) ... [2022-07-21 10:23:25,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:25" (1/1) ... [2022-07-21 10:23:25,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:25" (1/1) ... [2022-07-21 10:23:25,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 10:23:25,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 10:23:25,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 10:23:25,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 10:23:25,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:25" (1/1) ... [2022-07-21 10:23:25,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:23:25,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:23:25,989 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) [2022-07-21 10:23:26,013 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 [2022-07-21 10:23:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 10:23:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-07-21 10:23:26,027 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-07-21 10:23:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 10:23:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 10:23:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 10:23:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-07-21 10:23:26,028 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-07-21 10:23:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2022-07-21 10:23:26,028 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2022-07-21 10:23:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 10:23:26,028 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 10:23:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure vhci_to_hcd [2022-07-21 10:23:26,029 INFO L138 BoogieDeclarations]: Found implementation of procedure vhci_to_hcd [2022-07-21 10:23:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 10:23:26,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 10:23:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 10:23:26,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 10:23:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 10:23:26,029 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 10:23:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 10:23:26,030 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 10:23:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_giveback_urb [2022-07-21 10:23:26,030 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_giveback_urb [2022-07-21 10:23:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 10:23:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 10:23:26,030 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 10:23:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 10:23:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 10:23:26,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 10:23:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 10:23:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 10:23:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 10:23:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 10:23:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 10:23:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 10:23:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 10:23:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 10:23:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-07-21 10:23:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-07-21 10:23:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure usbip_event_add [2022-07-21 10:23:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure usbip_event_add [2022-07-21 10:23:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 10:23:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 10:23:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 10:23:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-21 10:23:26,034 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-21 10:23:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 10:23:26,035 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 10:23:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 10:23:26,036 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 10:23:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 10:23:26,036 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 10:23:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-07-21 10:23:26,037 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-07-21 10:23:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-21 10:23:26,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-21 10:23:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-21 10:23:26,038 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-21 10:23:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 10:23:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 10:23:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-07-21 10:23:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-07-21 10:23:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2022-07-21 10:23:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2022-07-21 10:23:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure dump_port_status [2022-07-21 10:23:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_port_status [2022-07-21 10:23:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure port_to_vdev [2022-07-21 10:23:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure port_to_vdev [2022-07-21 10:23:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 10:23:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 10:23:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-21 10:23:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-21 10:23:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-21 10:23:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-21 10:23:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 10:23:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 10:23:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev [2022-07-21 10:23:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev [2022-07-21 10:23:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 10:23:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2022-07-21 10:23:26,042 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2022-07-21 10:23:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-07-21 10:23:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 10:23:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 10:23:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 10:23:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-21 10:23:26,044 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-21 10:23:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-21 10:23:26,044 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-21 10:23:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-07-21 10:23:26,044 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-07-21 10:23:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 10:23:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 10:23:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_vhci [2022-07-21 10:23:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_vhci [2022-07-21 10:23:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-07-21 10:23:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-07-21 10:23:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-21 10:23:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-21 10:23:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev [2022-07-21 10:23:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev [2022-07-21 10:23:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure vhci_dev [2022-07-21 10:23:26,047 INFO L138 BoogieDeclarations]: Found implementation of procedure vhci_dev [2022-07-21 10:23:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 10:23:26,047 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 10:23:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-21 10:23:26,047 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-21 10:23:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 10:23:26,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 10:23:26,048 INFO L130 BoogieDeclarations]: Found specification of procedure usbip_task_init [2022-07-21 10:23:26,049 INFO L138 BoogieDeclarations]: Found implementation of procedure usbip_task_init [2022-07-21 10:23:26,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 10:23:26,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 10:23:26,573 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 10:23:26,576 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 10:23:38,405 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 10:23:38,426 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 10:23:38,430 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 10:23:38,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:23:38 BoogieIcfgContainer [2022-07-21 10:23:38,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 10:23:38,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 10:23:38,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 10:23:38,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 10:23:38,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:23:22" (1/3) ... [2022-07-21 10:23:38,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f3becf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:23:38, skipping insertion in model container [2022-07-21 10:23:38,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:25" (2/3) ... [2022-07-21 10:23:38,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f3becf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:23:38, skipping insertion in model container [2022-07-21 10:23:38,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:23:38" (3/3) ... [2022-07-21 10:23:38,446 INFO L111 eAbstractionObserver]: Analyzing ICFG main3_drivers-staging-usbip-vhci-hcd-ko--132_1a--927c3fa.i [2022-07-21 10:23:38,458 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 10:23:38,459 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 10:23:38,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 10:23:38,557 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@e8a9e4f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2f8a5a21 [2022-07-21 10:23:38,561 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 10:23:38,568 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) [2022-07-21 10:23:38,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-21 10:23:38,575 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:23:38,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:23:38,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:23:38,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:23:38,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1287876963, now seen corresponding path program 1 times [2022-07-21 10:23:38,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:23:38,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012025941] [2022-07-21 10:23:38,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:23:38,597 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:23:38,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:23:38,600 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) [2022-07-21 10:23:38,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 10:23:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:39,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 1795 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:23:39,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:23:39,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:23:39,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:23:39,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:23:39,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012025941] [2022-07-21 10:23:39,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012025941] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:23:39,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:23:39,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 10:23:39,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68549139] [2022-07-21 10:23:39,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:23:39,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:23:39,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:23:39,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:23:39,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:23:39,730 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) [2022-07-21 10:23:39,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:23:39,960 INFO L93 Difference]: Finished difference Result 2459 states and 3506 transitions. [2022-07-21 10:23:39,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:23:39,963 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 [2022-07-21 10:23:39,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:23:39,983 INFO L225 Difference]: With dead ends: 2459 [2022-07-21 10:23:39,984 INFO L226 Difference]: Without dead ends: 1570 [2022-07-21 10:23:39,995 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 [2022-07-21 10:23:39,999 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 [2022-07-21 10:23:40,000 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] [2022-07-21 10:23:40,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-07-21 10:23:40,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1567. [2022-07-21 10:23:40,123 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) [2022-07-21 10:23:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2198 transitions. [2022-07-21 10:23:40,136 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2198 transitions. Word has length 19 [2022-07-21 10:23:40,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:23:40,136 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2198 transitions. [2022-07-21 10:23:40,137 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) [2022-07-21 10:23:40,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2198 transitions. [2022-07-21 10:23:40,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-21 10:23:40,145 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:23:40,146 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] [2022-07-21 10:23:40,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 10:23:40,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:23:40,372 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:23:40,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:23:40,373 INFO L85 PathProgramCache]: Analyzing trace with hash -619409099, now seen corresponding path program 1 times [2022-07-21 10:23:40,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:23:40,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [307182469] [2022-07-21 10:23:40,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:23:40,375 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:23:40,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:23:40,376 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) [2022-07-21 10:23:40,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 10:23:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:41,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1912 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:23:41,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:23:41,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:23:41,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:23:41,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:23:41,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [307182469] [2022-07-21 10:23:41,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [307182469] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:23:41,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:23:41,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:23:41,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303615579] [2022-07-21 10:23:41,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:23:41,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:23:41,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:23:41,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:23:41,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:23:41,452 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) [2022-07-21 10:23:41,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:23:41,563 INFO L93 Difference]: Finished difference Result 3093 states and 4339 transitions. [2022-07-21 10:23:41,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:23:41,564 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 [2022-07-21 10:23:41,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:23:41,574 INFO L225 Difference]: With dead ends: 3093 [2022-07-21 10:23:41,574 INFO L226 Difference]: Without dead ends: 1567 [2022-07-21 10:23:41,580 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 [2022-07-21 10:23:41,583 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 [2022-07-21 10:23:41,583 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] [2022-07-21 10:23:41,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2022-07-21 10:23:41,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1567. [2022-07-21 10:23:41,658 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) [2022-07-21 10:23:41,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2197 transitions. [2022-07-21 10:23:41,670 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2197 transitions. Word has length 63 [2022-07-21 10:23:41,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:23:41,670 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2197 transitions. [2022-07-21 10:23:41,670 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) [2022-07-21 10:23:41,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2197 transitions. [2022-07-21 10:23:41,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-21 10:23:41,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:23:41,679 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] [2022-07-21 10:23:41,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 10:23:41,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:23:41,896 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:23:41,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:23:41,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1833716892, now seen corresponding path program 1 times [2022-07-21 10:23:41,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:23:41,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843376302] [2022-07-21 10:23:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:23:41,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:23:41,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:23:41,900 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) [2022-07-21 10:23:41,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 10:23:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:23:42,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 10:23:42,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:23:42,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:23:42,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:23:42,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:23:42,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843376302] [2022-07-21 10:23:42,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843376302] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:23:42,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:23:42,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:23:42,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377485490] [2022-07-21 10:23:42,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:23:42,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:23:42,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:23:42,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:23:42,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:23:42,866 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) [2022-07-21 10:23:42,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:23:42,998 INFO L93 Difference]: Finished difference Result 3093 states and 4338 transitions. [2022-07-21 10:23:42,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:23:42,999 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 [2022-07-21 10:23:42,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:23:43,007 INFO L225 Difference]: With dead ends: 3093 [2022-07-21 10:23:43,008 INFO L226 Difference]: Without dead ends: 1555 [2022-07-21 10:23:43,013 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 [2022-07-21 10:23:43,015 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 [2022-07-21 10:23:43,015 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] [2022-07-21 10:23:43,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2022-07-21 10:23:43,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1555. [2022-07-21 10:23:43,066 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) [2022-07-21 10:23:43,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2179 transitions. [2022-07-21 10:23:43,076 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2179 transitions. Word has length 67 [2022-07-21 10:23:43,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:23:43,076 INFO L495 AbstractCegarLoop]: Abstraction has 1555 states and 2179 transitions. [2022-07-21 10:23:43,076 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) [2022-07-21 10:23:43,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2179 transitions. [2022-07-21 10:23:43,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-21 10:23:43,080 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:23:43,080 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] [2022-07-21 10:23:43,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 10:23:43,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:23:43,300 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:23:43,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:23:43,300 INFO L85 PathProgramCache]: Analyzing trace with hash 688026883, now seen corresponding path program 1 times [2022-07-21 10:23:43,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:23:43,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533320395] [2022-07-21 10:23:43,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:23:43,303 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:23:43,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:23:43,304 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) [2022-07-21 10:23:43,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 10:24:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 10:24:03,326 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 10:24:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 10:24:25,760 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-21 10:24:25,761 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 10:24:25,762 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 10:24:25,826 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-21 10:24:25,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:24:25,986 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-21 10:24:25,989 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 10:24:26,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:24:26 BoogieIcfgContainer [2022-07-21 10:24:26,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 10:24:26,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 10:24:26,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 10:24:26,120 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 10:24:26,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:23:38" (3/4) ... [2022-07-21 10:24:26,124 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 10:24:26,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 10:24:26,125 INFO L158 Benchmark]: Toolchain (without parser) took 63565.93ms. Allocated memory was 58.7MB in the beginning and 526.4MB in the end (delta: 467.7MB). Free memory was 26.3MB in the beginning and 354.5MB in the end (delta: -328.2MB). Peak memory consumption was 140.9MB. Max. memory is 16.1GB. [2022-07-21 10:24:26,127 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 40.5MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 10:24:26,127 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2947.08ms. Allocated memory was 58.7MB in the beginning and 169.9MB in the end (delta: 111.1MB). Free memory was 26.0MB in the beginning and 105.3MB in the end (delta: -79.2MB). Peak memory consumption was 73.1MB. Max. memory is 16.1GB. [2022-07-21 10:24:26,128 INFO L158 Benchmark]: Boogie Procedure Inliner took 220.79ms. Allocated memory is still 169.9MB. Free memory was 105.3MB in the beginning and 88.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-21 10:24:26,128 INFO L158 Benchmark]: Boogie Preprocessor took 213.76ms. Allocated memory is still 169.9MB. Free memory was 88.0MB in the beginning and 100.2MB in the end (delta: -12.2MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2022-07-21 10:24:26,128 INFO L158 Benchmark]: RCFGBuilder took 12492.08ms. Allocated memory was 169.9MB in the beginning and 287.3MB in the end (delta: 117.4MB). Free memory was 100.2MB in the beginning and 190.0MB in the end (delta: -89.8MB). Peak memory consumption was 159.6MB. Max. memory is 16.1GB. [2022-07-21 10:24:26,129 INFO L158 Benchmark]: TraceAbstraction took 47679.05ms. Allocated memory was 287.3MB in the beginning and 526.4MB in the end (delta: 239.1MB). Free memory was 190.0MB in the beginning and 355.5MB in the end (delta: -165.5MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. [2022-07-21 10:24:26,130 INFO L158 Benchmark]: Witness Printer took 4.30ms. Allocated memory is still 526.4MB. Free memory was 355.5MB in the beginning and 354.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 10:24:26,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 40.5MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2947.08ms. Allocated memory was 58.7MB in the beginning and 169.9MB in the end (delta: 111.1MB). Free memory was 26.0MB in the beginning and 105.3MB in the end (delta: -79.2MB). Peak memory consumption was 73.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 220.79ms. Allocated memory is still 169.9MB. Free memory was 105.3MB in the beginning and 88.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 213.76ms. Allocated memory is still 169.9MB. Free memory was 88.0MB in the beginning and 100.2MB in the end (delta: -12.2MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * RCFGBuilder took 12492.08ms. Allocated memory was 169.9MB in the beginning and 287.3MB in the end (delta: 117.4MB). Free memory was 100.2MB in the beginning and 190.0MB in the end (delta: -89.8MB). Peak memory consumption was 159.6MB. Max. memory is 16.1GB. * TraceAbstraction took 47679.05ms. Allocated memory was 287.3MB in the beginning and 526.4MB in the end (delta: 239.1MB). Free memory was 190.0MB in the beginning and 355.5MB in the end (delta: -165.5MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. * Witness Printer took 4.30ms. Allocated memory is still 526.4MB. Free memory was 355.5MB in the beginning and 354.5MB 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: 47.5s, 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, 21.7s SatisfiabilityAnalysisTime, 0.3s 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 [2022-07-21 10:24:26,207 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